Custom Online Low-Pressure Casting Services

 Low-pressure casting uses gas pressure (0.01-0.05MPa) to steadily push molten metal from below into the mold.

Core Features and Advantages:

1. Controlled Filling:

   • Laminar flow reduces oxidation and slag inclusion.
   • Porosity rate <0.5%, ideal for complex thin-walled parts (wall thickness 2-5mm).

2. High Material Utilization:

   • No risers are needed, achieving a metal yield >95% (compared to ~70% in gravity casting).
   • Reduces energy consumption by 20%.

3. Precision and Consistency:

   • Dimensional tolerance: ±0.2mm.
   • Surface roughness: Ra 6.3-12.5μm, enabling near-net-shape production for parts like automotive suspension arms and motor housings.

4. Process Versatility:

   • Compatible with aluminum, magnesium, and copper alloys.
   • Integrates localized pressurization techniques to eliminate shrinkage defects.

What you get when you order low-pressure castings from us. The pressurization equipment, the molds and the machining cells all sit in one 34,000 m² facility in Pingdu, Qingdao, where we have been pouring metal for more than 20 years. So when a thin-wall section shows shrinkage, the fix does not wait on a subcontractor’s schedule.

Quality control runs in three stages: incoming material verification, in-process monitoring, and full dimensional inspection before shipment. For pressure-critical parts we add Nikon XT H 320 industrial CT scanning, which finds internal porosity that surface inspection never will. Hexagon CMMs cover the dimensional side. A spectrometer confirms alloy chemistry against your specification.

Wondering whether low-pressure casting justifies the tooling cost at your volume? It usually does when the part needs thin walls, airtightness, or porosity below 0.5 percent — transmission housings, motor end covers, pump impellers. For simpler geometries at similar volumes, gravity casting costs less per mold. Large iron and steel parts suit sand casting better, while the finest surface detail belongs to investment casting. Machining after casting is done in-house — see CNC and lathe processing.

Upload your drawings and we will return pricing with free DFM analysis. Parts ship to buyers across Germany, France, the United States, the Czech Republic, Spain, the Netherlands, South Africa, Mexico, Brazil, South Korea and Japan, with inspection records supplied per our quality assurance process.