OEM Zipper Bottom Stop Machine Manufacturer
The bottom stop machine installs the terminal stop element on zipper chains, ensuring the slider cannot detach during use. It can operate as a standalone unit or be integrated into a zipper assembly line, processing continuous coil or metal zipper tape at line speeds up to 150 meters per minute.
Core Technical Specifications
The machine employs a servo‑driven cam mechanism that positions and crimps the stop with a repeatability of ±0.02 mm. Drive power is rated at 1.5 kW, supplied via three‑phase 380 V, and the controller accepts PLC‑based programming for rapid changeover between product families.
- Maximum tape width: 12 mm (coil) / 8 mm (metal)
- Stop length range: 2.0 mm – 6.0 mm (adjustable)
- Crimp force: 0.8 kN – 2.5 kN (servo‑adjustable)
- Cycle rate: up to 250 stops per minute
Engineering Design and Materials
The main frame is machined from stress‑relieved S45C carbon steel, achieving a flatness tolerance of 0.01 mm over a 500 mm span, which provides a stable platform for high‑frequency cycling. Guides and shafts are fabricated from hardened chrome‑molybdenum steel (HRC 58‑60) to resist wear from repeated stop feeding.
- Frame: S45C (standard) or optional stainless steel 304 for corrosive environments
- Guides/shafts: chrome‑molybdenum steel (standard) or carbide‑tipped for abrasive tapes
- Drive system: servo motor (standard) with optional stepper motor for cost‑sensitive applications
Customization Capabilities
OEM buyers can define stop length, crimp force, and feed orientation to match proprietary zipper designs. The machine accepts interchangeable tooling cassettes that can be swapped in under three minutes, allowing production of multiple stop profiles on the same line without extensive downtime.
| Parameter | Typical Range | Options |
|---|---|---|
| Stop length | 2.0 mm – 6.0 mm | Custom profiles available per drawing |
| Crimp force | 0.8 kN – 2.5 kN | Servo‑adjustable; optional pneumatic booster |
| Feed orientation | 0°, 90°, 180° | Custom angle brackets on request |
| Tooling cassette | Standard cassette | Quick‑change cassettes for multiple profiles |
Applications in Zipper Production
Bottom stop installation is essential for zipper chains used in outerwear, luggage, and sports gear where a secure terminal stop prevents slider loss during repeated flexing. The machine processes both continuous coil zipper tape (nylon or polyester) and metal zipper chain (brass or aluminum) without retooling, simply by adjusting the feed guide.
- Outdoor apparel (jackets, pants)
- Luggage and travel accessories
- Sports equipment (bags, protective gear)
- Automotive interior trims
Quality Control and Testing
Each unit undergoes a functional test of 10 000 cycles at rated speed, with stop position measured by a laser micrometer. Acceptance criteria require cumulative deviation under 0.1 mm and zero missed feeds.
| Checkpoint | Method | Acceptance |
|---|---|---|
| Stop position accuracy | Laser micrometer sampling | ±0.02 mm per stop, cumulative ≤0.1 mm |
| Feed reliability | Cycle test 10 000 stops | 0 missed feeds |
| Crimp force consistency | Load cell monitoring | Variation ≤5 % of set point |
| Electrical safety | Hi‑pot and insulation resistance | Compliance with IEC 60204‑1 |
Lead Time, Packaging and Logistics
Standard production lead time is 6‑8 weeks after approval of technical drawings, varying with selected options such as stainless‑steel frame or special tooling. Machines are crated in ISPM‑15 compliant wooden boxes with internal foam bracing, weighing approximately 420 kg, and are ready for ocean or land freight.
- Packaging: wooden crate, foam interior, plastic stretch wrap
- Shipping terms: EXW, FOB, CIF available
- Optional: on‑site installation and training
Frequently Asked Questions
- Can the stop length be customized? Yes, the stop length is adjustable from 2.0 mm to 6.0 mm, and special profiles can be produced to customer drawings.
- What information is required for a quotation? We need zipper tape type, tape width, desired stop length, expected production speed, and any special environmental conditions (e.g., corrosion resistance).
- Which materials are available for the frame? Standard frame is S45C carbon steel; optional stainless steel 304 is offered for humid or chemically aggressive environments.
- How is quality inspected? Each machine runs a 10 000‑cycle functional test with laser micrometer verification of stop position and crimp force.
- What packaging methods are used for export? Machines are packed in ISPM‑15 compliant wooden crates with foam bracing and stretch wrap, suitable for ocean freight.
- What is the typical production lead time? Lead time ranges from 6 to 8 weeks after drawing approval, depending on selected options.
Contact for Inquiry
For technical quotations, CAD files, or to discuss OEM customization, reach out to our engineering team via the link below.
Contact our engineering team