Company Introduction
Founded in 2006, Zhejiang Zhongyang Screw Manufacturing Co., Ltd. has grown into a trusted leader in the design, manufacturing, rebuilding, and supply of high-performance screws, barrels, and assembly parts for plastic and rubber machinery.
With nearly two decades of expertise, we have established ourselves as a reliable partner to industry giants across the globe.
Why Global Partners Choose Zhongyang:
✅ Proven Excellence – Strategic partner to industry giants like Jwell and Krauss Maffei China , with products deployed in 43+ countries across diverse applications.
✅ Industry Expertise – From R&D to production, we offer customized designs and OEM services tailored to high-volume and high-quality production needs.
✅ Advanced Manufacturing – 50,000㎡ facility , cutting-edge equipments with the latest technologies, ISO9001:2015-certified processes,and stringent QC ensure components outperform industry standards.
✅ Engineering-Driven Innovation – Continuous R&D investments to solve complex extrusion and injection molding challenges.
At Zhejiang Zhongyang, we are committed to delivering tailored solutions that help our clients achieve operational excellence, improve efficiency, and drive growth. Whether you're looking for high-quality replacement parts or custom-engineered solutions, we're here to support your business every step of the way.
Products and Applications
Our Product
EXTRUSION SINGLE SCREW AND BARREL
INJECTION SINGLE SCREW AND BARREL
CONICAL TWIN SCREW AND BARREL
PARALLEL TWIN SCREW AND BARREL
BIMETALLIC SCREW AND BARREL
SINGLE SCREW AND BARREL FOR RUBBER MACHINE
SCREW ELEMENT AND SEGMENTED BARREL
PLANETARY SCREWS AND BARREL
Product Application
Doors
Pipe
Profiles
Sheet
Granules
SPC Flooring
Automotive industry
Wire and cable
Construction industry
Film
Polyester fibre
Petroleum
Rubber/plastic
Factory Tour
Main Production Equipments
12 Units of CNC Machining Center
3 Units of Vertical Grinding Machines - Unique process
2 PTA equipments + 2 Centrifugal Casting equipments
Cutting-Edge In-House Nitriding Technology
Large-Scale Deep Hole Drilling Machines
Thread Milling Machines
Quality Assurance
Quality is built into every stage of our manufacturing process - from raw material selection to final inspection. Operating under a strict quality management system, we conduct comprehensive dimensional, hardness, and metallurgical testing to ensure each product meets design and performance requirements.
This systematic approach ensures consistent precision, durability, and stable performance throughout the product's service life.
Global Experiences
We entered international markets since 2008.We have extensive experience serving international customers with diverse processing needs.
Company Honors & Certifications
Zhongyang places great importance on standardized management, product quality, and technological innovation. Over the years,we have obtained multiple certifications and honors that reflect our commitment to reliable manufacturing and continuous improvement.
Value- Added Services
Technical consulting
With our extensive experience in plastic processing machines, we are capable of offering professional advice to customers and helping them solve technical problems.
On-site inspection and measuring
We can send engineers to your plant to inspect the screw and barrel thoroughly for wear, cracks, straightness, and concentricity. A detailed report with all the conclusions will be submitted to you, together with the recommended remedial actions if any. Our engineers can also help you measure the sizes of the screw and barrel and make the complete drawings.
Customized services
Our engineers can help customers customize and design screws and barrels to optimize product quality and capacity according to their processing application.
One-stop integrated sourcing
Many customers trust us and order other accessories and equipment, and we are happy to help.