Encoders

Encoders are used for any application where rotation speed, sense, position, angle and length are monitored. The Turck range comprises contactless and conventional encoders in various designs, graduated in a range of sizes from 24 up to 102 mm diameter, as versions for incremental or absolute position detection, as hollow or solid shaft variants. Vibration resistance and robustness without compromise are prerequisites for reliable operation of the devices, even in demanding environments.

Innovative technology: Contactless encoders QR24 and QR20 are based on the inductive measuring principle. Users benefit from the wear-free design and interference immunity.

RI – Completely Contactless, Inductive Encoders

Contactless encoders from Turck are based on an inductive measuring system and impress with a wear-free design and interference immunity. The measuring principle allows a design without seals with fully sealed sensor housing that is mechanically separated from the shaft and thus the actual positioning element.

The measuring process guarantees maximum accuracy despite interference such as water, electromagnetic effects or vibration on the shaft.

The sealed housing is highly resilient, meets protection class IP67/IP69K (including condensation) and is resistant to many chemicals.

A wide range of output signals for the desired connection, for instance, via an analog current, voltage, incremental or SSI output.

Flexible: The inductive encoder can be adapted with different insert sleeves for a perfect fit on all standard shafts.

RE – Conventional Encoders for Different Applications

Turck offers the right encoder for various applications: Incremental encoders (REI) deliver electrical impulses, whose number is a measure of the angular position. Singleturn absolute encoders (RES) capture every angle within a 360° turn, while multiturn absolute encoders (REM) additionally detect the number of revolutions.

Even under adverse circumstances, a high protection class up to IP67 is guaranteed. This is ensured by the mechanically protected shaft seal.

The robust bearing construction ensures a high degree of stability when subjected to vibration and other mechanical shaft loads.

An innovative backend provides precise measurement signals with high linearity and low signal noise.

Interference immunity: The encoders are immune to magnetic fields of all kinds and also offer excellent EMC performance.

Designed for Agriculture

Miniature encoder Ri360-QR20 – contactless, wear-free and permanently sealed.

Inductive Encoders with IP69K

QR24 encoders are fully potted and can withstand adverse conditions.

Best Practice

Industrial Potato Processing with a QR24 Encoder

Potato processor Schaap Holland B.V. supplies 45,000 tons of potatoes to trade and gastronomy each year. Processes such as sorting, washing and peeling must therefore run smoothly. In order to avoid the mechanical wear of conventional encoders, the Dutch company now relies on Turck's QR24 encoder. The encoder reliably detects the speed of a central motor on a buffer conveyor.

Contactless Encoder Detects the Projection Angle of a Crop Sprayer

The spraying arms of crop sprayers must always be at the correct angle when applying crop protection agents. Turck's QR20 encoder enables their dynamic and fault-free alignment. The contactless encoder permanently records the projection angle of the folded-out spraying arms – even during shocks and high vibration stress.

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