China Hot selling Made in China CHINAMFG Bk45kw-8bar Electric Rotary Screw Air Compressor mini air compressor

Product Description

 

BK series new screw air compressor new-generation low-consumption and high-efficiency motor;Large starting torque, insulation class F, protection class IP54;SKF bearings, low noise and long life;With a refueling device, it can be refueled without stopping.

Product Description

Yin-Yang Rotor Compression System
Better sealing, smaller leakage channel will produce high-efficiency roller sliding film to reduce heat of compression, and gas production is improved by 10%-15%

Built-in oil and gas separation design
Adopt a built-in oil separation setting to ensure the oil and gas separation effect and reduce fuel consumption
·High filtration level and low flow resistance
·Good noise reduction and mute effect
· Oil and gas separation, high-temperature resistance, high-pressure resistance – reduce the oil content of the exhaust
·Clean exhaust to ensure clean gas

Timely Smart Control Panel
·Using a user-friendly interface to prompt operation, clear at a glance, real-time monitoring of information, providing important information alarm, storage, and query functions

Precision oil filter
·Use high-density filter paper to filter oil
· Completely filter out lubricating oil

Low-consumption and high-efficiency motor, large starting torque
·Insulation class F, protection class IP23.
·Built-in refueling device, can refuel without stopping.

Cooling copper pipe
The radiator made of high-quality copper tubes can make the heat generated by the condensation of the machine quickly Dissipate, maintain the internal temperature

oil pipeline
·Excellent material
·Stable oil delivery without clogging

The system adopts the step-less adjustment of the displacement of 0-100. When the air consumption is reduced, the exhaust volume is also reduced, and the current of the motor is also reduced at the same time; when the air is not used, the air compressor runs empty, and the air compressor is automatically stopped for a long time. When the gas consumption increases, resume the heavy vehicle. Excellent energy-saving effect.
good environmental adaptability
The extraordinary cooling system design is especially suitable for Asia’s high temperature and high humidity environments. The excellent vibration isolation technology and noise reduction measures make the installation of CHINAMFG screw air compressors not require special foundations. As long as a small space for ventilation and maintenance is left, your compressor can be installed well.
Design features of screw rotor profile:
1. Fully realize “surface-to-surface” meshing, thereby helping to form a hydrodynamic lubricating film, reducing lateral leakage through the contact belt, improving compressor efficiency; and improving rotor processing and inspection performance.
2. Adopt the design idea of “large rotor, large bearing, low speed”, the speed is 3050 lower than other brands, which can reduce noise and vibration, reduce exhaust temperature, improve rotor rigidity, prolong service life, and reduce the carbonization of impurities and oil animal sensitivity.
3. The power range is 4355KW, of which 18.5250KW are directly connected without a gearbox, 200KW and 250KW are directly connected with 4-pole motors, and the speed is as low as

Product Parameters

 

Screw group

5: 6 Gear rotor

Compression method

Continuous, CHINAMFG

Compressed air outlet pressure

10MPa

Compressed air outlet temperature

Air-cooled

Compressed air outlet temperature

10ºC~15ºC higher than the ambient temperature

Volume of Lubricating Oil

About 7.5 liters

Motor speed

N=2930r/min

Rated power

45kw

Displacement

1.3MPa

7.1m³/min

Weight

800kg

Upper air temperature

45ºC

Lower limit of air temperature

0ºC

Fuel consumption

Exhaust oil content is less than 3PPM

Noise level

72dB(A)

Dimensions (length×width×height) (mm)

1200x800x1120

Model

Working Pressure

Capacity

Motor Power

Connector

Weight

Noise

Dimension

  Bar

m³/min

kw

kg

dB(A)

mm

BMVF7.5G

0.65-1.0

1.0-1.25

7.5

G3/4

200

72

800*510*800

BMVF11G

0.65-1.0

1.5-1.85

11

G1

 

