Draw Wire Displacement Sensor 6000-16000mm for Long-Range Position Measurement

Product Overview

The JW-WPS-L(S13) Draw Wire Displacement Sensor is designed for long-range linear displacement and position measurement from 6000mm to 16000mm.

It converts the linear movement of a target into a measurable electrical signal through a retractable stainless-steel wire rope and internal sensing mechanism.

Compared with rod-type linear displacement sensors, a draw wire sensor can measure much longer travel while keeping the sensor body relatively compact. This makes it suitable for equipment and structures where the measuring point may move several meters.

Typical applications include:

• Large gate opening measurement
• Hydraulic equipment
• Lifting and positioning systems
• Large industrial machinery
• Warehouse positioning equipment
• Construction machinery
• Long-travel automation systems
• Large moving platforms
• Structural movement monitoring

Depending on the selected configuration, the JW-WPS-L(S13) series can support current, voltage, resistance, pulse and digital output options. The product also uses an industrial aluminum-alloy housing and IP65 protection for demanding installations.

What Is a Draw Wire Displacement Sensor?

A draw wire displacement sensor—also called a cable displacement sensor, pull wire sensor, string potentiometer or wire position sensor—measures linear movement by extending and retracting a flexible measuring cable.

The sensor body remains fixed while the end of the wire rope is connected to the moving object.

As the target moves:

Target Movement

↓

Wire Rope Extension

↓

Internal Spool Rotation

↓

Position Conversion

↓

Electrical Output Signal

This makes draw wire technology particularly useful where direct installation of a long rod-type sensor would require too much installation space.

Why Use a 6000-16000mm Draw Wire Sensor?

A 6–16 meter measuring range is designed for applications where conventional short-stroke linear sensors are no longer practical.

Typical conditions include:

• Moving distance exceeds several meters
• Sensor installation space is limited
• The target moves in a relatively straight path
• Continuous position feedback is required
• Large machinery or civil equipment must be monitored

For movements below approximately 6000mm, a smaller draw wire sensor may provide a more compact solution.

Related product:

Draw Wire Displacement Sensor 2500-6000mm

For movement exceeding 16000mm, consider:

Extra-Long Draw Wire Displacement Sensor 16000-30000mm

How Does the JW-WPS-L(S13) Work?

The measurement system consists of:

• Sensor housing
• Retractable measuring wire
• Spring-loaded spool
• Internal displacement sensing element
• Electrical output interface

When the target moves away from the sensor, the wire is pulled from the spool.

The spool rotation corresponds to the extension distance. The internal sensing mechanism then converts this rotation into an electrical signal representing linear displacement.

When the target moves back toward the sensor, the spring mechanism retracts the wire while maintaining suitable tension.

Because the sensing body remains stationary, very long movement can be measured without requiring a sensor body equal to the full measuring distance.

Technical Specifications

Applications

Large Gate Opening Monitoring

One of the most suitable applications for a 6–16m draw wire displacement sensor is large gate position measurement.

Possible applications include:

• Sluice gates
• Reservoir gates
• Flood-control gates
• Large industrial doors
• Hydraulic gates

The sensor body can be installed on a fixed structure while the measuring cable is attached to the moving gate.

As the gate opens or closes, the wire extension changes continuously, allowing the control system to determine the opening position.

For water infrastructure projects, the displacement sensor can work together with other monitoring equipment such as:

• Water level sensors
• Gate controllers
• RTUs
• Alarm systems

Hydraulic and Heavy Machinery

Large hydraulic machinery may have strokes far beyond the range of compact linear displacement sensors.

A draw wire sensor can be installed beside the hydraulic mechanism and connected to the moving component.

Typical measurements include:

• Hydraulic cylinder extension
• Press position
• Boom movement
• Mechanical platform movement
• Equipment stroke

The flexible wire design allows the sensor to monitor long movement without installing a multi-meter rigid sensor alongside the cylinder.

Lifting and Hoisting Equipment

Long-range displacement monitoring is useful for:

• Lifting platforms
• Hoists
• Crane mechanisms
• Elevators
• Material handling systems

The sensor can provide continuous position information for movement control, travel monitoring or limit management.

For safety-related equipment, the displacement sensor should be used as part of an engineered control system rather than as the sole safety device.

Warehouse and Large Automation Equipment

Automated storage and retrieval systems can require several meters of horizontal or vertical movement.

Draw wire sensors can measure:

• Shuttle position
• Lifting platform height
• Storage carriage movement
• Long-axis travel
• Conveyor positioning

Output signals can then be processed by compatible PLC or control equipment.

