Detailed Introduction

This medical multi-cavity injection mold is exclusively developed for micro plastic parts of clinical infusion filters, optimized for medical certified POM+PA alloy to meet cleanroom biocompatibility standards and eliminate molding residue inside liquid flow channels.

The split fixed-moving two-plate mold adopts symmetrical multi-row cavity layout to raise single-shot output for all components shown in the picture: transparent T-shaped liquid guide stems, multi-spec sealing rings, micro positioning pins, cylindrical locking sleeves and filter end caps. Each micro component cavity is an independent embedded insert for quick disassembly, replacement and deep residue cleaning. All molding surfaces receive multi-stage medical mirror polishing to remove micro burrs, flow lines and hidden dead corners, eliminating secondary trimming and cleaning processes after molding.

Independent distributed cooling pipelines are arranged for each cavity to stabilize mold temperature during continuous POM+PA injection molding, effectively restrain differential shrinkage, slender rod bending and transparent thin-wall warpage. Built-in precision slide locking blocks maintain stable clamping force during long-term cleanroom mass production, avoid flash on ultra-small pin and thin ring structures, and extend mold service life under long-cycle medical plastic molding.

Complete Precision Machining Workflow

1. 5-axis CNC rough milling for mold base outline and micro cavity rough forming
2. Vacuum stress relief heat treatment to stabilize steel hardness and reduce thermal deformation under long-run medical POM+PA molding
3. Precision surface grinding to control mold plate flatness & parallelism within ±0.002mm
4. Sinker EDM & Wire Cut WEDM for ultra-fine slender flow rod, micro pin and thin sealing ring contours
5. Multi-stage medical mirror polishing to achieve high-transmittance, residue-free cavity surface
6. Optional non-toxic anti-corrosion surface coating compatible with medical POM+PA raw materials

All mold core, cavity and structural components complete full 3D coordinate measurement inspection to satisfy strict infusion medical device drawing tolerance standards. Full customization is supported based on filter samples or engineering drawings: cavity quantity, mold steel grade, cooling circuit layout and polishing grade can be adjusted according to POM+PA medical certification grade, cleanroom hygiene standards and daily production capacity. The symmetrical multi-cavity layout greatly improves molding efficiency while unifying dimensional accuracy, sealing performance and light transmittance of infusion filter micro medical consumables.

Specification Table