We will perform complete rewinding and/or repairing services for the electric motor of your Kaishan screw air compressor, following OEM specifications and industry best practices.

Work process will include:

1. Initial Inspection & Testing

   • Insulation resistance test with Megger.

   • Bearing condition check.

   • Rotor and stator visual inspection.

   • Winding resistance measurement.

2. Motor Dismantling

   • Safe removal of rotor, stator, and bearings.

   • Detailed documentation of winding layout and technical parameters.

3. Rewinding Process

   • Removal of old winding and cleaning of the core.

   • Use of new high-grade Class H enamel copper wire.

   • Installation of heat-resistant insulation materials.

   • Slot liner, wedge, and coil binding.

   • Vacuum pressure impregnation with Class H varnish.

4. Repair Works (If Required)

   • Rotor dynamic balancing.

   • Shaft repair or replacement.

   • Bearing housing re-machining.

   • Bearing replacement (SKF/NTN or equivalent).

5. Final Assembly & Testing

   • Rotor dynamic balancing verification.

   • High voltage test (Hi-Pot).

   • No-load run test.

   • Vibration and noise check.

   • Load test if applicable.

Deliverables

• Fully serviced/repaired motor meeting Kaishan OEM performance standards.

• Test report with pre- and post-repair measurements.

• Six (6) months service warranty for rewinding work (conditions apply).

Spare Parts & Materials

• Class H high-grade copper winding wire.

• Nomex/Mica insulation materials.

• OEM or equivalent bearings.

• Electrical varnish for impregnation.