260

73

1000*670*1090

BMVF15G 0.65-1.0

2.05-2.35

15

280

73

1000*670*1090

BMVF22G

0.65-1.0

2.95-3.95

22

390

74

1200*800*1120

BMVF37G 0.65-1.0

5.05-6.35

37

600

76

1340*850*1300

BMVF45G

0.65-1.0

6.45-8.2

45

800

78

1480*1030*1365

BMVF55G 0.65-1.0

8.2-9.85

55

810

80

BMVF75 0.65-1.0

10.5-13.1

75

G2

1280

81

1800*1190*1710

BMVF90 0.65-1.0

12.5-15.5

90

1300

81

BMVF110 0.65-0.8

22

110

DN65

1850

82

2700*1230*1730

BMVF132 0.65-0.8

24

132

2270

82

 

Model Working Pressure Displacement Motor Power Exhaust interface Weight Noise Dimension
  Bar m3/min kw   kg dB(A) mm
BK7.5-8G 8 1.2 7.5 G1 200 70 800*620*800
BK7.5-10 10 1 7.5 G3/4 200 72 720*700*1000
BK7.5-13 13 0.8 7.5 G3/4 200 72 720*700*1000
BK11-8G 8 1.7 11 G1 300 72 1000*670*1090
BK11-10 10 1.5 11 G1 290 72 700*670*1250
BK11-13 13 1.2 11 G1 290 72 700*670*1250
BK15-8G 8 2.4 15 G1 280 73 1000*670*1090
BK15-10 10 2.2 15 G1 290 73 700*670*1250
BK15-13 13 1.7 15 G1 290 73 700*670*1250
BK18-8 8 3 18.5 G1 500 74 1080*880*1235
BK18-10 10 2.7 18.5 G1 500 74 1080*880*1235
BK18-13 13 2.3 18.5 G1 500 74 1080*880*1235
BK22-8ZG 8 3.6 22 G1 380 74 1200*800*1100
BK22-10 10 3.2 22 G1 540 74 1080*880*1235
BK22-13 13 2.7 22 G1 540 74 1080*880*1235
BK30-8 8 5 30 G1 1/2 650 75 1120*930*1290
BK30-10 10 4.4 30 G1 1/2 650 75 1120*930*1290
BK30-13 13 3.6 30 G1 1/2 650 75 1120*930*1290
BK37-8ZG 8 6 37 G1 1/2 740 76 1530*900*1230
BK37-10 10 5.5 37 G1 1/2 730 76 1240*1030*1435
BK37-13 13 4.6 37 G1 1/2 730 76 1240*1030*1435
BK45-8G 8 7.1 45 G1 1/2 800 78 1480*1030*1345
BK45-10 10 6.5 45 G1 1/2 820 78 1240*1030*1595
BK45-13 13 5.6 45 G1 1/2 820 78 1240*1030*1595
BK55-8G 8 10 55 G1 1/2 800 80 1480*1030*1345
BK55-10 10 8.5 55 G1 1/2 1200 80 1545*1200*1470
BK55-13 13 7.4 55 G1 1/2 1200 80 1545*1200*1470

Detailed Photos

 

Built-in oil separation system The built-in oil separation design ensures the separation of oil and gas and reduces fuel consumption.

Certified Genuine Parts. CHINAMFG Certified Genuine Parts to ensure the compressors delivered to you always perform at high performance.

Adhering to the basic belief in environmental sustainability, we have been committed to continuously improving the energy efficiency of our products and creating value for users.
 

Energy saving and economical, reliable and durable, environmentally friendly and quiet.

The Latest-Generation High Efficiency Screw Rotor! “Large Rotor, Low Speed”, Direct Drive

The latest generation of high-efficiency rotor profiles, full-spectrum screw mainframe meets the national energy-saving standards.
 

 

Application

Electric power, petroleum, auto repair, laser equipment, metallurgy, biopharmaceutical, printing, garment industry

Company Profile

FAQ

1.How do your prices compare to the manufacturer/factory?

  We are the main distributor of major construction machinery manufacturers/factories in China and keep getting the best dealer prices. From the comparison and feedback from many customers, our price is even more competitive than the factory/factory price.

2.How is the delivery time?

  In general, we can deliver ordinary machines immediately to our customers within 7 days, as we have various resources to inspect stock machines, locally and nationwide, and receive machines in a timely manner. But it takes more than 30 days for a manufacturer/factory to produce an order machine.

3.How often can you respond to customer inquiries?

  Our team is made up of a group of hardworking and dynamic people who work around the clock to respond to customer inquiries and questions. Most issues can be successfully resolved within 8 hours, while manufacturers/factories take longer to respond.

