PP Danpla Sheet Extrusion Machine – Handern Series

Leading Manufacturer of High-Performance PP Danpla Sheet Extrusion Machines

The PP danpla sheet extrusion machine from Handern represents the pinnacle of hollow sheet production technology. As the first Chinese company to develop and globally supply this equipment, Handern has captured over 60% of the worldwide market for PP danpla sheet extrusion lines, serving customers in more than 80 countries.

This advanced PP danpla sheet extrusion machine is specifically engineered to manufacture high-quality double-wall polypropylene hollow sheets – commonly known as Danpla, Coroplast, Polyflute, hollow grid sheet, multiwall sheet, or twin-wall sheets. With production widths reaching up to 3600mm and thicknesses from 2mm to 18mm, our PP danpla sheet extrusion equipment delivers exceptional flatness, precise dimensional control, and outstanding production efficiency.

Handern holds the #1 position globally in PP danpla sheet extrusion machine sales for over a decade – a testament to our quality, reliability, and continuous innovation.

World-First: One-Step Hollow Sheet Manufacturing Technology

Handern is the global pioneer of one-step hollow sheet manufacturing technology, eliminating the traditional two-step process of "pelletizing first, then sheet forming." Our proprietary technology enables direct powder-to-sheet forming without pre-pelletizing, revolutionizing the industry.

Key Technological Breakthroughs:

• Developed in collaboration with Academician Qu Jiping's team from South China University of Technology – the only academician in China's plastic machinery field
• Patented intensified mixing twin-rotor extruder achieves uniform dispersion of high-content inorganic fillers in polymer matrices through vibration shear-stretch rheological synergy
• Processing energy consumption reduced by 50%, production efficiency increased by over 50%
• Single-machine output capacity up to 600 kg/h
• Technology certified by China Machinery Industry Federation as "world-first, internationally leading"

Key Technical Parameters – Handern PP Danpla Sheet Extrusion Line Models

Note: All models support single-layer, AB-type, and ABA-type multi-layer sheet production. Custom widths and thicknesses are available on request.

Main Components of the PP Danpla Sheet Extrusion Production Line

A complete PP danpla sheet extrusion line from Handern integrates the following precision-engineered modules:

1. High-Efficiency Single-Screw Extruder – Built with 38CrMoAlA nitrided steel, featuring proprietary screw geometry for superior melting and homogenization
2. Hydraulic Screen Changer – Enables continuous filtration without interrupting the PP danpla sheet extrusion process
3. Precision T-Die – Manufactured with high-grade tool steel and optimized flow channels for uniform wall thickness
4. Multi-Zone Vacuum Calibration Table – Independent cooling zones for rapid and precise forming of the hollow structure
5. Servo-Driven Haul-off Unit – Consistent traction force to maintain sheet thickness accuracy
6. Computerized Cross-Cutter – Accurate length cutting with automatic stacking
7. Optional Winder / Stacker – Flexible configurations for sheet winding or stacking

Optional upgrades: Corona treatment unit (enhances printability), edge trimming system, annealing furnace, anti-static/UV/flame-retardant additive feeders.