Authorised HEIDENHAIN distributors

ACC Systems Ltd

Industrial Automation

HEIDENHAIN TS 640 and TS 740

Workpiece touch probes with infra-red tranmission


The TS 640 and TS 740 are standard workpiece touch probes with infra-red transmission, designed for use in machining centres with automatic tool changing. The TS 740 is designed for high accuracy applications.


Outline specifications:

TS 640 TS 740
Probe accuracy ≤ ±5µm when using a standard stylus ≤ ±1µm when using a standard stylus
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
2σ ≤0.25µm at a probing velocity of 0.25m/min
Deflection of probe contact ≤5mm in all directions (with stylus length L=40mm)
Deflection forces
  • Axial: approx 8N
  • Radial: approx 1N
  • Axial: approx 0.6N
  • Radial: approx 0.2N
Probe velocity ≤5 m/min ≤0.25 m/min
Taper shank
  • With taper shank - see accessories
  • Without taper shank - connecting thread M30 x 0.5)
Signal transmission Infrared transmission with 360° range
Transmission angle of infrared signal 0° or +30° (specify when ordering)
Transmitter & receiver unit SE 540 or SE 640 (specify when ordering)
Switch on/off Infrared signal from SE
Power supply 2 batteries (rechargeable and non-rechargeable) size C, 1V to 4V each
Operating time Continuous duty typically 800h Continuous duty typically 100h

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