Centrifugal Casting

How Centrifugal Casting Delivers Unmatched Performance

Centrifugal casting is at the core of the Wieland Lone Star manufacturing process. With this method, clean molten metal heated to the optimal temperature is poured into a rotating mold. High-speed rotation generates centrifugal forces many times greater than gravity (typically 50–100 Gs or more), forcing the metal outward against the mold wall for perfect uniform distribution and intense compaction during solidification.

This produces:

• Exceptionally dense castings with minimal voids
• A finer, more refined grain structure than other casting methods
• Directional solidification (from outer diameter inward), which drastically reduces defects like shrinkage cavities, gas porosity, blowholes, and inclusions
• Natural purification: Impurities, oxides, and lighter elements migrate to the inner bore, where they are easily removed during machining, resulting in purer, more homogeneous material

Centrifugally cast parts exhibit superior material integrity and mechanical properties, including higher tensile strength, yield strength, elongation, fatigue resistance, and impact toughness, often 20% to 30% better than static castings of the same alloy.