Typical Application Scenarios of Construction Machinery Castings

Crawler Travel System: Components such as the drive sprocket, support rollers, and track plates bear high impact and wear, and are mostly made of cast steel.

Boom and Arm: Require high strength and fatigue resistance, often using integral casting or a combination of casting and welding.

Note: Construction machinery castings differ from machine tool castings (such as machine beds). The latter mostly use gray cast iron (focusing on vibration damping), whereas the former emphasizes strength, toughness, and impact resistance, so cast steel has a higher proportion.