Detailed Introduction

This medical tweezers injection mold is professionally engineered for medical disposable plastic tweezers with complex curved and buckling structures, solving undercut demolding difficulty, surface burr and product deformation issues of thin medical plastic parts.

The mold is divided into front fixed plate and rear moving plate. The fixed side forms the outer curved contour of tweezers, while the moving side contains core insert matching tweezers’ inner profile, equipped with independent lateral slide mechanism to complete undercut demolding for tweezers clamping end without damaging finished products. Four corner guide pins ensure high parallelism mold closing to prevent flash; multi-point distributed cooling channels around the curved cavity balance mold temperature and effectively reduce warpage of thin medical tweezers. All molding surfaces are mirror polished to avoid tiny burrs that may scratch medical contact surfaces, complying with medical safety standards.

Complete Precision Machining Workflow

1. 5-axis CNC rough milling for mold base outline and curved tweezers cavity rough forming
2. Vacuum stress relief heat treatment to stabilize steel hardness and minimize thermal deformation
3. Precision surface grinding to control mold plate flatness and parallelism within ±0.002mm
4. Sinker EDM & wire cut WEDM for intricate curved tweezers profile and slide matching gaps
5. Medical-grade multi-step mirror polishing to achieve smooth non-irritating cavity surface
6. Optional non-toxic anti-rust coating compatible with medical PP, PE raw materials

All mold components pass full 3D coordinate measuring inspection to meet strict medical drawing tolerance standards. Custom development is fully supported based on medical tweezers samples or engineering drawings: mold steel grade, slide stroke, cooling circuit layout and surface finish can be adjusted according to medical plastic material, wall thickness and daily production capacity. The split two-plate layout simplifies mold disassembly and dust-free maintenance, greatly lowering reject rates of medical disposable tweezers.

Specification Table