China Good quality 45kw 60HP Variable Speed VSD Rotary Screw Air Compressor with Energy Saving Design for Factory portable air compressor

Product Description

45kw 60hp  Variable Speed  VSD Rotary Screw Air Compressor with Energy Saving Design for Factory

1. Product picture : 

2. Product details :

1. Air end:
 Large rotor with reasonable length-diameter ratio, large gas production, low rotating speed, small vibration, low noise, effectively play the stability of the head, the rotor material is made of wear resistant high-strength alloy steel
2. Motor:
3 phase asynchronous motor,IP54/IP55,F class insulation,SKF over-loading bearing,output efficiency up to 95%,service factor SF=1.15,Volt. And Freq. can be customized,add oil injection port at both end of bearing shell, easy maintenance 
3. VSD inverter( optional ):
automatically adjust motor RMP according to real requirements, the actual power, energy -saving more than 30%,eliminate the CHINAMFG current 
4.High power cooling fan:
independent external motor which is not to be burn out easily,durable high heat dissipation efficiency ensure 24 hours continuous operation in high temperature and humidity environment
5.Cooler :
air cooler/ water cooler,high efficiency ,low noise,high quality aluminum material ,add axial flow fan, ensure perfect cooling effect
6.Air filter:
 two stage dust removal and filtering system with efficiency of up to 99.9% even in heavy-dust environment
7.oil filter
high efficiency oil filter removes lubricant magazine ensure longer working life and save maintenance cost
8.Intake valve
According the actual need, the gas can be automatically adjusted to reduce the operation cost
9.vibration-proof pressure gauge:
accurately display the pressure value of the air compressor tanker, convenient to view and adjust to meet different work needs
10.built -in soundproof cotton
inner sound-absorbing cotton .effectively reduce the noise machines operation, low noise little vibration, sounds as low as 50db
11. Intelligent PLC touch screen controller
simple operation, clear operation status, 24 hours for you to work

3.Product Features:

  1) High reliability
 • large air end and low speed design
 •SKF bearings whose service life for more than 50,000 hours , low wear and long service life 
 • original imported driven parts: coupling
 •More than 30% heat dissipation design 
  2)  Energy saving
 • The rotor adopts European and American patent screw type line design, high efficiency, energy saving
 • reasonably configure the fan , configure the minimum power on the premise of maximum efficiency
 • all standard direct drive units reduce gear configuration to lower energy loss
 • each unit is tested by the national energy efficiency laboratory, and each unit is guaranteed to reach the national level 

4. Features & advantages for GREAT  variable speed drivem( VSD) screw air compressor:

Feature and Advantage:
   1)High efficient energy saving returns
• adjustable air volume: with the variable speed control technology of the frequency converter, the air volume of the air compressor can be adjusted according to the actual air consumption of the user, so as to avoid the loss of unloading power and the generation of useless work
• variable frequency starting: avoid frequent loading and unloading, CHINAMFG current and torque when intermittent gas is used
• low-pressure operation: the unit can save 14% energy directly by eliminating the additional pressure burden of 2bar (7% energy loss can be saved for every 1bar reduced working pressure).

2)  Can be set according to the required pressure, keep the supply pressure constant
• constant pressure: at the set required pressure, the unit will always maintain a constant pressure supply of ±0.1bar
• when the air consumption increases, the pressure remains unchanged and the speed increases automatically to ensure the air supply demand;
• when the air consumption reduced, the pressure remains the same and the speed is automatically reduced to meet the requirement

3) More reliable
• variable frequency starting: avoid electrical and mechanical shocks
• variable frequency speed regulation: avoid the disadvantage of the unit running at high speed for a long time
• eliminating 2bar of high pressure reduces the chance of system leakage

5.Techincal parameter for GREAT VSD screw air compressor:

