Headquarters: SIKO GmbH Weihermattenweg 2 79256 Buchenbach Germany Phone+49 7661 394-0

Wire-actuated encoder SG31

robust design for rotary encoder mounting with 3000 mm measuring length

Very robust wire-actuated encoder in compact design for numerous applications including crane construction, stage construction, warehousing technology, etc., with a measuring length up to 3000 mm. Easy, universally changeable installation.

Profile SG31:

  • Robust design
  • Measuring lengths up to 3000 mm
  • Wire-actuated encoder for rotary encoder with 58 mm servo-flange
  • Variable mounting options
  • Lockable ventilation holes against condensation
  • Very robust measuring rope (stainless steel)
  • High tightness at the rope outlet
  • Also available as a safety version in combination with WV58MR rotary encoder
PURE.MOBILE Functional Safety PLd SSI SAE J1939 CANopen CANopen Safety

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Mechanical data
FeatureTechnical dataAdditional information
Housingzinc die-cast, plastic
Wire designø0.61 mm

steel wire (stainless), plastic coated

ø0.6 mm

steel wire (stainless)

Extension force≥3 N
Measured distance/ rope drum revolution200 mm
Weight~0.35 kg
Electrical data
Rotary encoders suitable for the SG31 are featured in RotoLine catalogue 2. Depending on the output signals the following are suitable for…
  • Analog outputs such as current or voltage: AV58M
  • Incremental outputs: IV5800
  • Absolute outputs: WV58MR, WV5800M, WV36M/SSI, WV36M/CAN

The technical specifications for these devices are given in the respective data sheet.  A number of transmitter versions of various manufacturers can also be used.
System data
FeatureTechnical dataAdditional information
Repeat accuracy ±0.15 mm

per direction of approach

Travel speed≤800 mm/s
Ambient conditions
FeatureTechnical dataAdditional information
Ambient temperature-40 … 80 °C
Wire-actuated encoder SG31
Hint for mounting

When securing the wire it must be ensured that the wire is straight and vertical in relation to the wire outlet.  Recommendation: Only select the starting position after an unwound length of approx. 5 mm. This prevents the wire hitting the end stop when it is rewound. 

SG31 Hint for mounting
symbolic depiction

Scope of delivery
  • SG31
  • Mounting instructions
Ordering table
Feature Order data Specifications Additional information
Rope fixture
wire suspension with thread
wire suspension with ring
Wire design
stainless steel rope
stainless steel rope, plastic-coated
Encoder type
without encoder
a wide range of encoders can be usedsee accessories
Position of electrical connection
direction or wire outlet or axiallydepending on installed encoder
opposite the wire outlet
without encoder
Ordering key

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Melanie Augustin

Melanie Augustin
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