Metal Zipper Machine for Leather Bag Production
This machine inserts metal zipper tapes into leather bag panels at controlled speeds, accommodating zipper gauges from 3 mm to 10 mm and leather thicknesses up to 4 mm. It is suited for exporters who require consistent zipper placement to meet international quality standards.
Technical Specifications
Performance data are presented in the table below.
| Parameter | Value | Notes |
|---|---|---|
| Motor Power | 1.5 kW | AC servo, variable frequency drive |
| Maximum Zipper Speed | 120 cycles/min | Adjustable via PLC |
| Zipper Gauge Compatibility | 3–10 mm metal zipper teeth | Interchangeable guide rollers |
| Power Supply | 380 V, 3‑phase, 50/60 Hz | Optional 220 V configuration |
| Machine Dimensions (L×W×H) | 1800 mm × 900 mm × 1500 mm | Includes safety guarding |
Key Features
These features reduce setup time and improve seam consistency.
- Adjustable zipper width mechanism with micrometer scale
- Automatic feeder with sensor‑controlled stop to prevent material jams
- Heated press roller (up to 120 °C) for proper zipper tape bonding to leather
- Closed‑loop tension control maintaining ±2 N variation
- Quick‑change tooling for different zipper profiles
Applications in Leather Bag Manufacturing
Leather bag producers need a system that can handle thick, vegetable‑tanned or chrome‑tanned leather without damaging the material. The machine’s reinforced needle bar and adjustable press force allow insertion of metal zippers up to 10 mm gauge through 4 mm‑thick leather layers, producing a flat, wrinkle‑free seam. Because the feed rate is synchronized with the zipper advance, each bag panel receives a uniformly spaced zipper, reducing rework and scrap.
Quality Control and Testing
Before shipment, each unit undergoes a functional test where 100 consecutive zipper insertions are performed on sample leather. Inspection criteria include zipper alignment deviation (<0.5 mm), tensile strength of the bonded zipper tape (>15 N), and motor temperature rise (<40 °C above ambient). Wear parts such as guide rollers and needles are inspected for surface roughness using a profilometer, with acceptable Ra values ≤0.8 µm.
Customization Options
The base configuration can be adapted to specific production lines or zipper types.
- Alternative motor voltages (220 V single‑phase or 440 V three‑phase)
- Extended zipper gauge range up to 12 mm with reinforced rollers
- Integration of a barcode scanner for batch tracking
- Extended conveyor length for continuous panel feeding
- Optional stainless‑steel frame for corrosive environments
Typical Production Lead Time
Standard units are built to order within 4–6 weeks after receipt of technical confirmation and deposit. Custom configurations may extend the lead time to 8–10 weeks, depending on the complexity of the requested modifications.
Frequently Asked Questions
- Can the machine handle both metal and nylon zippers? It is optimized for metal zipper teeth; nylon zipper processing requires a different press roller and is available as a retrofit kit.
- What information is needed for a quotation? Required details include target zipper gauge, leather thickness, desired production rate (cycles/min), power supply specifications, and any required custom features.
- How is the machine shipped for export? The unit is secured on a steel pallet with shock‑absorbing brackets, wrapped in UV‑stable polyethylene film, and placed in a wooden crate meeting ISPM‑15 standards.
- What spare parts are recommended for the first year? Suggested spares include guide rollers (2 sets), needle bar assemblies (1 set), tension sensor cables, and PLC backup battery.
Contact for Quotation
To discuss your specific requirements and receive a detailed technical proposal, please contact our sales team. Provide the details listed in the FAQ section to expedite the quotation process.