Tag Archives: screw air compressor supplier

China supplier Gardner Denver Gd Oil Lubricated Screw Air Compressor Variable Speed VSD 30kw FM30RS FM 30kw FM30RS-7A FM30RS-8A FM30RS-10A FM30RS-13A air compressor portable

Product Description

Oil Lubricated Screw Compressors FM07RS-FM75RS Series Variable Speed VSD

Efficient Compact Reliable

FM Series small air compressors are designed to provide you with excellent quality main engines imported from Germany, with simple and convenient after-sales maintenance design.

Design philosophy focused on details

• Hard pipe connection for both hard and soft pipelines
• Materials such as Teflon increase the stability of the overall unit running

Efficient, stable, customizable according to specific needs

• FM07-22: TEFC, with standard IP55 rating
• FM30-75: ODP, with IP23 / IP54 ratings optional
• (IP 54 400V / 50Hz optional)

Filtering system

Efficient, high-quality, micro-oil air quality
• With nanometer filter materials, filter accuracy of up to 1μ
• Improve air quality, oil content less than 2 ppm
• New pre-filtration system reduces the air filter load
• Increase the operating life of the overall unit under complex conditions

Compact design, imported main engine, high efficiency and energy saving
• The direct drive by air end and motor of FM30-75 realizes efficient conversion of high CHINAMFG torque that protects the air end from the impact of external forces, thereby enabling more efficient and more stable operation.
• The whole series can reach national Level I, or Level II energy efficiency.

Technical Data for FM07RS-FM75RS Series Variable Speed VSD

Model Number Pressure(Bar) Power(kW) FAD1 (m3/min) Noise Level² dB(A) Drive Weight (kG) Dimensions              L x W x H (mm)
FM07RS-7A 7 7.5 0.45-1.13 70 Belt 225 667×630×1050
FM07RS-8A 8 7.5 0.46-0.98 70 Belt 225 667×630×1050
FM07RS-10A 10 7.5 0.43-0.95 70 Belt 225 667×630×1050
FM07RS-13A 13 7.5 0.45-0.77 70 Belt 225 667×630×1050
FM11RS-7A 7 11 0.58-1.53 70 Belt 234 667×630×1050
FM11RS-8A 8 11 0.52-1.41 70 Belt 234 667×630×1050
FM11RS-10A 10 11 0.51-1.39 70 Belt 234 667×630×1050
FM11RS-13A 13 11 0.49-1.07 70 Belt 234 667×630×1050
FM15RS-7A 7 15 1.06-2.64 73 Belt 360 787×698×1202
FM15RS-8A 8 15 1.01-2.46 73 Belt 360 787×698×1202
FM15RS-10A 10 15 0.95-2.2 73 Belt 360 787×698×1202
FM15RS-13A 13 15 0.89-1.73 73 Belt 360 787×698×1202
FM18RS-7A 7 18.5 1.37-3.15 74 Belt 380 787×698×1202
FM18RS-8A 8 18.5 1.35-2.96 74 Belt 380 787×698×1202
FM18RS-10A 10 18.5 1.29-2.66 74 Belt 380 787×698×1202
FM18RS-13A 13 18.5 1.31-2.25 74 Belt 380 787×698×1202
FM22RS-7A 7 22 1.35-3.49 74 Belt 395 787×698×1202
FM22RS-8A 8 22 1.05-3.23 74 Belt 395 787×698×1202
FM22RS-10A 10 22 0.94-3.05 74 Belt 395 787×698×1202
FM22RS-13A 13 22 0.98-2.59 74 Belt 395 787×698×1202
FM30RS-7A 7 30 1.88-5.26 72 Direct 750 1554×894×1505
FM30RS-8A 8 30 1.85-5.23 72 Direct 750 1554×894×1505
FM30RS-10A 10 30 1.81-4.52 72 Direct 750 1554×894×1505
FM37RS-7A 7 37 1.84-6.24 72 Direct 830 1554×894×1505
FM37RS-8A 8 37 1.84-6.21 72 Direct 830 1554×894×1505
FM37RS-10A 10 37 1.75-5.01 72 Direct 830 1554×894×1505
FM45RS-7A 7 45 2.83-7.57 76 Direct 900 1554×894×1505
FM45RS-8A 8 45 3.73-7.51 76 Direct 900 1554×894×1505
FM45RS-10A 10 45 2.25-6.12 76 Direct 900 1554×894×1505
FM55RS-7A 7 55 2.44-10.34 75 Direct 1170 2004×1179×1605
FM55RS-8A 8 55 2.37-10.07 75 Direct 1170 2004×1179×1605
FM55RS-10A 10 55 2.24-9.14 75 Direct 1170 2004×1179×1605
FM75RS-7A 7 75 1.82-13.5 78 Direct 1220 2004×1179×1605
FM75RS-8A 8 75 1.76-12.9 78 Direct 1220 2004×1179×1605
FM75RS-10A 10 75 1.65-11.91 78 Direct 1220 2004×1179×1605


Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Horizontal
Structure Type: Closed Type
Installation Type: Stationary Type


air compressor

Can air compressors be used for gas compression and storage?

Yes, air compressors can be used for gas compression and storage. While air compressors are commonly used to compress and store air, they can also be utilized for compressing and storing other gases, depending on the specific application requirements. Here’s how air compressors can be used for gas compression and storage:

Gas Compression:

Air compressors can compress various gases by utilizing the same principles applied to compressing air. The compressor takes in the gas at a certain pressure, and through the compression process, it increases the pressure and reduces the volume of the gas. This compressed gas can then be used for different purposes, such as in industrial processes, gas pipelines, or storage systems.

Gas Storage:

Air compressors can also be used for gas storage by compressing the gas into storage vessels or tanks. The compressed gas is stored at high pressure within these vessels until it is needed for use. Gas storage is commonly employed in industries where a continuous and reliable supply of gas is required, such as in natural gas storage facilities or for storing compressed natural gas (CNG) used as a fuel for vehicles.

Gas Types:

While air compressors are primarily designed for compressing air, they can be adapted to handle various gases, including but not limited to:

  • Nitrogen
  • Oxygen
  • Hydrogen
  • Carbon dioxide
  • Natural gas
  • Refrigerant gases

It’s important to note that when using air compressors for gas compression and storage, certain considerations must be taken into account. These include compatibility of the compressor materials with the specific gas being compressed, ensuring proper sealing to prevent gas leaks, and adhering to safety regulations and guidelines for handling and storing compressed gases.

By leveraging the capabilities of air compressors, it is possible to compress and store gases efficiently, providing a reliable supply for various industrial, commercial, and residential applications.

air compressor

How do you maintain proper air quality in compressed air systems?

Maintaining proper air quality in compressed air systems is essential to ensure the reliability and performance of pneumatic equipment and the safety of downstream processes. Here are some key steps to maintain air quality:

1. Air Filtration:

Install appropriate air filters in the compressed air system to remove contaminants such as dust, dirt, oil, and water. Filters are typically placed at various points in the system, including the compressor intake, aftercoolers, and before point-of-use applications. Regularly inspect and replace filters to ensure their effectiveness.

2. Moisture Control:

Excessive moisture in compressed air can cause corrosion, equipment malfunction, and compromised product quality. Use moisture separators or dryers to remove moisture from the compressed air. Refrigerated dryers, desiccant dryers, or membrane dryers are commonly employed to achieve the desired level of dryness.

3. Oil Removal:

If the compressed air system utilizes oil-lubricated compressors, it is essential to incorporate proper oil removal mechanisms. This can include coalescing filters or adsorption filters to remove oil aerosols and vapors from the air. Oil-free compressors eliminate the need for oil removal.

