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China high quality Hot Product Good Quality All in One 7.5kw 11kw 15kw 22kw 8 10 16 Bar AC Power Electric Oilless Industrial Integrated Screw Air Laser Cutting CHINAMFG air compressor price

Product Description

Product Description

product introduction
Model:OPA-30PV/16
Power:22kw
Horsepower:30hp
Color:Blue and white
Specification:1850*870*1850mm
Weight:530kg
Air tank:500L
System language:Can be customized

Detailed Photos

High reliability
High reliability, few parts and nowearing parts, so it runs reliably andhas a long service life. Generally, thedesign life of the main screw machiHangZhouad is 15-20 years.

High reliability
High reliability, few parts and nowearing parts, so it runs reliably andhas a long service life. Generally, thedesign life of the main screw machiHangZhouad is 15-20 years.

 

Certifications

OPPAIR’s quality meets EU standards and has CE quality inspection certificate.

The testing agency is a recognized certification agency in Italy. After certification at our factory site, strict machine testing and CE certificate are issued. Authority, more trustworthy.

The following picture is the certification certificate issued by SGS company after the on-site certification of our company. Field Certification CHINAMFG is a trusted manufacturer.   

Packaging & Shipping

Our company cleans the inside and outside of the product before delivery, and then covers it with multi-layer industrial stretch film, bubble film, anti-collision column, and finally loads it with wooden pallets or wooden boxes.
 

 

Product Parameters

4 in 1 High Pressure Series 
Model OPA-15F/16 OPA-20F/16 OPA-30F/16 OPA-15PV/16 OPA-20PV/16 OPA-30PV/16
Power(kw) 11 15 22 11 15 22
Horsepower(hp) 15 20 30 15 20 30
Air displacement/
Working pressure (m³/min. / Bar)
1.0/16 1.2/16 2.0/16 1.0/16 1.2/16 2.0/16
Air Tank(L) 380/500 380/500 500 380/500 380/500 500
Type Fixed Speed Fixed Speed Fixed Speed PM VSD PM VSD PM VSD
Air out
let diameter
DN20 DN20 DN20 DN20 DN20 DN20
Driven method Direct driven Direct driven Direct driven Direct driven Direct driven Direct driven
Start method Υ-Δ Υ-Δ Υ-Δ PM VSD
Length (mm) 1820 1820 1850 1820 1820 1850
Width (mm) 760 760 870 760 760 870
Height (mm) 1800 1800 1850 1800 1800 1850
Weight (kg) 420 420 530 420 420 530

Company Profile

       ZheJiang CHINAMFG Machinery Manufacturing Co.,Ld base in HangZhou ZheJiang , anAAA-level enterprise with high-quality service and integrity in China.
OPPAIR as 1 of the world’s largest air compressor system suppliers, currently developing the following products: Fixed-speed Air Compressors, Permanent Magnet VariableFrequency Air Compressors, Permanent Magnet Variable Frequency Two-stage Air Compressors, 4-IN-1 Air Compressors (lntegrated Air Compressor for Laser Cutting Machine)Supercharger, CHINAMFG Air Dryer, Adsorption Dryer, Air Storage Tank and related accessories. 
 

FAQ

Q1: Why do customers choose us?

A: ZheJiang CHINAMFG Machinery Manufacturing Co., Ltd. has a history of 16 years. We specialize in the production of screw air compressors. We warmly welcome your small trial orders for quality or market testing, and we offer special services.

Q2: Are you a manufacturer or a trading company?
A: We are a professional manufacturer with a large modern factory in HangZhou, China. OEM and ODM services can be accepted.

Q3: What is your delivery time?
A: 380V 50HZ We can ship within 10 days. It takes 20 days for other voltages, if you need to rush, please contact our sales staff in advance.

Q4: How long is the warranty period of your air compressor?
A: One year for the whole machine and 2 years for the screw host, excluding consumables.

Q5: How long can your air compressor last?
A: More than 10 years under normal use.

Q6: What are the payment terms?
A: T/T, L/C, Western Union, Credit Card, etc. We can also accept USD, RMB, EUR and other currencies.

Q7: Will you provide some spare parts for the machine?
A: Yes, of course.

Q8: Can you accept OEM orders?
A: Yes, with a professional design team, OEM orders are very welcome.

Q9: What kind of trade terms can you accept?
A: Available trade terms: FOB, CIF, EXW, etc.

Q10: How about the product packaging?
A: We strictly pack our products in standard airworthy boxes.
 

After-sales Service: 1year
Warranty: 1year
Lubrication Style: Oil-less
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Angular
Samples:
US$ 3755/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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air compressor

What role do air dryers play in compressed air systems?

Air dryers play a crucial role in compressed air systems by removing moisture and contaminants from the compressed air. Compressed air, when generated, contains water vapor from the ambient air, which can condense and cause issues in the system and end-use applications. Here’s an overview of the role air dryers play in compressed air systems:

1. Moisture Removal:

Air dryers are primarily responsible for removing moisture from the compressed air. Moisture in compressed air can lead to problems such as corrosion in the system, damage to pneumatic tools and equipment, and compromised product quality in manufacturing processes. Air dryers utilize various techniques, such as refrigeration, adsorption, or membrane separation, to reduce the dew point of the compressed air and eliminate moisture.

2. Contaminant Removal:

In addition to moisture, compressed air can also contain contaminants like oil, dirt, and particles. Air dryers help in removing these contaminants to ensure clean and high-quality compressed air. Depending on the type of air dryer, additional filtration mechanisms may be incorporated to enhance the removal of oil, particulates, and other impurities from the compressed air stream.

3. Protection of Equipment and Processes:

By removing moisture and contaminants, air dryers help protect the downstream equipment and processes that rely on compressed air. Moisture and contaminants can negatively impact the performance, reliability, and lifespan of pneumatic tools, machinery, and instrumentation. Air dryers ensure that the compressed air supplied to these components is clean, dry, and free from harmful substances, minimizing the risk of damage and operational issues.

4. Improved Productivity and Efficiency:

Utilizing air dryers in compressed air systems can lead to improved productivity and efficiency. Dry and clean compressed air reduces the likelihood of equipment failures, downtime, and maintenance requirements. It also prevents issues such as clogging of air lines, malfunctioning of pneumatic components, and inconsistent performance of processes. By maintaining the quality of compressed air, air dryers contribute to uninterrupted operations, optimized productivity, and cost savings.

