This machine is purpose‑built for gapping (cutting openings) on resin, plastic, Delrin , Vislon , and bone zipper chains.
The Plastic/Delrin Zipper Gapping Machine is a critical piece of automated equipment in the zipper manufacturing production line.
Its primary function is to remove specific teeth from a continuous zipper chain at designated positions, creating gaps that allow for subsequent installation of top stops, bottom stops, sliders, and other zipper components.
In the zipper production workflow, tooth gapping (or “cutting to size”) is a key upstream process – using precisely matched dies to remove chain teeth at set intervals, thus achieving accurate final lengths. This process directly determines the final length precision of the finished zipper and the quality of subsequent assembly, making it an indispensable step in zipper manufacturing.
Plastic Zipper Gapping Machine Specification
Parameter | Specification |
Product Name | Delrin/Plastic/Resin/Vislon/Bone Zipper Gapping Machine |
Model | HTD-PG01 |
Average Output | 2,000 pcs/hour (at 60 cm length) |
Power | 2kW |
Machine Size (LxWxH) | 1.00 x 1.00 x 1.60 m |
Voltage | 380V |
Frequency | 60 Hz |
Machine Weight | 360 kg |
Teeth Size Range | #3-#20 |
Length Setting Range | 1 cm - 800 cm (touchscreen adjustable) |
Length Precision | ≤ +2 mm over 60 cm |
Safety Devices | Protective cover + door interlock system |
Plastic Zipper Gapping Machine Working Principle
The gapping process on the HTD‑PG01 follows a precise sequence of “positioning → cutting → separation”:
Positioning – The presser plate firmly clamps both sides of the zipper tape, securing it in the exact working position.
Cutting – The cutting blade descends and engages the zipper tape. Under the action of the power mechanism, the blade pulls outward on both sides, separating the targeted teeth from the tape.
Removal – The upper and lower punches work together to thoroughly remove any remaining tooth fragments from the gap area.
Collection – The removed tooth debris is channeled into a waste collection system, keeping the machine and the surrounding area tidy.
All these actions are precisely synchronized by multiple cams set at different angles on the main motor shaft, ensuring seamless coordination of each step.
Plastic Zipper Gapping Machine Application Scenarios
The Plastic/Delrin Zipper Gapping Machine is widely used in various industries that rely on zippers as fastening components:
Garment Manufacturing – Outerwear, trousers, sportswear, children’s clothing, and other apparel requiring precise zipper sizing.
Luggage & Handbags – Backpacks, suitcases, travel bags, and other luggage items.
Outdoor Gear – Tents, sleeping bags, and other outdoor equipment.
Stationery & Home Textiles – Pencil cases, document bags, storage pouches, and home textile products.
This equipment is particularly well‑suited for factories that require high‑volume, high‑precision zipper production. It can be paired with other machines such as slider inserters, bottom‑stop applicators, and tape‑sealing units to form a complete automated zipper production line.
Safety First – Equipped with a high‑quality safety cover and door protection system to ensure operator safety.
Innovative Bilateral Positioning – The unique dual‑side positioning design enables 100% tooth‑repair‑free operation for plastic zippers, drastically reducing rework and increasing yield.
Exceptional Length Accuracy – Achieves a tolerance of ≤ ±2 mm within a 60 cm length, meeting the most demanding cutting requirements.
Flexible Length Setting – A 7‑inch touchscreen allows arbitrary length settings from 1 cm to 800 cm, with no mechanical adjustments needed for product changeovers.
Wide Compatibility – Supports Delrin/plastic teeth from size #3 to #20, as well as various resin tooth types
High Throughput – Average output of 2,000 pieces per hour (based on 60 cm length), ideal for mass production.
Whether used in garment, luggage, or outdoor gear manufacturing, this gapping machine delivers stable, efficient, and precise zipper opening solutions.
