HDPE Board Extrusion Machine

Yongte HDPE board extrusion machine is a professional extrusion line for manufacturing high-quality PE sheets. It is widely used for processing LDPE, LLDPE, HDPE and recycled plastic granules. This production line features stable performance, high automation, uniform sheet thickness and smooth surface. It is widely applied in packaging, construction, protection, automotive interior and other industries. 

Main Features 

• Suitable for LDPE, LLDPE, HDPE and recycled PE materials 
• Stable extrusion system ensures high output and low energy consumption 
• High-precision three-roll calender for uniform thickness and smooth surface 
• PLC control system with touch screen, easy operation 
• Automatic traction and cutting system, high efficiency 
• CE certified, reliable quality and long service life 
• Customizable width, thickness and output according to customer requirements

Technical Specifications of HDPE board extrusion machine

Model	Max Width	Thickness Range	Capacity	Total Power
SJ65/33	800mm	0.2–3mm	150-200 kg/h	100 kW
SJ75/33	1000mm	0.3–5mm	250-300 kg/h	120–130 kW
SJ90/33	1200–1500mm	0.5–8mm	300-400 kg/h	180–200 kW
SJ120/33	1500-2000mm	0.5-10mm	400-500 kg/h	250-300kw
SJ150/33	2000-3000mm	0.5-10mm	450-600 kg/h	300-400kw

Components & Workflow of HDPE board extrusion machine

Material Feeding & Drying: Equipped with hopper integrated with volumetric/dosing feeder for precise material control; optional dehumidifying dryer available for moisture-sensitive recycled PE materials.

Single-Screw Extruder: Equipped with multi-zone temperature controlled barrel (160–220°C for PE processing), precision screw design ensures efficient plasticization and melting of pellets. Integrated vacuum venting system effectively removes volatiles and moisture, while hydraulic screen changer enables non-stop operation. Single-screw configuration optimized for standard production, twin-screw variant designed for high-performance mixing applications (regrind materials, additives, and colorants).

Sheet Die (T-Die): Equipped with precision-adjustable lip design for accurate width/thickness control (standard width range 600–3000mm, thickness capability 0.2mm to 10+mm). The die features internal flow channel optimization to ensure uniform melt distribution, with independent temperature control zones maintaining consistent material viscosity during extrusion.

Three-Roll Calendar: Equipped with mirror-finish hard chrome rollers featuring independent temperature control (adjustable 80–120°C), precisely flattens the extruded melt sheet to ensure consistent thickness (±0.02mm tolerance) and high-gloss surface finish. The roller nip pressure system enables uniform material compression, while the synchronized speed control prevents sheet stretching or distortion during calendering.

Cooling & Traction Unit: Conveyor/cooling rollers, tension control system to prevent warping.

Cutting & Winding: Equipped with dual-mode processing capabilities – automatic cross-cutting system for sheet production (with precision length control ±1mm) and roll winding unit for coil formation. Integrated PLC control system ensures synchronized operation of cutting/winding speed with upstream traction unit, featuring tension feedback regulation to prevent sheet deformation during processing.

Why Choose Yongte?

Professional manufacturer of plastic extrusion machinery

Mature technology, stable quality

Factory direct sale, competitive price

Customized design available

Complete after-sales service system