Guangzhou Tianfan Machinery Co., Ltd. Quality Control

Strict Full-Cycle Quality Control System

1. Raw Material Incoming Inspection

   All raw materials including metal blanks, rubber components, electronic chips and filter paper are strictly checked upon arrival. Our QC team verifies material hardness, density, corrosion resistance and raw material certifications. Unqualified materials will be rejected directly to eliminate quality risks from the source.

   
   
2. In-Line Production Inspection

   During machining, assembly and molding procedures, professional inspectors conduct random sampling and fixed-point checking on the production line at regular intervals. We check dimensional accuracy, assembly tightness and structural stability in real time, correcting abnormal processing problems immediately to avoid defective semi-finished products flowing into the next working procedure

   
   
3. Finished Product Comprehensive Testing

   All finished components must undergo professional performance tests before being stored: plastic raw materials undergo folding tests, cab accessories undergo durability simulation tests, and all filters undergo filtration efficiency tests. Only products that pass all performance standards can be marked as qualified and stored for future use.

   
   
4. Final Pre-Shipment Inspection

   Before packing and delivery, our QC staff recheck product appearance, specifications, compatibility model numbers, quantity and packaging integrity one last time. We also conduct random spot checks for bulk orders. Every batch has inspection records for traceability, greatly lowering return and after-sales issues caused by quality problems for overseas buyers.