Custom Open End Zipper Pin Box Machine
This equipment forms the pin box component used in open‑end zipper assemblies by feeding metal strip, punching pin holes, and forming the retaining box in a single continuous stroke.
Technical Specifications
The machine is built for high‑speed stamping with adjustable stroke length and interchangeable tooling to accommodate different pin box dimensions.
| Parameter | Typical Value / Customizable |
|---|---|
| Maximum strip width | 120 mm (adjustable up to 150 mm) |
| Pin hole diameter | 2.0 mm – 3.5 mm (tooling change) |
| Stroke rate | 80–120 strokes/min (variable frequency drive) |
| Motor power | 5.5 kW servo drive |
| Control system | PLC with touch‑screen HMI, recipe storage for 50+ part numbers |
Customization Options
The machine can be tailored to specific zipper pin box geometries and production volumes through a range of modular options.
- Interchangeable die sets for pin box heights from 4 mm to 12 mm
- Adjustable feed rollers for strip thicknesses 0.15 mm – 0.30 mm
- Optional in‑line vision inspection for pin alignment tolerance ±0.05 mm
- Extended conveyor length for accumulation buffers up to 2 m
- Choice of pneumatic or hydraulic clamping based on required force (5–15 kN)
Applications in Zipper Manufacturing
Open‑end zippers require a robust pin box that resists pull‑out forces; the machine produces a closed‑loop box that encapsulates the pin, providing the mechanical interlock needed for high‑cycle durability.
Typical end‑products include sportswear, outdoor gear, and luggage where zipper failure under load leads to product returns; the pin box geometry directly influences the zipper’s tensile strength, which can be validated by ASTM D2061 testing.
By adjusting the die set, the same line can serve both coil‑type and molded‑tooth zipper families, reducing the need for dedicated machines and lowering changeover time.
Quality Control and Process Monitoring
Each stroke is monitored by load sensors that compare the forming force against a preset window; deviations trigger an automatic reject gate.
Dimensional checks are performed offline using a coordinate measuring machine on a sample of 1 % of output, with critical dimensions reported as Cp ≥ 1.33.
Preventive maintenance schedules are driven by the machine’s embedded PLC, which logs cycle counts and lubrication points to extend tool life beyond 5 million strokes.
Frequently Asked Questions
- Can the pin box dimensions be customized? Yes, die sets are interchangeable and can be designed to any pin box height within the machine’s stroke limits.
- What information is required for a quotation? Strip material type, thickness, width, desired pin box geometry, and expected production rate.
- What materials are available for the tooling? Tool steel grades such as D2, A2, or carbide inserts depending on wear resistance needs.
- How is quality inspected? Inline force monitoring plus periodic CMM sampling; inspection criteria are defined in the purchase specification.
- What packaging methods are available for shipment? Machines are secured on a steel pallet with vibration‑isolating brackets and wrapped in shrink‑film; optional wooden crates for overseas transport.
- What is the typical production lead time? 8–10 weeks after receipt of approved drawings and deposit, subject to tooling complexity.
Get a Technical Quote
To discuss your specific zipper pin box requirements, provide the strip specifications and target volume. Our engineers will return a detailed layout drawing and price estimate within two business days.