Molded device housing shell
A molded shell with a screen aperture, speaker details and assembly features — tooling, molding and fit handled as one project.
Products · Precision injection parts
Plastic and silicone over-moulded part
A rigid moulding with a soft silicone element bonded in place — two materials, one component, no assembly step.
Also searched asPrecision injection molded parts · precision moulded components · technical plastic parts · over-molded assemblies
Over-molding a soft element onto a rigid part removes an assembly step and stops the soft part from falling off in use. The engineering is in the bond: material pair, wall thickness over the substrate, surface preparation and the mould temperature at the interface.
We design the substrate, the second-shot tool and the mechanical interlock as one system, and specify both materials with you before design approval. The part in the photograph pairs a rigid housing with a soft elastomer insert.
Typical applications
- Grip and handle components
- Seals moulded onto rigid parts
- Kitchen and household tools
- Soft-touch consumer products
Specification
What this class of tool is built to
Our standard specification for this type of tooling, confirmed line by line on the mold design approval sheet before machining starts.
| Mold construction | Two-plate, three-plate, hot runner, stack or family — specified per part |
| Cavity count | Single or multi-cavity, sized to annual volume, cycle time and press tonnage |
| Mold steels | P20, 718H, NAK80, S136, hardened H13 / SKD61 cores |
| Mold work tolerance | ±0.01 mm |
| Machine accuracy | Down to 0.001 mm (Yasoda, OKUMA, GF, Makino) |
| Runner | Cold runner, hot runner or valve gate |
| Surface finish | SPI A1–D3, bead blast, leather grain or your texture |
| Cooling | Machined circuits; baffles or bubblers where geometry requires |
| Ejection | Pins, sleeves, stripper plate, lifters, unscrewing or collapsible core |
| Verification | Swiss Hexagon CMM and Zeiss Contura; dimensional report at T1 |
| Molding | 30 presses from 20T to 300T, in the same building |
| Documentation | 2D/3D drawings, steel and component certificates, parameter sheet, spare parts |
| Lead time | Typically 15–30 days of machining after design approval |
| Tool ownership | Yours — the tool is designed to be transferable |
Values above are our standard capability for this class of tool, not fixed figures for a specific project. Cavity count, steel grade, runner type and finish are agreed with you on the design approval sheet before any steel is cut.
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Next step
Ask for a DFM review and a price for your part
STEP/IGES/X_T files, the resin, your annual volume and target market are enough to get a mold price, a cycle estimate and the risks we can see — usually in 1–2 business days.