Home > Products > 2 Stage Compression Compressors > 22-355 kW 2-Stage Compression Screw Air Compressor
Two-stage compression with intercooling — lower specific power than a single stage at the same pressure. The 22-355 kW 2-Stage Compression 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.
The machine as shipped: canopy, control panel, service doors and mounting feet.
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.
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.
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.
Vector inverter that trims motor speed to match actual air demand instead of loading and unloading at a fixed speed. Highest saving on installations that sit part-loaded most of the day.
Colour touch display showing line pressure, outlet temperature, running hours and the next service date, with alarm history for fault finding.
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.
Close-up of this part of the machine.
Close-up of this part of the machine.
Comparison of the two-stage design against a conventional single stage at the same discharge pressure: lower compression ratio per stage, lower discharge temperature, and lower specific power.
Comparison of the two-stage design against a conventional single stage at the same discharge pressure: lower compression ratio per stage, lower discharge temperature, and lower specific power.
| 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 | |
| WBS22 | 7 | 100 | 159 | 4.5 | 30 | 22 | 380/50 or Customized | Star-Delta Inverter | G1 | 560 | 1500 | 800 | 1300 |
| 8 | 116 | 141 | 4.0 | ||||||||||
| 10 | 145 | 106 | 3.0 | ||||||||||
| 12 | 172 | 78 | 2.2 | ||||||||||
| WBS30 | 7 | 100 | 222 | 6.3 | 40 | 30 | 380/50 or Customized | Star-Delta Inverter | G1-1/2 | 970 | 1800 | 1150 | 1500 |
| 8 | 116 | 211 | 6.0 | ||||||||||
| 10 | 145 | 187 | 5.3 | ||||||||||
| 12 | 172 | 177 | 5.0 | ||||||||||
| WBS37 | 7 | 100 | 269 | 7.6 | 50 | 37 | 380/50 or Customized | Star-Delta Inverter | G1-1/2 | 1050 | 1800 | 1150 | 1500 |
| 8 | 116 | 258 | 7.3 | ||||||||||
| 10 | 145 | 230 | 6.5 | ||||||||||
| 12 | 172 | 201 | 5.7 | ||||||||||
| WBS45 | 7 | 100 | 329 | 9.3 | 60 | 45 | 380/50 or Customized | Star-Delta Inverter | G1-1/2 | 1550 | 1950 | 1200 | 1600 |
| 8 | 116 | 357 | 10.1 | ||||||||||
| 10 | 145 | 300 | 8.5 | ||||||||||
| 12 | 172 | 265 | 7.5 | ||||||||||
| WBS55 | 7 | 100 | 466 | 13.2 | 75 | 55 | 380/50 or Customized | Star-Delta Inverter | G2 | 1750 | 1950 | 1200 | 1600 |
| 8 | 116 | 459 | 13.0 | ||||||||||
| 10 | 145 | 389 | 11.0 | ||||||||||
| 12 | 172 | 318 | 9.0 | ||||||||||
| WBS75 | 7 | 100 | 583 | 16.5 | 100 | 75 | 380/50 or Customized | Star-Delta Inverter | DN50 | 2100 | 1950 | 1200 | 1600 |
| 8 | 116 | 534 | 15.1 | ||||||||||
| 10 | 145 | 477 | 13.5 | ||||||||||
| 12 | 172 | 424 | 12.0 | ||||||||||
| WBS90 | 7 | 100 | 724 | 20.5 | 120 | 90 | 380/50 or Customized | Star-Delta Inverter | DN50 | 2200 | 2650 | 1650 | 1670 |
| 8 | 116 | 689 | 19.5 | ||||||||||
| 10 | 145 | 583 | 16.5 | ||||||||||
| 12 | 172 | 512 | 14.5 | ||||||||||
| WBS110 | 7 | 100 | 848 | 24.0 | 150 | 110 | 380/50 or Customized | Star-Delta Inverter | DN80 | 3900 | 2650 | 1650 | 1670 |
