Mining & CrushersImpact Crusher / Hammer Mill
Rotor disc / rotor body (impact crusher rotor)
Structural casting – fatigue loading from cyclic impact. Blow bars attached – rotor must be balanced after blow bar installation. Bore: H6/k5 tolerance for shaft.
Specifications
Material
Cast Steel ASTM A148 Gr105-85 / Gr120-95 or low alloy (structural – not wear material)
Material Class
Cast SteelLow alloy
Applicable Standards
ASTM A148 Gr105
Service Conditions
impact loading
Common Processes
Resin sand / no-bake; Q&T
NDT & Inspection
UT (Level 1–2); MT; dimensional (bore, face runout); hardness; dynamic balance (assembled rotor)
Typical Specs & Notes
Structural casting – fatigue loading from cyclic impact. Blow bars attached – rotor must be balanced after blow bar installation. Bore: H6/k5 tolerance for shaft.
⚠ Caveats
Blow bars attached – rotor must be balanced after blow bar installation.