Detailed Introduction

This medical multi-cavity injection mold is specially developed for full-set clinical respiratory nebulizer mask plastic consumables, optimized for medical certified POM+PA alloy to meet cleanroom biocompatibility standards and eliminate flow lines and micro burrs on transparent gas circulation components.

The split fixed-moving two-plate mold adopts symmetrical multi-row cavity layout to raise single-shot production output for all parts shown in the picture: adult & child transparent nebulizer masks, atomizer main cylinder, curved mask fixing clips, breathing circuit connecting caps, sealing diaphragms and soft gas pipeline joints. Each component cavity is an independent embedded insert for quick disassembly, replacement and deep sanitization cleaning. All molding surfaces receive multi-stage medical mirror polishing to remove internal dead corners and surface haze, eliminating post-molding secondary deburring and polishing processes.

Independent distributed cooling pipelines are arranged for every cavity to stabilize mold temperature during continuous POM+PA injection molding, effectively restrain differential shrinkage, thin mask shell warpage and curved clip deformation. Built-in precision slide locking blocks maintain stable clamping force during long-term cleanroom mass production, avoid flash on thin-wall transparent edges and tiny connecting structures, and extend mold service life under cyclic medical plastic molding.

Complete Precision Machining Workflow

1. 5-axis CNC rough milling for mold base outline and irregular curved mask 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 curved clip, thin mask wall and pipeline joint contours
5. Multi-stage medical mirror polishing to achieve high light transmittance, residue-free transparent 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 respiratory medical device drawing tolerance standards. Full customization is supported based on nebulizer mask 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 sealing performance, light transmittance and dimensional consistency of inhalation therapy disposable consumables.

Specification Table