Series BG/NT

BG/NT: Technical specifications

• grinding length: 150–640 mm (depending on model)
• mounting flange for grinding wheels from 80–710 mm ∅ (depending on model)
• spindle drive 6.5–45 kW (depending on model)
• spindle with backlash-free preloaded precision bearing, designed for circumferential speeds of up to 50 m/s
• grinding table with four axes:
  • X-axis = main feed axis, grinding tables driven by linear motor
  • Y- and Z-axis = linear pressure axes against grinding wheel
  • A-axis = tilting axis/cutting angle
• W-axis = feed axis grinding wheel, infinitely variable and freely programmable
• digital axis drives on preloaded ball screw Y and Z axis or precision reduction gear A axis, digital axis drive linear motor for X axis
• measuring control with measuring probe integrated in CNC control, digital display of grinding wheel wear, determination of remaining grinding wheel service life
• grinding table in 30° inclined bed design, roller rail guide with direct path measuring system
• workpiece-dependent programming software
• AC servomotor
• automatic interval-controlled grease central lubrication with monitoring and fault indication
• prepared for mounting of clamping devices
• TeamViewer for diagnosis/remote control of CNC and PLC functions

New features of the NT version

• linear motor in the main feed axes (X)
• helical direct gearbox in the A-axis and in the /RV machines also in the B-axis, thus higher rigidity in both axes
• new machine body with enlarged water outlets and optimized, sloped water channels
• new headstock with reinforced bearings and guide system for drive motor with pulley, elimination of multi-spline pulley
• servo drive and ball screw for the headstock with integration as additional axis in the CNC control system
• new measuring control type BEM-Digital/Diamond and BEM AE (ultrasonic)/Diamond for stone compensation
• new PC-based Windows control Andron or Siemens