OEM Automatic Nylon Zipper Making Machine
This equipment produces continuous nylon zipper chains directly from monofilament or multifilament nylon tape, integrating tape feeding, tooth formation, and chain winding in a single automated line.
Working Principle
Nylon tape is unwound from a supply reel, guided through a heating zone where the tape edges are softened, then molded by precision dies to form interlocking teeth. The newly formed chain passes through a cooling section, is tension‑controlled, and wound onto a take‑up bobbin at a set linear speed.
Synchronization between tape feed rate, die cycling speed, and winding tension ensures uniform tooth pitch and consistent chain width without manual adjustment.
Core Technical Specifications
| Parameter | Typical Value / Range |
|---|---|
| Maximum tape width | 5 mm – 12 mm (customizable) |
| Tooth pitch | 3.0 mm – 5.0 mm (adjustable via die set) |
| Production speed | 80 – 150 m/min (depends on tape material and tooth geometry) |
| Installed power | 4.5 kW – 7.5 kW (motor drive + heating zones) |
| Control system | PLC with touch‑screen HMI, recipe storage for multiple zipper types |
Material Compatibility
The machine processes polyamide 6, PA 66, and reinforced nylon tapes with denier ranging from 70 dtex to 300 dtex. Additives such as UV stabilizers or flame retardants can be accommodated provided the melting point stays within the heating zone limits (180 °C – 210 °C).
Tape thickness tolerance should be within ±0.02 mm to maintain consistent tooth formation; external diameter of the supply reel must not exceed 300 mm for the standard unwind station.
Production Capacity & Speed Control
Linear speed is regulated by a closed‑loop servo drive that monitors tape tension via a load cell. Speed ramps are programmable to avoid shock loading during start‑up and shut‑down.
For a 6 mm wide PA 6 tape with 3.5 mm pitch, the stable output is approximately 110 m/min, yielding roughly 6.6 km of finished chain per shift (8 h) under continuous operation.
Control System & Automation Features
The PLC stores up to 30 product recipes, each defining tape feed rate, die temperature profile, winding tension, and speed. Changeover between recipes takes less than two minutes via the HMI.
Safety interlocks guard the heating zone and moving dies; emergency stop buttons are positioned at operator and service sides. Fault diagnostics display on the screen with timestamped logs for maintenance planning.
Applications in Textile & Apparel Manufacturing
Automatic nylon zipper makers serve manufacturers producing garments, luggage, sportswear, and technical textiles where continuous zipper chains reduce splicing labor and improve seam integrity.
By supplying zipper chain directly to downstream sewing lines, lead‑time for finished products shortens, and inventory of pre‑made zipper coils is minimized.
Customization Options
- Die sets for tooth pitches from 2.5 mm to 6.0 mm
- Wide‑tape adapters up to 20 mm for decorative or heavy‑duty zippers
- Integrated lubrication system for low‑friction tape feeding
- Alternative take‑up devices: spool, flat‑bag, or carton winding
- Data logging module for production traceability (output length, speed, alarms)
Quality Assurance & Testing
Each machine undergoes a factory acceptance test that measures tooth pitch deviation (±0.05 mm), chain width uniformity (±0.1 mm), and tensile strength of the zipper chain (≥ 25 N / 5 mm width).
Visual inspection stations equipped with LED back‑lighting detect missing teeth or malformed elements; automatic reject gates divert defective sections to a scrap bin.
Calibration of heating zones is performed quarterly using calibrated thermocouples; records are retained for audit purposes.
Installation, Commissioning & Service
The machine is delivered skid‑mounted with leveling feet; installation requires a three‑phase 380 V supply, compressed air (0.5 MPa) for tape guiding, and adequate ventilation for the heating zone.
Commissioning includes mechanical alignment, PID tuning of temperature loops, and a trial run with customer‑supplied nylon tape to verify output specifications.
Spare parts list (dies, belts, sensors) and preventive maintenance schedule are provided; remote diagnostics via Ethernet are available on request.
Frequently Asked Questions
- Can the machine produce both coil and continuous zipper chain? It is configured for continuous chain; coil conversion requires an additional winding station.
- What information is needed for a quotation? Tape material type, desired width, tooth pitch, target line speed, and any special additives.
- Which standards apply to the produced zipper chain? The chain meets ISO 9001‑compliant manufacturing; specific zipper standards (e.g., YKK, SBS) are achieved by matching tooth geometry.
- How is quality inspected during operation? Inline optical sensors monitor tooth presence; data is logged and deviations trigger alarms.
- What is the typical lead time for delivery? 10‑12 weeks after receipt of purchase order, depending on die set complexity.
Get More Information
For detailed technical drawings, custom die proposals, or to arrange a virtual factory walk‑through, please contact our engineering team.
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