| 8 | 116 | 830 | 23.5 | ||||||||||
| 10 | 145 | 724 | 20.5 | ||||||||||
| 12 | 172 | 618 | 17.5 | ||||||||||
| WBS132 | 7 | 100 | 1018 | 28.8 | 180 | 132 | 380/50 or Customized | Star-Delta Inverter | DN80 | 4000 | 2650 | 1650 | 1670 |
| 8 | 116 | 954 | 27.0 | ||||||||||
| 10 | 145 | 855 | 24.2 | ||||||||||
| 12 | 172 | 742 | 21.0 | ||||||||||
| WBS160 | 7 | 100 | 1272 | 36.0 | 220 | 160 | 380/50 or Customized | Star-Delta Inverter | DN80 | 4180 | 3015 | 1900 | 1880 |
| 8 | 116 | 1166 | 33.0 | ||||||||||
| 10 | 145 | 1060 | 30.0 | ||||||||||
| 12 | 172 | 919 | 26.0 | ||||||||||
| WBS185 | 7 | 100 | 1466 | 41.5 | 250 | 185 | 380/50 or Customized | Inverter | DN80 | 4510 | 3015 | 1900 | 1880 |
| 8 | 116 | 1378 | 39.0 | ||||||||||
| 10 | 145 | 1219 | 34.5 | ||||||||||
| 12 | 172 | 1078 | 30.5 | ||||||||||
| WBS200 | 7 | 100 | 1519 | 43.0 | 270 | 200 | 380/50 or Customized | Inverter | DN100 | 4800 | 3600 | 2150 | 2150 |
| 8 | 116 | 1484 | 42.0 | ||||||||||
| 10 | 145 | 1343 | 38.0 | ||||||||||
| 12 | 172 | 1166 | 33.0 | ||||||||||
| WBS220 | 7 | 100 | 1696 | 48.0 | 300 | 220 | 380/50 or Customized | Inverter | DN100 | 5300 | 3600 | 2150 | 2150 |
| 8 | 116 | 1590 | 45.0 | ||||||||||
| 10 | 145 | 1413 | 40.0 | ||||||||||
| 12 | 172 | 1237 | 35.0 | ||||||||||
| WBS250 | 7 | 100 | 1979 | 56.0 | 340 | 250 | 380/50 or Customized | Inverter | DN100 | 5400 | 3600 | 2150 | 2150 |
| 8 | 116 | 1774 | 50.2 | ||||||||||
| 10 | 145 | 1590 | 45.0 | ||||||||||
| 12 | 172 | 1413 | 40.0 | ||||||||||
| WBS315 | 7 | 100 | 2297 | 65.0 | 430 | 315 | 380/50 or Customized | Inverter | DN125 | 7600 | 3800 | 2150 | 2150 |
| 8 | 116 | 2155 | 61.0 | ||||||||||
| 10 | 145 | 1873 | 53.0 | ||||||||||
| 12 | 172 | 1661 | 47.0 | ||||||||||
| WBS355 | 7 | 100 | 2756 | 78.0 | 480 | 355 | 380/50 or Customized | Inverter | DN125 | 8200 | 3800 | 2150 | 2150 |
| 8 | 116 | 2703 | 76.5 | ||||||||||
| 10 | 145 | 2473 | 70.0 | ||||||||||
| 12 | 172 | 2297 | 65.0 | ||||||||||
High-volume air where pressure must be held at the top of the range.
Consistent high-pressure air for the blow station.
Steady pressure and dew point at the cutting head.
Process air where efficiency over long running hours matters.
Industrial coating lines running continuously.
High-pressure supply for tyre shops.
Pressure testing and pigging support.
Continuous cleaning duty.
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.
The air is compressed in two steps with intercooling between them. That lowers the compression ratio per stage and the discharge temperature, which raises efficiency and extends the life of the airend and the oil.
It pays back on machines that run loaded for long periods, and on installations where the pressure is at the top of the range. On intermittent light duty the difference is smaller.
Yes. The inverter option appears in the specification table and combines well with the two-stage airend on part-load duties.
Same consumables as a single-stage screw machine — intake filter, oil filter, separator element and oil — on the hours given in the manual.
Tell us your requirements and our sales team will reply within 24 hours.