Model Working pressure (Bar) Flow Air Capacity (m3/min) Power (Kw) Noise (dBa) Dimensions (mm) Outlet pipe size Weight (Kg)
TKBP-7F 8/10/13 1.16/1.02/0.86 7.5 65 1250*760*1202 G3/4 280
TKBP-11F 8/10/13 1.62/1.40/1.21 11 66 1250*760*1202 G1 480
TKBP-15F 8/10/13 2.5/2.0/1.8 15 69 1200*1000*1290 G1 500
TKBP-18F 8/10/13 2.92/2.7/2.2 18.5 68 1200*1000*1290 G1 640
TKBP-22F 8/10/13 3.53/3.2/2.4 22 68 900*1450*1277 G1 660
TKBP-30F 8/10/13 5.0/4.5/3.5 30 70 1250*1030*1429 G1 1/2 950
TKBP-37F 8/10/13 6.3/5.6/4.8 37 70 1250*1030*1429 G1 1/2 990
TKBP-45F 8/10/13 7.5/6.8/5.8 45 70 1250*1030*1429 G1 1/2 1150
TKBP-55F/W 8/10/13 9.8/8.8/7.2 55 72 2150*1150*1500 DN50 2400
TKBP-75F/W 8/10/13 12.3/11.0/9.0 75 75 2150*1150*1500 DN50 2500
TKBP-90F/W 7.5/8.5/10/13 16.3/15.6/14.2/11.5 90 76 2300*1250*1681.5 DN50 2800
TKBP-110F/W 7.5/8.5/10/13 20.4/20.0/17.8/14.5 110 77 3100*1540*1900 DN80 3900
TKBP-132F/W 7.5/8.5/10/13 24.0/23.0/21.0/18.1 132 77 3100*1540*1990 DN80 4100
TKBP-160F/W 7.5/8.5/10/13 27.8/27.1/25.2/21.2 160 78 3500*1650*2050 DN80 4500
TKBP-185F/W 7.5/8.5/10/13 32.5/30.5/27.0/22.5 185 78 3500*1650*2050 DN100 5100
TKBP-200F/W 7.5/8.5/10/13 35.0/33.3/30.6/26.3 200 78 3650*2000*2330 DN100 5200
TKBP-220F/W 7.5/8.5/10/13 40.7/38.2/34.5/29.8 220 78 3650*2000*2330 DN100 5300
TKBP-250F/W 7.5/8.5/10/13 45.3/43/38.1/35.0 250 78 3650*2000*2330 DN100 5400

6.Application :

7. Certification :

8. Pakcing :

9. other related products :

·fixed speed(FSD) screw air compressor
·variable speed(VSD)screw air compressor
·permanent magnet variable speed( PM VSD)screw air compressor
·2 stage compression FSD screw air compressor
·2 stage compression PM VSD screw air compressor
·low pressure screw air compressor
·diesel engine driven portable screw air compressor
·electric motor driven portable screw air compressor
·outdoor use screw air compressor
·oil free screw blower 
·integrated screw air compressor for laser cutting machines

10. FAQ : 
Q1: Are you factory or trade company?  
A1: We are factory.
Q2: Warranty terms of your machine? 
A2: One year warranty for the machine and technical support according to your needs.
Q3: Will you provide some spare parts of the machines? 
A3: Yes, of course.
Q4: How long will you take to arrange production? 
A4: 380V 50HZ we can delivery the goods within 20 days. Other electricity or other color we will delivery within 30 days.
Q5: Can you accept OEM orders? 
A5: Yes, with professional design team, OEM orders are highly welcome!

11 . factory

GREAT air compressor, as 1 leading manufacture &exporter for screw air compressor in China. Founded in 1957 years, coving 20000 square meters. With over 200 skilled employees and 20 R&D research engineers, we focus on the research &develop, manufacture and service for screw air compressor and relative products .Our goal is to provide the high grade and most energy saving compressor for the world customer.
Our main products including screw air compressor, air dryer, air tanker, line filters and other relative compressed air products etc. we passed ISO and CE certificate. Germany standard and 60 years industry experience help us win the domestic and foreign customers praise .From 2016 opened to the world, now exporting to more than 100 countries. We have established a huge sales and service network at home and abroad.

“GREAT” as famous china brand for air compressor, our mission is to become a world-famous high-end brand and service for oversea customers. Welcome more oversea agents, dealers and distributors to join us. We also can do the OEM service for big customers


why you choose us ? 1. Over 60 years China professsinal manufacture for air compressor ,An ISO9000 company

2.European standard,China made &factory directly supply 

3. Superior porformance &high efficiency with reasonable price 

4.Low power consumptions for more output

5.Trouble free & cost saving

6.Timely pre-sale and after-sale service 

7.Easy operatation &maintenance  



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Lubrication Style: Oil-less
Cooling System: Water Cooling
Power Source: AC Power
Cylinder Position: Horizontal
Structure Type: Closed Type
Installation Type: Stationary Type


air compressor

What are the differences between stationary and portable air compressors?

Stationary and portable air compressors are two common types of air compressors with distinct features and applications. Here are the key differences between them:

1. Mobility:

The primary difference between stationary and portable air compressors is their mobility. Stationary air compressors are designed to be permanently installed in a fixed location, such as a workshop or a factory. They are typically larger, heavier, and not easily movable. On the other hand, portable air compressors are smaller, lighter, and equipped with handles or wheels for easy transportation. They can be moved from one location to another, making them suitable for jobsites, construction sites, and other mobile applications.

2. Power Source:

Another difference lies in the power source used by stationary and portable air compressors. Stationary compressors are usually powered by electricity, as they are designed for continuous operation in a fixed location with access to power outlets. They are connected to the electrical grid or have dedicated wiring. In contrast, portable compressors are available in various power options, including electric, gasoline, and diesel engines. This versatility allows them to operate in remote areas or sites without readily available electricity.

