Magnetostrictive position measurement systems come into use generally where high reliability and precision are demanded in position and speed measurement.
Over long distances, our contact-free and absolute measuring systems are suitable for all industry-standard interfaces and for a wide range of applications. Even under extreme surrounding conditions, they guarantee a high machine and system availability.
The BTL magnetostrictive linear position sensors from Balluff in a profile design are non-contacting and absolute measuring systems for precisely detecting one or more positions. They deliver outstanding performance in harsh environments, such as in presses, injection molding machines, or gantry robots, since they are made of an hermetically sealed IP67 aluminum housing. The magnets of the position encoder act on the measurement element through the wall of the aluminum profile.
The linear position sensors have flexible installation options. You can get the required position encoder in a floating or captive variant. As floating position encoders, they are attached directly to the moving machine component to be measured and move along with it at a certain distance above and along the profile. The advantage with this: The guiding precision is not subject to stringent requirements. The measurement systems tolerate a horizontal and vertical offset of just a few millimeters.
The most important application for our BTL magnetostrictive linear position sensors in rod design is in hydraulic drive units. They are exceptionally well-suited for use in hydraulic cylinders for position feedback, for molding and rolling mills, or for elevator and hoisting technology.
Since the sensors are installed in the pressure area of hydraulic cylinders, they have to have the same pressure resistance as the cylinder itself. The measurement element is installed in a pressure-rated tube made of non-magnetic stainless steel. The flange seals the high pressure area using an O-ring. Moreover, the electronics are integrated in a protective housing outside of the cylinder on the flange of the rod.
Whenever you need to measure with absolute precision in extreme conditions, you can count on the BTL robust magnetostrictive linear position sensors from Balluff. Our systems are made entirely of stainless steel and are designed in protection classes up to IP69K or for high pressure cylinder applications up to 1000 bar. Their non-contacting working principle guarantees to prevent wear and ensure an almost unlimited service life. Balluff offers the highest tier of reliability and precision, even in harsh environments.
Our multi-redundant magnetostrictive linear position sensors meet the highest requirements for security and availability, even in difficult environments, such as when used in safety-related valves and hydraulic cylinders. They offer up to three independent measurement systems in the same housing and ensure increased operational safety thanks to various interfaces with diverse redundancies.
For use in Ex Zones 0 and 1, Balluff offers pressure-encapsulated BTL magnetostrictive linear position sensors in various rod configurations with various performance profiles. Depending on the application, you receive from us variants for areas that are threatened by gas or by dust. Magnetostrictive linear position sensors that withstand possible explosion hazards are also available for Zone 2.
The housing for the BTL-J-DEXC-TA12 model series is robust and pressure-encapsulated. Its electronics module can be exchanged quickly and easily. This means that these variants meet the requirements set by the oil and gas industries for high reliability and easy service within the Ex zones.
Our BTL-SF magnetostrictive systems for fill level measurement continuously and precisely monitor applications where extreme hygiene levels are required. They are manufactured out of corrosion-resistant stainless steel with a high quality surface finish and rounded edges. As a result, they meet the highest international hygiene standards and enable you to easily implement the strict requirements, such as in the food industry.