Laser light barrier with separate transmitting and receiving unit for non-contact tool measurement and fast tool breakage detection under the harshest conditions. Precise and reliable thanks to the latest DIGILOG technology, high-quality laser optics and the unique BLUM protection system.

LC53-DIGILOG – Compact laser measurement system with separate transmitter and receiver unit

  • Highlights
  • Applications
  • Features
  • Accessories
In-process reliability and precision
  • No interfering contour in the working area when installed on the machine wall
  • Non-contact measurement of all tool types, shapes, and cutting materials
  • Recognition of changes in geometry such as tool cutting edge wear or tool breakage
  • Run-out monitoring detects bad tool holders and soiling
  • Innovative quick mounting system
  • Only two connecting lines
  • Low-manpower, automated operation
Unique DIGILOG Technology
  • Short measuring and testing time
  • Thousands of measuring values of all tool cutting edges per second
  • Evaluation of a data stream
  • Dynamic adjustment of the measuring speed according to the nominal tool rpm
  • Automatic filtering of dirt and cooling lubricant residue on tool
  • DIGILOG calibration with integrated run-out monitoring
  • In-process reliability under coolant in a new dimension
High-precision laser optics & protection system
  • High-precision laser optics for optimum performance under the harshest conditions
  • Greater flexibility in determining the measuring position
  • Maximized homogeneity of beam shape for optimum results even under coolant mist
  • Extremely powerful stream of barrier air to provided optimum protection for the optics
  • Explosive cleaning of the aperture
BLUM standard measuring cycles

The measuring cycles for BLUM laser measuring systems can be used to measure and monitor over 90 % of all conventional cutting tools. The measuring cycles are available for many conventional controls. Your local BLUM-representative will gladly inform you about the range of features for your control.

Tool Breakage Detection

Breakage detection of centric tools such as drills, mills, engraving tools, taps and reamers.

Tool setting

Non-contact tool setting in length and radius at nominal speed including compensation of dynamic spindle drift at high rotational speeds.

Single cutting edge monitoring

Monitoring of tools for broken or missing cutting edges.

Tool Form Measurement

Setting and monitoring of tools with circular cutting edge geometry in length, radius and cutting edge radius.

Tool Form Monitoring

Monitoring for cracks or wear by scanning the tool cutting edges.

Wear compensation

Compensation of tool wear using measurements between the machining steps. The wear value is stored as an additive correction value in the tool offset memory.

Temperature compensation

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

Spindle Control

Recording and documentation of spindle wear for preventive maintenance

* The technology cycle is available for selected controls.


Rapid run-out monitoring in less than 1 second for high production machining centres.

* The technology cycle is available for selected controls.


Length, radius and angle measurement on tools with angular edges such as spot facers, engraving mills, etc.

* The technology cycle is available for selected controls.


Monitoring of conical cutting tools such as conical thread mills/formers, chamfer cutters, end mills, etc.

* The technology cycle is available for selected controls.


Cutting edge monitoring by laser measuring system at freely definable tool geometry.

* The technology cycle is available for selected controls.


Radial high-point search by leaser measurement to record the intervention point of turning and milling tools.

* The technology cycle is available for selected controls.


Alignment and orientation of tools to compensate for tool change errors in turning tools, ultrasonic tools, etc.

* The technology cycle is available for selected controls.

Adaptive machining

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

Technical data
System distance500 mm1000 mm1600 mm2200 mm
Min. tool Ø (breakage)0.4 mm0.5 mm0.5 mm0.7 mm
Min. Tool Ø (measure)1 mm1 mm1 mm1.5 mm
Repeatability2.5 µm 2σ4.5 µm 2σ6 µm 2σ10 µm 2σ
Mounting set

Intelligent mounting set for easy installation Retrofitting

  • Minimal mounting effort with only one threaded hole on the machine wall
  • Convenient alignment of transmitter and receiver
  • Mounting panels available for various applications
  • 3D ToolControl: Detailed representation of wear and defects on the tool cutting edges
  • SpindleControl: Visualisation and documentation of spindle wear for preventive maintenance
  • Specification of warning and tolerance limits
  • ...


Modern machine tools used for unmanned machining must be equipped with sensors for reliable process monitoring. In this scenario, LaserControl systems can be used for precise tool setting and tool monitoring.