Single Wall Heat Shrink Tubing Extrusion&Expansion Production Line
A complete heat shrink tubing production line is a system that can produce heat shrink tubing from raw materials to finished products. Heat shrink tubing is a type of plastic tubing that can shrink in diameter when exposed to heat, and is used for various applications such as insulation, protection, sealing, identification, and decoration of wires, cables, connectors, terminals, and other components.
- A pelletizer that can produce plastic pellets from raw materials such as polyethylene, polypropylene, polyvinyl chloride, or other polymers.
- An extruder that can melt the plastic pellets and extrude them into a continuous tube of desired diameter and wall thickness.
- A cross-linking unit that can apply radiation or chemical treatment to the extruded tube to enhance its thermal and mechanical properties.
- An expander that can inflate the cross-linked tube with air or nitrogen to create a larger diameter and thinner wall.
- A cooling&shaping unit that can cool down the expanded tube and set its shape and size.
- A cutting machine that can cut the cooled tube into desired lengths and widths.
- A printing machine that can print logos, texts, symbols, or other information on the surface of the tube.
- A tray winder that can pack the finished tubes into bags, boxes, reels, or other containers.
The production process of heat shrink tubing may vary depending on the type, size, and specification of the tube, as well as the quality and efficiency requirements of the manufacturer. Some production lines may have additional or optional equipment such as dryers, mixers, feeders, coilers, testers, or quality control systems. The production line can be customized according to the customer’s requirements and specifications.
WOLJIA designs and manufactures complete extrusion and expansion lines for producing (PVC, PE, PVDF, PTFE, fluorine rubber, EPDM, FEP, etc.) Heat Shrink Tubing including pelletizers, extruders, expanders, tooling, and all auxiliary machines.
WOLJIA will offer you the most suitable solution based on your demands and customize your heat shrink tubing extrusion and expansion line.
A complete single wall heat shrink tubing extrusion and expansion line is a system that can produce single wall heat shrink tubing from raw materials to finished products
The main components of single wall heat shrink tubing extrusion line:
Extruder — Extrusion Die — Cooling and Setting Water Tank — Tractor — Winding Machine
The main components of single wall heat shrink tubing expansion production line:
Unwinding stand—tubes’particle feeding–glycerin heating box–die positioning–vacuum control–water cooling&shaping–traction output
1. Heat Shrink Tubing Extruder Models:
SJ-30 extruder, SJ-45 extruder, SJ-50 extruder,
SJ-55 extruder, SJ-65 extruder, SJ-75 extruder,
SJ-90 extruder, SJ-120 extruder.
2. Heat Shrink Tubing Extrusion Die:
Within a certain range, dies of different specifications can be replaced to produce products of different specifications.
3. Two types Cooling and Shaping Water Tanks:
Immersion cooling and shaping water tank and vacuum cooling and shaping water tank.
Immersion cooling and shaping water tank is mainly used for extrusion cooling and shaping of small-size heat shrink tubing,
Vacuum cooling and shaping tank is mainly used for extrusion cooling and shaping large-size heat-shrink tubing.
4. Two types Tractors :
Twin-roll tractor (composed of two pairs of rubber rollers) is mainly used for the extrusion and traction of small-size heat shrink tubing,
Crawler tractor (two traction tracks composed of a rubber belt or rubber block) is mainly used for the extrusion and traction of large-size heat shrink tubing
5. Winding Machine:
Large-diameter winding machines are used to prepare for the next step (preparation for electron accelerator irradiation) Small-size heat shrink tubing needs to be plied and winded to the winding plate together and then the branching machine separates the tubing after irradiation.
Drying&Feeding Machine
6. Single Wall Heat Shrink Tubing Extrusion Production Line is equipped with an automatic vacuum feeding machine with a drying hopper, The models are: 25kG, 50kG, 75kG, 100kG
Range Optional Extruder for Single Wall Heat Shrink Tubing
No.1 The main equipment components:
Heat Shrink Tubing Extruder – Extrusion Die – Cooling&Shaping Water Tank -Roll Tractor-Plying&Winding Machine, Branching Machine
Model SJ-30 for Φ0.5-Φ10mm, 5-20mtrs/min
Model SJ-45 for Φ6-Φ20mm, 8-40mtrs/min
No.2 The main equipment components:
Heat Shrink Tubing Extruder – Extrusion Die – Cooling&Shaping Water Tank -Belt Tractor–Winding Machine
Model SJ-50 for Φ20-Φ40mm, 5-20mtrs/min
Model SJ-55 for Φ30-Φ60mm, 5-18mtrs/min
No.3 The main equipment components:
Heat Shrink Tubing Extruder – Extrusion Die – Cooling&Shaping Water Tank -Belt Tractor–Winding Machine
Model SJ-65 for Φ60-Φ120mm, 4-10mtrs/min
Model SJ-75 for Φ100-Φ180mm, 4-10mtrs/min
No.4 The main equipment components:
Heat Shrink Tubing Extruder – Extrusion Die – Cooling&Shaping Water Tank-Shaping Die-Belt Tractor-Winding Machine/Winding&Plying Machine/Cutting Machine
Model SJ-90 for Φ150-260mm, 3–10mtrs/min
Model SJ-120 for Φ200-Φ300mm, 3-10mtrs/min
Single Wall Heat Shrink Tubing Expansion Line equipment introduction:
This production line uses glycerin as a heat conduction medium, Expansion and setting equipment is carried out by combining negative pressure (vacuum) and positive pressure (inner air).
It mainly consists of the following parts:
1. Unwinding stand: made of the square tube or section steel, the unwinding reel rotates freely on it
2. Tube Billet Traction and Feeding Part: driven by the motor, the rubber roller feeds the tube billet into the glycerin box
3. Glycerin Heating Tank: electric heating of glycerin to heat the tube blank, so that the irradiated tube blank reaches a molten high-elastic state
4. Glycerin Heating and Conveying Section: the transmission part is driven by the motor to realize the continuous and uniform transportation of the tube billet in the glycerin tank
5. Die Positioning Part: used to install expansion die
6. Vacuum Control Part: control the vacuum size of the die
7. Water Cooling Part: control the water volume of the die, and cool the expanded heat shrink tubing
8. Traction Output Part: the motor drives the rubber roller to pull and output the expanded heat shrink tubing
9. Finished product Transport Output
Range Optional Expander for Single Wall Heat Shrink Tubing
KZJ20-3
1 out of 3 Single-Wall Heat Shrink Expansion Production Line
The kind of Expander can expand three different specifications or three tubes of the same specification at the same time KZJ50-2The kind of Expander can expand two different specifications or two tubes of the same specification at the same time
KZJ50-2
1 out of 2 Single-Wall Heat Shrink Expansion Production Line
The kind of Expander can expand two different specifications or two tubes of the same specification at the same time
KZJH-2 1 out of 2 Heat Shrink Expansion Production Line
The kind of Expander can expand two different specifications or two tubes of the same specification at the same time
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