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Belt Driven Professional Rotary Screw Air Compressor 8bar 7.5hp / 5.5kw Air Cooling

Belt Driven Professional Rotary Screw Air Compressor 8bar 7.5hp / 5.5kw Air Cooling

Belt Driven Professional Rotary Screw Air Compressor 8bar 7.5hp / 5.5kw Air Cooling

Product Details:

Place of Origin: China
Brand Name: ZAKF
Certification: ISO2000, CE
Model Number: 5.5KW/7.5HP

Payment & Shipping Terms:

Minimum Order Quantity: 1 set
Price: us$500~us$800/set
Packaging Details: wooden case
Payment Terms: L/C, T/T, Western Union
Supply Ability: 10000sets/month
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Detailed Product Description
Condition: New Type: Screw Compressor
Configuration: Stationary Lubrication Style: Lubricated
Place Of Origin: China, Guangdong Brand Name: ZAKF
Certification: ISO2000, CE Warranty: 1 Year
Noise Level: 78 Db(A) Outlet Air Carry Lubricant Oil: <=3 Ppm
Motor Power: 5.5kw Discharge Pressure: 0.8MPa(a)

Belt driven professional screw air compressor manufacturer lubricated 8bar 7.5hp / 5.5kw air-cooling


Screw air compressor parameters:

MODEL: 5.5KW Belt Air cooling compressor Parameter
Free air deliver 0.76m3/min
Discharge pressure 0.8MPa(a)
Motor power 5.5kw
Motor speed 2890r/min
Voltage/HZ 380V/50HZ
Motor protection grade/insulation grade IP54/F
Driving method Belt
Noise level 75 db(A)
Cooling method Air cooling
Lubricant 4L
Outlet air carry lubricant oil ≤3ppm
Starting method Direct start
Air outlet pipe diameter Rp3/4"
Temperature of cooled outlet compressed air ≤Ambient temperature+15℃
Dimension/weight 750*600*710(mm)/160KG


Working principle of single screw air compressor

The air end of air compressor is composed of one cylindrical worm and two symmetrical plane star wheels, which are engaged and mounted in a casting. The worm groove, casting and the tooth surface form a sealed cavity. The worm rotates the star wheels. When the star wheels ove in the worm groove, the air

in the groove is compressed and exhausted. The worm has 6 grooves and is separated horizontally by two star wheels into two working cavities, each of which realizes separate suction, compression and exhaustion. Therefore,one single screw air compressor equals one unit of six double cylinder pistion



Our products have ISO2000 and CE certification. They are widely used in different types of industries, such as Power Station, steel industry ,mining, steel or textile.


Main Features:

1.Rational Structure

The star wheels are paired on both sides of the screw shaft to counteract the radial force acted on the shaft and the axial force on the channel by air. Hence the screw is free from any radial or axial force to achieve the absolute balance status.


2.High Efficiency
While running, each screw works twice per rotation so the channel space is fully utilized to achieve more exhaling volume compared with the same structural & dimension air compressor. The screw slot depth of screw decreases with the increase of pressure. When exhaling finishes and the star wheel separate from the screw slot, the depth is zero without any clearance volume, then high volume efficiency is achieved. As apply unloading device and servo automatic air volume adjustment, the energy save effects is significant which as much as more than 60% of lower consumption when running at no load.


3.Extended Maintenance Cycle
Free from any radial or axial forces and pressures in the air compression process, the shaft life of the air compressor can be as long as 50,000 hours, overcoming the easy wearability of the bearing and shaft seals of double screw air compressor, extending the maintenance cycle, and its durability exceeds other counterparts.


4.High Reliability

The star wheels of air compressor is made from PEEK materials, which has been proved of its high reliability in terms of air quality, energy saving, continual running, and low maintenance etc. over the years.




Business philosophy

Quality first, the credibility of the first, to create the best products and services to win-win cooperation, development and innovation to meet different customer needs, forge innovative and strive to passenger and I win.


Corporate mission

Manufacture of energy efficient screw air compressors, green power, so that human life is more harmonious, low-carbon.


Business vision

Let Chinese companies are willing to spend the Chinese-made screw air compressors, and whom the proud; to achieve partnership, teamwork, maximize enterprise value; achievement of sustainable development of enterprises, making China the world's recognized power.



Factory photos:


Belt Driven Professional Rotary Screw Air Compressor 8bar 7.5hp / 5.5kw Air Cooling




Q1: What's your moq?

A1: 1set


Q2: Are you a factory?

A2: Yes, we are.


Q3: How long is your delivery time?

A3: 5~8 work days.


Q4: Can you accept OEM orders?
Q4: Yes, with professional design team, OEM orders are highly welcome.


Q5: Do you provide sample for free?

A5: No, we don't.




Contact Details
Dongguan City Jiubei Compressor Parts Co., Ltd.

Contact Person: Ms. Grace

Tel: 86-769-81624099

Fax: 86-769-85352752

Send your inquiry directly to us (0 / 3000)

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