4. Regular Maintenance:

Perform routine maintenance on the compressed air system, including inspections, cleaning, and servicing of equipment. This helps identify and address any potential issues that may affect air quality, such as leaks, clogged filters, or malfunctioning dryers.

5. Air Receiver Tank Maintenance:

Regularly drain and clean the air receiver tank to remove accumulated contaminants, including water and debris. Proper maintenance of the tank helps prevent contamination from being introduced into the compressed air system.

6. Air Quality Testing:

Periodically test the quality of the compressed air using appropriate instruments and methods. This can include measuring particle concentration, oil content, dew point, and microbial contamination. Air quality testing provides valuable information about the effectiveness of the filtration and drying processes and helps ensure compliance with industry standards.

7. Education and Training:

Educate personnel working with compressed air systems about the importance of air quality and the proper procedures for maintaining it. Provide training on the use and maintenance of filtration and drying equipment, as well as awareness of potential contaminants and their impact on downstream processes.

8. Documentation and Record-Keeping:

Maintain accurate records of maintenance activities, including filter replacements, drying system performance, and air quality test results. Documentation helps track the system’s performance over time and provides a reference for troubleshooting or compliance purposes.

By implementing these practices, compressed air systems can maintain proper air quality, minimize equipment damage, and ensure the integrity of processes that rely on compressed air.

air compressor

What is the role of air compressor tanks?

Air compressor tanks, also known as receiver tanks or air receivers, play a crucial role in the operation of air compressor systems. They serve several important functions:

1. Storage and Pressure Regulation: The primary role of an air compressor tank is to store compressed air. As the compressor pumps air into the tank, it accumulates and pressurizes the air. The tank acts as a reservoir, allowing the compressor to operate intermittently while providing a steady supply of compressed air during periods of high demand. It helps regulate and stabilize the pressure in the system, reducing pressure fluctuations and ensuring a consistent supply of air.

2. Condensation and Moisture Separation: Compressed air contains moisture, which can condense as the air cools down inside the tank. Air compressor tanks are equipped with moisture separators or drain valves to collect and remove this condensed moisture. The tank provides a space for the moisture to settle, allowing it to be drained out periodically. This helps prevent moisture-related issues such as corrosion, contamination, and damage to downstream equipment.

3. Heat Dissipation: During compression, air temperature increases. The air compressor tank provides a larger surface area for the compressed air to cool down and dissipate heat. This helps prevent overheating of the compressor and ensures efficient operation.

4. Pressure Surge Mitigation: Air compressor tanks act as buffers to absorb pressure surges or pulsations that may occur during compressor operation. These surges can be caused by variations in demand, sudden changes in airflow, or the cyclic nature of reciprocating compressors. The tank absorbs these pressure fluctuations, reducing stress on the compressor and other components, and providing a more stable and consistent supply of compressed air.

5. Energy Efficiency: Air compressor tanks contribute to energy efficiency by reducing the need for the compressor to run continuously. The compressor can fill the tank during periods of low demand and then shut off when the desired pressure is reached. This allows the compressor to operate in shorter cycles, reducing energy consumption and minimizing wear and tear on the compressor motor.

6. Emergency Air Supply: In the event of a power outage or compressor failure, the stored compressed air in the tank can serve as an emergency air supply. This can provide temporary air for critical operations, allowing time for maintenance or repairs to be carried out without disrupting the overall workflow.

Overall, air compressor tanks provide storage, pressure regulation, moisture separation, heat dissipation, pressure surge mitigation, energy efficiency, and emergency backup capabilities. They are vital components that enhance the performance, reliability, and longevity of air compressor systems in various industrial, commercial, and personal applications.

