MV-LC0119 Double-Ended Shear Beam Load Cell, 10-50 t

METRAVON MV-LC0119 is a double-ended shear beam load cell with a ball loading arrangement for truck scales, rail scales and related industrial weighing assemblies. The family is listed at 10-50 t. The ball and mating bearing parts are part of the force path, so a replacement enquiry needs more than the old sensor capacity and a photograph of its body.

Identify the ball contact and mating bearing parts

Supply drawings or clear measurements of the upper bearing, ball, lower support and scale structure. The documented self-aligning action does not establish an unlimited displacement or tilt angle. Check how the assembly controls lateral movement and keeps the contact seated as the platform moves. Do not retain a worn mating surface merely because a new sensor can be positioned underneath it: the actual contact condition affects how force enters the measuring assembly.

Check the double-ended shear beam load cell envelope by version

The reference drawings distinguish 20-40 t from 50 t. Their overall lengths are 240 and 340 mm, while assembly heights are 244 and 253 mm. Four base holes change from 18 to 21 mm diameter. These are substantial installation differences even though the measuring principle is shared. The family table also lists a 10 t lower limit, but no separate 10 t outline is established by those two drawings; request that version drawing before reserving its mounting space.

Verify the indicator against the 750-ohm input bridge

Rated sensitivity is 2.0 +/-0.05 mV/V. Bridge input resistance is 750 +/-30 ohms and output resistance is 700 +/-5 ohms, with 5-12 V DC excitation. When several supports are connected, check the indicator excitation rating and junction arrangement for their actual electrical load. Preserve the supplied wiring identification and complete the 3 m cable routing before calibration. Similar nominal sensitivity does not establish interchangeability with a different mechanical support or a different bridge circuit.

Inspect each support before accepting a total scale reading

During reference loading, observe whether the ball remains seated and whether restraints or adjacent members make unintended contact. Compare the response at the required platform positions, then check the empty indication after unloading. A plausible total at one position can conceal a poorly seated or unevenly loaded support. The specified nonlinearity, hysteresis and repeatability are each +/-0.03% FS; agree the installed scale checks separately. Vehicle-weighing use alone does not establish legal-for-trade approval for the delivered scale.

MV-LC0120 uses a concave cradle-top arrangement rather than this exposed ball contact; compare the mating support geometry before considering another bridge design.

For MV-LC0119 replacement or new-scale selection, send the capacity, bearing assembly, available height, restraint layout and existing indicator details.

Ball condition and replacement fit