Wire-actuated Encoder SIKO SG121

Wire-actuated Encoder SIKO SG121

SIKO (Germany) - Press Release: Robust design with 12 m measurement length.

Robust, compact and flexible – sounds like an impossible combination? Not for us! The new SG121 wire-actuated encoder from SIKO proves it. There are good reasons why this sensor manufacturer from Buchenbach near Freiburg has made a name for itself as a specialist in the area of wire-actuated sensors. Its extensive experience, acquired over 30 years of development and production of these compact position sensors, is particularly evident in the multitude of small details. The fact that the new SG121 wire-actuated encoder is suitable for measuring lengths up to 12 m also reflects this. It impresses not only because of its compact size, which means it does not require much space, but also with its resilience and flexibility.
Compact and robust:

Long measuring lengths and the most compact housing possible: this requirement is not only common in intralogistics and with manufacturers of mobile machines. In stationary mechanical engineering, this is also an important factor in the selection of the sensor in new machine concepts. The new SG121 wire-actuated encoder is unique on the market with its installation depth of just 70 mm x 85 mm x 105 mm. However, the space-saving wire-actuated encoder makes no compromises when it comes to sturdiness! The robust aluminum housing, coupled with impact-resistant plastic, survives even the harshest of operating conditions. Temperatures between -40 and +80° C, high shock and vibration loads, dirt, dust and water make no impression on the wire-actuated encoder. A version with integrated water drain holes is also available for outdoor applications in low temperature ranges.  This prevents water that has penetrated the sensor from freezing at below-zero temperatures and consequently increases the service life
Flexible down to the last detail – a range of interfaces and Wire-Flex technology:

The flexible 58 mm flange system can be used with almost any interface. The customer can select the interface appropriate for the application, whether it’s an incremental interface such as HTL or TTL, or an absolute interface such as analog, SSI, CANopen, SEA J1939, CANopen Safety, Fieldbus or Ethernet.

But that’s not where the flexibility of the wire-actuated sensor ends. The wire outlet also sets quality standards. The unique Wire-Flex technology ensures that wear on the wire is kept to a minimum, even if it is pulled out at an angle. The conical shape of the wire outlet and the various types of wire ensure that any deposits on the wire can be removed easily. As a result, the wire-actuated encoder automatically compensates for mechanical tolerances in the machine or vehicle and protects the function and service life of the measurement system – even in harsh ambient conditions.

Also suitable for reliable position detection:

The SIKO SG121 wire-actuated encoder provides increased safety in combination with the redundant WV58MR safety rotary encoder and can be used in the overall system in applications up to performance level d (PLd). This is made possible by the mechanical design and software specially designed for this purpose. Not only the electronics but also the mechanics are monitored and hazardous conditions are avoided. The new SG121 is therefore predestined for use in mobile machines.

Universally applicable wire-actuated encoder with measuring lengths of max. 12000 mm, robust construction as well as precise and safe wire guidance, prepared for attaching the most diverse types of rotary encoders with a 58 mm standard flange.

Profile SG121:

  • Robust design
  • Easy mounting
  • Measurement lengths up to max. 12000 mm
  • Incremental or absolute encoder
  • Also available as a safety version in combination with WV58MR rotary encoder
  • High flexibility thanks to free choice of rotary encoders with 58 mm standard flange
  • Various wire types
  • With PURE.MOBILE technology


For more information about this article from SIKO click here.

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