China supplier Gardner Denver Gd Oil Lubricated Screw Air Compressor Variable Speed VSD 30kw FM30RS FM 30kw FM30RS-7A FM30RS-8A FM30RS-10A FM30RS-13A   air compressor portableChina supplier Gardner Denver Gd Oil Lubricated Screw Air Compressor Variable Speed VSD 30kw FM30RS FM 30kw FM30RS-7A FM30RS-8A FM30RS-10A FM30RS-13A   air compressor portable
editor by CX 2023-10-23

China supplier Hf32/10 (K) Diesel Screw Air Compressor for Construction mini air compressor

Product Description

Product Description


Diesel mobile screw air compressors are widely used in highway, railway, mining, water conservancy, shipbuilding, urban construction, energy, military and other industries.


* Main engine: large-diameter rotor design, the main engine and the diesel engine are directly connected through a highly elastic coupling, and there is no speed-increasing gear in the middle between them engine. The main engine rotates at the same speed as the diesel engine, with higher efficiency, better reliability and longer life.

* Diesel engine: Cummins, CHINAMFG and other famous domestic and foreign diesel engines are selected, which meet the national II emission requirements. With strong power, low fuel consumption, and nationwide after-sales service system, users can get rapid and comprehensive services.

* The air volume control system is simple and reliable. According to the size of the air volume, the air intake volume is automatically adjusted from 0 to 100%, and the diesel throttle is automatically adjusted at the same time, which greatly saves diesel oil.

* The microcomputer intelligently monitors air compressor exhaust pressure, exhaust temperature, diesel engine speed, oil pressure, water temperature, fuel tank level and other operating parameters.

* Multi-stage air filter, suitable for dusty working environment. Multi-stage fuel filter, suitable for the current status of domestic oil quality. Oversized oil-water cooler, suitable for high temperature and plateau environments.

* Spacious maintenance and repair door, all parts needed to be maintained are within easy reach. The maintenance of air filters, oil filters, fuel tanks, batteries and oil coolers is easy and convenient, reducing downtime.

* Easy to move, it can still move flexibly under the harsh terrain conditions. Each compressor is equipped with lifting rings for safe and convenient lifting and transportation.

Technical Data




Air displacement



Air pressure



Engine model

Yuchai YC6M395L-K20













Working Site

Company Introduction

Hanfa Group established in 1998 is a key enterprise in the industry of geological exploration and water well field, with the ability to research,manufacture and market. Now, the Group pursues high standard manufacturing and qualified products. It has more than 20 species such as water well drilling rig, core drilling rig, engineering drilling rig, DTH drilling rig, horizontaldirectional drilling rig, etc. These machines are mainly used in geological prospecting, exploration of railway and highway engineering, mining, SPT, water well, geothermal well etc. Some of them won the Scientific and Technical Advance Prize or the National Scientific Research Achievement Prize. All the products have passed the quality system certification of ISO9001:2000 and are national inspection-free products.

1. More than 20 years of experience 

The factory is located in ZheJiang Province, China. We are very welcome to visit our factory. If
you need it, we will arrange a pick-up.
2.Top production team
The transportation and packaging will be packaged in international standards. If you have special packaging requirements, we will give you the most suitable solution.
3.Our Service
– New machine provides technical trair.
– Once anything goes wrong with the machine by normal using, our technical person must appear at the first time no matter where you are.
– When the machine should be maintained, you will receive the reminding from us.
– According to different geological conditions, we will recommend different construction plans for you
– Remind you which are wearing parts, so you can prepare enough.
– 24 hours respond to your quality problem.


1, Are you trading company or manufacturer?

We are professional manufacturer, and our factory mainly produce water well drilling rig, core drilling rig, DTH drilling rig, piling rig, etc. Our products have been exported to more than 50 countries of Asia, South America, Africa, and get a good reputation in the world.

2, Are your products qualified?
Yes, our products all have gained ISO certificate,and we have specialized quality inspection department for checking every machine before leaving our factory.

3, How about your machine quality?
All of our machines hold the ISO, QC and TUV certificate, and each set of machine must pass a great number of strict testing in order to offer the best quality to our customers.

