50-250mm HDPE pipe extrusion line

Main Components for HDPE Pipe Extrusion Line

Plastic Extruder
The extruder is the core equipment of the entire line and is responsible for heating and melting the plastic raw material and extruding it through the die head into the desired shape of pipe. The extruder usually consists of a screw, a heating zone, a cooling zone, a motor and a control system. The screw is responsible for heating and pushing the plastic pellets to melt and form a uniform molten material.

Die head

The die head is the component that moulds the molten plastic material into a specific cross-sectional shape. Its design and construction determine the shape and size of the final pipe. The die head usually consists of multiple extrusion holes through which the molten plastic is extruded to form the initial shape of the pipe.

Cooling system

A cooling system is used to rapidly cool and cure the extruded molten plastic to maintain its desired shape and size. Cooling systems can include components such as water showers, cold air blowers and cooling rollers to ensure that the pipe cools quickly and remains stable after extrusion

Haul-off equipment

Haul-off equipment is used to pull the extruded plastic pipe from the die head and to control the pipe’s haul-off speed to ensure consistent size and appearance. Haul-off equipment typically uses belts, straps or tyres to provide consistent traction.

Cutting equipment
Cutting equipment is used to cut the extruded pipe to the desired length. Cutting can be done with knives, saws, etc., to ensure that each pipe is the exact length it needs to be.

Winding equipment
For the production of long pipes, the winding equipment is used to wind the extruded pipes into coils for easy transport and storage.

Control system

The entire production line requires a precise control system to monitor and adjust the operation of the extruder, die, cooling system, haul-off equipment and other components. Modern control systems often include automation and data acquisition to optimise the process and ensure product quality.