Revolutionary roughness measuring systems for machining centres for precise evaluation of surface roughness of workpieces. Fast digital measurement of workpiece position and reliable detection of poor surface quality using analogue measurement.

TC63-RG | TC64-RG | TC76-RG – Globally unique roughness measuring systems for automatic checks in the original setting

  • Highlights
  • Applications
  • Features
  • Accessories
BLUM roughness measuring systems
  • Automated roughness measurement without manual operator intervention
  • Output of roughness parameters Ra, Rz, Rq, Rt, Rmax and Wt
  • Enhanced in-process reliability by elimination of manual and downstream tests
  • Determine problems of the cutting process
  • Use of the expensive tools until the real end of the service life
  • Protected by patents
Unique shark360 measuring mechanism
  • High-precision, face-geared measuring mechanism
  • Wear-free, optoelectronic signal generation
  • Defined deflection direction and constant deflection forces
  • Extremely fast measurements
  • Maximum measuring accuracy even with off-centre probing
  • High measuring resolution for maximum precision and safety
Modern BRC radio technology
  • Reliable and proven transmission technology
  • No influence on other radio systems
  • Sequential use of up to 6 radio measuring systems with one receiver
  • Very long battery life
BLUM roughness measuring systems

Surface roughness gauges by BLUM can be used for the most varied measurement and monitoring tasks in CNC machining centres.

Position measurement

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

Roughness Measurement

Automated roughness measurements on machine tools in mass production. Indirect detection of tool wear and direct inspection for machining errors on workpieces or functional surfaces.

Modular System

The measuring system’s modular design allows for customer-specific adaptation to special measurement tasks. BLUM offers a comprehensive range of accessories such as extensions and elbows for this purpose.

Workpiece inspection

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

Coolant load

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

Mass Production

Perfectly suitable for mass production under the harshest conditions.

TC63-RG roughness gauge
TC64-RG roughness gauge
TC76-RG roughness gauge
Further product features
  • Protection class: IP68
  • Analogue measuring range: 180 µm
  • Resolution | converter resolution: 34.8 mV/μm | 0.067 μm/Digit
  • Sampling rate internal | external: 1 kHz | 1 ms/value or status

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

Receiver systems

For wireless data transmission between BLUM measuring systems and the machine tool, compact receiver systems incorporating the latest transmission technologies are used.

Software RG 2.0
  • Automatic calculation of roughness parameters Ra, Rz, Rq, Rt, Rmax and Wt
  • Flexible definition of warning and tolerance limits per measuring distance
  • Alarm release when exceeding the warning and tolerance limits
  • Immediate processing and editing of the measuring results
  • Providing the tracked data in a log file
Touch Panel TP48-21

Modern touch panel for retrofitting. It is used if visualisation and operation is not possible on the machine control.


BLUM roughness measuring systems for automatic, machine-integrated inspections and measurements of workpiece surfaces. Surfaces can be measured reliably and with high precision using the roughness measuring systems even under the influence of coolant.

Automated roughness measurement in the machining centre using the BLUM TC63-RG roughness measuring system
Roughness measurement on a milling machine using the BLUM TC64-RG roughness measuring system