Product Description
Product Description
Double stage PM VSD Electric Rotary Industrial Screw Type Two Stage Air Compressor For Sale
Permanent magnet variable frequency 2 stage screw air compressor:
1. Constant pressure control: It can realize high-precision constant pressure control with a pressure fluctuation range of 0.01 MPa;
2. Variable frequency soft start: Eliminate the CHINAMFG current when starting, avoid grid impact, avoid current impact through step-by-step speed adjustment, and improve flexibility
3. Prevent no-load: The compressor is no-load during operation, reducing ineffective energy consumption;
Permanent magnet motors use high-efficiency rare earth magnets, no loss of magnetism at 180°C, and long service life; energy saving is about 6% to 7% compared with ordinary frequency conversion motors;
It can exert the highest efficiency in a wider range and make the air compressor more energy-saving.
Technical Parameters
| Two-stage PM VSD Screw Air Compressor | |||||||||
| Model | Air Delivery (m3/min) | Power (kW) |
Noise (Db) |
Outlet diameter |
Dimension (mm) | Weight (Kg) |
|||
| 7bar | 8bar | 10bar | 13 bar | L * W * H | |||||
| RK30APMII | 1.4-4.5 | 1.3-4.2 | 1.1-3.5 | 0.8-2.7 | 22 | 68 | G11/2 | 1350x850x1110 | 600 |
| RK40APMII | 1.8-6.0 | 1.7-5.9 | 1.4-4.7 | 1.2-4.0 | 30 | 68 | G11/2 | 1200x1000x1350 | 700 |
| RK50APMII | 2.3-7.5 | 2.1-6.9 | 1.8-6.0 | 1.6-5.4 | 37 | 68 | G11/2 | 1500x1000x1350 | 750 |
| RK60APMII | 3.2-10.5 | 3.0-9.9 | 2.3-7.8 | 2.0-6.8 | 45 | 72 | G2 | 2100x1300x1650 | 1250 |
| RK75APMII | 4.1-13.6 | 3.8-12.5 | 3.0-10.1 | 2.3-7.5 | 55 | 76 | G2 | 2100x1300x1650 | 1300 |
| RK100APMII | 4.8-16.0 | 4.7-15.5 | 3.8-12.8 | 3.1-10.2 | 75 | 76 | G2 | 2100x1300x1650 | 1350 |
| RK125APMII | 6.2-20.7 | 5.9-19.5 | 4.8-16.2 | 4.2-14.0 | 90 | 76 | DN80 | 2500x1650x1900 | 2700 |
| RK150APMII | 7.4-24.8 | 7.2-24.0 | 6.1-20.2 | 4.8-16.0 | 110 | 76 | DN80 | 2500x1650x1900 | 2800 |
| RK180APMII | 8.7-29.0 | 8.4-28.0 | 7.1-23.7 | 5.7-19.0 | 132 | 78 | DN80 | 2500x1650x1900 | 3000 |
| RK220APMII | 10.2-34.0 | 9.8-32.5 | 8.4-28.0 | 6.9-23.0 | 160 | 78 | DN80 | 3000x1900x1950 | 4300 |
| RK250APMII | 11.7-39.0 | 10.8-36.0 | 9.6-32.0 | 8.3-27.5 | 185 | 78 | DN80 | 3000x1900x1950 | 4400 |
| RK275APMII | 13.1-43.5 | 12.3-41.0 | 10.7-35.5 | 9.5-31.5 | 200 | 78 | DN100 | 3600x2200x2200 | 5000 |
| RK300APMII | 15.5-51.5 | 14.5-48.3 | 11.6-38.5 | 10.7-35.5 | 220 | 82 | DN100 | 3600x2200x2200 | 5500 |
| RK350APMII | 16.2-54.0 | 15.3-51.0 | 13.5-45.0 | 11.4-38.0 | 250 | 82 | DN100 | 3600x2200x2200 | 6000 |
| RK380APMII | 18.0-60.0 | 17.1-57.0 | 15.0-50.0 | 12.9-43.0 | 280 | 82 | DN125 | 3600x2200x2200 | 6800 |
| RK420APMII | 19.5-65.0 | 18.6-62.0 | 16.8-56.0 | 15.2-50.5 | 315 | 82 | DN125 | 4200x2300x2350 | 8000 |
| RK480APMII | 22.5-75.0 | 21.9-73.0 | 19.2-64.0 | 16.5-55.0 | 355 | 82 | DN150 | 4200x2200x2350 | 8500 |
| RK540APMII | 25.2-84.0 | 24.6-82.0 | 21.6-72.0 | 18.3-61.0 | 400 | 82 | DN150 | 4200x2200x2350 | 9800 |
Two stage air end
Feature:Two-stage compressor air-end
Advantage:Low compression ratio, Low temperature rising, Low air leakage
Benefit:15% energy-saving
High-efficiency Motor
Feature:IE4 permanent magnet motor/IE4 High-efficiency motor
Advantage:Motor efficiency 97%
Benefit:5% energy-saving
Intelligent control
Feature:VFD system
Advantage:Constant pressure output to remove pressure fluctuation and off-load, Constant temperature output at 9-~85°C, Low starting current to protect components
Benefit:15% energy-saving
Smart display screen
Feature:Intelligent control system
Advantage:10 inch monitor to show all the date
Benefit:Simple operation and touble free
Cooling fan
Feature:Large cooler system
Advantage:Axial flow Fan used for good cooling effect
Benefit:Allow ambient temperature at 52°C
Systematic Design of Oil separator
Feature:Large oil system
Advantage:Reduce internal pressure loss avoid oil, Leakage for safety
Benefit:3% energy-saving
Filter
Feature:Double filtering system
Advantage:Remove impurity from air and cleanness
Benefit:Longer life air -end and lubrication oil
Air inlet valve
Feature:High vacuum degree:700mmHg
Advantage:Large suction area, Low load energy consumption in unloaded operation,
Fast check: prevent unloading and shutdown oil injection
Benefit:Cast aluminum to avoid rust and temperature change
Certifications
Two-stage compression variable frequency air compressors are widely used in electronics, metallurgy, aerospace, pipelines, furniture processing, machinery, petroleum gas, printing plants, plastic products, power plants, blow molding, painting, casting, spraying, automotive industry, metal industry , shipping terminals, food industry, textile factories, beverage factories and other industries.