4, Do you have after service?
Yes, we have special service team which will offer you professional guidance. If you need, we can send our engineer to your worksite and provid the training for your staff.

5, What about the qaulity warranty?
We offer one-year quality warranty for machines’ main body.

6, How long can you deliver the machine?
Generally, we can deliver the machine in 7 days.

Our Customers


Lubrication Style: Lubricated
Cooling System: Water Cooling
Power Source: Diesel Engine
Structure Type: Closed Type
Installation Type: Movable Type
Type: Twin-Screw Compressor

air compressor

What are the advantages of using rotary vane compressors?

Rotary vane compressors offer several advantages that make them a popular choice for various applications. These compressors are widely used in industries where a reliable and efficient source of compressed air is required. Here are the advantages of using rotary vane compressors:

1. Compact and Lightweight:

Rotary vane compressors are typically compact and lightweight compared to other types of compressors. Their compact design makes them suitable for installations where space is limited, such as in small workshops or mobile applications. The lightweight nature of these compressors allows for easy transportation and maneuverability.

2. High Efficiency:

Rotary vane compressors are known for their high efficiency. The design of the vanes and the compression chamber allows for smooth and continuous compression, resulting in minimal energy losses. This efficiency translates into lower energy consumption and reduced operating costs over time.

3. Quiet Operation:

Rotary vane compressors operate with relatively low noise levels. The design of the compressor, including the use of vibration damping materials and sound insulation, helps to minimize noise and vibrations during operation. This makes rotary vane compressors suitable for applications where noise reduction is important, such as in indoor environments or noise-sensitive areas.

4. Oil Lubrication:

Many rotary vane compressors utilize oil lubrication, which provides several benefits. The oil lubrication helps to reduce wear and friction between the moving parts, resulting in extended compressor life and improved reliability. It also contributes to better sealing and improved efficiency by minimizing internal leakage.

5. Versatile Applications:

Rotary vane compressors are versatile and can be used in a wide range of applications. They are suitable for both industrial and commercial applications, including automotive workshops, small manufacturing facilities, dental offices, laboratories, and more. They can handle various compressed air requirements, from light-duty tasks to more demanding applications.

6. Easy Maintenance:

Maintenance of rotary vane compressors is relatively straightforward. Routine maintenance tasks typically include oil changes, filter replacements, and periodic inspection of vanes and seals. The simplicity of the design and the availability of replacement parts make maintenance and repairs easier and more cost-effective.

These advantages make rotary vane compressors an attractive choice for many applications, providing reliable and efficient compressed air solutions.

air compressor

What is the energy efficiency of modern air compressors?

The energy efficiency of modern air compressors has significantly improved due to advancements in technology and design. Here’s an in-depth look at the energy efficiency features and factors that contribute to the efficiency of modern air compressors:

Variable Speed Drive (VSD) Technology:

Many modern air compressors utilize Variable Speed Drive (VSD) technology, also known as Variable Frequency Drive (VFD). This technology allows the compressor motor to adjust its speed according to the compressed air demand. By matching the motor speed to the required airflow, VSD compressors can avoid excessive energy consumption during periods of low demand, resulting in significant energy savings compared to fixed-speed compressors.

Air Leakage Reduction:

Air leakage is a common issue in compressed air systems and can lead to substantial energy waste. Modern air compressors often feature improved sealing and advanced control systems to minimize air leaks. By reducing air leakage, the compressor can maintain optimal pressure levels more efficiently, resulting in energy savings.

Efficient Motor Design:

The motor of an air compressor plays a crucial role in its energy efficiency. Modern compressors incorporate high-efficiency electric motors that meet or exceed established energy efficiency standards. These motors are designed to minimize energy losses and operate more efficiently, reducing overall power consumption.

Optimized Control Systems:

Advanced control systems are integrated into modern air compressors to optimize their performance and energy consumption. These control systems monitor various parameters, such as air pressure, temperature, and airflow, and adjust compressor operation accordingly. By precisely controlling the compressor’s output to match the demand, these systems ensure efficient and energy-saving operation.

