Cylindrical Grinding Applications 1 Machine Model - K130X300P (SPM) Component Name - Tube shaft Material - 45C8 Hardness - 45-52HRC Grinding allowance - 0.2mm on Dia No.of Grinding setup / Passes - One Achievable Accuracies Size tolerance - 31.7+_0.01 Circularity - 0.003mm. Cylindricity - --- Surface finish - Ra 0.4/Um Production rate Pcs per hour (100% efficiency) - 60