LW9.5-HS wheel force transducer
Six-axis wheel force transducer for forklift trucks and other heavy vehicles with small wheels, 93 kN radial and 45 kN lateral, for 10 in and larger wheels.
- 93 kN
- Fx, Fz capacity
- 45 kN
- Fy capacity
- 9.5 kN·m
- Moment capacity
- < 1 % FS
- Non-linearity
- OutputsFx Fy Fz · Mx My Mz
- Also measuredX and Z acceleration (X, Y, Z on the LW50 and LW55) · wheel speed and angle
- Signal outputanalog · CAN · Ethernet · CAN FD and EtherCAT on the CT3
- Signal transmissionslip ring or telemetry
LW9.5-HS: forklift wheel force transducer, 93 kN
The LW9.5-HS measures all the wheel forces and moments on forklift trucks and other heavy vehicles with small wheels: vertical, lateral and longitudinal forces, and camber, steer and torque moments. Its 4-arm strain gage bridges are rated 93 kN (21,000 lb) on Fx and Fz, 45 kN (10,000 lb) on Fy and 9.5 kN·m (7,000 lbf·ft) on all three moments. Non-linearity is below 1 % of full scale, hysteresis and cross-axis sensitivity after correction below 0.5 %. The rugged stainless steel transducer is weatherproof and temperature compensated, operates from −40 to 125 °C and adapts to 10 in and larger wheels.
The matching amplifier package mounts onto the transducer. It amplifies and digitizes the strain gage, encoder and accelerometer signals before the slip ring, adds X and Z accelerations up to 55 g and performs remote shunt calibration; its internal smart chip holds the calibration, zero and shunt values. A high-resolution encoder gives position and speed, at 0.17°. The CT3 box performs coordinate transformation and crosstalk correction in real time, with zero, shunt calibration check and zero angle functions, set up from an embedded web page.
Being completely weatherproof, it is designed for testing forklift trucks in all conditions, and it can also be used to monitor and control laboratory tests. For lighter forklifts and wheels down to 8 in, the LW55 is rated 55 kN.

Specifications
| Measured quantities | Fx · Fy · Fz · Mx · My · Mz |
|---|---|
| Force capacity | Fx 93 · Fy 45 · Fz 93 kN |
| Moment capacity | Mx 9 500 · My 9 500 · Mz 9 500 N·m |
| Max static load | 1 900 kg |
| Non-linearity | ≤ 1 % FS |
| Hysteresis | ≤ 0.5 % FS |
| Crosstalk | ≤ 0.5 % FS (after correction) |
| Angle resolution | 0.17° |
| Axes | 6 |
| Sensing principle | Strain gage (4-arm bridges) |
| Accelerometer range | 55 g (X and Z) |
| Output | Analog voltage · CAN · CAN FD · Ethernet · EtherCAT (CT3; EtherCAT with an add-on module) |
| Signal transmission | Slip ring |
| Material | Stainless steel |
| Operating temperature | −40 to 125 °C |
| Interface box | CT3 |
| Vehicles | Forklift trucks · Heavy vehicles with small wheels |
| Rim size | 10 in (and larger) |

Request a quote
Unusual bolt pattern, motorsport hub, agricultural wheel: we build it around your wheel.
Used with the LW9.5-HS
What you add here goes into the same quote request.
-
Measure on a steered wheel
SAC stator angle corrector
Corrects the rotation angle signal in real time for the coordinate transformation, with no over-the-wheel bracket. Internal encoder accuracy ≤ 0.25°, IP67.
Slip ring versions, with the CT3 interface box.
Resources
Datasheets and manuals
Drawings
None for LW9.5-HS.
CAD models
None for LW9.5-HS.
Guides and notes
Related applications
-
Durability Wheel loads on the road Three forces and three moments at each wheel, recorded while the vehicle is driven. -
Dynamics Vehicle dynamics The forces and moments at each wheel while the vehicle brakes, turns and changes lane. -
Dynamics Side slip angle Side slip angle read without contact by an optical sensor, on a wheel or on the vehicle body. -
Test rig Road simulators The loads measured at the wheel on the road, and the proof that the simulator reproduces them.
A question on this product?
Vehicle, wheel size, expected loads. An application engineer answers.
More details to give? Use the full contact form.


