Cast Aluminium Manifolds
Cast intake and distribution manifolds with machined flanges and pressure testing.
Manifolds cast close to shape with the runners formed, then faced and drilled at every connection. Pressure tested where the manifold carries fluid or boost pressure.
0.05 mm±0.2 mmPer unit on request3.0–6.0 mm
Lead Time
6–9 weeks
Min Order
250 pieces
Certifications
ISO 9001:2015 · IATF 16949
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Flange flatness | 0.05 | mm |
| Bolt pattern | ±0.2 | mm |
| Pressure test | Per unit | on request |
| Wall thickness | 3.0–6.0 | mm |
| Max part size | 600 × 400 × 250 | mm |
| Machined ports | ±0.05 | mm |
Available Materials
- A380 / ADC12
- AlSi10Mg
- LM25 (AlSi7Mg)
Typical Applications
- Intake manifolds
- Air distribution manifolds
- Coolant manifolds
- Pneumatic distribution blocks
- Exhaust after treatment parts
Surface Finishes
- As-cast
- Shot blast
- Machined flanges
- Powder coat
- Conversion coating
Industries Served
- Automotive & EV
- Energy & Oil & Gas
- Industrial Equipment
- Marine
- Agricultural Machinery
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
- Flange 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 3.0–6.0 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
- Cast or fabricated manifold?
- Cast above a few hundred a year and wherever the shape has curves and internal runners. A fabricated manifold needs many welds, and welds are where leaks and fatigue cracks start.
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