5. Compliance with Standards and Specifications:

Many industries and applications have specific standards and specifications for the quality of compressed air. Air dryers play a vital role in meeting these requirements by ensuring that the compressed air meets the desired quality standards. This is particularly important in industries such as food and beverage, pharmaceuticals, electronics, and automotive, where clean and dry compressed air is essential for product integrity, safety, and regulatory compliance.

By incorporating air dryers into compressed air systems, users can effectively control moisture and contaminants, protect equipment and processes, enhance productivity, and meet the necessary quality standards for their specific applications.

air compressor

What is the role of air compressors in manufacturing and industrial processes?

Air compressors play a crucial role in various manufacturing and industrial processes, providing a reliable source of compressed air that powers a wide range of equipment and tools. Here are some key roles of air compressors in manufacturing and industrial settings:

1. Pneumatic Tools and Equipment:

Air compressors power a wide range of pneumatic tools and equipment used in manufacturing processes. These tools include impact wrenches, air drills, sanders, grinders, nail guns, and spray guns. Compressed air provides the necessary force and energy for these tools, enabling efficient and precise operations.

2. Automation and Control Systems:

Compressed air is used in automation and control systems within manufacturing facilities. Pneumatic actuators and valves use compressed air to control the movement of machinery and components. These systems are widely used in assembly lines, packaging operations, and material handling processes.

3. Air Blowing and Cleaning:

Compressed air is employed for blowing and cleaning applications in manufacturing and industrial processes. Air blowguns and air nozzles are used to remove debris, dust, and contaminants from surfaces, machinery, and products. Compressed air is also used for drying, cooling, and purging operations.

4. Air Separation and Gas Generation:

Air compressors are used in air separation plants to generate industrial gases such as nitrogen, oxygen, and argon. These gases are essential for various industrial processes, including metal fabrication, chemical production, and food packaging.

5. HVAC Systems:

Compressed air is utilized in heating, ventilation, and air conditioning (HVAC) systems. It powers pneumatic actuators for damper control, pneumatic controls for pressure regulation, and pneumatic valves for flow control in HVAC applications.

6. Air Compression for Storage and Transport:

Compressed air is used for storage and transport purposes in manufacturing and industrial settings. It is often used to pressurize storage tanks or containers that hold gases or liquids. Compressed air also facilitates the transfer of materials through pipelines and pneumatic conveying systems.

7. Process Instrumentation:

Compressed air is utilized in process instrumentation and control systems. It powers pneumatic instruments such as pressure gauges, flow meters, and control valves. These instruments play a critical role in monitoring and regulating various parameters in industrial processes.

8. Material Handling and Pneumatic Conveying:

In manufacturing and industrial facilities, compressed air is used for material handling and pneumatic conveying systems. It enables the movement of bulk materials such as powders, granules, and pellets through pipelines, facilitating efficient and controlled material transfer.

Overall, air compressors are vital components in manufacturing and industrial processes, providing a versatile and efficient source of power for a wide range of applications. The specific role of air compressors may vary depending on the industry, process requirements, and operational needs.

air compressor

What are the safety considerations when operating an air compressor?

Operating an air compressor requires careful attention to safety to prevent accidents, injuries, and equipment damage. Here are some important safety considerations to keep in mind:

1. Read the Manual: Before operating an air compressor, thoroughly read and understand the manufacturer’s instruction manual. Familiarize yourself with the specific safety guidelines, recommended operating procedures, and any specific precautions or warnings provided by the manufacturer.

2. Proper Ventilation: Ensure that the area where the air compressor is operated has adequate ventilation. Compressed air can produce high levels of heat and exhaust gases. Good ventilation helps dissipate heat, prevent the buildup of fumes, and maintain a safe working environment.

3. Personal Protective Equipment (PPE): Always wear appropriate personal protective equipment, including safety glasses or goggles, hearing protection, and non-slip footwear. Depending on the task, additional PPE such as gloves, a dust mask, or a face shield may be necessary to protect against specific hazards.

4. Pressure Relief: Air compressors should be equipped with pressure relief valves or devices to prevent overpressurization. Ensure that these safety features are in place and functioning correctly. Regularly inspect and test the pressure relief mechanism to ensure its effectiveness.

5. Secure Connections: Use proper fittings, hoses, and couplings to ensure secure connections between the air compressor, air tools, and accessories. Inspect all connections before operation to avoid leaks or sudden hose disconnections, which can cause injuries or damage.

6. Inspect and Maintain: Regularly inspect the air compressor for any signs of damage, wear, or leaks. Ensure that all components, including hoses, fittings, and safety devices, are in good working condition. Follow the manufacturer’s recommended maintenance schedule to keep the compressor in optimal shape.

7. Electrical Safety: If the air compressor is electric-powered, take appropriate electrical safety precautions. Use grounded outlets and avoid using extension cords unless approved for the compressor’s power requirements. Protect electrical connections from moisture and avoid operating the compressor in wet or damp environments.

8. Safe Start-Up and Shut-Down: Properly start and shut down the air compressor following the manufacturer’s instructions. Ensure that all air valves are closed before starting the compressor and release all pressure before performing maintenance or repairs.

9. Training and Competence: Ensure that operators are adequately trained and competent in using the air compressor and associated tools. Provide training on safe operating procedures, hazard identification, and emergency response protocols.

10. Emergency Preparedness: Have a clear understanding of emergency procedures and how to respond to potential accidents or malfunctions. Know the location of emergency shut-off valves, fire extinguishers, and first aid kits.

By adhering to these safety considerations and implementing proper safety practices, the risk of accidents and injuries associated with operating an air compressor can be significantly reduced. Prioritizing safety promotes a secure and productive working environment.

China high quality Hot Product Good Quality All in One 7.5kw 11kw 15kw 22kw 8 10 16 Bar AC Power Electric Oilless Industrial Integrated Screw Air Laser Cutting CHINAMFG   air compressor priceChina high quality Hot Product Good Quality All in One 7.5kw 11kw 15kw 22kw 8 10 16 Bar AC Power Electric Oilless Industrial Integrated Screw Air Laser Cutting CHINAMFG   air compressor price
editor by CX 2023-09-27

China Best Sales AC Power 3.7 Kw 5 HP 8 Bar 10 Bar 12 Bar Direct Drive Pm VSD Oilless Scroll Type Air Compressor for Nitrogen Generator wholesaler

Product Description

8~12bar DIRECT-DRIVE OIL-FREE SCROLL AIR COMPRESSOR (PM VSD)
 

Precision air end(2 years warranty)
High precision, stiffness, and durable square air-end ensure max pressure 12bar.
IP67 protection level, F insulation level, Efficiency is improved 10%

PM motor & Variable frequency inverter
VSD soft no current impact. Inverter adjusts motor speed automatically, saving energy and long service life.

