Modular combined barrel

Modular combined barrel (building-block barrel/Combi Barrel) is standard equipment for co-rotating twin-screw extruders. It is assembled by multiple interchangeable barrel segments connected by tie rods or flanges, including closed barrel, feeding open barrel, vent barrel, side-feeding barrel and liquid injection barrel, configurable freely for diverse compounding processes.

• Standard separate barrel segments with uniform length, each with independent heating & cooling channels and temperature sensor ports.
• Replaceable bimetallic / tungsten carbide wear liner inside every segment.
• Functional barrel modules for feeding, melting, mixing, devolatilization and pressure building.
• Fastening accessories: tie rods, sealing gaskets and locating pins for leak-proof assembly.

• Flexible process matching: Adjust barrel layout and L/D ratio to fit conveying, melting, mixing, venting and reactive extrusion; one extruder for multiple formulas.
• Zoned precise temperature control: Independent thermal circuit for each segment to avoid thermal degradation of heat-sensitive polymers.
• Step-by-step material processing: Arrange segments in sequence to realize main feeding, melting, auxiliary side feeding, degassing and metering.
• Low maintenance cost: Only replace worn single liner or barrel segment instead of the whole barrel, cutting downtime and spare part expense.
• Wide application: Compatible with glass fiber reinforcement, filled masterbatch, biodegradable plastic, plastic recycling and reactive compounding.

• High flexibility and versatility: Interchangeable barrel segments enable one extruder to handle more than ten kinds of material formulas.
• Precise temperature control: Independent heating and cooling circuits for each segment reduce temperature fluctuation and improve product consistency.
• Cost-effective and convenient maintenance: Segments can be disassembled separately; only worn parts need to be replaced individually.
• Easy expansion and upgrade: Venting or side-feeding processes can be added later simply by installing matching open barrel segments.
• Complete wear protection: Each segment is fitted with an independent wear-resistant liner for extended service life under heavy-abrasion working conditions.

• Targeted Material & Process Optimization: Optimize base material formulation and heat treatment processes to improve wear resistance, corrosion resistance and impact resistance
• Custom Production per Drawings & Samples: Precisely manufacture replacement elements perfectly compatible with your equipment
• 100% Full Inspection Before Delivery: Complete dimensional quality inspection with full inspection reports
• 24-Hour Responsive After-Sales Service: Exclusive after-sales channels with 24-hour response time
• Professional Selection & Process Consultation: Technical advice on screw element configuration, material selection and screw arrangement solutions
• Reverse Engineering & Non-Standard Customization: High-precision reverse engineering for obsolete equipment models
• Rapid Prototyping & Small-Batch Trial Production: Support for new solutions to shorten R&D cycles
• Service Life Assessment & Optimization Guidance: Regular product status tracking and wear detection
• Flexible Stock & Delivery Guarantee: Safety stock service for regular spare parts and urgent orders

• Properties: High precision, high quality, long service life, wear-resistant, corrosion-resistant and durable.
• Compatibility: Compatible with most well-known extruders