In order to be able to carry out high-quality milling work, it is essential that the tool length and the zero point in the Z-axis of the CNC machines are measured precisely.
The precision tool length sensor enables fast, precise and automatic measurement of the tool length of milling cutters, drills etc. after each tool change, as well as tool breakage monitoring.
Time-consuming manual calibration, such as scratching the workpiece surface, is no longer necessary.
In order to meet the requirements for extremely high precision, the tool length sensor has a solid, finely milled base body with precise 16 mm flank guidance of the sensing cylinder. The functional principle with linear guide is absolutely free of lateral forces, so that even sensitive and very small tools can be measured.

The elimination of electromechanical switching contacts also eliminates any disruptive electrical bounce, so that the switching point is always in exactly the same position.

An inductive sensor is used as a switching sensor, which guarantees a repeat accuracy of between 0.01 and 0.02 mm.
The dimensions of the 18 mm diameter scanning surface have been selected to provide an optimum basis for exact measurements not only for the smallest milling cutter diameters but also for larger milling cutters with roughing geometry.
The low-profile design allows installation on most CNC machines both in fixed mounting and in flying use.

Technical data

• • Low profile design with a precisely guided 18mm sensing face
  • Signal processing through precise inductive sensor
  • No contact bounce due to the absence of mechanical switching contacts
  • Precise repeat accuracy of 2/100mm
  • No movement of the switching point position
  • Measuring point also reliable in the event of vibrations and shocks
  • No reduction in service life due to number of switching cycles
  • No failure due to dirty or corroded contacts
  • Control of the switching point via LED display
  • Length of connection cable 2 m
  • Protection class: IP 65
  • Operating voltage: 10-30 V DC Switching contact: max. 150mA
  • Version: PNP normally closed (NC) , NPN normally closed (NC)

TipThe PNP NC variant is better suited for connection to Con3/4 of the controller, whereas the NPN NC variant is better suited for connection to Con2 of the controller.

Dimension

Scope of delivery

Tool/milling cutter length measuring probe with open cable end

All actions on the handwheel are transferred 1:1 to the software.

The high-quality membrane keypad of the handwheel has 29 Status LEDs. A metal snap disc inside the keypad confirms each switching operation haptically and acoustically with a clicking sound.

The handwheel has more than 30 buttons and controls. Several standard functions such as. Perform reference run, Start job, Break etc. are permanently assigned and can be used immediately. The lower 12 function keys can be accessed via cncGraF with your own functions and macros.

The housing of the handwheel is sealed all round and is magnetic at the rear for easy attachment to the machine. In addition, the handwheel has a built-in Emergency stop switch.

Functions of the handwheel

• • Procedure of all 5 axles via a rotary control (optical encoder). The step resolution is between 0.1 mm and 0.01 mm adjustable (in the cncGraF).
  • Standard functionsExecute reference run, move to zero point, move to parking point, spindle on/off, set zero point X/Y/Z, pump on/off, start job, continue job, pause, cancel.
  • Further functions and macros can be added to the 12 free function keys can be defined. These 12 additional buttons have slide-in windows that allow individual button and field labelling using text strips.
  • The operating speed can be changed during operation.
  • A Emergency stop switch is integrated into the front of the housing.

The handwheel is available in two versions:

Encoder variant (speed)
AdvantageThe display in the software always matches the actual setting on the handwheel. Disadvantage: Endlessly rotatable, without stop at 0 % and 100 %

Potentiometer variant (speed)
Advantage: Noticeable stop at 0 % and 100 % (minimum/maximum can be felt). Disadvantage: The display in the software may differ from the setting on the handwheel, as the speed can be changed both in the software and on the handwheel.

Technical data

• • Weightapprox. 400 g
  • Dimensions (W x H x D): 80.3 x 185 x 50.5 mm
  • Cable length5 m (longer on request)
  • Emergency stop switch
  • Compatibility: Compatible with all current BOENIGK CNC Controllers and from cncGraF 7.1

Scope of delivery

• • Handwheel
  • Connection electronics (NA2)
  • Cable (5 m standard)
  • Quick guide