Xcalibur Replacement Barrel & Screw
Material Changeover & Contamination Prevention
Sequential processing of diverse polymer systems requires rigorous contamination control protocols to maintain material purity and performance characteristics. Barrel rotation capability enables rapid material changeovers while ensuring complete purging between processing sessions.
Critical Benefits for Professional Applications:
- Zero cross-contamination between high-performance materials
- Reduced downtime during material transitions
- Consistent material properties for aerospace and automotive specifications
- Batch-to-batch repeatability essential for quality certification
Target Applications:
- Aerospace composite prepreg materials requiring pristine processing conditions
- Medical-grade polymers demanding pharmaceutical-level cleanliness
- High-performance automotive composites with strict material traceability
- Marine applications requiring corrosion-resistant material integrity
Precision-Engineered Screw Design
Technical Specifications
- Overall Length: 400mm (300mm effective processing length)
- Diameter: 22mm
- Channel Depth: 6mm progressive tapering
- Flight Angle: 23° (optimized for material transport efficiency)
Three-Stage Progressive Design
Feed Zone (0-130mm):
- Deep channel depth for consistent material intake
- Optimized for various pellet geometries and bulk densities
- Temperature-controlled feeding for heat-sensitive materials
Compression Zone (130-200mm):
- Compression Ratio: 1.36 (30cm length / 22mm diameter)
- Controlled shear heating for thermal management
Metering Zone (200-300mm):
- Uniform material flow and pressure development
- Final mixing and homogenization
- Consistent output for dimensional stabilit
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High-Performance Material Capability
Engineered for Demanding Applications:
- Carbon Fiber Composites – Aerospace structural components
- Metal-Filled Polymers – Automotive heat dissipation applications
- PEEK/PEI Systems – Oil & gas downhole equipment
- Ceramic-Loaded Materials – Marine propulsion components
Abrasion Resistance Features:
- Hardened screw surfaces for extended service life
- Wear-resistant coatings for metal composite processing
- Replaceable flight edges for maintenance efficiency
Advanced Mechanical Engineering
Thrust Bearing System
Deep Groove Thrust Bearing Assembly manages axial loads and prevents screw displacement under high-pressure conditions:
- Load Capacity: Handles extreme back-pressure from high-viscosity materials
- Precision Alignment: Maintains consistent screw positioning for uniform processing
- Durability: Extended service life under continuous high-stress operation
- Temperature Stability: Maintains performance across processing temperature ranges
Optimized Processing Parameters
Length-to-Diameter Ratio: 18:1
- Comprehensive Mixing: Ensures complete material homogenization
- Controlled Residence Time: Prevents thermal degradation of sensitive polymers
- Pressure Development: Adequate for high-viscosity engineering materials
- Energy Efficiency: Balanced mixing without excessive power consumption
Flight Angle Optimization: 23°
- Material Transport Efficiency: Optimal conveying capacity for various viscosities
- Mixing Intensity Balance: Sufficient shear without material degradation
- Pressure Generation: Adequate for consistent material flow
- Versatility: Effective across diverse polymer systems
Quality Assurance for Critical Applications
Dimensional Consistency:
- Precision-ground surfaces ensure uniform material flow
- Tight manufacturing tolerances for repeatable processing
- Statistical process control for aerospace/automotive quality standards
Material Traceability:
- Batch tracking capability for regulatory compliance
- Process parameter logging for quality documentation
- Contamination-free processing for medical applications
Performance Validation:
- Extensive testing with aerospace-grade materials
- Automotive OEM approval processes
- Marine environment durability certification
Xcalibur Replacement Barrel & Screw
£995.00