Packaging & Shipping
Packaging & Shipping
1.Packing Details: Plywood crate pallet plus foam board and bubble film, Full closed wooden case. 1pcs/each package (for stationary screw air compressor)
2.Shipping method: by sea, by LCL/FCL or as requested
3.Delivery method: FOB, CFR, CIF and EXW etc.
4.Delivery time: in 7-15 days after receiving deposit (customized machines not included)
Successful cases
Company Profile
ZheJiang CHINAMFG Machinery Co., Ltd. is a company dedicated to the production and research and development of various gas compression equipment. The company was established in 2012 and has a total of 5 licensed technical engineers. Mainly engaged in air, nitrogen, CO2 and other special gas compression equipment and after-treat equipment. With the development in recent years, the company has established a foreign trade team in ZheJiang , and hired foreign trade consultants with 10 years of industry experience to better serve customers worldwide. With excellent quality and the support of 30 distributors worldwide, our annual sales in 2018 exceeded 5 million US dollars. We look CHINAMFG to working with you to create a better tomorrow!
Product process
After Sales Service
1.24/7 after sales service support in different languages.
2.Follow up the feedback of products in 2 months interval by email or call.
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians or local Authorized Service Center.
4.Technical training for customers in CHINAMFG air compressor factory or working site.
5.All kinds of technical documents in different languages.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 24month |
| Lubrication Style: | Lubricated |
| Customization: |
Available
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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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.
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What are the environmental considerations when using air compressors?
When using air compressors, there are several environmental considerations to keep in mind. Here’s an in-depth look at some of the key factors:
Energy Efficiency:
Energy efficiency is a crucial environmental consideration when using air compressors. Compressing air requires a significant amount of energy, and inefficient compressors can consume excessive power, leading to higher energy consumption and increased greenhouse gas emissions. It is important to choose energy-efficient air compressors that incorporate features such as Variable Speed Drive (VSD) technology and efficient motor design, as they can help minimize energy waste and reduce the carbon footprint.
Air Leakage:
Air leakage is a common issue in compressed air systems and can contribute to energy waste and environmental impact. Leaks in the system result in the continuous release of compressed air, requiring the compressor to work harder and consume more energy to maintain the desired pressure. Regular inspection and maintenance of the compressed air system to detect and repair leaks can help reduce air loss and improve overall energy efficiency.
Noise Pollution:
Air compressors can generate significant noise levels during operation, which can contribute to noise pollution. Prolonged exposure to high noise levels can have detrimental effects on human health and well-being and can also impact the surrounding environment and wildlife. It is important to consider noise reduction measures such as sound insulation, proper equipment placement, and using quieter compressor models to mitigate the impact of noise pollution.
Emissions:
While air compressors do not directly emit pollutants, the electricity or fuel used to power them can have an environmental impact. If the electricity is generated from fossil fuels, the associated emissions from power plants contribute to air pollution and greenhouse gas emissions. Choosing energy sources with lower emissions, such as renewable energy, can help reduce the environmental impact of operating air compressors.
Proper Waste Management:
Proper waste management is essential when using air compressors. This includes the appropriate disposal of compressor lubricants, filters, and other maintenance-related materials. It is important to follow local regulations and guidelines for waste disposal to prevent contamination of soil, water, or air and minimize the environmental impact.
Sustainable Practices:
Adopting sustainable practices can further reduce the environmental impact of using air compressors. This can include implementing preventive maintenance programs to optimize performance, reducing idle time, and promoting responsible use of compressed air by avoiding overpressurization and optimizing system design.
By considering these environmental factors and taking appropriate measures, it is possible to minimize the environmental impact associated with the use of air compressors. Choosing energy-efficient models, addressing air leaks, managing waste properly, and adopting sustainable practices can contribute to a more environmentally friendly operation.
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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.


editor by CX 2023-11-17