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28.03.2008
High speed bridge-type vertical machining centres feature a heavy column structure with cross rail integrated into the bed casting to maximise stability and maintain geometric precision
High speed bridge-type vertical machining centres feature a heavy column structure with cross rail integrated into the bed casting to maximise stability and maintain high levels of geometric precision. C Dugard will be launching at the UK's MACH 2008 machine tool exhibition the The Dugard Eagle series of high speed bridge-type vertical machining centres (VMC) - represented by the XP1600.
The Dugard Eagle XP1600 has a table size of 1900mm by 1300mm with axis strokes of 1600mm in X, 1300mm in Y and 700mm in Z and is a 'heavyweight' machine weighing some 22 tonnes.
The table is driven by large diameter pre-tensioned ballscrew and is supported by roller linear guideways with eight blocks to effectively spread the load to the T-shaped Meehanite cast base.
This base is also heavily ribbed in order to fully support loads up to eight tonnes.
* Machining stability and accuracy - a heavy column structure with cross rail is integrated into the bed casting to maximise stability and maintain high levels of geometric precision under interrupted type milling applications and heavy duty drilling from solid.
Linear scales can also be specified for exact positioning as an option to the standard encoders.
The Eagle XP1600 can be customised from three spindle options: direct drive, built-in or as a high torque geared unit.
The direct drive spindle provides a choice of speeds, 6,000, 10,000 or 15,000 rev/min powered by 15kW, 26kW and 38kW motors respectively.
Built-in IBAG low noise, high accuracy spindle units can be specified to provide speeds of 12,000, 16,000, 20,000 or high speed 24,000 rev/min.
The gear-type spindle for heavy duty, high torque milling, can be specified with speeds of 6,000 or 10,000 rev/min.
This gear-type spindle arrangement has a 30kW drive able to deliver 357Nm of torque through its heavier duty, NBT 50 taper.
Axis rapid traverse rates are 30m/min with an acceleration of 0.5G.
There is a choice from two tool magazines using disc or chain.
The disk holds 20 tools, and the chain 32 tools, and there is an option of CNC by Heidenhain or Fanuc.
A chip conveyor is standard with oil skimmer and oil mist cooling while a fourth axis unit can be supplied by C Dugard that would be integrated by the in-house applications team at Hove.
* C Dugard at MACH 2008, NEC, Birmingham, UK, April 21-25, Hall 5, Stands 5230 and 5236.
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