Project summary
The product was a plastic housing for a medical scanning or testing device. The housing needed a clean exterior surface, controlled upper and lower shell assembly, stable screw boss strength and repeatable batch quality.
Manufacturing challenge
Medical housings often combine visible surfaces with internal structural features. If the wall thickness around bosses and ribs is not controlled, the outside surface may show sink marks. If the parting line or gate location is not considered early, the cosmetic surface may be affected.
The assembly gap also needed attention. Even a clean molded surface is not acceptable if the housing halves do not close evenly or if screw bosses deform during assembly.
Huanze solution
During DFM, we reviewed wall thickness, boss structure, rib ratio, parting line, gate location and ejector layout. The mold strategy focused on reducing cosmetic defects and keeping assembly features stable. In trial molding, samples were checked for surface cleanliness, gap consistency, screw boss strength and key dimensions.
For production, we controlled material drying, mold temperature, holding pressure and cooling time to reduce batch variation.
Project value
The engineering workflow helped the customer move from housing design review to mold trial and production validation with fewer appearance and assembly risks. This case is closely related to our medical scanner housing product page and plastic housing molding service.