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HK Hydraulic Piston Compressor

Key Benefits

The compact size hydraulic compressor is several times smaller than a huge diesel-powered piston compressor with equivalent output. It is ideal in mobile use with drilling rigs, tractors and excavators.

  • Always ready for use
  • Easy to use
  • Saves time, space and resources
  • Easy installation on all hydraulic systems
  • Position-free installation (only in HKOF450 oil-free models, available in March 2023)
  • Position-free use (only in HKOF450 oil-free models, available in March 2023)
  • Position-free transportation (only in HKOF450 oil-free models, available in March 2023)
  • Always on-board since integrated into the machine
  • No transportation needed
  • No secondary engine
  • Low maintenance
  • Small carbon footprint
  • Two-year or 2000 hour warranty


In addition to the output from 450 l/min up to 1000 l/min, the hydraulic compressor has useful features.

  • Up to 12 bar air pressure
  • HKOF450 oil-free models (available in March 2023)
  • Compact all-in-one structure
  • Air reservoir in the frame
  • Excellent power-to-size ratio
  • Light weight
  • Air cooled
  • Easy installation
  • Low operating sound due to silent hydraulic motor
  • Durable structure paint
  • Additional hose reel available
  • Additional high-performance filters for extreme conditions
  • Additional separate air container available


  • Powering pneumatic tools
  • Repair works
  • Cleaning
  • Pneumatic brake systems

How Does the Hydraulic Piston Compressor Work?

The hydraulic compressor utilizes a machine’s, vehicle’s or vessel’s hydraulic system as power source to produce air flow.

  1. Hydraulic oil flow is led to the hydraulic compressor’s integrated hydraulic motor through the pressure line
  2. The hydraulic compressor converts the hydraulic oil flow and pressure into compressed air
  3. The hydraulic oil is led back to carrier machine’s hydraulic oil tank through the return line
  4. The compressor’s piston creates air pressure that is led to the reservoir frame where it is utilized e.g. for powering pneumatic tools.

Suitable machinery


Mining Machines

Drilling & Foundation Equipment


Compact Loaders

Aerial Working Platforms

Tractors & Agricultural Machinery

Forestry Machines & Harvesters

Vans, Pick-up Trucks & Service Vehicles

Trucks, Concrete Trucks & Mobile Cranes

Fire Engines & Rescue Vehicles

Railway Vehicles

Boats & Ships

Used in industries

Construction and Earthmoving

Drilling, Mining and Quarrying

Demolition and Recycling

Transportation, Shipping and Aviation

Environment and Infrastructure

Service and Maintenance

Property Management

Forestry, Agriculture and Fur Farming


Firefighting, Rescue and Military

Special vehicles and Process Industry

Offshore and subsea

Technical details

Compressed air (ISO 1217) max.l / min (cfm)450 (16)1000 (36)
Pressure (psi)8 (116)12 (174)
Flow at max. outputl / min (U.S. gpm)14 (3.7)35 (9.3)
Pressure (psi)210 (3000)230 (3300)
Lengthmm (in)530 (20.9)725 (28.5)
Widthmm (in)430 (16.9)490 (19.2)
Heightmm (in)460 (18.1)600 (23.6)
Weightkg (lbs)35 (77.2)80 (176.4)


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