Components
Aluminium motor housings, end shields and fan covers
End shields, motor and fan covers, terminal boxes, fans and rotor discs for electric motor, alternator and power equipment manufacturers. Cast on high pressure or gravity machines, with bearing seats and spigots machined in-house.
Parts shown were made on our lines. Tooling and drawings belong to our customers, so part numbers and customer names are not shown. See all 51 components →
Process, alloys and envelope
How these parts are usually made
Typical routes for this family. The right process, alloy and limits for your part are confirmed at engineering review.
| Process | Alloys commonly used | Indicative envelope | Typically chosen for |
|---|---|---|---|
| High pressure die casting | ADC12, LM24, LM6 | 20 g – 15 kg; walls from 1.2 mm | Covers, fan covers, terminal boxes and fans at volume |
| Gravity die casting | LM25, LM6 | 200 g – 25 kg; walls 3 – 15 mm | Heavier end shields and frames, lower volumes |
Indicative ranges, not guaranteed values for every geometry. Customer-specific alloys can be arranged on request.
Critical features
What matters on these parts, and how we check it
Machined in-house on CNC turning and VMC; critical diameters checked by air gauging on every part.
Cast rather than machined on HPDC, with draft and fin pitch reviewed at design review.
Flatness controlled at machining; leak testing arranged through a specialist partner where the drawing calls for it.
Rotary degassing checked by density index, and in-house X-ray where the part requires it.
Cast with consistent wall and checked for form before dispatch.
To quote this part
What helps us quote accurately
- Drawing or 3D model with bearing seat and spigot tolerances
- Frame sizes or variants that share a tool
- Annual quantity and call-off pattern
- Alloy, if specified, and any finish
- Existing tooling, if you are moving the part
No final drawing yet? A description is enough to start a technical conversation. Ask for an NDA before sharing sensitive files.
Buyer questions
Common questions
Can you machine the bearing seats as well as cast the part?
Yes. Bearing seats, spigots and mounting faces are machined in-house on CNC and VMC machines, and critical diameters are air gauged, so you receive one finished part with one inspection record.
HPDC or gravity for an end shield?
It depends on size, wall thickness and volume. Thin-walled covers at volume usually suit HPDC; heavier end shields and frames often suit gravity casting. We recommend a process at quotation and explain why.
Do you supply painted or powder coated parts?
Yes, through a long-standing finishing partner, so parts can arrive ready to assemble.
Have a motor housings and end shields drawing? Send it with your annual volume.
Prefer email? Send your drawing to admin@alcasttech.in or call +91 88886 49050. An engineer replies within 24 hours.