Direct drive
The motor is connected with the air-end directly, without THE belt, coupling, no need for adjustment, super low noise

Individual cooling fan
Low discharge compressed air temperature after cooled by an individual fan to ensure the low-pressure dew point.

Purity stainless steel air tank
Stainless Steel pipe and connection

Super quiet
Smart structure and advanced soundproof casing to reduce the noise to 49dB(A)

Intelligent PLC controller
Display operation situation of air-end
Remind maintenance timely

Product Parameters

 

Product Description

 

1. The orbiting scroll and fixed scroll housing are mated to create the compression chambers.
2. The continual movement of the orbiting scroll moves atmospheric air from the intake toward to the center, compressing the air into progressively smaller areas.
3. The continual movement of the orbiting scroll moves atmospheric air from the intake toward to the center, compressing the air into progressively smaller areas.
 

 

Hot Sale Products

 

 

 

           2~10bar Oil-injected                        7~16bar All-in-1                       Small Single-phase
       Screw Air Compressor                   Screw Air Compressor                 Screw Air Compressor  

 

         2~40bar 100% Oil-free                   8~12bar 100% Oil-free                Diesel Engine Portable
       Screw Air Compressor                   Scroll Air Compressor                 Screw Air Compressor  

 

 

Main Product

 

What we can supply:

* Oil-injected Screw Air Compressor (2~16 bar)
* All-in-1 Screw Air Compressor with Tank, Dryer, and Filters (7~16 bar)
* Single-phase Small Screw Air Compressor for Home use (8~10 bar)
* Water-injected Oil-free Screw Air Compressor (2~40 bar)
* Oil-free Scroll Air Compressor (8~12 bar)
* Diesel&Electric Engine Portable Screw Air Compressor (8~30 bar)
* Air Dryer, Air tank, Filters, and other Spare parts

After-sales Service: 24*7 Online Services and Video Guide
Warranty: 1 Year for The Whole Machine & 2 Years for Air End
Installation Type: Stationary Type
Lubrication Style: Oil-free
Product Name: Oil-Free Scroll Air Compressor
Working Pressure: 8~12 Bar
Customization:
Available

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air-compressor

How to Choose the Right Air Compressor

An air compressor uses pressurized air to power a variety of tools. They are most commonly used to power nailers and impact wrenches. Other popular uses for air compressors include paint sprayers and impact wrenches. While all air compressors have the same basic construction, their specialty differs. Ultimately, their differences come down to the amount of air they can push. Read on for information on each type of air compressor. These tools are great for many different purposes, and choosing the right air compressor depends on your specific needs.

Electric motor

While purchasing an electric motor for air compressor, compatibility is a key factor. Not all motors work with the same type of air compressor, so it’s important to check the manufacturer’s instructions before purchasing. By doing this, you can avoid wasting money on an incompatible motor. Another important consideration is speed. A motor’s speed is its rate of rotation, measured in revolutions per minute. It is critical that you purchase a motor with sufficient speed to meet the needs of your air compressor.
Typically, an electric motor for air compressor is 1.5 hp. It is ideal for use with medical equipment and metal-cutting machines. It also performs well under continuous operation and offers a high efficiency and energy-saving performance. Moreover, it features an attractive price, making it a good choice for a wide range of applications. If you are looking for a motor for an air compressor, look no further than a ZYS series.
A motor’s protection class indicates how the motor will operate. Protection classes are specified by the IEC 60034-5. These are stated with two digits and represent the protection against solid objects and water. For example, an IP23 rating means that the motor will be protected from solid objects, while IP54 means that it will protect from dust and water sprayed from all directions. It is vital to choose a motor with the correct protection class for your air compressor.
When choosing an electric motor, you should consider whether it’s compatible with the brand of air compressor. Some may be compatible, while others may require advanced electronics skills to repair. However, most air compressors are covered by warranty, so it’s important to check with the manufacturer if the warranty is still in effect before you spend a dime on a replacement. The motor should be replaced if it has failed to perform as designed.
air-compressor

Oil bath

Air compressors require proper lubrication to function efficiently. The piston must draw air with minimal friction. Depending on their design, air compressors can either be oil-lubricated or oil-free. The former uses oil to reduce piston friction, while the latter splashes it on the cylinder bearings and walls. Such air compressors are commonly known as oil-flooded air compressors. In order to keep their oil baths clean, they are recommended for use in locations with high dust levels.

Start/stop control

An air compressor can be controlled by a start/stop control. This type of control sends a signal to the main motor that activates the compressor when the demand for air falls below a preset limit. This control strategy is effective for smaller air compressors and can be useful for reducing energy costs. Start/stop control is most effective in applications where air pressure does not change frequently and where the compressor is not required to run continuously.
To troubleshoot this problem, you need to check the power supply of your compressor. To check the supply side, use a voltage monitor to determine if power is flowing to the compressor. Ensure that the power supply to the compressor is steady and stable at all times. If it fluctuates, the compressor may not start or stop as expected. If you cannot find the problem with the air compressor power supply, it may be time to replace it.
In addition to the start/stop control, you may want to purchase additional air receivers for your air compressor. These can increase the capacity of air stored and reduce the number of times it starts and stops. Another way to decrease the number of starts per hour is to add more air receivers. Then, you can adjust the control to match your requirements. You can also install a pressure gauge that monitors the compressor’s performance.
Start/stop control for air compressors can be complex, but the basic components are relatively easy to understand. One way to test them is to turn the compressor on or off. It is usually located on the exterior of the motor. If you’re unsure of the location of these components, check the capacitors and make sure that the air compressor is not running while you’re not using it. If it does, try to remove the capacitor.
Variable displacement control is another way to adjust the amount of air flowing into the compressor. By controlling the amount of air, the control can delay the use of additional compressors until more required air is available. In addition to this, the device can also monitor the energy used in the compressor. This control method can result in substantial energy savings. You can even save on the amount of electricity by using variable displacement control. It is essential for efficient compressed air systems.
air-compressor

