Tape Extension Sensors feature integrated pulley.

Press Release Summary:

Designed for limited space applications, POSITAPE® WBR models are equipped with pulley that is mounted directly onto sensor behind tape-feeding unit, enabling pullout angle of measuring tape to be rotated through 90°. Sensors utilize linear and absolute measurement principle without reference operation. Depending on model, measurement ranges reach from 5–65 ft. With linearity tolerance of ±0.10%, sensors can be equipped with analog and digital outputs, achieving resolution of <0.05 mm.

Original Press Release:

The Solution for Tight Spaces: New POSITAPE® Tape Extension Sensors with Integrated Pulley

The new POSITAPE® WBR21 tape extension sensor from ASM has been designed for applications in which space is limited. It is equipped with a pulley that is mounted directly onto the sensor behind the tape-feeding unit.


ASM has enlarged its POSITAPE® tape extension sensor product line with an important feature. The new WBR models are now equipped with an integrated pulley mounted directly onto the sensor, which enables a highly flexible pullout angle of the measuring tape. The WBR sensor solution has been specifically designed for machines with limited space where the tape needs to be deflected. With the integrated pulley the starting angle of the measuring tape is adjustable to a broad range of measurement applications, even in areas that were previously not accessible, for example position measurement in crane outriggers. 

The linear cable extension position sensors of the POSITAPE® series employ a robust stainless steel measuring tape that is coiled onto a precision manufactured drum. The ultra-thin, flexible stainless steel tape (10 millimeters wide, 0.08 millimeters thick) can be guided even on small pulleys and also in opposite direction without impairing the service life of the measuring tape.

With the pulley mounted directly onto the sensor the pullout angle can be rotated through 90 degrees, which allows for an installation that can be flexibly adapted to the available mounting set up.

ASM POSITAPE® tape extension sensors utilize a linear and absolute measurement principle without reference operation. Depending on the model, measurement ranges can reach from 1,500 up to 20,000 millimeters (5ft up to 65ft). With a linearity tolerance of ±0.10 percent the sensors can be equipped with analog and digital outputs (SSI- or CANopen, CAN SAE J1939) achieving a resolution of <0.05 millimeters.

For further information please contact:

Application Support: 630-832-3202

ASM Email: info@asmsensors.com

About ASM:

ASM Sensors, Inc is a leading company in the development, manufacturing and marketing of mechatronic sensors for displacement, angle and inclination measurement. ASM sensors are used in a wide range of industrial applications such as medical equipment, material handling and lifting equipment or renewable energies. With seven innovative product lines ASM provides solutions to automate processes, to test systems and components and to increase safety in the workplace.

ASM has its global headquarters in Moosinning, Germany near Munich which is ISO 9001:2008 certified and is where both standard products and customized solutions are manufactured. ASM products are sold worldwide through subsidiaries, sales offices and a network of representatives. www.asmsensors.com

All Topics