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.

Flanged pump body, aluminium die casting by Alcast Technologies
Flanged pump body
Machined pump housing, aluminium die casting by Alcast Technologies
Machined pump housing
Volute pump cover, aluminium die casting by Alcast Technologies
Volute pump cover
Machined piston, aluminium die casting by Alcast Technologies
Machined piston

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

Pressure tightness

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.

Sealing faces and port threads

Machined in-house with multi-head drilling and tapping, then checked by air gauging.

Wear surfaces on pistons and rods

Alloy chosen for strength and wear (for example LM13 for pistons), with spectrometer verification of every batch.

Traceability on a field failure

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.