We appreciate the opportunity to offer our services for the rewinding/repairing of your Atlas Copco screw air compressor motor. Our technical team specializes in AC induction motors used in industrial air compressors and follows international standards (IEC/NEMA) to ensure the motor returns to its original efficiency and performance.

Our repair/rewinding service will include:

A. Preliminary Inspection & Testing

1. Visual inspection of motor exterior, terminal box, and mounting

2. Electrical testing of windings (Insulation Resistance – Megger Test, Winding Resistance Test, Surge Test)

3. Rotor bar inspection and shaft alignment check

B. Dismantling & Cleaning

1. Complete dismantling of the motor

2. Cleaning of stator core and rotor using chemical degreasing and hot water wash

3. Bearing removal and bearing housing inspection

C. Rewinding Process

1. Removal of old winding

2. Stator slot cleaning and varnish residue removal

3. Insertion of new high-grade copper winding wire (Class F/H insulation)

4. Application of slot liners and insulation materials (Nomex/Mylar)

5. Coil formation, lacing, and placement in slots

6. Impregnation with high-temperature epoxy varnish (Vacuum Pressure Impregnation if applicable)

7. Oven curing at controlled temperature

D. Assembly & Replacement

1. Rotor balancing and bearing replacement (SKF/FAG)

2. Reassembly of motor with new seals and gaskets

3. Shaft alignment check and coupling fitment

E. Final Testing

1. No-load running test and vibration analysis

2. Temperature rise monitoring

3. Load test (if required)

4. Final inspection report submission

Materials & Standards

• Winding Wire: Super enamelled copper (Class F/H, 200°C rating)

• Insulation Materials: OEM-grade Nomex, Mylar, Class F/H varnish

• Bearings: SKF / FAG / OEM-specified

• All work as per IEC 60034 and OEM guidelines

Warranty

We offer 12 months warranty on rewinding workmanship and materials used, excluding damage due to electrical faults or mechanical mishandling.