Non Contact Encoders

Non contact encoders or shaftless encoders offer a compact, rugged package with no shaft, couplings, bearings or seals to wear out. Designed with the form factor of a traditional proximity sensor, our non contact encoders or non contact rotary sensors can offer position data. A wide sensing envelope and means design flexibility and allows for the sensor to work even the magnet is misaligned or offset from the sensor. Encapsulated electronics with no moving parts means Dynapar's non contact encoders excel in environments with extreme temperature, moisture, high shock and vibration , such as agriculture, farming, construction, forestry and food and beverage.

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Featured Non Contact Encoders and Non Contact Rotary Sensors

HDP30

30mm diameter non contact encoder, J1939 protocol option, IP68 rating option, 8-512 PPR incremental or absolute output options.

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HDP18

18mm diameter non contact encoder, J1939 protocol option, IP68 rating option, 64 PPR incremental or absolute output options.

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HDN58

58mm diameter non contact encoder, J1939 protocol option, IP68 rating option, 8-512 PPR incremental or absolute output options.

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Other Magnetic Encoders

Northstar RIM Tach Encoders

RIM Tach encoders for large motor feedback achieve high performance even in contaminated environments thanks to magnetic technology.

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Northstar SLIM Tach Encoders

SLIM Tach low profile encoders are ideal for sandwich mount applications between a gearbox or brake and motors with short shaft length.

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Frequently Asked Questions about Non=Contact Encoders

What is a non contact encoder?

Non contact encoders track rotation with a physical connection to the rotating shaft. Non contact encoders most commonly use magnetic hall effect sensors to sense the change in magnetic poles as a target magnet rotates along with the shaft.

When to use a non contact encoder?

Non contact encoders are often used in harsh heavy duty environments because they do not need a physical connection to the tracked rotation. This eliminates the need for bearings and sealing, which can act as a point of failure in the feedback system.

How to mount a non contact encoder?

There are two parts of the non contact encoder, a sensor and target magnet. The target magnet mounts to the shaft and the sensor faces the magnet. As the shaft and thereby target magnetic rotate, changes in magnetic poles are tracked by the sensor to generate encoder pulses.

Non Contact Encoders