Battery & Inverter Housings (Die Cast)
Cast enclosures for battery modules and inverters, with sealing faces and cooling paths.
Housings for electrified drivetrains, where the seal, the cooling path and the mounting stiffness all have to be in one casting. The sealing face is machined and leak tested.
8–12 weeks
250 pieces
ISO 9001:2015 · IATF 16949
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sealing | To IP67 / IP69K | - |
| Seal face flatness | 0.05 | mm |
| Wall thickness | 2.5–5.0 | mm |
| Leak test | Per unit | standard |
| Cooling path | Cast or machined | - |
| Max part size | 800 × 600 × 200 | mm |
Available Materials
- AlSi10Mg
- A380 / ADC12
- AlSi9Cu3
Typical Applications
- EV battery module housings
- Inverter enclosures
- DC-DC converter bodies
- Charger housings
- BMS enclosures
Surface Finishes
- Conversion coating
- Powder coat
- E-coat
- Machined sealing faces
- Internal coating
Industries Served
- Automotive & EV
- Energy & Oil & Gas
- Rail
- Marine
- Renewable Energy
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Tolerance
- Seal face flatness at 0.05 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
- Part size
- Wall thickness at 2.5–5.0 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Order size
- Minimum order is 250 pieces, where setup and tooling are amortised across the batch and per-part cost settles around cycle time and material. Below that quantity the same part costs more per piece, not less.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- First article inspection to AS9102, because this family carries an aerospace or automotive certificate
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Why machine the sealing face on a battery housing?
- Because the joint has to be vapour tight over years of thermal cycling. Cast flatness alone will not hold an IP67 seal, and a gasket only compensates for so much.
Related part families
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Cast heat sinks with tall thin fins, for electronics that need volume rather than a machined block.