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This product is an automotive special plastic cable tie fastener, integrated with snap-in mounting base for car interior wiring harness fixing. It adopts self-locking gear strip design, adjustable binding length, anti-loosening structure, widely used for automobile wire harness bundling, pipeline fixing in passenger cars, new energy EV chassis and interior trims.
Our platform provides one-stop service: custom injection mold design, mold manufacturing & mass production of finished cable tie fasteners, fully compliant with automotive industry standards.
Core Mold Design & Manufacturing Technology
1. Gear Strip Area Precision Machining
The rack gear section is the key functional part of the cable tie, requiring high dimensional consistency and smooth tooth surface to guarantee stable self-locking force.
Adopt high-hardness mold steel (S136 / NAK80) with vacuum heat treatment, high wear resistance for long-term mass production;
Gear tooth cavities processed by high-precision CNC wire EDM & grinding machine, tooth tolerance controlled within ±0.005mm;
Uniform draft angle on each gear tooth, no undercut, smooth plastic filling without flash or burrs;
Optimized runner layout to ensure balanced melt flow along the long strip, prevent shrinkage mark & warpage on gear surface.
2. Product Demolding Optimization Solution (Solve Part Sticking Issue)
Long thin strip cable tie easily sticks to the cavity during ejection, causing deformation or breakage. Our mold structure solves this problem:
Install multiple small diameter ejector pins evenly distributed on the cavity side (gear tooth zone & mounting base position);
Synchronous ejection design: ejector pins push the whole cable tie strip evenly when mold opens, avoid single-point stress & product bending;
Polished cavity surface + reasonable draft angle reduce adhesion force between plastic part and mold steel;
The snap mounting head at the end adopts independent sliding core structure, smooth release without damaging the buckle clip structure.
Platform Service Highlights
Custom mold development based on customer 2D/3D drawings or samples;
