Changzhou Trustec Company Limited Quality Control

Quality Built into Every Process

At Trustec Motors, quality control is integrated into every stage of production—from incoming materials and process inspection to final testing and shipment approval.

We operate under an ISO 9001:2015 quality management system and apply standardized procedures, traceable records and continuous improvement methods to ensure consistent motor performance and long-term reliability.

1. Incoming Quality Control

Raw materials and purchased components are inspected before entering production, including:

• Silicon steel laminations
• Copper wire
• Bearings
• Shafts and end shields
• Electronic components
• Insulation materials

2. In-Process Inspection

Key production parameters are monitored throughout winding, assembly and testing processes.

Critical inspections include:

• Winding resistance
• Insulation and wiring
• Rotor and shaft assembly
• Bearing installation
• Air gap and mechanical dimensions
• Workmanship inspection

3. Performance Testing

Each motor is tested according to defined specifications before shipment.

Testing may include:

• Voltage and current
• Input and output power
• Speed and rotation direction
• Torque and efficiency
• Noise and vibration
• Insulation resistance
• Dielectric strength
• Temperature rise

4. Final Inspection

Before packing, finished products are checked for:

• Electrical performance
• Appearance and labeling
• Lead wire and connector accuracy
• Shaft dimensions
• Packaging requirements
• Customer-specific specifications

5. Traceability & Improvement

Production and inspection records are maintained for traceability. Quality issues are analyzed through corrective and preventive actions to support continuous improvement.