• CNC Semiautomatic Hob-Grinding Machine VZ-721F4

CNC Semiautomatic Hob-Grinding Machine VZ-721F4 used for grinding along front surface area of the grinding wheel with cooling a single-thread, multiple thread of the shank and arbor-type hobs, also with closed-type chip grooves. The machine presented in a horizontal arrangement of the welded frame in gray cast iron. The optimum form of the frame and the extra ribs give high rigidity. Manufacture of basic parts made of cast iron adds nodes to high rates of vibration. The base of the machine serves as a frame on which are mounted the necessary Assembly units of the machine. Special device SINUMERIK 840D CNC device ensures the quality and proper operation. With the powerful system diagnostics, the system displays the parameters required by the operator to monitor the state of the drive and grinding parts. In addition, the standard software of CNC system mounted the original system of preparation of control programs. The system automatically generates a control program for processing of wheel dressing and hob.

Download the techno-commercial offer (specimen, PDF)
The parameters marked with (*) are specified at the stage of the technical task coordination.
Product Indicators, machined:
Size of the blank to be installed Min./max. diameter of the hob, mm: 40/200

Max. depth of the chip grooves/modules to be ground, mm: 50/14

Max. length of the arbor-type hobs, mm: 250

Max. length of the shank-type hobs, mm: 440

Limits of the helix angle of the helical chip grooves (left and right ones), deg.: ±30

Face angle, deg.: 0...10

Number of chip grooves: 1...99

Diameters of the hob fitment bore, mm: 16,22,27,32,40,50,60
Parameters of working and adjustment travels:
Max. working travels along controlled coordinate axes: Х-axis, m/min 10
Y-, Z-axes, m/min 6
A-axis, rpm 30
C-axis, rpm 2
Number of controlled axes 5
Performance tool that is installed on the machine:
Dimensions of the installed wheel, mm Max. diameter of the grinding wheel to be installed, mm: 250
Indicators of primary and secondary movements:
Discreteness of travel assignments along coordinate axes linear, mm 0,001
circular, deg. 0,001
Spindle speed, rev / min 2000...4500
Indicators Power of machine:
Power of the main motion motor, kW 4
Parameters of accuracy and roughness:
Аccuracy and roughness of samples machining Precision and roughness of the single-thread hobs machining cl. ААА
Electrical equipment specifications
AC current frequency, Hz 50±1
Nature of supply AC, 3-phase
Voltage, V 380±38
Dimensional characteristics:
Dimensions (LxWxH) mm 4700х2420х2290*
Weight, kg 7000

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CNC Semiautomatic Hob-Grinding Machine VZ-721F4

  • Product Code: VZ-721F4
  • Availability: Pre-Order