Air Storage and Distribution:

Efficient air storage and distribution systems are essential for minimizing energy losses in compressed air systems. Modern air compressors often include properly sized and insulated air storage tanks and well-designed piping systems that reduce pressure drops and minimize heat transfer. These measures help to maintain a consistent and efficient supply of compressed air throughout the system, reducing energy waste.

Energy Management and Monitoring:

Some modern air compressors feature energy management and monitoring systems that provide real-time data on energy consumption and performance. These systems allow operators to identify energy inefficiencies, optimize compressor settings, and implement energy-saving practices.

It’s important to note that the energy efficiency of an air compressor also depends on factors such as the specific model, size, and application. Manufacturers often provide energy efficiency ratings or specifications for their compressors, which can help in comparing different models and selecting the most efficient option for a particular application.

Overall, modern air compressors incorporate various energy-saving technologies and design elements to enhance their efficiency. Investing in an energy-efficient air compressor not only reduces operational costs but also contributes to sustainability efforts by minimizing energy consumption and reducing carbon emissions.

air compressor

What is the difference between a piston and rotary screw compressor?

Piston compressors and rotary screw compressors are two common types of air compressors with distinct differences in their design and operation. Here’s a detailed explanation of the differences between these two compressor types:

1. Operating Principle:

  • Piston Compressors: Piston compressors, also known as reciprocating compressors, use one or more pistons driven by a crankshaft to compress air. The piston moves up and down within a cylinder, creating a vacuum during the intake stroke and compressing the air during the compression stroke.
  • Rotary Screw Compressors: Rotary screw compressors utilize two intermeshing screws (rotors) to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads.

2. Compression Method:

  • Piston Compressors: Piston compressors achieve compression through a positive displacement process. The air is drawn into the cylinder and compressed as the piston moves back and forth. The compression is intermittent, occurring in discrete cycles.
  • Rotary Screw Compressors: Rotary screw compressors also employ a positive displacement method. The compression is continuous as the rotating screws create a continuous flow of air and compress it gradually as it moves along the screw threads.

3. Efficiency:

  • Piston Compressors: Piston compressors are known for their high efficiency at lower flow rates and higher pressures. They are well-suited for applications that require intermittent or variable air demand.
  • Rotary Screw Compressors: Rotary screw compressors are highly efficient for continuous operation and are designed to handle higher flow rates. They are often used in applications with a constant or steady air demand.

4. Noise Level:

  • Piston Compressors: Piston compressors tend to generate more noise during operation due to the reciprocating motion of the pistons and valves.
  • Rotary Screw Compressors: Rotary screw compressors are generally quieter in operation compared to piston compressors. The smooth rotation of the screws contributes to reduced noise levels.

5. Maintenance:

  • Piston Compressors: Piston compressors typically require more frequent maintenance due to the higher number of moving parts, such as pistons, valves, and rings.
  • Rotary Screw Compressors: Rotary screw compressors have fewer moving parts, resulting in lower maintenance requirements. They often have longer service intervals and can operate continuously for extended periods without significant maintenance.

6. Size and Portability:

  • Piston Compressors: Piston compressors are available in both smaller portable models and larger stationary units. Portable piston compressors are commonly used in construction, automotive, and DIY applications.
  • Rotary Screw Compressors: Rotary screw compressors are typically larger and more suitable for stationary installations in industrial and commercial settings. They are less commonly used in portable applications.

These are some of the key differences between piston compressors and rotary screw compressors. The choice between the two depends on factors such as required flow rate, pressure, duty cycle, efficiency, noise level, maintenance needs, and specific application requirements.

China supplier Hf32/10 (K) Diesel Screw Air Compressor for Construction   mini air compressorChina supplier Hf32/10 (K) Diesel Screw Air Compressor for Construction   mini air compressor
editor by CX 2023-10-20