3. Tank Capacity:

Tank capacity is also a distinguishing factor between stationary and portable air compressors. Stationary compressors often have larger storage tanks to store compressed air for extended periods. The larger tanks enable them to deliver a continuous and steady supply of compressed air for longer durations without the need for frequent cycling. Portable compressors, due to their compact size and portability, generally have smaller tank capacities, which may be sufficient for intermittent or smaller-scale applications.

4. Performance and Output:

The performance and output capabilities of stationary and portable air compressors can vary. Stationary compressors are typically designed for high-volume applications that require a consistent and continuous supply of compressed air. They often have higher horsepower ratings, larger motor sizes, and higher air delivery capacities. Portable compressors, while generally offering lower horsepower and air delivery compared to their stationary counterparts, are still capable of delivering sufficient air for a range of applications, including pneumatic tools, inflation tasks, and light-duty air-powered equipment.

5. Noise Level:

Noise level is an important consideration when comparing stationary and portable air compressors. Stationary compressors, being larger and built for industrial or commercial settings, are often equipped with noise-reducing features such as sound insulation and vibration dampening. They are designed to operate at lower noise levels, which is crucial for maintaining a comfortable working environment. Portable compressors, while efforts are made to reduce noise, may produce higher noise levels due to their compact size and portability.

6. Price and Cost:

Stationary and portable air compressors also differ in terms of price and cost. Stationary compressors are generally more expensive due to their larger size, higher power output, and industrial-grade construction. They often require professional installation and may involve additional costs such as electrical wiring and system setup. Portable compressors, being smaller and more versatile, tend to have a lower upfront cost. They are suitable for individual users, contractors, and small businesses with budget constraints or flexible air supply needs.

When selecting between stationary and portable air compressors, it is essential to consider the specific requirements of the intended application, such as mobility, power source availability, air demands, and noise considerations. Understanding these differences will help in choosing the appropriate type of air compressor for the intended use.

air compressor

How are air compressors used in refrigeration and HVAC systems?

Air compressors play a vital role in refrigeration and HVAC (Heating, Ventilation, and Air Conditioning) systems, providing the necessary compression of refrigerant gases and facilitating the heat transfer process. Here are the key ways in which air compressors are used in refrigeration and HVAC systems:

1. Refrigerant Compression:

In refrigeration systems, air compressors are used to compress the refrigerant gas, raising its pressure and temperature. This compressed gas then moves through the system, where it undergoes phase changes and heat exchange to enable cooling or heating. The compressor is the heart of the refrigeration cycle, as it pressurizes and circulates the refrigerant.

2. Refrigeration Cycle:

The compression of refrigerant gas by the air compressor is an essential step in the refrigeration cycle. After compression, the high-pressure, high-temperature gas flows to the condenser, where it releases heat and condenses into a liquid. The liquid refrigerant then passes through an expansion valve or device, which reduces its pressure and temperature. This low-pressure, low-temperature refrigerant then enters the evaporator, absorbing heat from the surrounding environment and evaporating back into a gas. The cycle continues as the gas returns to the compressor for re-compression.

3. HVAC Cooling and Heating:

In HVAC systems, air compressors are used to facilitate cooling and heating processes. The compressor compresses the refrigerant gas, which allows it to absorb heat from the indoor environment in the cooling mode. The compressed gas releases heat in the outdoor condenser unit and then circulates back to the compressor to repeat the cycle. In the heating mode, the compressor reverses the refrigeration cycle, absorbing heat from the outdoor air or ground source and transferring it indoors.

4. Air Conditioning:

Air compressors are an integral part of air conditioning systems, which are a subset of HVAC systems. Compressed refrigerant gases are used to cool and dehumidify the air in residential, commercial, and industrial buildings. The compressor pressurizes the refrigerant, initiating the cooling cycle that removes heat from the indoor air and releases it outside.

5. Compressor Types:

Refrigeration and HVAC systems utilize different types of air compressors. Reciprocating compressors, rotary screw compressors, and scroll compressors are commonly used in these applications. The selection of the compressor type depends on factors such as system size, capacity requirements, efficiency, and application-specific considerations.

6. Energy Efficiency:

Efficient operation of air compressors is crucial for refrigeration and HVAC systems. Energy-efficient compressors help minimize power consumption and reduce operating costs. Additionally, proper compressor sizing and system design contribute to the overall energy efficiency of refrigeration and HVAC systems.

By effectively compressing refrigerant gases and facilitating the heat transfer process, air compressors enable the cooling and heating functions in refrigeration and HVAC systems, ensuring comfortable indoor environments and efficient temperature control.

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 Good quality 45kw 60HP Variable Speed VSD Rotary Screw Air Compressor with Energy Saving Design for Factory   portable air compressorChina Good quality 45kw 60HP Variable Speed VSD Rotary Screw Air Compressor with Energy Saving Design for Factory   portable air compressor
editor by CX 2024-03-06