Kübler by Turck Draw Wire Encoders Measure Distances from .25 to 40 Meters


Minneapolis, Minn. - Kübler by TURCK has expanded its draw wire series with versions that measure 0.25 meters to 40 meters. This system is designed to work with sensors and encoders with analog outputs, such as 0 to 10V, 4 to 20mA and potentiometers, as well as incremental (push-pull and RS422), absolute (SSI and BISS) and fi eldbus (CANopen, PROFIBUS®, DeviceNet(TM) and EtherCat) interfaces.

At the core of a draw wire device is a drum mounted on bearings, onto which a wire is wound. The winding takes place via using a constant force spring that results in high traverse speed of up to 10 m/s, and acceleration of up to 140 m/s2. A long service life of approximately 2 million complete cycles can be achieved with draw wire encoders.

The robust draw wire system is constructed with a titanium-anodized aluminum housing and a stainless-steel wire with a diameter of 0.5 mm. The wire experiences no wear due to a diamond-polished ceramic guide. A wide temperature range of -20 to 85°C (options available with -40 to 90°C range), as well as the optional IP67 protection rating, permit use in diffi cult environmental conditions. The systems have a linearity of up to 0.05 percent and can be supplied (on request) with the relevant calibration certifi cate.

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