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LW9.5-HS wheel force transducer

LW9.5-HS wheel force transducer 93 kN

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.

LW9.5-HS wheel force transducer

Specifications

LW9.5-HS
Measured quantitiesFx · Fy · Fz · Mx · My · Mz
Force capacityFx 93 · Fy 45 · Fz 93 kN
Moment capacityMx 9 500 · My 9 500 · Mz 9 500 N·m
Max static load1 900 kg
Non-linearity≤ 1 % FS
Hysteresis≤ 0.5 % FS
Crosstalk≤ 0.5 % FS (after correction)
Angle resolution0.17°
Axes6
Sensing principleStrain gage (4-arm bridges)
Accelerometer range55 g (X and Z)
OutputAnalog voltage · CAN · CAN FD · Ethernet · EtherCAT (CT3; EtherCAT with an add-on module)
Signal transmissionSlip ring
MaterialStainless steel
Operating temperature−40 to 125 °C
Interface boxCT3
VehiclesForklift trucks · Heavy vehicles with small wheels
Rim size10 in (and larger)
CT3 transducer interface box
CT3 interface box: analog, CAN 2.0, CAN FD and Ethernet outputs, EtherCAT with an add-on module.

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Signal transmission

By wire: amplifier, slip ring and encoder on the wheel. Not on the LW-MC-3.5K and LW12.8-50-TEL.

Options
Accessories
Your request

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

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