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Single-Stage PM VSD Screw Air Compressor

OKF-HPTSW 10-75 HP Permanent Magnet VSD Screw Air Compressors

Five single-stage PM VSD screw air compressor models from 10 to 75 HP, rated for 8 bar and 1.1 to 9.4 m³/min. Motor protection is IP55 on 10 to 50 HP models and IP65 on the 75 HP model. Models from 10 to 50 HP pair an oil separation vessel with an external separator element.
7.5-55 kW (10-75 HP)
Power Range
8 bar
Pressure Range
1.1-9.4 m³/min
Rated Flow
Air Cooling
Cooling type
Request a QuoteView Specifications

Series Overview

The OKF-HPTSW Series includes five single-stage permanent magnet variable speed screw air compressors from 10 to 75 HP. All five models are rated for 8 bar, with rated flow from 1.1 to 9.4 m³/min. Buyers can compare air capacity, installation size, connection size, and electrical requirements within the same series.

Use the Specifications table to match the required flow with the nearest model. Then check the unit dimensions, outlet connection, noise level, and motor protection before requesting a quote.

Product Features

  • Permanent magnet variable speed control adjusts motor speed as compressed air demand changes.
  • Single-stage compression and direct drive are standard across the five models.
  • Variable frequency starting is standard, and all models use air cooling.
  • The 10 to 50 HP models use IP55 motors with Class F insulation. The 75 HP model uses an IP65 motor with Class F insulation.
  • The 10 to 50 HP models use an oil separation vessel followed by an external separator element. The series is rated for outlet oil content of no more than 3 ppm.
  • The standard power supply is 380 V / 3 Ph / 50 Hz. Specify any different voltage or frequency when requesting a quote.

Model Selection

Select the model by required flow at 8 bar. The OKF-10HPTSW delivers 1.1 m³/min, while the OKF-75HPTSW delivers 9.4 m³/min. The three models between them provide 2.3, 3.6, and 6.3 m³/min, allowing you to compare capacity without estimating from motor power alone.

Check the installation requirements after selecting the flow range. Overall dimensions run from 800×600×800 mm to 1500×1150×1600 mm, and outlet connections run from DN15 to DN50. Confirm service clearance, ventilation, piping size, and the available 380 V / 3 Ph / 50 Hz supply before ordering.

Quote Preparation

Include the required flow, working pressure, power supply, application, installation space, and quantity in your inquiry. For OEM or ODM orders, also list any requested changes to the logo, color, voltage, frequency, configuration, or packaging. The minimum order is one unit.

Model
Power
Pressure / Flow
Max. Ambient Temperature
Control Mode
Tank
Pipe
Voltage
Noise
Weight
Dimensions
Notes
OKF-10HPTSW
7.5
8 bar / 1.1 m³/min
PM VSD
15
380V / 3Ph / 50Hz
≤60 ±2
800×600×800 mm
OKF-20HPTSW
15
8 bar / 2.3 m³/min
PM VSD
20
380V / 3Ph / 50Hz
≤68 ±2
1000×800×1040 mm
OKF-30HPTSW
22
8 bar / 3.6 m³/min
PM VSD
25
380V / 3Ph / 50Hz
≤72 ±2
1130×900×1130 mm
OKF-50HPTSW
37
8 bar / 6.3 m³/min
PM VSD
40
380V / 3Ph / 50Hz
≤70 ±2
1300×1000×1300 mm
OKF-75HPTSW
55
8 bar / 9.4 m³/min
46
PM VSD
50
380V / 3Ph / 50Hz
78 ±2
850
1500×1150×1600 mm
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