Versatile, hard-wired touch probe for tool and workpiece measurement in highly productive conditions. Precise and fast measurements thanks to innovative, face-geared shark360 measuring mechanism with optoelectronic switch signal generation.

TC76 touch probe – The ideal probe for turning machines and pulling measurements

  • Highlights
  • Applications
  • Features
  • Variants
  • Accessories
Wear-free, optoelectronic signal generation
  • The trigger signal is generated via shading of a miniature light barrier
  • Enables much higher measuring speeds and accuracy than with conventional probes
  • Wear-free with long-term stability
Patented and face-geared shark360 measuring mechanism
  • Face-geared measuring mechanism 
  • Maximum measuring accuracy even with off-centre probing
  • Enables pulling and torsion-exposed measurements
  • Constant deflection forces 
  • No preferred direction
Extendible on a modular basis using extensions and elbows
  • Extensions and elbows allow for user-specific adaptation
  • Cranked styli
  • Installation on machine table or wall using optional  socket
  • Tool measurement using stylus with cube
BLUM Workpiece Touch Probes

The TC76 touch probe can be used both for workpiece measurement as well as tool measurement.

Position measurement

Fast determination of current workpiece position (workpiece zero point) prior to machining or after resetting using digital (switching) measurement.

Measurement of Standard Features

Digital (switching) measurement of distances, single points, angles, inside and outside diameters, inside and outside widths on a manufactured workpiece.

Pulling measurement

Fast measurement of inside widths, outside widths and recesses using pulling/pushing measurements in Z+/Z- with the help of cranked styli.

Workpiece inspection

Inspection of the manufactured workpieces for machining errors and adherence to manufacturing tolerance by means of control measurements prior to clamping.

Torsion-exposed measurements

Unlike conventional touch probes, the unique shark360 measuring mechanism also allows for measurements in which a torsional force acts on the measuring mechanism.

Adaptive machining

Determination of parameters for adaptive machining and process control between and after the machining steps.

Coolant load

Reliable and fast measurements in the coolant thanks to modern measuring mechanism with increased measuring force.

Single & mass production

Perfectly suitable for mass production under the harshest conditions thanks to robust design and protection class IP68.

Tool Breakage Detection

Tactile tool breakage detection for use of a stylus with a cube-shaped stylus tip (e.g. in turning machines)

Tool Length Measurement

Tactile tool length measurement for use of a stylus with cube-shaped stylus tip (e.g. in turning machines)

Tool Radius Measurement

Tactile tool radius measurement for use of a stylus with cube-shaped stylus tip (e.g. in turning machines)

Wear compensation

Tool wear is compensated for by taking measurements on the workpiece and comparing these with the nominal dimension.

Temperature compensation

Compensation of the temperature-dependent thermal behaviour of machining centres.

Touch probe TC76
Additional product features
  • Max. probing speed: 2 m/min
  • Repeatability: 0.4 µm 2σ
  • Protection class: IP68
  • Approach directions: ±X, ±Y, ±Z

Additional information can be found in the relevant brochure and in the operating manual.

Touch probe TC76
Extension options

A full range of accessories is available for the TC76 touch probe, providing optimal solutions for customer-specific applications:

  • Various sockets
  • Pneumatically operated protection sleeve
  • Elbows
  • Extensions
  • Various styli
Quickstart measuring cycle packages

Quickstart measuring cycles for BLUM workpiece touch probes are user-friendly subroutines of the machine control. They can be used for workpiece referencing as well as for measuring during the production process.

The following measuring cycle packages are available for the TC76 touch probe:

  • Quickstart
  • Quickstart T
  • Quickstart Z
  • Quickstart M


Workpiece and tool measurement in the micro machining centre
Workpiece and tool measurement in the turning centre