Industries
Aluminium castings for pumps and compressors
Pump bodies, lub oil pump housings, volute covers, pistons, connecting rods and cylinder head covers. Where a part must hold pressure, we choose the process, alloy and metal treatment around that requirement.
What we make for this industry
Components we already supply
- Pump housings and flanged pump bodies
- Lub oil pump bodies
- Volute and pump covers
- Compressor pistons and connecting rods
- Bearings for compressors
- Cylinder head covers
- Probe pockets and end caps
Process and alloys
Gravity die casting (LM25, LM6, LM13) for pressure-tight bodies and pistons; HPDC (ADC12, LM24) for covers and smaller housings.
Pump and compressor parts combine pressure-tight casting with machining and steady replacement demand. They reward process control more than lowest piece price.




Parts shown were made on our lines. Tooling and drawings belong to our customers, so part numbers and customer names are not shown.
What buyers in this industry ask for
Requirements, and how we meet them
Gravity die casting for dense sections, rotary degassing with density index checks, in-house X-ray, and leak testing arranged through a specialist partner. Vacuum impregnation is planned.
Machined in-house with multi-head drilling and tapping, then checked by air gauging.
Alloy chosen for strength and wear (for example LM13 for pistons), with spectrometer verification of every batch.
Batch traceability from melt to dispatch, so a returned part can be traced to its melt and process record.
Related guides: Porosity in aluminium castings · HPDC vs gravity die casting
Send a drawing and annual volume. We reply within 24 hours.
Prefer email? Send your drawing to admin@alcasttech.in, call +91 88886 49050 or WhatsApp +1 857 919 4793.