Authorised HEIDENHAIN distributors

ACC Systems Ltd

Industrial Automation


Tool touch probes with cable connection


Together with the measuring cycles of the CNC control, the TT 140 tool touch probe enables the TNC to measure tools automatically while they are in the machine spindle. The control saves the values measured for tool length and radius in the central tool file. By inspecting the tool during machining you can quickly and directly measure wear or breakage to prevent scrap or rework. If the measured deviations lie outside the tolerances, or if the monitored life of the tool is exceeded, the control can lock the tool or automatically insert a replacement tool.


Outline specifications:

TT 140
Probe accuracy ≤ ±15µm
Probe repeatability
  • 2σ ≤1µm at a probing velocity of 1m/min
  • Typical values:
  • 2σ ≤1µm at a probing velocity of 3m/min
  • 2σ ≤4µm at a probing velocity of 5m/min
Deflection of probe contact ≤5mm in all directions
Deflection forces
  • Axial: approx 8N
  • Radial: approx 1N
Probe contact Ø40mm or Ø25mm (specify when ordering)
Probe velocity ≤5 m/min
  • Fixing clamps (included) or
  • Mounting base (accessory)
Power supply 10 to 30V
Output signals One HTL square wave signal and its inverted signal
Electrical connection Cable, 3m, in protective sleeve with M23 connector (male), 7-pin

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