Structural and Engineering Movement Monitoring

Long-range cable displacement measurement can also support engineering monitoring where relatively large movement may occur.

Possible applications include:

• Large structural joints
• Dam components
• Retaining structures
• Mining infrastructure
• Large mechanical structures

JW-IoT also includes the 6000–16000mm draw wire sensor within its structural health monitoring product portfolio.

Related solution:

Structural Health Monitoring System

For structural monitoring, sensor selection should consider expected displacement, movement direction, mounting stability and environmental conditions.

6000-16000mm vs 2500-6000mm Draw Wire Sensor

Choose the 2500-6000mm model when the maximum movement remains below 6m.

Choose the 6000-16000mm model when the project requires several meters of additional measuring travel.

6000-16000mm vs 16000-30000mm Sensor

Avoid automatically selecting the largest measuring range.

A measuring range reasonably matched to the expected movement generally provides a more appropriate mechanical configuration for the project.

Related product:https://www.jw-iot.com/extra-long-draw-wire-displacement-sensor-16000-to-30000mm/

Draw Wire Sensor vs Rod-Type Linear Displacement Sensor

For shorter direct measurement applications, JW-IoT also provides:

Linear Displacement Sensor 75-1250mm

Installation Guidelines

Installation quality has a major influence on wire life and measurement reliability.

1. Keep the Wire as Straight as Possible

Install the sensor so the wire travels directly between:

• Sensor outlet
• Moving measurement point

Avoid unnecessary angular deviation.

JW-IoT’s adjacent draw-wire product guidance recommends keeping the wire path as straight as possible and minimizing angular deviation; where the movement is not linear, a suitable guide or pulley should be considered.

2. Do Not Allow Sudden Retraction

Do not pull the cable out and release it suddenly.

Rapid uncontrolled retraction may damage:

• Wire rope
• Internal spool
• Sensor housing

Always allow controlled movement.

3. Protect the Stainless-Steel Wire

Avoid exposure to:

• Welding sparks
• Sharp edges
• Cutting tools
• Heavy debris
• Excessive contamination
• Mechanical impact

For outdoor installation, inspect the wire and outlet periodically.

4. Use a Guide for Non-Linear Movement

If the target does not travel directly away from the sensor, use an engineered guide or pulley system.

The cable should not repeatedly rub against surrounding structures.

5. Verify Full Travel Before Commissioning

Before operation:

1. Move the equipment slowly through its complete expected stroke.
2. Confirm that the cable remains aligned.
3. Confirm that the wire does not reach its maximum extension.
4. Check the output signal throughout the movement.
5. Verify the mechanical mounting points.

Typical Signal Integration

Depending on the selected output configuration, a typical system can follow:

Draw Wire Displacement Sensor

↓

Analog / Resistance / Pulse / Digital Output

↓

PLC / Controller / Data Acquisition Unit

↓

Position Display or Control Logic

↓

Machine Position Control

For remote monitoring projects, communication should normally be handled by the connected controller, RTU or data acquisition equipment rather than assuming that every sensor configuration communicates directly with a cloud platform.

How to Select the Correct Draw Wire Displacement Sensor

Before requesting a quotation, provide the following information.

1. Maximum Travel

Determine the maximum expected displacement.

Do not select a range that is shorter than the actual maximum movement.

2. Required Output

Confirm whether the control system requires:

• Current
• Voltage
• Resistance
• Pulse
• Digital interface

3. Required Accuracy

Specify the required:

• Linearity
• Repeatability
• Resolution

This is especially important for positioning and closed-loop control applications.

4. Movement Direction

Confirm whether movement is:

• Horizontal
• Vertical
• Inclined
• Non-linear

This affects installation design.

5. Operating Environment

Provide information about:

• Temperature
• Humidity
• Dust
• Water exposure
• Vibration
• Corrosion
• Outdoor installation

6. Motion Speed

High-speed or rapidly accelerating movement should be evaluated against the mechanical capability of the wire and spool system.

Request a 6000-16000mm Draw Wire Displacement Sensor Quote

JW-IoT provides long-stroke displacement measurement products for:

• Industrial automation companies
• Hydraulic equipment manufacturers
• Gate control system integrators
• Machinery manufacturers
• Structural monitoring contractors
• Engineering projects

For faster product selection, send us:

• Required measuring range
• Output signal
• Accuracy requirement
• Installation direction
• Maximum movement speed
• Working environment
• Quantity

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https://www.jw-iot.com/contact-us