The process(extrusion and expansion) of producing heat shrink heavy wall tubing consists of three steps: extrusion, electron beam irradiation, and expansion.
Heat Shrink Heavy Wall Tubing is produced through a process of extrusion, electron beam irradiation, and expansion. The process starts with extruding polyethylene into a tubular shape using an extruder. The tubing is then cross-linked by a high-energy electron beam accelerator. Finally, the tubing is expanded to its final size.
Solution for Up to 4.5:1shrink ratio, Heavy(Thick) Wall Heat Shrink Tubing Extrusion&Expansion Line
Range Optional Extruder of Heat Shrink Medium/Heavy Tubing /Semi-Conductive Tubing/Stress Control Tubing/Insulated Tubing
Model; SJ-55 for Φ8-Φ55mm
Model; SJ-65 for Φ65-Φ160mm
Model; SJ-90 for Φ160-Φ300mm
Heat shrink tubing expansion production line equipment introduction:
This production line uses glycerin as a heat conduction medium.
Expansion and setting equipment combine negative pressure (vacuum) and positive pressure (inner air).
The specific solution depends on the specific tubes’ sizes, thickness, etc.
The extrusion and expansion line consists of several components, such as:
An extruder that melts and shapes the plastic material into a tube.
A cross-linking unit that uses an electron beam to create chemical bonds between the polymer chains, making the tube more resistant to heat, chemicals, and abrasion.
An expander that inflates the tube to a larger diameter using air or glycerin, and then cools it down to set its shape.
A tray winder that winds the expanded tube into rolls for storage or transportation.
WOLJIA designs and manufactures complete extrusion and expansion lines for producing Heat Shrink Tubing including pelletizers, extruders, expanders, tooling, and all auxiliary machines.
WOLJIA can offer you the most suitable product solution based on your demands, and customize your heat shrink tubing production line.
