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The Voumard®  VM 300 is a universal ID / OD grinding tool specifically designed for machining work pieces with large diameters and / or lengths. The large working space in combination with the extended travelling distance of the spindle head and the optional U-axis provide highest loading capacity and process flexibility. While short work pieces can be ground directly when clamped in the chuck, a variety of manual and automatic steady rests is available for grinding operations with long shafts.

Typical applications are grinding operations on parts for:

  • Hydraulic components
  • Spindles
  • Bearings
  • Gears

Equipment:

  • Four position NC indexing spindle turret permits mul-tiple ID / OD grinding operations with different grinding wheels at the same work piece and combines maximum flexibility with highest grinding accuracy
  • Optional U-axis for extended OD grinding range
  • High precision X- and Z-axis with large travel distances for maximum flexibility
  • Manual or numerical controlled B-axis for angular swivel of the workhead for taper grinding and easier access when loading and unloading large work pieces
  • Optional work head spindle indexing (C-axis)
  • Various dressing tools for conventional and CBN grinding wheels, including a radius dresser for high precision grinding of circular profiles
  • Heavy duty work head spindle with a load capacity of up to 500kg

Technical Data
Voumard 300
Max. external diameter of the chuck or work piece
Over the workhead support, up to 550 mm
In the gap 830 mm
Grinding capacities
internal diameter, up to max. 500 mm
external diameter 550 mm
Max. external dia. in the gap 640 mm
Max. O/D grinding wheel diameter 250 mm (according to spindle type)
Max. recommended depth 300 mm (>300 mm upon request)
Chucking equipment, according to version
Max. compounded weight, up to 500 kg
Programmable rotation speed According to workhead type
X and Z axes
X axis travel 300 mm
Z axis travel version 1 = 600 mm
version 2 = 1000 mm
resolution 0,1 μm
max. traverse speed 20 m⋅min-1
Centre height
over workhead table 200 mm or 300 mm
Dimensions of the machine (L x B x H)
version L7 5518 x 3965 x 2179 mm
version L13 6474 x 4115 x 2179 mm
Weight from 6000 to 8000 kg
All information is subject to change without notice