Investment-Cast Bronze Bushings & Fittings
Investment-cast bronze bushings and fittings, with close tolerances and a fine surface finish from the lost-wax process.
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Precision Casting Parts
Investment-Cast Housings & Mounts
Investment-cast housings and instrument mounts, with thin walls and machined mounting faces where accuracy matters.
| Part weight | 5 g – 15 kg |
|---|---|
| Dimensional | ±0.05 mm general (to print); ±0.02 mm on critical features |
| Surface | Shot blasted, tumbled, passivated or electropolished |
About this part
What it is and why it is made that way
Investment casting holds thin walls and fine detail that sand casting cannot, which is why it is used for instrument housings and sensor mounts. The wall thickness stays uniform across the casting, and the mounting face and bore are machined so the part registers against what it bolts to.
- Uniform thin walls held through the casting
- Mounting faces and bores machined after casting
- Fine surface finish straight from the mould
- Stainless, alloy steel and aluminium grades
Materials
- Stainless 304 / 316L
- Carbon steel 1045 / 4140
- Alloy steel 17-4PH
- Bronze and brass (CuSn10, CuZn37)
- Aluminium A356
Production processes
- Investment casting (lost wax)
- Lost-wax casting
- Shell moulding
- Deburring and shot blasting
- CNC finish machining
Typical applications
- Instrument and sensor housings
- Thin-wall covers and shells
- Medical device components
- Food-grade equipment fittings
Specification
Technical detail
The ranges below are what this shop typically holds. Anything tighter than the baseline is possible — send the drawing and we will confirm it against your specific tolerances rather than quote from a table.
| Part weight | 5 g – 15 kg |
|---|---|
| Dimensional | ±0.05 mm general (to print); ±0.02 mm on critical features |
| Surface | Shot blasted, tumbled, passivated or electropolished |
| Porosity | ≤1% gas porosity on critical surfaces, to agreed specification |
| Inspection | X-ray and dye penetrant testing available on request |
| Wall thickness | 1.5 – 4 mm, held to ±0.3 mm |
| Mounting face | Machined flat to ≤0.10 mm |
| Part weight | 10 g – 3 kg |
Material and finish are yours to choose. The lists above are the families this part is normally made in. We will not substitute a grade or change a tolerance without telling you first — and asking.
In the same process line
Other Precision Casting parts
If this is not quite your part, these are made on the same equipment with the same inspection.
Investment-Cast Bronze Brackets
Investment-cast bronze mounting brackets and fittings, with complex forms reproduced faithfully from the model.
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Investment-Cast Levers & Linkages
Investment-cast levers and linkage arms in stainless and bronze, with the pivot bores machined to a close tolerance.
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Get a quote for this part
Send the drawing and we will quote it against your material, your tolerance and your quantity. One business day, in writing, with a lead time you can plan around.