Variable speed drive

A VFD, or variable frequency drive, is a type of electric motor that adjusts its speed to match the demand for air. It is an efficient way to reduce energy costs and improve system reliability. In fact, studies have shown that a 20% reduction in motor speed can save up to 50% of energy. In addition, a VFD can monitor additional variables such as compressor oil pressure and motor temperature. By eliminating manual checks, a VFD will improve the performance of the application and reduce operating costs.
In addition to reducing energy costs, variable-speed drives also increase productivity. A variable-speed air compressor reduces the risk of system leaks by 30 percent. It also reduces the risk of system leaks by reducing pressure in the system. Because of these advantages, many governments are promoting this technology in their industries. Many even offer incentives to help companies upgrade to variable-speed drives. Therefore, the variable-speed drive can benefit many air compressor installations.
One major benefit of a variable-speed drive is its ability to optimize energy use. Variable frequency drives are able to ramp up and down to match the demand for air. The goal is to optimize the pressure and flow in the system so that the best “dead band” occurs between forty percent and eighty percent of full load. A variable-speed compressor will also increase energy efficiency because of its programmability.
A variable-speed air compressor can also be used to control the amount of air that is compressed by the system. This feature adjusts the frequency of power supplied to the motor based on the demand. If the demand for air is low, the frequency of the motor will reduce to save energy. On the other hand, if there is an excess demand for air, the variable-speed compressor will increase its speed. In addition, this type of air compressor is more efficient than its fixed-speed counterpart.
A VFD has many benefits for compressed air systems. First, it helps stabilize the pressure in the pipe network, thereby reducing the power losses due to upstream pressure. It also helps reduce the power consumption caused by fluctuations in upward pressure. Its benefits are also far-reaching. And as long as the air pressure and air supply is properly sized, a VFD will help optimize the efficiency of compressed air systems.

China Best Sales AC Power 3.7 Kw 5 HP 8 Bar 10 Bar 12 Bar Direct Drive Pm VSD Oilless Scroll Type Air Compressor for Nitrogen Generator   wholesaler China Best Sales AC Power 3.7 Kw 5 HP 8 Bar 10 Bar 12 Bar Direct Drive Pm VSD Oilless Scroll Type Air Compressor for Nitrogen Generator   wholesaler
editor by CX 2023-06-05

China 1 Phase 220230240V 8 Bar~10 Bar 7.5kw tank-mounted 10 hp rotary screw air compressor single phase for Home Workshop air compressor parts

Applicable Industries: Garment Retailers, Developing Substance Retailers, Manufacturing Plant, Machinery Fix Retailers, Foodstuff & Beverage Manufacturing facility, Farms, Retail, Meals Shop, Printing Stores, Construction works , Vitality & Mining, Coupling Maker TS3F-56-14-sixteen One Plate Springs Coupling Very hot promoting Aluminum Alloy mini disc coupling Meals & Beverage Retailers, Advertising Company, Other
Showroom Place: None
Condition: New
Variety: Screw
Configuration: Stationary
Power Resource: AC Electrical power
Lubrication Type: Lubricated
Mute: Of course
Design Quantity: 2 in 1 AVFB-10A(7.5KW/10HP)
Voltage: personalized
Dimension(L*W*H): 1600*730*1550(mm)
Fat: 380kg
Guarantee: 1 12 months
Functioning Strain: 7 bar, 8 bar, 12 bar, ten bar
Air capability: 1.1m3/min
Machinery Check Report: Offered
Online video outgoing-inspection: Presented
Marketing Type: Scorching Solution 2571
Warranty of main elements: 2 a long time
Core Elements: PLC, Stress vessel, Engine, Gear, Motor, Pump, motorbike sprocket HERO PUCH-33T Bearing
Gas Sort: Air
Cooling approach: Air cooling
OEM: Welcomed
Color: Customized Coloration
Application: Basic Industry
Stage: Single Period
Packaging Details: Standard export packing for screw air compressor
Port: HangZhou

one Period 220/230/240V 8 Bar~10 Bar 7.5kw tank-mounted 10 hp rotary screw air compressor one phase for Residence Workshop
>>C l i c k H e r e F o r M o r e I n f o r m a t i o n ! ! !

Screw Air Compressor:2-in-1 AHB-10A
Totally free air supply/Discharge strain(m³/min/Mpa)1.1/.8
Cost-free air supply/Discharge strain(CFM)39
Motor energy(KW/HP)7.5/ten
No.of compression phaseOne stage
Ambient temperature(°C)-5–+forty five
Cooling modeAir cooling
Discharge temperature(0C)Ambient temperature+fifteen
Lubricant(L)3.7
Noise stage(Db)62±2
Generate techniqueBelt driven
Electrical energy(V/ph/Hz)380/3/50
Commencing techniqueDirect starting
Dimension:L*W*H(mm)1600×730×1550
Weight(kg)380
Air outlet pipe diameter(inch/mm)three/4′ Worm Shaft Splined ‘

Item Details
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About Us
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air-compressor

Choose an Air Compressor for Your Business

There are several factors to consider when choosing an air compressor for your business. One factor to consider is the type of compressor you are looking for, which may include single-stage, low noise, and positive displacement. Hope this article helps you make the right decision. After all, your business success will depend on this device! Let’s take a closer look at these factors. Also, consider what compressor manufacturers say about their products.

Positive displacement

Positive displacement air compressors compress air by drawing in a volume from an inlet and extruding it out of a chamber. This increases the pressure at which the gas can be pumped at rates that cannot be pumped through the outlet at lower pressures at higher mass flow rates. These types of compressors are available in single-acting and double-acting configurations. They are classified by the number of cylinders.
There are two different types of air compressors: reciprocating air compressors and screw compressors. Both are roll machines. Positive displacement air compressors use pistons and cylinders to compress air. The resulting air pressure builds up within the compressor housing, increasing the potential energy of the compressed air. Screw air compressors are the most popular positive displacement air compressors, which can be either single-stage screw-blade air compressors or multi-stage screw-blade oil-immersed screw air compressors.
Positive displacement flowmeters use a rotating measuring chamber to divide the fluid into discrete quantities. The number of times the chamber was refilled and emptied was used to estimate the total flow. However, positive displacement flow meters are prone to leaks, reducing the accuracy of the estimates. If a leak occurs, it can cause false readings and damage the compressor. However, leaks in positive displacement air compressors can reduce pressure.
The most common types of positive displacement air compressors are screw, reciprocating, and vane. Rotary positive displacement air compressors are also available as well as many other air compressors. Positive displacement air compressors are most commonly used in large manufacturing facilities. If you are considering an air compressor for commercial or industrial applications, it is imperative to understand how the components of the unit work. Please read the information below to learn more before deciding which application is best for you.
Positive displacement air compressors use a piston to force air into a chamber, compressing the air in the process. The piston moves in the opposite direction, thereby reducing the volume of the chamber. When the amount of air in the chamber reaches its maximum value, the valve opens, allowing it to escape at higher pressure. Positive displacement air compressors are generally less efficient than centrifugal compressors. However, they are still an excellent choice for a variety of applications.
air-compressor

