For a long time, overseas plastic machinery buyers hold doubts about the stability and service life of Chinese-made screw barrels. In recent years, leading manufacturers represented by NINGBO JIACHENG INDUSTRY CO., LIMITED have reversed the market stereotype through upgraded production equipment and full-process strict quality control systems.
JIACHENG has fully equipped its production workshop with complete precision CNC lathes, professional nitriding furnaces and automatic bimetallic surfacing welding equipment. All machining processes are digitally controlled to guarantee micron-level dimensional accuracy of screw elements and barrel inner holes. Every finished screw barrel must pass multi-item testing before shipment, covering wear resistance testing, corrosion resistance inspection and size tolerance calibration. Unqualified semi-finished products will be eliminated directly during processing to avoid defective parts flowing to production lines of overseas customers.
According to Emily, sales manager of JIACHENG, many clients from the Middle East and Africa previously replaced screw barrels every 3–6 months due to poor quality of cheap spare parts. After switching to JIACHENG nitrided and bimetallic screw barrels, their replacement cycle extends to more than 1 year, cutting overall production operation costs significantly.
The company’s stable global customer network covers Europe, Southeast Asia, Africa and South America. Many long-term cooperative machinery manufacturers have listed JIACHENG as their fixed supporting screw barrel supplier. Industry insiders mention that complete quality control standards and advanced manufacturing hardware are the core strengths that help Chinese plastic machinery spare parts brands gain continuous trust from international buyers.