MNM Scales 4 x 2,500 lb Alloy-Steel NTEP Shear Beam Kit Guide
- pete8781
- Jul 29
- 2 min read
For product details or help planning a floor, platform, hopper or tank scale build, call MNM Scales at (832) 290-3120 or email mnmscales@yahoo.com.
The MNM Scales four 2,500 lb alloy-steel shear beam load cell kit is aimed at builders and repair technicians who need four matched-capacity sensors, four 1/2-20 feet and four spacers for a platform or process-weighing structure. MNM markets the kit as NTEP and lists each shear beam at 2,500 lb capacity.
Published Load Cell Specifications
MNM lists a rated output of 3.0 ±0.25 mV/V, nonlinearity ±0.03% full scale, hysteresis ±0.03% full scale, non-repeatability ±0.02% full scale and 30-minute creep ±0.02% full scale. Input impedance is listed at 385 ±20 ohms and output impedance at 350 ±3 ohms. Recommended excitation is 10–15 V AC/DC with 15 V DC listed as the maximum. The published cable color code is red +excitation, black -excitation, green +signal and white -signal.
Mechanical Package: Feet, Spacers and Low-Profile Shear Beams
The kit includes four threaded feet and four spacers so each sensor can be mounted under a four-point structure. Shear beams work well under floor and platform scales because they are compact and can support a deck while measuring vertical load. The structure must still control side forces, overloads and deck movement; the load cell is a sensor, not the entire scale design.
Do Four 2,500 lb Cells Automatically Make a 10,000 lb Scale?
Four sensors have 10,000 lb of combined nameplate cell capacity, but that does not automatically make every finished deck a 10,000 lb scale. Deck dead weight, off-center loading, impact, concentrated point loads, safety margin, frame stiffness and how load transfers to each corner all affect the usable system rating. A finished scale should be engineered and calibrated for the intended maximum load, not simply labeled by adding the four cell capacities together.
Wiring a Four-Cell Platform
In a typical analog four-cell system, each load cell runs to a summing/junction box. The box combines the four bridge outputs and provides trim adjustment so a test load reads consistently at each corner. From the junction box, one cable goes to the indicator. Keep cable runs protected and avoid shortening one cell cable while leaving others long unless the load-cell manufacturer and scale design allow it.
Calibration, Corner Trim and Verification
A four-cell platform should be mechanically level before calibration. Corner correction comes before final span calibration: place the same test load near each load point, adjust the junction-box trim until the corners agree, then perform zero and span at the indicator. Afterward, verify center and corner readings at multiple loads. The dedicated calibration guide below walks through that sequence.
Applications
Likely applications include custom floor and pallet scales, warehouse platforms, material-handling scales, hoppers, ingredient bins, small tanks, batching vessels and OEM weighing frames. The product photos may be representative, so use the title/specification capacity and confirm dimensions before replacing an existing load cell.
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