Detailed Introduction

This medical multi-cavity injection mold is developed for full-set supporting plastic parts of clinical atomizer masks, optimized for medical certified POM+PA alloy to meet cleanroom biocompatibility standards and eliminate flow lines and micro burrs on transparent airflow components.

The split fixed-moving two-plate mold adopts symmetrical multi-row cavity layout to lift single-cycle output for all components shown in the picture: two types of transparent atomizer mask shells, T-shaped valve spuds, multi-spec sealing rings, one-way valve core assemblies and positioning limit strips. Each micro component cavity is an independent embedded insert for quick disassembly, replacement and deep sanitization cleaning. All molding surfaces undergo multi-stage medical mirror polishing to remove internal dead corners and surface haze, removing post-molding secondary deburring and polishing procedures.

Independent distributed cooling pipelines are laid out for every cavity to stabilize mold temperature during continuous POM+PA injection molding, effectively restrain differential shrinkage, thin transparent mask wall warpage and slender valve rod deformation. Built-in precision slide locking blocks maintain stable clamping force under long-term cleanroom mass production, avoid flash on thin sealing edges and tiny valve 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 slender valve rod, thin sealing ring and curved mask wall 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 atomizer mask accessory 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 precision, light transmittance and dimensional consistency of respiratory inhalation auxiliary consumables.

Specification Table