Single-stage

The discharge pressure of the single-stage air compressor is used to control the operation of the compressor. Properly designed load/unload controls allow the air compressor to operate at its most efficient point while minimizing stress on the main engine bearings. Single-stage air compressors can approach variable speed efficiency with appropriate storage capacity. However, improper storage can cause premature bearing wear on the main unit. If this is the case, a single-stage air compressor may not be ideal.
A single-stage air compressor has only one cylinder, which means one stroke is required to move air from one cylinder to another. Pressure is measured in cubic feet per minute or CFM. Tank size is also important as a large single-stage air compressor may be required to operate multiple air tools. Single-stage air compressors can be used in a variety of applications and can last for years.
For the most common uses, single-stage air compressors are the most practical option. These devices work with most hand tools, from hammers to grinders. Single-stage air compressors are lightweight and easy to move. However, two-stage air compressors provide more CFM, making them a better choice for industrial or commercial use. However, two-stage compressors are not suitable for private use. Therefore, if your main purpose is DIY and craft projects, it is better to choose a single-stage air compressor.
Compared with two-stage air compressors, single-stage screw air compressors are cheaper. They come from a variety of manufacturers and range in power from 3 to 600 horsepower. Single-stage air compressors are a cost-effective solution for a variety of air compressor needs. They offer flexibility and multiple control methods, making them an excellent choice for many different applications. Therefore, when choosing an air compressor for your business, choose the one with the most suitable functions.
Single-stage air compressors are the most affordable and easy-to-use air compressors for small to medium jobs. They also have higher compression ratios. The compression ratio is the ratio of absolute discharge pressure to absolute inlet pressure. When calculating the ratio, it takes into account atmospheric pressure and gauge pressure. The compression ratio pushes the surface area of ​​the rotor, which increases the thrust load.
Single-stage air compressors are smaller and easier to transport than two-stage units. Single-stage air compressors have one air intake, and two-stage air compressors have two air intakes. The difference between single-stage and two-stage air compressors largely depends on the number of times the air is compressed. A single-stage air compressor compresses the air once, while a dual-stage air compressor compresses the same amount of air twice.
air-compressor

low noise

Low noise air compressors are ideal for a variety of applications. While no air compressor is completely silent, some models are much quieter than others. For the Hitachi EC28M portable compressor, the noise level is 59 decibels. The compressor features steel rollers that protect the internal components and give it a sleek, modern look. It also has a one-gallon fuel tank and a half-horsepower drive.
Noise from air compressors can be distracting and reduce productivity. It is important to choose low-noise air compressors to keep employees healthy and happy at work. While noise is an unfortunate aspect of working on the shop floor, reducing it can improve productivity. By reducing distracting noise, employees can focus on their work and communicate more effectively. That means higher quality work and happier clients. If you’re looking for a low-noise air compressor, be sure to read the tips below.
Low noise air compressors are an excellent choice for businesses of all sizes. These powerful tools can run multiple tools simultaneously. The two water tanks are made of rust-resistant aluminum and are stackable. This air compressor is heavier and can handle large jobs with ease. It costs more than other air compressors, but it can handle a lot of work efficiently. CZPT Air Tools air compressors come with a one-year warranty and are highly recommended by contractors.
Noiseless air compressors are generally more expensive than comparable products, but they are worth the extra cost. Noiseless compressors are a good option for businesses that need to avoid disturbing nearby people. For example, you might want to consider a low-noise air compressor for a dental office, which cannot tolerate noise. Fortunately, this problem can be solved by relocating the compressor to a location that is more isolated from your workspace.
One brand of low-noise air compressors offers two models. The CZPT Air Tools 2010A features a large cast aluminum can, regulating pressure gauge, and two universal quick-connects. It produces 68 decibels of noise when it works. It has a large 8-gallon fuel tank capacity and has wheels and handles for easy transport. Its powerful engine produces a low noise level of 68 decibels.
Another popular low noise air compressor is the Makita MAC210Q Quiet Series. This model is capable of producing up to 71.5 decibels of sound, which is the amount of air it produces at 90PSI. The MAC210Q features a durable oil-free pump and weighs just 36 pounds with a handle and wheels. These compressors are easy to move and ideal for indoor work.
China 1 Phase 220230240V 8 Bar~10 Bar 7.5kw tank-mounted 10 hp rotary screw air compressor single phase for Home Workshop     air compressor partsChina 1 Phase 220230240V 8 Bar~10 Bar 7.5kw tank-mounted 10 hp rotary screw air compressor single phase for Home Workshop     air compressor parts
editor by Cx 2023-05-09

China best Industry Equipment Rotary Type Direct Drive 8 Bar 10 Bar 37 Kw 50 HP Screw Air Compressor supplier

Product Description

 

Product Description

Product Name:Direct Driven Energy Saving PM VSD Screw Air Compressor
Power: 11KW 15HP
Pressure: 8bar
Air Flow: 1.7m3/min
Motor: Permanent Magent IP23 motor
Air End: CZPT Brand
Noise: 70±2dBA
Size: 1120*750*980mm
Weight: 290kg

 

Detailed Photos

Product Parameters

Model Pressure Air Flow Power Noise Air Outlet Size Weight Dimensions
GTA-5.5PM 8bar/116psi 0.6m3/min 4kw/5.5hp 63 G 3/4 110 900*600*850
GTA-7.5PM 8bar/116psi 0.85m3/min 5.5kw/7.5hp 68 G 3/4 120 900*600*850
GTA-10PM 8bar/116psi 1.1m3/min 7.5kw/10hp 68 G 3/4 120 900*600*850
GTA-15PM 8bar/116psi 1.8m3/min 11kw/15hp 70 G 1 200 1000*700*1000
GTA-20PM 8bar/116psi 2.3m3/min 15kw/20hp 70 G 1 200 1000*700*1000
GTA-25PM 8bar/116psi 2.9m3/min 18.5kw/25hp 72 G 1 300 1300*790*1150
GTA-30PM 8bar/116psi 3.3m3/min 22kw/30hp 72 G 1 300 1300*790*1150
GTA-40PM 8bar/116psi 4.7m3/min 30kw/40hp 72 G 1 1/2 320 1300*790*1150
GTA-50PM 8bar/116psi 6.2m3/min 37kw/50hp 72 G 1 1/2 460 1400*950*1310
GTA-60PM 8bar/116psi 6.5m3/min 45kw/60hp 72 G1 1/2 600 1400*950*1310

 

 

 

Company Profile

FAQ

Q1: Warranty terms of your machine?
A1: One year warranty for the machine and technical support according to your needs.

