Quality Control & Inspection Services

Protect your machinery investment with on-site technical inspections carried out by certified mechanics and quality control officers in Shandong and across all Chinese manufacturing hubs.

Why Request On-Site Quality Control?

Buying heavy commercial vehicles or spare parts remotely without physical verification exposes buyers to spec mismatches, counterfeit parts, and unannounced factory substitutions. Our local inspectors serve as your eyes and ears on the factory floor.

Industry Abbreviations & Inspection Terms Explained

Our inspection procedures adhere strictly to international automotive quality management standards:

AbbreviationFull TermScope & Description
QCQuality ControlGeneral inspection process monitoring vehicle manufacturing and assembly standards.
PSIPre-Shipment InspectionFinal comprehensive audit on finished vehicles and spare parts before factory release.
PDIPre-Delivery InspectionOperational mechanics check: fluid levels, battery voltage, brake pressure, electrical diagnostic.
CLIContainer Loading InspectionSupervision during loading of spare parts, engines, or cabin components into sea shipping containers.
VIN AuditVehicle Identification Number AuditVerification of stamped chassis numbers, engine block codes, and official registration documents.
OEM AuditOriginal Equipment Manufacturer AuditEnsuring genuine Sinotruk, Weichai, Fast Gear, and Wabco components are installed.

Our Multi-Point Mechanic Checklist

  • Chassis & Frame Alignment: Measuring steel thickness, beam weld quality, and suspension leaf spring count.
  • Engine & Powertrain Test: Cold and warm engine startup, oil pressure checks, noise vibration testing, and turbo boost verification.
  • Hydraulics & Dump Body: Full elevation test under pressure for hydraulic cylinders (Hyva system audit).
  • Braking & Pneumatics: Dual-circuit air pressure test, ABS sensor verification, brake shoe thickness.
  • Cabin & Electrical: Instrument cluster diagnostics, HVAC cooling, headlamps, and battery load testing.

Request Quality Control & Inspection Service

Contact our chief inspection manager directly via Email or WhatsApp for immediate inspector dispatch across Shandong and all factory hubs in China.