BKS/XKS/PKS Wire Draw Encoders

In these compact wire draw encoders, the encoder is integrated into the wire draw mechanism to minimize the size of the unit.

The number of drum rotations, which is proportional to the length, is counted by an encoder and converted to a measuring signal. This provides high-resolution position or distance information for linear measurement paths, even under difficult mounting conditions.

Precise linear guidance, as required for other length measurement systems, is not necessary.

The choice between absolute, motor feedback and/or incremental wire draw encoders manufactured by SICK STEGMANN enables made-to-measure solutions for many application profiles.

-SSI interface for absolute wire draw encoders
-TTL interface for incremental wire draw encoders

are common interfaces in automation technology and meet its exacting requirements.

The measuring lengths of 2 m and 5 m cover most of the possible applications, for example in:

Presses, punching and injection machines, storage technology, wood and sheet metal processing machines, construction machinery, medical technology and many other industries.

BTF/PRF and PT Wire-Draw Encoders

Wire draw mechanisms are linear-torotational, industrial motion conversion modules, coupled with encoder feedback, to provide cost-effective linear position measurement solutions that precisely fit your requirements. These systems are housed in rugged industrial enclosures, and contain astainless steel or thermoplastic composite cable wound on a precise, constant-diameter spool. The cable is attached to the apparatus whose position is being measured, and is extended and retracted as the apparatus moves. A spring on the spool maintains cable tension. Position feedback is provided by a standard incremental or absolute rotary shaft encoder. These position transducers allow very flexible measuring paths, since the cable can be guided around obstacles using pulleys, etc. The heavy-duty enclosure of the encoder andspool housing provide excellent protection against contaminants, shock and other abuses.

KH 53 (Pomux®) and KH 53 Advanced
Long Distance Linear Encoders

This style of encoder is unique to
SICK STEGMANN, INC. and allows absolute measurement of up to 1.67 kilometers! The The KH 53 consists of two basic components: Omega Profile sections and the sensor head. Each Omega Profile section contains a number of powerful permanent magnets. The separation between each magnet is unique and never repeated. These unique separations build up a code over the complete measurement path. In a working system, several Omega Profiles sections are placed end to end along the complete measurement path. The total length of the system determines the number of profiles required. Each profile section is labeled with an identification number indicating the order in which the sections should be mounted. The sensor head moves over the Omega Profile sections without contact, and produces absolute positional data. The KH 53 allows a generous vertical tolerance of ±10 mm around a 25 mm nominal value, and a horizontal tolerance of ±10 mm around the centerline. The output is available in SSI, Interbus, and Profibus. Other networks can be realized using commercially available I/O modules. In addition, this modular system offers several benefits to the user. If the measurement length of the system needs to increase in the future, the user simply needs to mount the extra profiles required. If the Omega Profile become damaged, only the damaged sections need to be replaced.
The advanced KH 53 comes in measuring lengths of 54 m and 548 m, positional/mounting tolerance to +/- 20 mm; an operating temperature of -30...+70C and requires less installation time than the standard KH 53.