JW-KTR(S05) KTR self return linear displacement sensor is a compact spring loaded position transducer designed for short stroke measurement in limited installation spaces. With conductive plastic potentiometer technology, spring self recovery structure, IP65 protection, high repeatability, and anodized aluminum housing, it provides stable analog position feedback for testing equipment, automatic doors, packaging machinery, printing machines, valves, robots, and compact automation systems.
2. Product Overview
JW-KTR(S05)KTR self return linear displacement sensor is designed for compact linear position measurement where the moving object cannot easily be connected to a traditional pull rod. Its spring loaded self recovery structure allows the shaft to return automatically after contact measurement, making it suitable for thickness detection, flatness inspection, valve travel monitoring, automatic door position feedback, and short stroke automation applications.
The sensor uses a conductive plastic potentiometer element to provide stable analog position output. Compared with ordinary contact displacement devices, the KTR series offers high repeatability, smooth output, and reliable mechanical response for frequent industrial operation. Its compact housing, commonly around 18mm by 18mm, makes it easy to install in narrow machine spaces.
The anodized aluminum housing provides resistance to moisture, oil, and dust, while the IP65 protection grade supports use in many industrial environments. The stainless steel actuating shaft with double sided bearing support helps improve movement stability and measurement consistency. Optional output modules can be selected according to controller requirements, including resistance output, 4 to 20mA, 0 to 5V, 0 to 10V, or RS485 signal output.
KTR self return linear sensors are widely used in packaging machines, printing machines, automatic doors, robots, valve position detection, medical equipment, machine construction, automotive R and D testing, flatness inspection, and panel thickness measurement.
Item
Specification
Measuring Stroke
5 to 100 mm
Linearity
±0.05%
Repeatability
< 0.01 mm
Resolution
Infinite
Resistance
2 kΩ or 5 kΩ
Resistance Tolerance
±20%
Load Resistance
Minimum 100 kΩ
Allowable Supply Voltage
28 V
Electrical Connection
Direct cable standard
Displacement Speed
< 3 m/s
Mechanical Life
> 50 × 10⁶ cycles
Housing Size
18 × 18 mm
Housing Material
Anodized aluminum
Rod Material
Stainless steel
Rod Diameter
φ5 mm
Mechanical Mounting
Adjustable bracket
Protection Grade
IP65
Working Temperature
-40°C to +80°C
3. Application Scenarios：
Flatness and Thickness Inspection: The spring return shaft makes the KTR sensor suitable for checking panel flatness, material thickness, surface height difference, and short contact displacement in testing equipment.
Packaging and Printing Machinery: The compact housing and short stroke feedback make it suitable for packaging machines, printing machines, tension adjustment systems, and speed adjustment mechanisms.
Automatic Doors and Valves: KTR sensors can monitor door travel, valve position, mechanical stroke, and return movement where automatic self recovery is required.
Robots and Compact Automation: The sensor can be installed in robotic fixtures, compact mechanisms, inspection stations, and small automation systems where space is limited.
Medical Equipment and Test Rigs: With high repeatability and stable analog output, the KTR series can support medical devices, laboratory fixtures, machine construction, and automotive R and D testing.
FAQ
Q
1. What is the KTR self return linear displacement sensor used for?
A
The KTR sensor is used for short stroke displacement measurement, flatness inspection, thickness detection, valve position monitoring, automatic doors, and compact automation systems.
Q
2. What measuring stroke is available for the KTR sensor?
A
The KTR series commonly supports 5mm to 100mm measuring strokes, with some configurations available up to 300mm.
Q
3. How does the self return structure work?
A
The sensor uses a built in return spring, so the actuating shaft can automatically return after being pressed or contacted by the measured object.
Q
4. Can JW-IoT supply KTR sensors for packaging and printing machines?
A
Yes. JW-IoT can supply KTR self return linear displacement sensors for packaging machines, printing machines, automatic doors, valves, robots, and compact industrial equipment.
Q
5. Is the KTR sensor suitable for small installation spaces?
A
Yes. The KTR sensor has a miniature housing and is designed for limited space applications where a standard long body displacement sensor is difficult to install.
Q
6. What output signals are available?
A
The standard output is resistance output. Optional signal modules can support 4 to 20mA, 0 to 5V, 0 to 10V, or RS485 depending on project requirements.
Q
7. Can JW-IoT help choose the correct stroke and output type?
A
Yes. JW-IoT can help match the proper KTR stroke length, signal output, wiring method, and installation structure according to the customer’s machine design.
Q
8. What protection grade does the KTR sensor provide?
A
The KTR series commonly provides IP65 protection, making it suitable for many dust resistant and water resistant industrial applications.
Q
9. Why choose JW-IoT for compact displacement sensing solutions?
A
JW-IoT provides compact linear displacement sensors, selection support, and integration guidance for customers who need reliable short stroke position feedback in machine control systems.
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