Q2: Will you provide some spare parts of the machines?
A2: Yes, of course.

Q3: What about product package?
A3: We pack our products strictly with standard seaworthy case.

Q4: Can you use our brand?
A4: Yes, OEM is available.

Q5: How long will you take to arrange production?
A5: 380V 50HZ we can delivery the goods within 3-15 days. Other voltage or other color we will delivery within 25-30 days.

Q6: How Many Staff Are There In your Factory?
A6: About 100.

Q7: What’s your factory’s production capacity?
A7: About 2000 units per month.


 

After-sales Service: Spare Parts
Warranty: 1 Year
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Installation Type: Stationary Type
Customization:
Available

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air-compressor

what to see in an air compressor

If you need to buy an air compressor, you should know what to look for. The types of air compressors on the market are classified according to their CFM rating, safety devices, and pumps. There are several differences between lubricated and oil-free air compressors that you should know before buying. To better understand the difference between these types of air compressors, read on. This article will guide you through these differences.

Pump

If you are looking for a quality air compressor, you have come to the right place. A good air compressor pump will provide high pressure for anything from tires to boats and more. There are hundreds of different models to choose from, and the great thing about buying one from a Chinese manufacturer is that they have so many options. More importantly, Chinese manufacturers can customize air equipment such as air compressors at low prices.
A good quality air pump won’t break easily, but you’ll be able to use it for years. Choosing a high-quality pump will help you avoid many hassles on the road, such as unplanned downtime and installation costs. Plus, a pump from the same manufacturer as your air compressor is your best bet to ensure optimum performance. Listed below are some tips for finding a quality pump for your air compressor.
The air compressor is an important but unremarkable invention. Without them, our lives would be completely different. Without a pump, we can’t get hot water from central heating, nor can we get heat from the refrigerator. We can’t inflate bicycle tires, and we can’t refuel cars. Pumps are vital to all kinds of machines. So why is it important to choose the right product? The answer may surprise you.
Different types of pumps are used for different applications. Positive displacement pumps move a fixed volume of fluid and direct it to a drain. This design ensures constant flow at a constant speed regardless of discharge pressure. Centrifugal pumps work differently. The impeller accelerates the fluid, converting the input energy into kinetic energy. This type of pump is most commonly used in mines, air conditioning, industrial plants, and flood control.

safety equipment

There are several safety features you should check when using an air compressor. First, check the connection of the air filter to the air. If they come loose, parts may separate and cause injury. Another important safety feature is the shut-off valve. When working near compressed air, the shut-off valve should be within easy reach and visibility. Moving parts and other equipment must be protected with protective covers. Check safety valve and replace damaged parts.
Rupture discs are copper discs located on the air cooler. When the air pressure exceeds a certain limit, it bursts. Fusible plugs contain materials that melt at high temperatures. The compressor should have a lubricating oil pressure alarm and cut off the trip signal. If these two safety devices fail, the compressor should be stopped immediately. The rupture disc should be inspected at least weekly to ensure it does not rupture under pressure.
If the pressure level is too high, and overcurrent protection device cuts power to the motor. It also automatically shuts off the compressor when the hose ruptures or the air volume exceeds a preset level. The device should be installed on the air compressor to prevent accidents. Its job is to protect the operator from harm. If employees do not follow these safety measures, they may cause equipment damage.
To ensure safety when operating the air compressor, safety glasses and gloves should be worn. Pressurized air can cause eye injury, and crash goggles can provide a barrier to prevent this. Additionally, the self-retracting cord prevents trip hazards and reinforces excess cord. You should also keep your hands and body away from the air nozzle. This will prevent you from being sprayed with compressed air.

CFM Rating

An air compressor’s PSI and CFM ratings indicate the pressure and volume it can deliver. PSI stands for pounds per square inch and measures the force and pressure contained in one square inch of air. These two indicators are equally important when choosing an air compressor. If you need a lot of compressed air for a specific application, you will need a higher psi compressor. Likewise, if you are using compressed air in a smaller application, a low cfm compressor will not provide enough power to meet your needs.
When comparing different air compressors, be sure to pay close attention to horsepower and CFM ratings. While compressor power is essential for some tasks, it is not the most important aspect. The CFM rating of an air compressor will determine how big a project it can handle and how long it takes to charge. Make sure you understand the CFM and PSI ratings of your future compressors, as not knowing these important statistics can frustrate you and drive up costs.
In general, it is best to choose an air compressor with a CFM rating higher than the size of the air tool. This will ensure that the air compressor has enough pressure to work multiple tools efficiently at the same time. While smaller CFM ratings may be sufficient for smaller projects, larger tools such as drills require a lot of air. Therefore, the higher the CFM, the larger and more powerful the tool.
Once you understand the CFM of an air compressor, you can start looking for the right tool. You can check the CFM rating of your air compressor online by commenting below. If you’re not sure about the size of your air tool, you can always buy a second air compressor. This is a great way to double the CFM of your air compressor! You’ll have more air to do more work, and your compressor will last longer.
air-compressor

