Five twin barrel screw makers in China to watch in 2026

China’s twin barrel screw makers are gaining ground as extrusion and compounding demand expands, with the broader feed screw barrel market projected to nearly double by 2034. A new roundup spotlights five manufacturers in Zhoushan and Zhejiang that are targeting PVC, recycling, masterbatch and other plastics applications.

Why it matters: - The feed screw barrel market is projected to grow from USD 1.89 billion in 2024 to USD 3.33 billion by 2034, according to Global Insight Services. - China’s twin barrel screw manufacturers are positioning themselves as key suppliers for extrusion, injection molding and compounding equipment. - Procurement teams are weighing supplier precision, material options and after-sales support more heavily as recycled content and lightweight materials gain traction.

What happened: - The roundup identified five reputable twin barrel screw manufacturers in China for 2026. - The list focuses on companies with expertise in screw design, processing technology and customized extrusion solutions. - Zhejiang Guangming Plastics Machinery Co., Ltd. (Guangyou Screw) was highlighted first. - Zhoushan Huaye Plastic Machinery Co., Ltd. was included for conical and parallel twin screw barrels. - Zhejiang Zhongsu Screw Co., Ltd. was included for custom twin barrel screw solutions. - Zhoushan Demaji Industrial Co., Ltd. was included for bimetallic and nitrided barrels. - Zhoushan Nanhaiya Plastic Machinery Co., Ltd. was included for PVC extrusion and pelletizing lines.

The details: - Zhejiang Guangming Plastics Machinery Co., Ltd. was founded in 1992. - The company specializes in high-precision barrels and screws for plastics and rubber machinery. - Zhejiang Guangming operates a 100,000 m² facility. - The company reports annual production capacity of 32,000 units and about 800 staff, including 25 R&D engineers. - Export business accounts for 30% of total sales, with the EU listed as a major market. - Guangyou Screw offers conical twin screw barrels for PVC extrusion in model ranges from Φ25/50 to Φ185/340. - The company also offers parallel twin screw barrels for compounding and pelletizing in model ranges from Φ45 to Φ350. - The components feature a nitrided case depth of 0.45–0.7 mm and nitrided hardness of HV850–1000. - The company lists alloy depth at 0.8–2.0 mm. - Zhejiang Guangming also makes injection molding machine screw and barrel products from Φ20 to Φ300. - The company’s single screw extruder screw and barrel range runs from Φ20 to Φ500. - Zhejiang Guangming uses CNC machining, German-imported inspection technology and digital ERP/MES systems. - Zhoushan Huaye Plastic Machinery Co., Ltd. specializes in twin screw barrels and related components for plastic extrusion and injection molding. - Zhoushan Huaye supplies domestic and international markets. - The company emphasizes cost-effective solutions for PVC pipe and profile extrusion. - Zhejiang Zhongsu Screw Co., Ltd. develops and produces screw barrels for the plastics machinery sector. - Zhejiang Zhongsu’s twin barrel screw offerings include conical and parallel configurations. - The company targets construction materials, packaging and automotive component manufacturing. - Zhejiang Zhongsu emphasizes quality control and custom specifications for OEM buyers. - Zhoushan Demaji Industrial Co., Ltd. manufactures precision screw barrels and extruder components. - The company specializes in bimetallic and nitrided barrels. - Zhoushan Demaji serves plastic recycling, compounding and masterbatch production. - The technical team provides tailored solutions for high-wear applications, including those using abrasive fillers such as calcium carbonate. - Zhoushan Nanhaiya Plastic Machinery Co., Ltd. manufactures twin screw barrels for PVC extrusion and pelletizing lines. - The company emphasizes durability and precision through heat treatment and surface hardening processes. - Its product range includes conical twin screw barrels for pipe and profile extrusion and parallel twin screw barrels for compounding. - The company says its products are aimed at international quality benchmarks. - The global bimetallic barrel and screw market is estimated at USD 2.8 billion in 2025 and is forecast to reach USD 4.7 billion by 2034, according to Dataintelo. - The plastics processing machinery market reached USD 25.9 billion in 2025. - Single-screw extrusion machinery holds about 62% of the extrusion market share. - Chinese manufacturers collectively produce a significant portion of the world’s barrel screws, helped by machining expertise concentrated in the Zhoushan cluster. - Guangyou Screw offers materials including 38CrMoAl, D2, AISI316 and specialty alloys. - The company’s product dimensions cover Φ20 to Φ650 for rubber machine screws and Φ20 to Φ500 for single screws. - Its injection molding screw barrel range covers automotive, electronics and toy manufacturing. - For high wear resistance, Guangyou Screw offers bimetallic linings with centrifugally cast alloy.

Between the lines: - The sourcing message is clear: buyers are moving beyond price and looking for wear resistance, customization and verified machining quality. - The Zhoushan cluster remains a manufacturing advantage because it concentrates tooling, machining and extrusion know-how in one region. - The emphasis on bimetallic barrels and nitriding reflects a market that is increasingly shaped by abrasive materials and recycling feedstocks.

What's next: - Chinese twin barrel screw makers are expected to keep investing in R&D and precision manufacturing as recycled content demand rises. - Companies with larger facilities, digital production systems and broad material options are likely to remain competitive with international buyers. - Buyers will likely continue comparing suppliers on technical specs, service support and production scalability.

The bottom line: - China’s twin barrel screw market is no longer just about volume; it is increasingly about precision, customization and durability for demanding extrusion applications.