Materials and characteristics of machine tool castings
Apr 17,2026
Grey cast iron (HT250-300)
Application: More than 80% of machine tool castings are used for load-bearing components such as bed frames and bases.
Characteristics:
Shock absorption: The graphite structure can absorb vibrations, reduce vibrations during processing, and improve surface smoothness.
Wear resistance: self-lubricating microporous oil storage reduces rail wear and extends service life.
Low cost: low melting point, good fluidity, suitable for casting complex thin-walled structures.
Process adaptability: Combined with resin sand casting, it can achieve low riser and defect free production of single castings weighing over 40 tons.
ductile cast iron
Application: Components with complex stress such as gears and spindles.
Characteristics: The strength and toughness are similar to steel, but the cost is lower than cast steel, suitable for high load scenarios.
cast steel
Application: Heavy duty machine tool frames, couplings, and other components that withstand impact.
Characteristics: High strength, but high cost, requiring heat treatment to improve performance.
Alloy cast iron (such as phosphor copper titanium alloy cast iron)
Application: High precision CNC machine bed.
Features: Increased wear resistance by over 30%, suitable for long-term high-speed machining.
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