Lack of oil and lubrication

Oil-free air compressors have a smaller footprint and require less maintenance than oil-lubricated air compressors. Although oil-lubricated air compressors are more expensive and heavier than oil-free air compressors, they are also ideal for stationary use. The benefits of oil-free air compressors include greater durability and lower maintenance costs. The advantages and disadvantages of each type are discussed below.
Oil-free air compressors are generally quieter than oil-lubricated air compressors. However, you may still experience some noise while using it. To avoid this, you should choose a quiet intake compressor. However, if you work next to a noisy compressor, you should buy a muffler, an aftermarket filter that reduces compressor noise.
If you want to use the air compressor for a long time, the oil-free model is not the right choice. Its Teflon coating wears off over time, especially at extreme temperatures. Additionally, oil-free air compressors have a large number of moving parts that require regular maintenance, while oil-filled air compressors are great for those who don’t want to invest in extra parts.
Another major difference between oil-free and oil-lubricated air compressors is lubrication. Oil-lubricated air compressors require regular lubrication whereas oil-free air compressors are pre-lubricated. They have fewer parts and are cheaper. Oil-free air compressors are lighter than oil-lubricated air compressors. In addition to being more affordable, oil-free air compressors are more powerful and durable.
While oil-filled air compressors are more efficient and durable, they generate a lot of heat. However, they are also more expensive and require regular oil changes. Furthermore, they are difficult to transport. They also need to be permanently installed. These air compressors are also not portable and require a fixed location. So, consider your needs before deciding which type is best for you. When you’re choosing an air compressor for your business, be sure to shop around.
air-compressor

noise level

If you are wondering what the noise level of an air compressor is, the answer depends on your specific equipment and working environment conditions. Typically, air compressors produce 40 to 90 decibels of noise. Although the lower the decibel level, the quieter the compressor will be. Larger, more powerful air compressors produce higher noise levels than their little brothers. But no matter how big the air compressors are, it’s a good idea to wear hearing protection while working around them.
When purchasing a new air compressor, the noise level of the air compressor should be considered. While this may seem like a small problem, there are actually a lot of variations on these noisy machines. The most common type of air compressor is the reciprocating piston pump. This model uses pistons similar to an engine to rotate inside a chamber. The piston moves quickly and traps air proportional to its size. Single-piston air compressors are generally noisier than twin-piston models, also known as twin cylinders.
But even if you have the proper equipment to protect your hearing, it’s still important to know the noise level of an air compressor. Even if the noise is not immediately dangerous, it can still cause temporary or permanent hearing loss. This condition is called noise-induced hearing loss, and an air compressor with a sound level of 80 or higher can cause permanent hearing damage. You can avoid potential damage to your hearing and prevent accidents by simply paying attention to the noise level of your air compressor.
Air compressors are inherently noisy, but if you take steps to reduce their noise levels, you can minimize disruption to neighbors and co-workers. For example, installing a sound enclosure in your work area can prevent your air compressor from making as much noise as before. Depending on your workspace, you can also try installing a long air hose, which will reduce sound levels by up to 25%.
China best Industry Equipment Rotary Type Direct Drive 8 Bar 10 Bar 37 Kw 50 HP Screw Air Compressor   supplier China best Industry Equipment Rotary Type Direct Drive 8 Bar 10 Bar 37 Kw 50 HP Screw Air Compressor   supplier
editor by CX 2023-04-18

China wholesaler 75kw 100HP 450cfm Oil Injected Rotary Screw Air Compressor with Inverter 7 8 10 13 Bar 50Hz 60Hz with Great quality

Merchandise Description

———–Requirements————-

 

———–Business PROFILE——

——-———-–OTHER Merchandise———–——–

———–—-FAQ———–———-

Q1: Are you a factory or trade company? 

A1: We are an integration of business and trade.The manufacturing facility and global trade division are in the exact same location.

Q2 : What the actual deal with of your manufacturing facility? 
A2: Xihu (West Lake) Dis. Industrial Park, HangZhou City, ZheJiang Province,China.

Q3: Warranty terms of your machine? 
A3: 18 months for the complete device, 2 a long time for air end, complex help for lifestyle.

This autumn: How lengthy is your shipping and delivery?
A4: 25-thirty times following obtaining your 30% down payment.

Q5: Phrases of payment?
A5: T/T and L/C at sight.

Q6: What is the MOQ?
A6: 1 Laptop.

Q7: Can you acknowledge OEM orders?
A7: Yes, with a professional design team, OEM orders are highly welcome.

Q8: Can you settle for color customise?
A8: Sure we can.

Q9: Will you provide some spare elements of the air compressor? 
A9: Yes, of program.

Q10 : What’s your factory’s creation potential?
A10: About one thousand models per thirty day period.Thank you.

———After Provider—————–

 

what to see in an air compressor

If you want to buy an air compressor, you should know what to search for. The kinds of air compressors on the marketplace are labeled in accordance to their CFM score, basic safety products, and pumps. There are a number of variations between lubricated and oil-totally free air compressors that you ought to know before getting. To better understand the variation among these kinds of air compressors, read on. This report will manual you by way of these variances.

Pump

If you are seeking for a good quality air compressor, you have occur to the correct location. A excellent air compressor pump will supply substantial stress for anything from tires to boats and a lot more. There are hundreds of distinct versions to select from, and the great point about buying one from a Chinese maker is that they have so many possibilities. Much more importantly, Chinese manufacturers can customise air gear this kind of as air compressors at low rates.
A excellent high quality air pump will not break simply, but you’ll be in a position to use it for a long time. Deciding on a high-top quality pump will assist you stay away from numerous hassles on the highway, these kinds of as unplanned downtime and set up costs. In addition, a pump from the same producer as your air compressor is your greatest bet to ensure optimum efficiency. Listed beneath are some suggestions for finding a top quality pump for your air compressor.
The air compressor is an crucial but unremarkable creation. Without them, our life would be totally distinct. Without having a pump, we can’t get sizzling water from central heating, nor can we get heat from the refrigerator. We are unable to inflate bicycle tires, and we cannot refuel autos. Pumps are crucial to all sorts of machines. So why is it essential to choose the correct product? The solution could surprise you.
Different varieties of pumps are employed for different programs. Good displacement pumps transfer a set quantity of fluid and immediate it to a drain. This layout assures continual stream at a continuous speed regardless of discharge pressure. Centrifugal pumps function in different ways. The impeller accelerates the fluid, changing the enter vitality into kinetic strength. This kind of pump is most commonly utilized in mines, air conditioning, industrial crops, and flood manage.
air-compressor

