100% Quality Inspection
Insisting on Quality is Nan Yun'sTradition
As the screw and barrel are critical parts for an extruding machine and injection molding machine , they dramatically affect the machine performance and product quality. Therefore, Nan Yun is dedicated to providing the best possible quality of screws and barrels for our customers. Nan Yun's quality control department employs high precision inspection instruments to conduct incoming inspections, on-process inspections and final product inspections . What we do is to guarantee the highest level of quality for each screw and barrel from Nan Yun .Furthermore, we have been fully recognized by numerous world-famous companies, which offer an approval of Nan Yun's efforts in quality control.

Microscopic Hardness Tester

Surface Roughness Inspection

Test sample cutting, polishing and
inserting

Ultrasonic Crack Test Incoming
Material Inspection

Plated Thickness Inspection

Surface Hardness Inspection

Screw Outside Diameter Inspection

Inside Diameter Inspeciton