Features of 2-Layer Stretch Film Extrusion Machine
This high-performance stretch film extrusion machine is engineered for the continuous production of premium LLDPE stretch film. Utilizing advanced dual-layer co-extrusion technology, it overcomes the limitations of single-layer systems by optimizing film clarity, puncture resistance, and load-holding strength within a single structure.
Dual-Layer Co-Extrusion Technology
The machine features a specialized co-extrusion process that allows for the strategic combination of two polymer layers. This technology enables the production of film with a high-clarity exterior for better aesthetics and a high-tack, high-strength interior layer for superior pallet stability.
Nitrided 38CrMoAlA Alloy Steel Components
The heart of the extrusion line consists of a screw and barrel assembly crafted from 38CrMoAlA alloy steel.
- Precision Nitriding: The steel undergoes a specialized nitriding treatment to create an ultra-hard, low-friction surface.
- Wear Resistance: This treatment provides exceptional protection against corrosion and abrasive wear from polymer melts.
- Long-Term Stability: The durable assembly ensures consistent melt pressure and dimensional stability during high-speed, continuous operation.
Advanced Cycle Water Cooling System
To ensure superior film quality, the system integrates a high-efficiency cycle water cooling mechanism.
- Optimal Transparency: Precise temperature control during the cooling phase maximizes film crystallinity and clarity.
- Enhanced Tensile Strength: Uniform cooling directly improves the tensile strength and tear resistance of the final PE stretch film.
- Production Stability: The closed-loop cooling system maintains thermal equilibrium, preventing film defects and ensuring high-speed output.
Technical Performance Summary
- Material Compatibility: Optimized for high-grade LLDPE and metallocene resins.
- Film Structure: 2-layer co-extrusion for enhanced mechanical properties.
- Durability: High-grade nitrided alloy steel for extended service life and reduced maintenance.
- Efficiency: High throughput with consistent thickness control and transparency.
