2-in-1 Open-End Pin Box Injection and Connecting Machine Overview
The HTD83-SQV is a fully automatic, electrically controlled machine that combines pin box injection molding and connecting in one streamlined process for plastic open-end zipper production. Positioned after hole punching and slider mounting, and before final packaging, it performs a critical operation that helps determine the strength and durability of the finished pin box—the plastic component at the open end of the zipper.
By combining two production steps in a single machine, the HTD83-SQV simplifies the workflow, reduces handling time, and supports consistent product quality.
2-in-1 Open-End Pin Box Injection and Connecting Machine Specifications
Parameter | Specification |
Product Name | Electrical 2-in-1 Open-End Plastic Zipper Pin Box Injection Machine with Connecting Function |
Model | JP83-SQV |
Production Capacity | 700 pcs/hour |
Power | 3KW |
Voltage | 380V |
Machine Size (L × W × H) | 2400 x 685 x 2000 mm |
Machine Weight | 800 kg |
Zipper Size Range | #3-#20 |
Zipper Material | Plastic |
Applications for the 2-in-1 Open-End Pin Box Injection and Connecting Machine
The HTD83-SQV is a key machine for manufacturing open-end zippers and is suitable for a range of applications:
- Open-end zipper production: Molds pin boxes and connects components to complete the zipper opening.
- Garment manufacturing: For jackets, coats, jeans, and other outerwear.
- Luggage and handbags: For backpacks, suitcases, and travel bags.
- Outdoor equipment: For tents, sleeping bags, and other products requiring durable zippers.
For a complete automated open-end zipper production line, the machine is typically used with zipper gapping, film sealing, hole punching, and slider mounting machines.
How the 2-in-1 Open-End Pin Box Injection and Connecting Machine Works
The HTD83-SQV uses a fully automatic electrical control system powered by a PLC (Programmable Logic Controller). Its integrated process combines pin box injection molding and connecting into a coordinated production sequence.
Injection Molding Unit
Plastic material, such as resin or Delrin, is heated to a controlled melting temperature and injected into a custom mold cavity positioned directly on the zipper tape. The PLC manages injection pressure, temperature, holding time, and cooling to help ensure consistent pin box dimensions and a secure bond with the tape.
Connecting Unit
Once the pin box has been molded and solidified, an electric servo motor-driven mechanism automatically connects one side of the tape with one side of the slider to complete the open-end zipper assembly.
Throughout the cycle, the PLC synchronizes feeding, positioning, injection, cooling, connecting, and ejection for precise, repeatable operation.
Key Advantages of the 2-in-1 Open-End Pin Box Injection and Connecting Machine
1. Integrated 2-in-1 Design Saves Space and Labor
The machine performs pin box injection and connecting in one unit. Compared with separate machines, this integrated design reduces floor space by approximately 40% and eliminates intermediate material handling. One operator can manage work that previously required two.
2. Fully Automatic Electrical Control for Stable, Precise Production
A PLC control system precisely manages injection temperature, pressure, and timing. The electric drive provides responsive, accurate operation and lower energy consumption than pneumatic alternatives.
3. Compatible with #3 to #20 Plastic Zippers
The machine supports plastic zipper sizes #3 through #20, including Delrin, resin, and Vislon types. This range covers commonly used zipper sizes for garments, luggage, and outdoor equipment.
4. Precision Injection for a Secure, Durable Pin Box
Precision molds and quality core components—including the PLC, bearings, and motor—help create a firm bond between the molded pin box and zipper tape. This helps prevent loosening or detachment and improves finished zipper durability.
5. Consistent Output of up to 700 Pieces per Hour
With an average production capacity of 700 pieces per hour, the machine is suited to continuous, medium- to large-batch manufacturing.