security products

There are several protection functions you must verify when using an air compressor. 1st, examine the relationship of the air filter to the air. If they come loose, elements may different and cause injuries. One more essential basic safety function is the shut-off valve. When functioning in close proximity to compressed air, the shut-off valve should be inside of straightforward reach and visibility. Moving components and other equipment have to be protected with protective handles. Check basic safety valve and replace destroyed elements.
Rupture discs are copper discs positioned on the air cooler. When the air force exceeds a particular restrict, it bursts. Fusible plugs have components that melt at large temperatures. The compressor should have a lubricating oil stress alarm and lower off the vacation signal. If these two safety gadgets fall short, the compressor should be stopped right away. The rupture disc should be inspected at minimum weekly to make certain it does not rupture below strain.
If the strain degree is as well large, and overcurrent defense unit cuts electricity to the motor. It also automatically shuts off the compressor when the hose ruptures or the air quantity exceeds a preset degree. The system ought to be mounted on the air compressor to stop mishaps. Its work is to shield the operator from damage. If employees do not adhere to these security measures, they could lead to products injury.
To make sure safety when functioning the air compressor, basic safety eyeglasses and gloves ought to be worn. Pressurized air can lead to eye damage, and crash goggles can give a barrier to avoid this. In addition, the self-retracting wire prevents excursion dangers and reinforces extra twine. You must also preserve your arms and body absent from the air nozzle. This will stop you from getting sprayed with compressed air.

CFM Rating

An air compressor’s PSI and CFM ratings reveal the strain and quantity it can produce. PSI stands for lbs . for every sq. inch and measures the drive and stress contained in 1 sq. inch of air. These two indicators are similarly crucial when choosing an air compressor. If you need to have a lot of compressed air for a certain application, you will want a larger psi compressor. Also, if you are making use of compressed air in a scaled-down application, a low cfm compressor will not offer sufficient power to fulfill your demands.
When evaluating diverse air compressors, be certain to pay out near interest to horsepower and CFM ratings. While compressor electricity is crucial for some duties, it is not the most important facet. The CFM ranking of an air compressor will determine how huge a undertaking it can handle and how long it will take to demand. Make certain you understand the CFM and PSI rankings of your long term compressors, as not being aware of these essential statistics can frustrate you and drive up expenses.
In general, it is ideal to choose an air compressor with a CFM ranking increased than the size of the air instrument. This will ensure that the air compressor has sufficient force to function numerous resources successfully at the same time. Even though smaller sized CFM scores may be adequate for smaller sized assignments, bigger instruments such as drills need a whole lot of air. As a result, the higher the CFM, the larger and much more effective the device.
As soon as you understand the CFM of an air compressor, you can begin looking for the correct instrument. You can verify the CFM ranking of your air compressor on the web by commenting underneath. If you might be not positive about the measurement of your air device, you can often acquire a 2nd air compressor. This is a fantastic way to double the CFM of your air compressor! You will have much more air to do a lot more perform, and your compressor will last for a longer time.
air-compressor

Lack of oil and lubrication

Oil-free air compressors have a smaller sized footprint and need significantly less maintenance than oil-lubricated air compressors. Despite the fact that oil-lubricated air compressors are much more expensive and heavier than oil-free of charge air compressors, they are also ideal for stationary use. The advantages of oil-free air compressors include higher toughness and decrease maintenance costs. The positive aspects and disadvantages of each and every type are discussed below.
Oil-totally free air compressors are usually quieter than oil-lubricated air compressors. However, you may possibly even now experience some sounds although employing it. To stay away from this, you must select a tranquil ingestion compressor. Even so, if you work subsequent to a noisy compressor, you need to acquire a muffler, an aftermarket filter that decreases compressor noise.
If you want to use the air compressor for a long time, the oil-totally free design is not the correct choice. Its Teflon coating wears off more than time, specially at intense temperatures. Additionally, oil-cost-free air compressors have a huge quantity of shifting parts that need normal servicing, while oil-loaded air compressors are excellent for individuals who really do not want to invest in additional components.
An additional major big difference among oil-cost-free and oil-lubricated air compressors is lubrication. Oil-lubricated air compressors need typical lubrication while oil-totally free air compressors are pre-lubricated. They have less elements and are cheaper. Oil-free of charge air compressors are lighter than oil-lubricated air compressors. In addition to currently being a lot more affordable, oil-totally free air compressors are a lot more effective and tough.
Whilst oil-crammed air compressors are more effective and resilient, they produce a good deal of heat. Nevertheless, they are also far more pricey and call for regular oil changes. Additionally, they are tough to transport. They also require to be completely installed. These air compressors are also not transportable and demand a fixed spot. So, contemplate your demands before deciding which kind is very best for you. When you are choosing an air compressor for your business, be certain to store around.
air-compressor

noise stage

If you are questioning what the sounds level of an air compressor is, the reply depends on your certain equipment and operating environment problems. Typically, air compressors generate 40 to 90 decibels of sounds. Even though the reduced the decibel degree, the quieter the compressor will be. Bigger, far more potent air compressors create greater noise levels than their small brothers. But no matter how big the air compressors are, it is a very good concept to wear listening to security whilst working all around them.
When getting a new air compressor, the noise stage of the air compressor must be regarded. Although this may possibly seem like a little difficulty, there are actually a whole lot of variants on these noisy equipment. The most widespread kind of air compressor is the reciprocating piston pump. This model utilizes pistons equivalent to an motor to rotate inside of a chamber. The piston moves swiftly and traps air proportional to its measurement. One-piston air compressors are generally noisier than twin-piston models, also known as twin cylinders.
But even if you have the suitable tools to shield your hearing, it’s even now critical to know the sound level of an air compressor. Even if the sounds is not quickly hazardous, it can nonetheless result in temporary or long lasting hearing reduction. This issue is named sound-induced listening to reduction, and an air compressor with a sound degree of 80 or larger can result in long term hearing harm. You can stay away from prospective hurt to your hearing and avert incidents by merely paying interest to the sounds stage of your air compressor.
Air compressors are inherently noisy, but if you consider measures to reduce their noise amounts, you can decrease disruption to neighbors and co-personnel. For example, installing a seem enclosure in your work region can avert your air compressor from creating as much noise as just before. Dependent on your workspace, you can also try putting in a lengthy air hose, which will decrease audio levels by up to 25%.
China wholesaler 75kw 100HP 450cfm Oil Injected Rotary Screw Air Compressor with Inverter 7 8 ten 13 Bar 50Hz 60Hz     with Excellent top qualityChina wholesaler 75kw 100HP 450cfm Oil Injected Rotary Screw Air Compressor with Inverter 7 8 ten 13 Bar 50Hz 60Hz     with Great good quality