CNC Grinding Center TTB ECLIPSE

Compact Precision Grinding Center with dual Grinding Spindles


ECLIPSE grinding performance and accuracy with 2 grinding spindles

  • 2 grinding spindles for optimum grinding efficiency
  • Grinding spindle 1 is for roughing operations; with automatic grinding wheel package exchange
  • Grinding spindle 2 is for finishing operations; with a fixed grinding wheel package
  • Compact design with 4-station grinding wheel package changer
  • Quick replacement of the wheel packs and comfortable access to the tool stations
  • Production units extremely easy to install
  • Cost-effective tool loader E-Loader for extreme flexibility
  • Robot loader with high loading capacity integrated in the machine cabinet


Tool range

  • Min. tool diameter for manufacturing Ø 0.2 mm
  • Max.  tool diameter for manufacturing Ø 12.7 mm
  • Max.  grinding length 200 mm
  • Max.  tool diameter for sharpening Ø 30 mm


Technical features

  • Grinding unit with double spindle:
    bottom: roughing spindle 2,000-12,000 rpm / 9.0 kW
    top: finishing spindle 2,000-12,000 rpm / 4.5 kW
  • Backlash-free linear axes X-Z with hydraulic compensation
  • Rotary axis B with worm drive or an optional direct drive
  • Proven kinematics with extreme reliability
  • Robot loader utilises three pallets with high capacity up to 1,628 workpieces (depending on diameter)
  • NUM control with NUMROTOplus® software
  • Extensive accessories and special units for flexible expansion options




Technical Data - TTB Eclipse

Tool DataFinished Tool Diameter from Solid Material Ø 0,1 - 12,7 mm
Finished Tool Diameter while Regrinding Ø 30 mm max.
Max. Flute Grinding Length 200 mm
Longitudinal X-axisTravel Length 530 mm
Feedrate Range 0 - 15 m/min
Cross Slide Z-axisTravel Length 320 mm
Feedrate Range 0 - 15 m/min
Vertical Y-axisTravel Length 400 mm
Feedrate Range 0 - 15 m/min
Double Spindle Grinding Wheel Head B-axisSwivel Angle of the Grinding Wheel Head 240 °
Max. Grinding Wheel Diameter 100 mm
Spindle Speed Range up to 20,000 rpm
Roughing Grinding Spindle 1 Taper, Automatic Clamping HSK - E50
Finishing Grinding Spindle 2 Taper, Manual Clamping HSK - C50
Roughing Grinding Spindle 1 Power (S6) 9.0 kW
Finishing Grinding Spindle 2 Power (S6) 4.5 kW
Number of Grinding Wheel PackagesWheel Packages for Spindle 1 in Automatic Wheel Changer 4 (optional)
Wheel Packages for Spindle 2 (Manual Clamping)1
Workhead A-axisClamping SystemsW25, W20, B15 / Hydraulic Collet
Tool Shank Clamping Diameter Range 1 - 25.4 mm
Max. Rotary Speed for Cylindrical Grinding 0 - 1,500 rpm
CNC ControlNUM
NUM SoftwareNUMROTOplus
Dimensions of MachineL x W x H 200 x 215 x 210 cm
Weightapprox. 3,800 kg
TTB reserves the right to make changes and/or additions to the information provided, such as technical specifications, design changes without prior notice.