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Sensor Technology
Control Technology

How a travel sensor replaces two sensors in the machine tool

31. August 2026, 11:25 Uhr

Contrinex combines several measurement functions for spindle monitoring in one device. In addition to a measuring range of up to 20 millimeters, the sensor offers programmable switching points.

The new Travel Sensor from Contrinex detects the position of spindles in machine tools with the highest precision. (Source: Contrinex)
The new Travel Sensor from Contrinex detects the position of spindles in machine tools with the highest precision. (Source: Contrinex)
31.08.2026
Jan Kaulfuhs-Berger
Contrinex has developed a new inductive displacement sensor for detecting the tie rod position of spindles in machine tools. According to the manufacturer, the "Travel Sensor" is available with an analog or digital output and covers a measurement range of 0 to 20 millimeters. Its resolution is ±25 micrometers, and the repeatability is ±75 micrometers.

Continuous Measurement of Tie Rod Position

According to Contrinex, the version with digital output achieves a dynamic resolution of ±5.5 micrometers. It enables continuous monitoring of the tie rod position during processing. Even during a tool change, the sensor continuously captures the position of the tie rod and thus monitors its path.

The displacement measurement is intended to enable precise control of the tie rod position. The solution is particularly aimed at applications where this position needs to be continuously captured during processing and during tool changes.

Three Programmable Switching Points

The sensor has three factory-set switching points at five, ten, and 15 millimeters. They are available in Single Point Mode and Windows Mode and can be freely programmed according to the manufacturer's specifications. The switching points are also included in the process data.

For the analog output voltage curve, five location and voltage points can be programmed using the ACS function. The manufacturer's handheld IO-Link configurator "PocketCodr" can be used for configuration.

Use up to +90 degrees Celsius

For industrial use, the Travel Sensor has a protection rating of IP67. The specified ambient temperature range extends from -25 to +90 degrees Celsius. Thus, Contrinex specifies not only the measurement values but also the environmental conditions for which the sensor is designed.

According to the manufacturer, the solution can replace two conventional sensors. As a result, fewer components are required, and wiring effort is reduced. Additionally, the required installation space within the machine tool is decreased.

Translated automatically from German.
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