BK7.5-8G 10HP 42CFM/8BAR Electric Stationary Cheap Screw Air Compressor

  • Lubrication Style: Lubricated
  • Cylinder Position: Vertical
  • Installation Type: Stationary Type
  • Motor Power: 7.5kw/10HP, 380V/50Hz, 3 phase
  • Discharge Pressure: 8bar (116psig)
  • Dimension: 800mm*620mm*800mm
  • Weight: 200KG
  • Transport Package: Carton or Wooden Case
  • Origin: Zhejiang, China
BK Series Screw Air Compressor Instruction:
The BK series compressors represent a significant advancement in design and performance. Each component is engineered for reliability and ease of maintenance. These compressors are manufactured in compliance with international standards such as CE, IAF, and others, ensuring high-quality performance. The new generation of BK compressors significantly reduces operating costs and provides cost savings with a fast return on investment.

The BK series industrial screw air compressor is available in belt-driven (11kw - 18.5kw), optional gear-driven, and direct-driven (7.5kw - 132kw) configurations, with discharge pressures ranging from 0.8MPa to 1.3MPa and the option for variable frequency control.
Product Application
Rotors are the key elements in producing compressed air efficiently. KAISHAN airends use a male 5-lobe rotor driving a 6-lobe female rotor. These advanced Y-profile rotors were introduced in the LG series compressors.

They have the following characteristics:

1. Larger rotors ensure slower rotor speeds, delivering compressed air more efficiently than smaller ones.

2. This results in energy cost savings and longer unit life.

3. Airends are guaranteed for 3 years. The rotor profile minimizes leakage, and tighter clearances achieved through advanced manufacturing processes result in higher efficiency and improved lubrication.

Main Features

Fully sealed & double screw, dual shock proof, smooth operation, can be installed anywhere.

♦ Exquisite shape and compact structure, covering a small area.

♦ Large displacement, stable pressure, and high efficiency.

♦ Low exhaust temperature (only 7°C~10°C higher than ambient temperature).

♦ Safe, reliable, smooth operation, low noise, long maintenance cycle, and extended service life.

♦ Intelligent control system ensures continuous cooperation without manual intervention.

♦ Multiple screw air compressors can operate together, starting or shutting down automatically based on air demand, eliminating the need for manual labor.

♦ Energy-saving for single compressors that adjust air demand automatically according to user requirements (frequency conversion type).

♦ Belt tension can be auto-matched with flexible belts, reducing pressure and efficiency loss, and increasing time efficiency.

♦ Narrow belts provide higher transmission power, about 98% efficiency, reduce internal heat, prevent aging, enjoy longer service life, and much lower stretch ability.

Economic Operation
The system adopts stepless capacity regulation from 0-100%. When gas consumption decreases, exhaust volume decreases, motor current also drops. When no gas, the compressor runs empty, and after a long period, it automatically shuts down. When gas consumption increases, it resumes operation. This ensures optimal energy-saving performance.

Good Environment Adaptability
The cooling system is specially designed, especially suitable for high-temperature and high-humidity environments in Asia. Vibration and noise reduction measures are excellent, allowing Kaishan screw air compressors to be installed without special foundations, just leaving minimal ventilation and maintenance space, making it easy to arrange your compressor.

Parameter for BK Series Screw Air Compressor
Model Discharge pressure Air capacity Motor Power Outlet Size Noise level Weight Dimension
Mpa        m3/min CFM   Kw HP inch dB(A)     kG ( L x W x H ) mm
BK7.5-8G 0.8 1.2 42 7.5 10 G1 72 200 800x620x800
BK11-8 0.8 1.7 59.5 11 15 G1 72 290 700x670x1250
BK11-10 1 1.5 52.5 11 15 G1
Bk11-13 1.3 1.2 42 11 15 G1
BK15-8G 0.8 2.4 84 15 20 G1 72 290 700x670x1250
BK15-10 1 2.2 77 15 20 G1
BK15-13 1.3 1.7 59.5 15 20 G1
BK18-8 0.8 3 105 18.5 25 G1 75 500 1080 x880 x1235
BK18-10 1 2.7 94.5 18.5 25 G1
BK18-13 1.3 2.3 80.5 18.5 25 G1
BK22-8G 0.8 3.6 126 22 30 G1 76 560 1410*850*1120
BK22-8 0.8 3.6 126 22 30 G1 540 1080*880*1235
BK22-10 1 3.2 112 22 30 G1
BK22-13 1.3 2.7 94.5 22 30 G1
BK30-8 0.8 5 175 30 41 G1 1/2 77 650 1120 x 930 x 1290
BK30-10 1 4.4 154 30 41 G1 1/2
BK30-13 1.3 3.6 126 30 41 G1 1/2
BK37-8G 0.8 6 210 37 50 G1 1/2 79 740 1530*900*1230 
BK37-8 0.8 6 210 37 50 G1 1/2 1240*1030*1435 
BK37-10 1 5.5 192.5 37 50 G1 1/2
BK37-13 1.3 4.6 161 37 50 G1 1/2
BK45-8GH 0.8 7.1 248.5 45 61 G1 1/4 78 970 1700 x 1050 x 1255
BK45-8 0.8 7.1 248.5 45 61 G1 1/2 79 820 1240 x1030 x 1595
BK45-10 1 6.5 227.5 45 61 G1 1/2 79 820
BK45-13 1.3 5.6 196 45 61 G1 1/2 79 820
BKL55-8GH 0.8 10 350 55 75 G1 1/2 80 1180 1790 x 1150 x 1360
BK55-8 0.8 9.5 332.5 55 75 G1 1/2 80 1200 1540 x 1200 x 1470
BK55-10 1 8.5 297.5 55 75 G1 1/2 80 1200
BK55-13 1.3 7.4 259 55 75 G1 1/2 80 1200
BK75-8GH 0.8 13 455 75 102 G2 81 1470 2000 x 1200 x 1500
BKL90-8GH 0.8 16 560 90 122 G2 81 1520
BK110-8G 0.8 20 700 110 150 DN65 82 2210 2410 x 1300 x 1670
BKL132-8GH 0.8 22 770 132 180 DN65 82 2370
BK7.5-8G 10HP 42CFM/8BAR Electric Stationary Cheap Screw Air Compressor
BK7.5-8G 10HP 42CFM/8BAR Electric Stationary Cheap Screw Air Compressor
Compressor Inside details:
BK7.5-8G 10HP 42CFM/8BAR Electric Stationary Cheap Screw Air Compressor

Living producing status in workshop: 
BK7.5-8G 10HP 42CFM/8BAR Electric Stationary Cheap Screw Air Compressor
About Kaishan Group:
BK7.5-8G 10HP 42CFM/8BAR Electric Stationary Cheap Screw Air Compressor

FAQ Collection:


Q1: Are you factory or trade company?
A1: We are a factory and also have our own trading company.

Q2: What is the exact address of your factory?
A2: Our factory is located at No.9 Kaixuan Ave West, Economic Zone Quzhou, Zhejiang, China.

Q3: What is the warranty for your machine?
A3: One year warranty for the machine and technical support as per your needs.

Q4: Do you provide spare parts for the machines?
A4: Yes, we do.

Q5: What about the voltage of products? Can they be customized?
A5: Our standard voltage is 380V, 50Hz, 3-phase. Customization is possible based on your requirements.

Q6: What payment terms do you accept?
A6: 30% T/T in advance, 70% T/T against B/L copy.

Q7: How long will it take to arrange production?
A7: Normal goods can be delivered within 7-15 days. Non-standard electrical items take 25-30 days.
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