Each reciprocating compressor remanufactured by ACES is assigned a unique identification number stamped onto the compressor body casting. This number remains with the compressor throughout its operational life and allows the compressor history to be recalled from our internal database when required.

Our reciprocating compressor remanufacturing process begins with draining the oil and completely stripping down the compressor for detailed inspection. All compressor components are inspected and measured for size and tolerance using precision measuring equipment. Where suitable, crankshafts may be reground and cylinder bores re-bored in-house as part of the compressor overhaul process. Components within the manufacturer’s specified tolerances are reused, while worn or damaged compressor parts are replaced. Valve reeds and piston rings are replaced regardless of condition, and all valve plates are surface ground.

Stator windings are removed and sent to our electrical rewind department for testing or rewinding where required. Each winding undergoes flash testing, resistance readings, and full load transformer testing before approval.

All compressor castings including bodies, heads, and end covers are thoroughly cleaned before the reciprocating compressor is reassembled by our experienced engineering team. Electrical bench testing and inspection checks are carried out throughout every stage of assembly.

Once assembled, the remanufactured reciprocating compressor is transferred to our purpose-built Test Centre where it undergoes refrigeration compressor testing both open and under load conditions. Testing includes amp readings, oil pressure testing, oil return checks, unloading operation checks, restart testing, and pump-down testing.

Following successful testing, the compressor is charged with oxygen-free dry nitrogen (OFN), leak tested, dehydrated, evacuated, and prepared for dispatch.