With over 25 years' development, Ningbo Jinyi Precision Machinery Co., Ltd is now one of Chinese largest companies specialized in manufacturing Screws, Barrels & Tie Bars. With our 5 manufacturing factories based on Ningbo & Zhoushan, JINYI commits to designing and supplying Screw Barrel for all kinds of Plastics and Rubber Machinery.

JINYI, Focus on Precise Machining, While pay attention to skilled personnel training, we also imported series of advanced equipments, such as CNC Machining Center, CNC Turning Machine, Inner Hole Grinding Machine, 13 Meters Deep Hole Boring Machine, NC drilling machine, Nitriding Furnace Computer Control System, Centrifugal Casting Furnace, PTA Bimetallic Spraying Equipment, Gear Milling Machine and NC Turning Machines.

At the same time, JINYI continues to improve Quality Control System, Through precise inspection while every step of the production, We dedicated to provide products to our customers for fast & convenient working. With our excellent quality, we already established long term cooperation with many well-known customers in both domestic and foreign countries. First in our field to implement the ISO9001 & SGS Certification.

Talent is the inexhaustible force for Enterprise development, More than 20 Years' professional experience has formed our JINYI technical team with leading technology, we can not only supply product with sample product & OEM drawings, but also can recommend the best solutions as per the special needs of customers.

To meet the growing quality requirement of customers, JINYI developed JYK Series Bimetallic Barrels and JYG Series ultra wear resistant screws, Even for running plastics with 60% Glass Fiber, we can also provide 2 Years Warranty, which has won wide recognition from domestic and foreign customers.