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Screw Air Compressor- Electric 5.5HP 21 CFM - 415V


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Senator ES4 Electric Rotary Screw Air Compressors- 5.5HP, 21CMF

The ES Series from Senator comprises a range of electric rotary screw air compressor sets that are integrated, tank-mounted packages supplied ready for use. Ideally suited for small-to-medium industrial applications with heavy compressed air demand and working pressure.

ES4 Screw Air Compressor Specifications

  • Motor Power - 4 kW (5.5 hp)
  • Free Air Delivery - 0.60 m³/min (21 cfm)
  • Working Pressure - 8 bar (116 psi)
  • Optional Pressures - 7-10 bar (102-145 psi)
  • Tank Volume - 250 Litres
  • Noise Level @ 1 m - 62 dB(A)
  • Air End Speed - 1,954 rpm
  • Current Draw - 9.6 Amps
  • Air Outlet  BSP ¾” F

Dimensions & Weight- Complete Set

  • Length (m) - 1330MM
  • Width (m) - 940MM
  • Height (m) - 1430MM
  •  Weight (kg) - 362 KG


  • Standard 12 month no fuss warranty. We have full time mechanics providing support and we carry all spare parts.


We can ship via weight just enter your postcode when your checking out- Australia Wide. Alternatively you can specify your own freight company. Or Pick up from our Perth Office

Contact Us

It's important to ensure you select the right air compressor for your needs. So if you have any questions or need some help please do not hesitate to call us on 1300 998 647

Compressor Servicing

Blue Diamond Machinery provides comprehensive range of air compressor servicing, preventative maintenance and compressor repair services across Perth, WA. With over 25 years of experience servicing all types of compressors our service team ensure minimum downtime, quality and reliability on all compressor service and repair work.

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