Home > Products > Screw Air Compressors > 18-22kW Screw Air Compressor
Direct-coupled air end — no belts to tension and no belt dust inside the enclosure. The 18-22kW Screw Air Compressor is built for continuous industrial duty. It runs on a direct-coupled air end with no belts to re-tension, and it is delivered as a complete package — airend, motor, cooler, separator and controller on one base frame — so on-site work is limited to power, piping and a drain.
A single cutaway view of the whole unit: airend, drive motor, separator tank, coolers, filtration and controller mounted on one base frame. Use it to check the space envelope and service access before ordering.
Close-up of this part of the machine.
Close-up of this part of the machine.
Close-up of this part of the machine.
A TEFC induction motor sized to the airend with a wide service factor. Direct-coupled to the airend through a flexible coupling — no belt tension to re-check, no belt dust in the enclosure.
A single-stage oil-injected rotary screw airend with asymmetric rotors machined and lapped as a matched pair. Large-diameter rotors run at low speed for a long bearing life and a stable specific power figure.
Spin-on full-flow oil filter with a large filtration area. It protects the airend bearings from wear particles and keeps the oil service interval predictable.
Wet separator tank with a two-stage element that brings carry-over down to a few parts per million. The vertical design gives the oil time to settle before the next cycle.
Heavy-duty intake filter with a high dust-holding capacity. Clean intake air is the cheapest way to hold discharge temperature and power draw where the datasheet says they should be.
Aluminium plate-fin coolers for the oil and the compressed air, with a fan sized for ambient conditions. Keeps discharge temperature inside the limits that protect the oil charge.
Optional telematics module that logs pressure, temperature, running hours and service due dates to a web dashboard or phone app. Useful when the machine runs unattended.
| Model | Working pressure | Capacity FAD | Motor Power | Voltage | Starter | Oulet | Weight | Dimension (mm) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bar | psi | cfm | m3/min | hp | kw | V/Hz | Mode' | Diameter | Kg | L | W | H | |
| WBS15 | 7 | 100 | 92 | 2.6 | 20 | 15 | 380/50 or Customized | Star-Delta Soft Starter Inverter | G3/4 | 340 | 1050 | 690 | 1080 |
| 8 | 116 | 85 | 2.4 | ||||||||||
| 10 | 145 | 74 | 2.1 | ||||||||||
| 12 | 174 | 64 | 1.8 | ||||||||||
| WBS18 | 7 | 100 | 113 | 3.2 | 25 | 18 | 380/50 or Customized | Star-Delta Soft Starter Inverter | G1 | 520 | 1350 | 780 | 1250 |
| 8 | 116 | 106 | 3.0 | ||||||||||
| 10 | 145 | 95 | 2.7 | ||||||||||
| 12 | 174 | 81 | 2.3 | ||||||||||
| WBS22 | 7 | 100 | 131 | 3.7 | 30 | 22 | 380/50 or Customized | Star-Delta Soft Starter Inverter | G1 | 540 | 1350 | 780 | 1250 |
| 8 | 116 | 124 | 3.5 | ||||||||||
| 10 | 145 | 110 | 3.1 | ||||||||||
| 12 | 174 | 95 | 2.7 | ||||||||||
| WBS30 | 7 | 100 | 187 | 5.3 | 40 | 30 | 380/50 or Customized | Star-Delta Soft Starter Inverter | G1-1/2 | 940 | 1420 | 900 | 1425 |
| 8 | 116 | 180 | 5.1 | ||||||||||
| 10 | 145 | 163 | 4.6 | ||||||||||
| 12 | 174 | 138 | 3.9 | ||||||||||
Air tools, blow-off, clamping and CNC air supply.
Assembly lines, paint shops, pneumatic actuation.
Assembly, PCB cleaning and general plant air.
Cutting, grinding, deburring and surface treatment.
Pick-and-place, forming, gripper and press air.
Process air and general utility air.
Loom air and general plant supply.
Any plant that needs a steady 7-12 bar air supply.
Every unit ships with an 18-month warranty on the air end and 12 months on the rest of the machine, counted from commissioning or 24 months from shipment, whichever comes first.
Each machine is run on the test bench and the delivered flow, working pressure, current draw and noise level are recorded against the datasheet before it is crated.
Installation drawings, piping diagrams and a commissioning checklist are supplied with the machine, with remote engineering support during start-up.
Airends, motors, controllers, filters, separators and cooler assemblies are held in our own warehouse, so service parts are not tied to a production run.
This table lists the models in this power band. If your duty is between two frames, size on the larger one — running a screw compressor at part load for long periods costs more than the price difference between the two frames.
Yes. The enclosure and the rotating (rather than reciprocating) compression principle keep the noise level well below a piston unit of similar output, so it can usually go on the shop floor rather than in a separate plant room.
Air filter, oil filter and oil separator element on the hours shown in the manual, plus the oil charge. Belt-free direct drive means there is no belt tension to check.
Yes — the inverter option is listed in the specification table and is the usual choice where air demand varies through the shift.
Tell us your requirements and our sales team will reply within 24 hours.
