• MK1420MK1432MK1450MK1463
  • CNC Universal Cylindrical Grinding Machine

    • Features of the machine tool performance and structure

    As the series CNC machine products, MK1420/1432/1450/1463 CNC universal cylindrical grinding machines are independently developed upon several decades of applying new technologies and rich experience of designing and manufacturing CNC grinding machines. Characterized by universalization, high-degree modularization, high precision, high rigidity, high adaptability,easy to operate and reliable performance, these machines are suitable for machine tool spindle, shaft parts cylinder and cone internal/external grinding in workshops of military industries, aviation industry, aerospace industry and precise machining. 

      • With integral protective cover, the machine tool is convenient for maintenance and in conformity with human engineering requirements.
      • With a sleeve type hydrostatic/hydrodynamic mainshaftingadopted for the grinding wheel spindle, the machine tool features on the high rotary precision and good rigidity. The roundness of chuck grinding internal/external surface is obviously superior to the national standard.
      • With our know-how of work head mainshafting, the machine tool features on the high precision and good rigidity.
      • With two-axis linkage feeding, the machine tool is equipped with worktable (Z axis) and wheel head (X axis) drivenbyAC servomotor and ball screws. The minimum setting unit is 0.1μm, while the maximum fast feed speed can reach 5m/min.
      • The machine tool can be provided with various types of diamond dressers (installed on the rear side of the work head) according to the needs of customers, thus realizing precise numerical control dressing for complex wheel profileand automatic compensation.
      • The machine tool is provided with an imported or a domestic active measuring device, thus realizing the closed-loop control of grinding process.
      • The machine tool adopts advanced CNC system and is provided with all-around controlling functions including grinding program changes, work-piece quality control, machine condition monitoring, fault self-diagnostics, abnormal alarm, and convenient menu type interface input.

    Specifications 

    Specification Unit MK1420 MK1432 MK1450 MK1463
    Distance between Centers mm 500 750 750 1000 1500 1500 2000 2500 3000 1500 2000 2500 3000
    Height of center mm 125 160 180 275 335
    Maximum grinding diameter mm Æ200 Æ320 Æ500 Æ630
    Maximum workpiece weight between centers kg 50 100/150 1000 1000
    Control System   FANUC     SIEMENS
    Grinding wheel (max) OD × W × ID mm Æ400/Æ500×40/50×Æ203 Æ500/Æ600×50/60×Æ203/Æ305 Æ750×75×Æ305
    Linear speed mm/sec 35/45
    Feed speed mm/min 0.05~5000
    Minimum setting unit mm 0.001
    Worktable Type   Two layer conical degree adjusting worktable
    Feed speed mm/min 0.05~5000
    Minimum setting unit mm 0.001
    Work head Center   MT. NO.4/MT. NO.5 MT. NO.6
    Rotating speed r/min 30-300 (stepless) 15-150 (stepless)
    Tailstock Center   MT. NO.4/MT. NO.5 MT. NO.6
    Travel of center mm 25/60 80
    Internalgrinding Range of internal grinding mm Æ13~Æ80 Æ16~Æ125 Æ50~Æ200
    Max. length of internal grinding mm 100 120 200
    Max .workpiece weight be held by chuck kg     60
    Electrical system Power of wheel spindle motor Kw 7.5/11 11/18.5 18.5
    Torque of wheel head feeding motor N.m 8/12(FANUC)
    11/16(SIEMENS)    		 22(FANUC)
    27(SIEMENS)    		 30(FANUC)
    36(SIEMENS)
    Torque of worktable feeding motor N.m 8/12(FANUC)
    11/16(SIEMENS)    		 22(FANUC)
    27(SIEMENS)    		 30(FANUC)
    36(SIEMENS)
    Power of work head spindle motor Kw 4.7(FANUC)
    6(SIEMENS)    		 22(FANUC)
    27(SIEMENS)    		 3Kw Cubage dimension
    Power of internal grinding motor Kw 0.55 1.1 2.2
    Hydraulic pump motor Kw 0.75(4P) 0.75(4P) 1.1(4P)
    Motor of wheel spindle bearing lubrication pump Kw 0.75(4P) 0.75(4P) 2.2(4P)
    Cubage dimension Hydraulic and lubricating oil tank L 30 45 45
    Spindle bearings oil tank L 30 45 45


    Working accuracy (standard test specimen)

    Inspection item MK1420/1432/1450/1463
    Roundness 0.003mm/1000mm - Superior to national standard
    Consistency of the longitudinal section diameter 0.008mm/1000mm - Superior to national standard
    Roughness Ra ≤0.32μm

    Specifications, precision and appearance are subject to change without notice because of constantly development of our technology.