Integrated measuring system
Guiding and measuring without additional installation space
The new IMScompact integrated position measuring system from Rexroth complements the range of linear guides with integrated measuring systems from size 15, allowing the measuring system for ball rail guides to be integrated into small machines.
IMScompact detects the exact position with a sensor system integrated into the ball bearing carriage. The integration into the carriage ensures a high level of EMC protection. This means that IMScompact is also suitable for use in conjunction with linear motors. The wear-free, optionally incremental or absolute measuring system increases precision and dynamics, particularly in handling and general automation solutions.
IMScompact measures the position of the carriage without contact with an absolute accuracy of plus/minus 20 micrometers per meter and a repeatability of plus/minus one micrometer at speeds of up to five meters per second. For this purpose, a magnetic tape is glued and fixed along the entire length of the profile rail guide.
The steel body of the carriage shields the integrated encoder from magnetic interference fields like a Faraday cage. As a result, it reliably delivers exact values even in conjunction with linear motors. According to Rexroth, the IMScompact is particularly durable thanks to the non-contact, wear-free measuring principle and its insensitivity to dust, shocks and vibrations.
With the exception of the cable outlet on the side of the carriage, the dimensions correspond to those of the standard guides. In most cases, they can therefore be integrated into existing constructions without any design changes. Complete integration into the carriage means that no additional attachments are required. This reduces system costs and avoids interfering contours.
The measuring system has an incremental 1Vpp or TTL interface and an absolute SSI encoder interface. The measuring length is up to 17.8 meters with multi-part rail sections. The use of standard components simplifies design and commissioning. Design engineers configure the linear guides together with IMScompact online.
While the absolute variant is always supplied with a plug, users can also specify an open cable end for the incremental variant. The freely selectable cable length is suitable for cable dragging. Bosch Rexroth offers an external digital display as an accessory for measuring the length of components in fixture construction, for example. as












