Linear Position Sensors
Linear Position Sensors

Rugged, absolute linear position measurement from 1 to 300 inches

Balluff Micropulse® linear position sensors have achieved a worldwide reputation for accuracy, stability, and rock-solid reliability. This doesn't happen by chance. Micropulse sensors are designed from the ground up to exceed expectations in demanding industrial environments. Balluff understands that quality, performance, and reliability are only part of the story. Diverse applications require diverse products with features that enhance usability and improve process efficiency.

The most important benefits

  • Industry-proven magnetostrictive technology
  • Rigorous, uncompromising quality testing
  • Usability features that really matter
  • Standard and specialty form factors to cover virtually any application requirement
  • Balluff's global presence means worldwide support and service
  • Industry-leading delivery including unmatched same-day and next-day expediting
  • Not just linear position sensing: Balluff's extensive offerings of industrial sensors and systems provide complete solutions

Product family

  • Magnetostrictive linear position sensors in profile housing

    Maximum flexibility with installation and use

    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.

    Features

    • High resolution of up to 0.5 µm
    • Measuring lengths of up to 7620 mm
    • Measures several positions and speeds at the same time
    • Non-contacting, thus free from wear – no downtimes and a long service life
    • Easy integration with equipment through a variety of interfaces – such as IO-Link, Profinet, EtherCAT, SSI, and analogously programmable output signals – in order to invert, configure, and document the measurement range
    • Three housing variants for flexible and fast installation depending on the space requirements and application
    • Floating and captive encoders
    Magnetostrictive linear position sensors in profile housing
    Magnetostrictive linear position sensors in profile housing

    Magnetostrictive linear position sensors in profile design guarantee a high rate of efficiency and quality in the production of concrete blocks. In a concrete block machine, they simultaneously measure the axial position of applied load and form lifting movement in an extremely reliable manner.

  • Magnetostrictive linear position sensors for industrial hydraulics

    Pressure-rated measurement systems for a variety of cylinder applications

    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.

    Features

    • High resolution of up to 1 µm
    • Measuring lengths of up to 7620 mm
    • Measures several positions and speeds at the same time
    • Programmable output signals – invert, configure, and document the measurement range
    • Flexible installation thanks to various thread types
    • Non-contacting, thus free from wear – no downtimes and a long service life
    • Expanded measuring possibilities with multi-magnet technology
    • Easy integration with equipment through a variety of interfaces – such as IO-Link, Profinet, EtherCAT, SSI, and analog
    Magnetostrictive linear position sensors for industrial hydraulics
    Magnetostrictive linear position sensors for industrial hydraulics

    The BTL Compact – integrated in the hydraulic cylinder of a hydraulically actuated servo drive – ensures safe, reliable, and optimal control of the flow.

  • Magnetostrictive linear position sensors for extreme environments

    Cylinder feedback systems for the most severe environmental conditions

    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.

    Features

    • Rugged stainless steel housing
    • Exceptionally shock- and vibration-resistant
    • Extreme waterproofness, IP69K
    • Temperature range of -40 to +85 °C
    • High-pressure resistance rated up to 1000 bar
    • Resolution of up to 1 µm
    • Measuring lengths of up to 7620 mm
    • Non-contacting, thus free from wear – no downtimes
    Magnetostrictive linear position sensors for extreme environments
    Magnetostrictive linear position sensors for extreme environments

    Robust magnetostrictive linear position sensors correctly signal the position of the piston and enable a smooth drilling process.

  • Redundant magnetostrictive linear position sensors

    Maximum system availability and safety, even in severe 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.

    Features

    • Double- or triple-redundancy design
    • Temperature range of -40 to +85 °C
    • Analog and digital interfaces
    • Flexibly adjustable measurement range and signal inversion via software
    • Settings can be copied to all three measurement channels
    • Durable thanks to robust mechanical construction
    • Non-contacting and thus free from wear
    Redundant linear position sensors
    Redundant linear position sensors

    With redundant linear position sensors, up to three independent measurement sections and three independent electronics modules are compactly integrated in a single rod.

  • Magnetostrictive linear position sensors for explosive areas

    Pressure-encapsulated linear position sensors in all Ex zones

    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.

    Features

    • Suitable for Zones 0, 1, and 2
    • Measurement ranges of up to 7620 mm
    • Absolute output signal with high resolution of up to 5 µm
    • Pressure-rated up to 600 bar
    • Range of interfaces available
    • Space-saving housing
    • Fast commissioning through characteristic curve adjustment
    • Many international certifications, such as IECEx, ATEX, and CSA
    Magnetostrictive linear position sensors for explosive areas
    Magnetostrictive linear position sensors for explosive areas

    Control and shutoff valves are used in many areas of oil and gas extraction, in refineries as well as in petrochemical plants. The certified magnetostrictive linear position sensors from Balluff ensure reliable and safe operations.

  • Magnetostrictive linear position sensors for fill level measurement in hygenic areas

    The highest standards for hygiene and excellent filling quality thanks to highly accurate fill level measurement

    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.

    Features

    • 100 % stainless steel for unbeatable hygiene standards and a long service life
    • Safe for sterilization (SIP) and cleaning (CIP)
    • Continuous precise measurement in the μm range for excellent filling results
    • Reliable fill level values thanks to foam compensation system
    • International certificates such as 3-A Sanitary Standard, FDA and EHEDG
    • Tri-clamp mounting
    • Non-contacting and thus free from wear
    Magnetostrictive linear position sensors for fill level measurement in hygenic areas
    Magnetostrictive linear position sensors for fill level measurement in hygenic areas

    The BTL-SF magnetostrictive systems from Balluff are characterized by continuously precise measurements in applications that demand an exceptionally high level of hygiene. They are made out of corrosion-resistant stainless steel with a high quality surface finish and have rounded edges.