Availability
Availability is confirmed with the quotation.
Through-Shaft Tension Sensor
LFP100A Through-Shaft Tension Sensor
LFP100A is a compact flange tension sensor with a live-shaft structure and self-aligning bearings. It is designed for flexible installation, convenient roller replacement and stable web tension measurement in continuous material production lines.
Key Features
Compact flange tension sensing for flexible roller installation and maintenance.
- Compact flange structure supports flexible installation and convenient maintenance.
- Self-aligning bearing design supports stable roller installation and easier roller replacement.
- Good linearity, high repeatability and low hysteresis for stable tension feedback.
- Wheatstone full-bridge strain gauge design with overload capacity up to 500% of rated load.
- Double-row self-aligning ball bearing structure based on NSK-series dimensions.
General Specifications
| Product Type | Compact flange tension sensor |
|---|---|
| Working Principle | Wheatstone full-bridge strain gauge |
| Supply Voltage | 5 V |
| Output Signal | 2 mV/V |
| Overload Capacity | Up to 500% of rated load |
| Bearing Structure | Double-row self-aligning ball bearing |
| Rated Load Options | 5 kg, 10 kg, 25 kg, 50 kg and 100 kg |
Rated load options are 5 kg, 10 kg, 25 kg, 50 kg and 100 kg.
| Model | Rated Load (kg) | A | B | C | D | E | F | L | M | N |
|---|---|---|---|---|---|---|---|---|---|---|
| LFP100A-15 | 5, 10, 25, 50, 100 | 69 | 42 | 36 | 15 | 29 | 2 | 74 | 24 | 13 |
| LFP100A-17 | 5, 10, 25, 50, 100 | 69 | 40 | 36 | 17 | 29 | 2 | 74 | 24 | 13 |
| LFP100A-20 | 5, 10, 25, 50, 100 | 73 | 47 | 41 | 20 | 32 | 3 | 77 | 27 | 15 |
| LFP100A-25 | 5, 10, 25, 50, 100 | 73 | 52 | 52 | 25 | 32 | 3 | 77 | 27 | 15 |
Supply voltage: 5 V. Output: 2 mV/V. Rated load applies to one sensor.
Dimensions
Mounting and dimension drawing
Replacement & Spare Part
Replacing an LFP100A on your machine?
Replacing a load cell from another manufacturer? If the rated load, shaft diameter and mounting dimensions match, one of these can replace it. Send the old sensor’s label and mounting dimensions and we will check the fit.
What to match
Match the 15, 17, 20 or 25 mm shaft bore and confirm the rated load. Check the NSK standard self-aligning bearing arrangement and the flange mounting dimensions against the existing roller installation.
What to send us
Send a photo of the sensor label, a photo showing how it is mounted, and the model of the connected controller or signal amplifier. Include the old sensor’s mounting dimensions so we can check the fit.
Measurement checks for LFP100A installations
Use these checks to review the sensor installation and measurement setup.
A sensor pair reads about half the expected load
Check that the signals from both sensors are connected and summed. Each sensor supports and measures only its share of the roller load.
Zero has moved after changing a roller or bearing
Fit the roller with no web and re-zero, then recalibrate with a known weight. The replacement roller changes the dead load acting on the sensors.
Measurement varies with speed although tension is unchanged
Check whether the wrap angle moves as roll diameter changes. Moving web paths ahead of or behind the measuring roller change the force it measures; fixed idlers are needed on both sides.
Four bore sizes for removable measuring rollers
Choose LFP100A when a compact flange-mounted tension sensor is required for flexible roller installation and easier roller replacement.
| Good Fit | Compact flange-mounted roller structures, converting machines with limited installation space, and applications requiring convenient roller maintenance. |
|---|---|
| Check First | Confirm shaft diameter, rated load, roller replacement method, mounting space, output signal and bearing arrangement before selection. |
| System Match | Use with compatible tension amplifiers, indicators, transmitters or automatic tension controllers according to the required output signal and control architecture. |
Flange-mounted measurement with access for roller changes
Compact Roller Installations
Tension feedback for compact roller structures where installation space is limited.
Printing & Converting Lines
Stable web tension measurement in printing, laminating, coating and converting processes.
Roller Replacement Applications
Useful where convenient roller removal or replacement is required during maintenance.
Unwind / Rewind Tension Feedback
Tension measurement for unwind and rewind sections where flange-mounted sensing is suitable.
Pair LFP100A with the required control hardware
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