China Custom Metal Zipper Pin Box Punching Machine Supplier
The pin‑box punching machine is engineered to produce the rectangular metal boxes that house zipper pins in continuous‑feed zipper assembly lines. It combines a high‑speed servo‑driven press with a
China Custom Metal Zipper Pin Box Punching Machine Supplier
The pin‑box punching machine is engineered to produce the rectangular metal boxes that house zipper pins in continuous‑feed zipper assembly lines. It combines a high‑speed servo‑driven press with a precision‑ground die set, delivering repeatable hole patterns and consistent wall thickness across batch runs.
Design emphasis is placed on tool‑change speed and dimensional stability. The frame uses a welded steel box structure that resists deflection under peak loads of 30 kN, while the linear guide rails are hardened to HRC 58 to maintain ±0.02 mm positioning accuracy over 10 million cycles.
Technical Specifications
| Parameter | Typical Value | Customization Range |
|---|---|---|
| Nominal punching force | 30 kN | 20–45 kN (adjustable servo torque) |
| Stroke length | 45 mm | 30–60 mm |
| Maximum cycle rate | 180 cycles/min | 120–250 cycles/min (depends on die complexity) |
| Die mounting pattern | ISO 9409‑2 4‑bolt | Custom bolt circles on request |
| Control system | PLC + HMI (Siemens S7‑1200 compatible) | Alternative brands supported |
| Power supply | 380 V / 3 ph / 50 Hz | 415 V / 60 Hz available |
| Overall dimensions (L×W×H) | 2100 × 1150 × 1900 mm | Scalable for line integration |
| Machine weight | ≈ 3200 kg | Depends on optional accessories |
Customization Options
Each production line has unique pin‑box geometry, material thickness, and throughput targets. The machine platform accommodates the following configurable elements:
- Die set geometry – single‑cavity, multi‑cavity, or progressive configurations.
- Material feed – coil‑feed straightener, servo‑driven roll feeder, or pneumatic strip feeder.
- Lubrication system – automatic oil mist, dry‑film coating, or customer‑specified lubricant.
- Safety guarding – light‑curtain, interlocked doors, or full enclosure per CE/UL requirements.
- Data integration – OPC‑UA, Modbus TCP, or proprietary MES interface.
Manufacturing & Assembly Considerations
The frame is fabricated from Q235B structural steel, stress‑relieved after welding to eliminate residual distortion. Critical mating surfaces are CNC‑machined to IT7 tolerance, ensuring repeatable die alignment without shims.
Servo motors are selected from a qualified supplier list (e.g., Yaskawa Σ‑7 series) and paired with a planetary gearbox rated for 1.5× the nominal torque, providing headroom for peak punching events.
Electrical cabinets follow IEC 60204‑1 wiring practice, with segregated power and signal routing, and are pre‑wired for quick on‑site commissioning.
Quality Control Philosophy
Every unit undergoes a three‑stage inspection before shipment:
- Geometric verification – CMM measurement of die pocket locations and frame squareness.
- Dynamic run‑in – 2 hours at rated speed with load cells recording force curves for each cycle.
- Functional test – production of a sample batch of pin boxes inspected for wall thickness (±0.03 mm) and hole position (±0.02 mm).
Inspection records are archived for 5 years and can be supplied as part of the documentation package.
Typical Applications
The machine serves zipper manufacturers producing metal‑tooth zippers for apparel, luggage, automotive trim, and technical textiles. Because the pin box determines the engagement force and durability of the zipper, consistent geometry directly influences end‑product performance in high‑cycle environments such as outdoor gear and safety harnesses.
Integration into a fully automated line is common: the punching station feeds directly into a subsequent riveting or welding cell, minimizing handling and reducing scrap rates.
Packaging & Shipping
Machines are secured on a steel skid with vibration‑damping pads, wrapped in VCI‑treated stretch film, and enclosed in a fumigated wooden crate compliant with ISPM‑15. Custom packaging (e.g., shock‑indicator labels, climate‑controlled containers) is available for sea‑freight routes exceeding 30 days.
Frequently Asked Questions
Can the punching force be altered after installation?
Yes. The servo drive allows torque re‑programming via the HMI without mechanical changes, enabling force adjustment within the 20–45 kN window.
What information is required for a quotation?
Provide pin‑box drawing (DXF/STEP), material grade and thickness, desired output rate, and any line‑integration constraints (space, power, communication protocol).
Which materials can be processed?
Typical feedstock includes cold‑rolled low‑carbon steel (DC01), stainless steel 304/316, and brass alloys. Harder alloys up to 600 MPa tensile strength are feasible with upgraded tooling.
How is quality inspected before shipment?
A three‑stage protocol (geometric, dynamic, functional) is performed, and a full inspection report with CMM data and force‑curve logs is supplied.
What are the standard lead times?
Standard configurations ship in 8–10 weeks after order confirmation. Custom die sets or non‑standard control hardware add 2–4 weeks.
How are samples arranged?
A pilot run of 200–500 pin boxes can be produced on the test bench at our facility; samples are shipped with the inspection report for customer approval before full‑scale production.
For technical discussions, layout reviews, or on‑site commissioning support, contact our engineering team.
