Screw Tip

As a key front-end component of co-rotating parallel twin-screw extruders, the screw tip realizes mechanical locking and melt flow guiding & pressure stabilization; proper selection, standardized assembly and maintenance help stabilize product quality, protect screw assemblies and cut long-term operation costs.

• Mechanical Locking Principle:The screw tip is mounted on the shaft with reverse thread. Axial melt thrust produces self-locking force to clamp screw elements and kneading blocks against shifting. End-face sealing prevents melt intrusion into spline gaps.
• Fluid Process Principle:After melt reaches the tip, spiral flow converts to steady axial flow. The annular gap between tip and barrel throttles and stabilizes pressure. Streamlined profile reduces stagnant zones. Distributive-type tips split and recombine melt for better homogenization.

• Stabilize Product Quality: It regulates material flow and melt pressure to lower black specks, color difference and uneven pellets. Improper selection or wear leads to material degradation and defective products.
• Ensure Safe Equipment Operation:Multi-tooth meshing distributes load evenly without stress concentration, ensuring synchronous screw rotation under high torque.
• Optimize Long-Term Production Cost:High-quality wear-resistant screw tips feature longer service life and less downtime for replacement, suitable for high-temperature and highly-filled working conditions with better long-term economy.

• Ensure tight fit between screw tip and front element during installation to avoid melt leakage.
• Avoid overloading. Regularly check tightening condition to reduce abnormal wear.
• Disassemble and clean regularly to remove carbon deposits and stagnant material.

• Only focusing on purchase price while ignoring material and precision, resulting in higher maintenance cost.
• Random selection of tip structure causes material stagnation and degradation due to incompatibility.
• Poor assembly and long-term lack of cleaning lead to screw seizure and defective products.

• How to maintain screw tips? 

 Clean regularly, apply proper lubrication if needed, remove carbon deposits timely to extend service life.

• How to select suitable screw tip? 

Choose structure and surface treatment based on processed material, process temperature and mixing requirements.

• How to slow down rapid wear? 

Keep proper tightening status, prohibit overload operation and conduct routine inspection.

• 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