Detailed Introduction

This medical multi-cavity injection mold is exclusively developed for respiratory clinical disposable atomizer consumables, fully adjusted for medical certified POM+PA alloy to meet cleanroom production and biocompatibility requirements, effectively avoiding mold residue contamination and internal flow channel micro-defects.

The mold adopts split fixed & moving two-plate structure, with dual symmetrical multi-row cavity zones to raise single-cycle output for full-set atomizer assemblies including main cylinder housings, transparent outer protective sleeves, valve cores, sealing caps, connecting fittings and liquid storage bottles shown in the picture. Each miniature medical component cavity is an independent embedded insert, supporting separate disassembly, maintenance and replacement; all molding contact surfaces undergo multi-step medical mirror polishing, eliminating flow lines, fogging, tiny burrs and dead corners inside liquid/gas flow channels, removing secondary deburring and cleaning procedures after molding.

Independent distributed cooling pipelines are laid out for every single cavity, precisely balancing mold temperature during continuous POM+PA injection molding, greatly restraining differential shrinkage, internal stress and thin-wall warpage of long cylindrical medical shells. Built-in precision slide locking blocks maintain stable clamping force under long-term cleanroom production, preventing flash inside narrow fluid channels and extending mold service life under cyclic medical-grade plastic molding.

Complete Precision Machining Workflow

1. 5-axis CNC rough milling for mold base outline and cylindrical cavity rough forming
2. Vacuum stress relief heat treatment to stabilize steel hardness and reduce thermal deformation during 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 delicate thin-wall cylinder, internal flow channel and miniature valve core contours
5. Multi-stage medical mirror polishing to achieve high light 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 pass full 3D coordinate measuring inspection to meet strict medical drawing tolerance standards. Fully customized development is supported based on customer medical consumable samples or 2D/3D engineering drawings: mold steel grade, cavity quantity, cooling circuit layout and surface 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, surface cleanliness and dimensional consistency of all atomizer inhalation consumables.

Specification Table