This curved exterior cover is a cosmetic part for service robots. At the prototype and low-volume trial stage, the client needed high-fidelity finished parts without high upfront injection mold costs.

We adopted silicone vacuum casting (urethane casting) process to produce the components, delivering parts with precise geometry and high-gloss painted finish for assembly verification and small-batch trial marketing.

High-precision CNC master model is manufactured first. Vacuum silicone mold is poured under controlled environment to avoid air entrapment, faithfully replicating every curved contour and hole features.

Imported polyurethane resin is cast under vacuum condition to eliminate internal bubbles. Strict curing temperature and cycle control prevents part deformation after demolding.

Careful trimming and polishing on parting lines to restore seamless curved exterior surface.

Dust-free spraying workshop for high-gloss white PU coating. Multiple layers of primer and topcoat are applied to realize mirror glossy appearance and strong scratch resistance.

Visual inspection for surface defects; dimensional check on mounting holes; adhesion test for coating layers.

✅ Successfully produced low-volume robot covers with accurate curved geometry, fully matching design specifications

✅ High-gloss white cosmetic surface meets the client’s aesthetic standard for robot prototype display

✅ Avoided expensive hard tooling investment for trial phase; shortened the whole prototype delivery cycle

✅ Verified assembly performance, providing reliable samples for robot function testing and market evaluation

Silicone vacuum casting is an ideal solution for robot housings at prototype and small-batch stages. We support custom robot components via vacuum casting, CNC machining and injection molding. If you have requirements for rapid prototyping or low-volume production of robot appearance & structural parts, feel free to share your drawings for a professional proposal.