4.Which payment methods can you accept?

 Usually we can use wire transfer or letter of credit, and sometimes DP. (1) Wire transfer, 30% deposit in advance, 70% balance paid before shipment, long-term cooperation customers can present a copy of the original bill of lading. (2) Letter of credit, 100% irrevocable letter of credit without “soft   terms” from internationally recognized banks can be accepted. Please seek advice from the sales manager you work with.

5.Which clauses in the Incoterms 2571 can you use?

  We are a professional and mature international player and can handle all INCOTERMS 2571, we usually work on regular terms like FOB, CFR, CIF, CIP, DAP.

6.How long are your prices valid?

  We are a gentle and friendly supplier, never greedy for profit. Our prices remain largely stable throughout the year. We will only adjust the price according to the following 2 situations: (1) USD exchange rate: According to the international currency exchange rate, the RMB exchange rate is quite different; (2) The manufacturer/factory adjusted the machine price due to the increase of labor cost or raw material cost.

7.What logistics methods can you use for shipping?

We can transport construction machinery with various means of transport. (1) 80% of our shipping will be by the sea, to all major continents such as Africa, South America, Middle East. (2) China’s inland neighboring countries, such as Russia, Mongolia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, etc., can transport by road or rail. (3) For urgently needed light spare parts, we can provide international express services, such as DHL, TNT, UPS, FedEx, etc.

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After-sales Service: Warranty Service
Warranty: 1 Year
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Horizontal
Samples:
US$ 2000/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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air compressor

Are there special considerations for air compressor installations in remote areas?

Yes, there are several special considerations to take into account when installing air compressors in remote areas. These areas often lack access to infrastructure and services readily available in urban or well-developed regions. Here are some key considerations:

1. Power Source:

Remote areas may have limited or unreliable access to electricity. It is crucial to assess the availability and reliability of the power source for operating the air compressor. In some cases, alternative power sources such as diesel generators or solar panels may need to be considered to ensure a consistent and uninterrupted power supply.

2. Environmental Conditions:

Remote areas can present harsh environmental conditions that can impact the performance and durability of air compressors. Extreme temperatures, high humidity, dust, and corrosive environments may require the selection of air compressors specifically designed to withstand these conditions. Adequate protection, insulation, and ventilation must be considered to prevent damage and ensure optimal operation.

3. Accessibility and Transport:

Transporting air compressors to remote areas may pose logistical challenges. The size, weight, and portability of the equipment should be evaluated to ensure it can be transported efficiently to the installation site. Additionally, the availability of suitable transportation infrastructure, such as roads or air transportation, needs to be considered to facilitate the delivery and installation process.

4. Maintenance and Service:

In remote areas, access to maintenance and service providers may be limited. It is important to consider the availability of trained technicians and spare parts for the specific air compressor model. Adequate planning for routine maintenance, repairs, and troubleshooting should be in place to minimize downtime and ensure the longevity of the equipment.

5. Fuel and Lubricants:

For air compressors that require fuel or lubricants, ensuring a consistent and reliable supply can be challenging in remote areas. It is necessary to assess the availability and accessibility of fuel or lubricant sources and plan for their storage and replenishment. In some cases, alternative or renewable fuel options may need to be considered.

6. Noise and Environmental Impact:

Remote areas are often characterized by their natural beauty and tranquility. Minimizing noise levels and environmental impact should be a consideration when installing air compressors. Selecting models with low noise emissions and implementing appropriate noise reduction measures can help mitigate disturbances to the surrounding environment and wildlife.

7. Communication and Remote Monitoring:

Given the remote location, establishing reliable communication channels and remote monitoring capabilities can be essential for effective operation and maintenance. Remote monitoring systems can provide real-time data on the performance and status of the air compressor, enabling proactive maintenance and troubleshooting.

By addressing these special considerations, air compressor installations in remote areas can be optimized for reliable operation, efficiency, and longevity.

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 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 Hot selling Made in China CHINAMFG Bk45kw-8bar Electric Rotary Screw Air Compressor   mini air compressorChina Hot selling Made in China CHINAMFG Bk45kw-8bar Electric Rotary Screw Air Compressor   mini air compressor
editor by CX 2024-04-19