Repair and overhaul of industrial compressors
We overhaul industrial compressors — from the mechanical section to rewinding the driving electric motor. Reciprocating, screw and oil-free technologies alike.
Compressed air is one of the most costly production utilities — a compressor going down often blocks production for an entire plant. That is why compressor repair means more than replacing the faulty part: we inspect the whole machine, assessing piston rings, valves, screw rotors, bearings, the oil system and the driving electric motor, so that the overhauled machine not only starts up but also runs economically over the long term.
For reciprocating compressors, overhauling the cylinder liner, piston rings and valves is critical. For screw compressors, precise repair of the screw rotor and timing gears, along with bearing replacement, forms the backbone of the overhaul. For oil-free technology — used in food and pharmaceutical applications — the condition of coatings and seals, plus strict cleanliness standards, are key.
The driving electric motor is rewound and overhauled in the same workshop as the mechanical repair. The overhauled compressor is measured on our test bench — for delivered air volume, final pressure, temperature and current draw. This gives the customer an accurate picture of the machine's operating parameters after the overhaul.
Why Aselec?
What we do
- Overhaul of reciprocating compressors
- Repair of screw compressors
- Servicing of oil-free compressors
- Winding and repair of the driving electric motor
Typical applications
- →Industrial compressed air systems
- →Gas industry compressors
- →Food and pharmaceutical (oil-free) systems
How we work
- 1DiagnosticsPressure measurement, mechanical condition assessment.
- 2RepairParts replacement, mechanical and electrical overhaul.
- 3Test-bench trialPerformance measurement under load.
Frequently asked questions
What size compressors do you repair?+
From small workshop machines to large industrial compressors — with no power limit.
Do you also service oil-free compressors?+
Yes, we also repair oil-free compressors for food and pharmaceutical applications — with cleanliness standards, coating and seal replacement suited to the technology.
Is screw rotor overhaul possible?+
Precise repair of the screw rotor and timing gears is the backbone of screw compressor overhaul — restoring bearings, seals and rotor geometry.
How long does a compressor overhaul take?+
It depends on the machine type and condition. For an average industrial screw compressor, 2–4 weeks is a realistic timeframe; for urgent cases we can also help with a replacement unit.