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
Large appliance housings that must be watertight at the seams and rigid enough not to flex when filled.
Also searched asPrecision injection molded parts · precision moulded components · technical plastic parts · over-molded assemblies
Larger appliance housings combine volume and structure: the wall has to be thick enough for rigidity and thin enough to fill and cool predictably, and the joint between two halves has to resist water in daily use.
We size the tool and the press together and engineer the shut-off, the sealing geometry and the stiffening ribs as a system. Molding is done in-house on presses from 20T to 300T, so the sealing behaviour is verified on production parts rather than argued about between two suppliers.
Specification
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
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.