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Draw wire encoders (string encoders / string potentiometers) use a reel of spring-loaded cable connected to a rotary encoder or potentiometer to provide highly accurate length measurements as the cable is extended. Quadrature and analog outputs are available on models with lengths from 2 to 10 meters.
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Draw Wire Encoders
Category Selection
Compact and accurate linear measuring using a retractable stainless-steel draw wire. Draw wire encodes offer a flexible and relatively simple way to measure linear position that can be used in environments where traditional linear encoders are difficult to install. They can accurately measure linear displacement over long distances and can be mounted in various orientations.
They are a good solution when the operational space is constricted, or the environmental conditions are severe. The body of the encoder can be mounted in a safe place, easily accessible, and adequately protected, while the measuring wire requires minimum space and can be subjected to harsher conditions. They can also replace traditional encoders in some cases. Typical applications include linear measuring, vertical lift measurement, cylinder stroke measurement, or any application where accurate, inexpensive, and easy to install measurement of a linear distance is required.
Encoder Output
(Fixed Resolution)
New!
The Lika DWI series incremental draw wire encoders offer light-duty or medium-duty models with up to a 10m draw wire and a 2m pigtail connection.
- Encoder output (quadrature) 0.025-0.050 mm/count resolution
- Miniature size (DWl-2M), robust and space saving construction
- Universal electrical output (line driver, open collector, etc.)
- Stainless steel draw wire
- Measuring lengths of 2000mm, 5000mm, and 10000mm
- IP64 and IP65 models available
Starting at
$249.00
(DWI-2M-H0500-RL2)
Analog Output
(Fixed Resolution)
New!
The Lika DWP series analog draw wire encoders are light-duty models with a 2m draw wire and a 2m pigtail connection.
- Analog voltage or current output:
0-10 V or 4-20 mA - Smooth, stepless analog incrementing (potentiometer-based)
- Stainless steel draw wire
- Measuring lengths of 2000mm
- IP64 housing
Starting at
$299.00
(DWP-2M-4A-RL2)
Analog Output
(Programmable Scaling)
New!
The Lika DWA series draw wire programmable encoders provide the utmost flexibility and accuracy with user-configured output scaling across the specific travel of each application. These medium-duty encoders feature up to a 10m draw wire and M12 connections.
- Programmable analog output:
0-10 V or 4-20 mA - Scale the output to the travel of a specific application
- Utilize maximum resolution (with any travel distance)
- Easy to use Teach Mode
- Via pushbuttons on the encoder
- Or use digital inputs
- Change scaling programmatically (for recipe or other dynamic machine changes)
- Status LEDs
- Alarm notification extended beyond the teach limits
- Stainless steel draw wire
- Measuring lengths of 5000mm and 10000mm
- Medium duty IP65 housing with M12 cable connection
Starting at
$550.00
(DWA-5M-4A-M12)
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