HG - External grinding machine

Universal heavy duty grinding with moving table
HG External grinding machine DANOBAT
HG External grinding machine DANOBAT

This horizontal cylindrical moving table grinding machine range has been designed to fulfil the requirements of a wide range of applications that combine external, internal, face and taper grinding of components such as turbine shafts, large transmissions, axles for rail units and landing gear components, among other examples. Depending on the application corundum, CBN or diamond wheels can be used.

The machine base and sub-assemblies are made of stabilized pearlitic cast iron. HG grinding machines can be equipped with a wide range of wheelhead configurations: straight, angular and “B”-axis which is driven by an integrated torque motor. Wheels are assembled on hydrostatic bearing spindles, roller bearing or on DANOBAT designed electric-spindles.

In order to obtain the maximum machine performance, HG machines can be equipped with in-process measuring systems, automatic wheel balancing system incorporating gap and crash, axial positioning system and taper correction, etc.

  • Applications from 1500 mm up to 5000 mm in length.
  • Precision: MDM- Built in house. Absolute multi-diameter measuring system, for in-process and post-process measuring.
  • Maximise productivity: Modular wheelhead. Extensive portfolio of wheelhead options for allowing multiple operations in a single set up. Single/Double wheelhead.
    • External spindles
    • Internal spindles
    • Measuring systems
  • Swivelling B-axis. Repeatiblity:  ±1 µm on 650 mm radius.
  • Availability
    • Critical components built in-house, such as, workhead, B-axis, wheel spindles and MUCH MORE!
    • Exchange program. Premium, service at a minimum cost, without third-party intervention

Workpiece length: up to 5000 mm

Workpiece OD: up to 1040 mm

Max. Weight: up to 5000 kg

Machining processes

Internal cylindrical grinding

Internal cylindrical grinding

External cylindrical grinding

External cylindrical grinding

Superfinishing

Superfinishing

Countouring grinding

Countouring grinding

Eccentric grinding

Eccentric grinding

Unround grinding

Unround grinding

Thread grinding

Thread grinding

Deburring

Deburring

Characteristics

   

HG-62

HG-72

HG-92

Max. distance between centres 

mm

2000

4000

5000

in

78.74

157.48

196.85

Max. diameter to be ground 

mm

500

840

1040

in

19.68

33.07

40.94

Max. weight between centres 

kg

500

1500

5000

lb

1100

3300

11020

Max. grinding wheel diameter 

mm

760

915

1060

in

29.92

36.02

41.73

Max. wheelhead power 

kW

22

45

45

hp

29.50

60.34

60.34

Max. wheel peripheral speed 

m/s

60/100

60/100

60/100

sfpm

11810/19680

11810/19680

11810/19680

Are you looking for other characteristics? Write us

Applications

Machining test
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