HK 425-90 Pro two-cylinder piston compressor 10 bar 3 HP/2.2 kW 400V 317 l/min 90 l
The HK 425-90 Pro is a professional piston compressor for heavy use in workshops, service businesses and smaller industrial plants. Its 3 HP (2.2 kW) motor, three-phase 400V supply and large 90 l tank give high output and reliability in demanding tasks. Fitted with the K17C compressor pump, it runs steadily and lasts a long time under heavy use.
K17C compressor pump: durability and output
- K17C compressor pump: Made in the European Union, the K17C pump is highly efficient at an optimised speed, which extends its service life and reduces component wear.
- Optimised speed: A speed of 1250 rpm keeps the compressor running steadily, reduces the risk of overheating and allows longer compression cycles.
- Advanced cooling: Enlarged intercoolers and aftercoolers effectively lower the temperature of the compressed air, and a pulley with cooling vanes supports the cooling system.
- Durable components: Cast-iron cylinders and a reinforced cylinder head provide resistance to heavy use and extend the life of the unit.
Advantages of the HK 425-90 Pro compressor
- Ready to use: The compressor comes with a Condor pressure switch with thermal protection and a power cable with plug, so you can connect it quickly and use it right after installation.
- Metal belt guard: The open-structure belt guard allows good cooling airflow, which improves cooling and protects the drive.
- Resistance to high temperatures: A copper delivery pipe assists cooling and keeps the compressor working efficiently even in harsh conditions.
- Noise reduction: A high-efficiency intake filter of innovative design effectively dampens compressor noise for more comfortable work.
Technical specifications
- Motor power: 3 HP / 2.2 kW
- Power supply: 400 V / 50 Hz / 3 phases
- Maximum pressure: 10 bar
- Air delivery: 317 l/min
- Tank capacity: 90 litres
- Noise level: 74 dB(A)
Applications
The HK 425-90 Pro is well suited to running air tools, inflating and light painting work. The three-phase 400V supply means it works best where a permanent connection to a 400V mains is available, which adds to its versatility in industrial and workshop use.
Efficiency and duty cycle
The HK 425-90 Pro is designed for a 50%/50% duty cycle: the compressor runs for 50% of the time and rests for the remaining 50%, which lets the unit cool down. Thanks to the optimised speed and efficient cooling system, the compressor saves on operating costs by reducing energy consumption and noise. Its solid construction ensures a long service life with minimal servicing costs.
Warranty and reliability
The HK 425-90 Pro compressor comes with a 3-year warranty and is built for long, reliable service even under heavy use. It is manufactured in the European Union from high-quality components and runs trouble-free in difficult conditions.















