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Heavy-Duty Large Bore Screw And Barrel

For large-scale industrial extrusion, size and strength are the only metrics that matter. Our Heavy-Duty Large Bore Screw and Barrel assemblies are engineered for massive throughput applications, such as high-voltage cable sheathing and large-diameter pipe production. We utilize a specialized alloy steel forging process to ensure the core of these massive components remains tough while the nitrided surface provides the HV900+ hardness required to handle tons of material per hour

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Product Introduction

Product Description

For large-scale industrial extrusion, size and strength are the only metrics that matter. Our Heavy-Duty Large Bore Screw and Barrel assemblies are engineered for massive throughput applications, such as high-voltage cable sheathing and large-diameter pipe production. We utilize a specialized alloy steel forging process to ensure the core of these massive components remains tough while the nitrided surface provides the HV900+ hardness required to handle tons of material per hour. In our Zhoushan facility, we have invested in deep-hole drilling and large-scale lathes specifically to handle the "Heavy-Duty" requirements of our global petrochemical and infrastructure clients.

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The Heavy-Duty Large Bore Screw and Barrel set is a successful case study in metallurgical stability. We have optimized the screw flights to manage the immense torque generated during large-scale plasticization, preventing material stagnation and ensuring a uniform melt. Despite their size, we maintain a clearance error of less than 0.02mm, ensuring that energy efficiency is maximized and material leakage is eliminated. Choosing our Heavy-Duty Large Bore Screw and Barrel means partnering with a source factory that has decades of experience and a repeat cooperation rate that reflects the durability and quality of our heavy engineering.

Specifications

Diameter Range	Specialized large-bore capability (up to 300mm+)
Material	Forged 38CrMoAlA with deep-stage nitriding
Throughput Stability	Precision engineered for massive hourly output
Wear Protection	Bimetallic coating options for high-filler compounds
Precision	High-tolerance internal grinding for large cylinders

Application Areas

Large diameter HDPE pipe production, high-voltage power cable sheathing (up to 500kV), and large-scale plastic recycling/pelletizing.

Customization Capability

We offer tailored screw geometries for high-output industrial scenarios. Our R&D team works closely with you to define the cooling and heating requirements of these large-scale assemblies to ensure thermal stability.

Factory Strength & Service

We hold certifications as a (Zhejiang Provincial Technology-Based SME). We provide on-site installation and commissioning, ensuring that even our largest equipment operates normally within 24 hours of arrival.