The Plastic Zipper Film Sealing Machine (also known as an ultrasonic zipper tape welding machine or tape applicator) is a key piece of equipment in the open‑end zipper production line. Its main task is to apply a reinforcing tape (film) onto the zipper tape using ultrasonic welding technology before the punching (hole‑making) process.
This pre‑punching reinforcement prevents the tape from fraying or loosening after punching, and strengthens the box/pin (slider‑stop) area – ensuring that the finished open‑end zipper has high pull‑strength and long‑term durability.
The HTD‑PW02 is specifically designed for resin, plastic ，Delrin, and Vislon zipper chains, and is an indispensable step in any automated open‑end zipper production line.
Plastic Zipper Tape Welding Machine Specification
Parameter | Specification |
Product Name | Automatic Plastic Ultrasonic Film Welding / Tape Sealing Machine |
Model | HTD-PWO2 |
Average Output | 1,200 pcs/hour (at 60 cm length) |
Power | 5KW |
Machine Size (LxWxH) | 0.80 x 1.00 x 1.66 m |
Voltage | 220 V |
Frequency | 50/60 Hz |
Machine Weight | 210 kg |
Teeth Size Range | #2-#10 |
Applicable Materials | Plastic, Resin, Delrin, Vislon |
Core Components | PLC, Gears |
Warranty | 1Year |
Safety Devices | Protective cover + door interlock |
Plastic Zipper Tape Welding Machine Application Scenarios
The film sealing machine is a core process step in open‑end zipper manufacturing:
Open‑end zipper production – applies reinforcing tape before punching, tooth gapping, and box/pin insertion.
Garment manufacturing – jackets, coats, sportswear, etc.
Luggage & handbags – backpacks, suitcases, travel bags.
Outdoor equipment – tents, sleeping bags, and other high‑durability applications.
It is typically used together with zipper gapping machines, slider inserters, and box/pin applicators to form a complete automated open‑end zipper line.
1. Ultrasonic Welding – Strong Bond, No Tooth Damage
Using high‑frequency ultrasonic vibration, the film and zipper tape are fused together at the molecular level. Unlike traditional heat‑sealing, ultrasonic welding does not damage the zipper teeth, leaves a smooth and neat weld, and requires no pre‑heating – saving energy and time.
2. Manipulator Clamp Feeding – No Leakage, No Misalignment
The machine is equipped with a mechanical manipulator clamp that feeds the film precisely. This ensures consistent tape placement on every zipper, eliminating film leakage or skewing, and drastically reducing defect rates.
3. Alloy Die – Excellent Thermal Conductivity & Durability
The die is made from high‑grade alloy, offering superior heat transfer and high resistance to wear. It maintains uniform welding temperatures even under continuous high‑frequency operation, significantly extending service life.
4. Individual Blade for Film Cutting – Protects the Die
Film cutting is performed by a separate blade that does not contact the die. This design prevents die wear, prolongs die lifespan, and lowers consumable costs.
5. Optimised Positioning – Strengthens Box/Pin Strength
The refined positioning design minimises the distance between the welded film and the zipper teeth, ensuring the film adheres closer to the tooth roots. This reinforces the box (slider‑stop) area, enhancing the overall tensile strength and durability of the finished open‑end zipper.
6. Complete Safety Protection
Fitted with a high‑quality safety cover and door interlock system, the machine complies with modern factory safety standards.
7. Wide Compatibility
Supports plastic zipper teeth from size #2 to #10, covering the most common sizes used in garments, luggage, and outdoor gear.
