MNM 4,000 lb Stainless Shear Beam 4-Cell Kit Guide: Specs, Wiring & Interchanges
- pete8781
- Jul 30
- 4 min read
Call MNM Scales at (832) 290-3120 or email mnmscales@yahoo.com for current availability, interchange matching, legal-for-trade questions, junction-box setup, or help choosing the correct stainless load cell package.
The MNM four-cell 4,000 lb stainless shear beam package is a moisture-sealed, small-envelope load-cell set for platform, floor, hopper, tank and process weighing where corrosion resistance and published replacement compatibility matter. MNM lists four 4,000 lb stainless shear beams, four 1/2-20 feet and four spacers. Searchers looking for a 4000 lb stainless load cell, NTEP shear beam, SQB SS replacement, RL35023S alternative, 65023SS replacement or Revere 9123 interchange are particularly relevant to this product because MNM publishes those interchange families directly on the listing.
Verified electrical and performance specifications
MNM publishes rated output of 3.00 ±0.015 mV/V, non-linearity ±0.02% full scale, hysteresis ±0.02% full scale, repeatability ±0.01% full scale and 30-minute creep ±0.02% full scale. Zero balance is listed at ±1.00% full scale. Temperature effect on zero and output is listed at ±0.02% full scale per 10 °C. Input resistance is 385 ±5 ohms and output resistance is 350 ±3 ohms, with insulation resistance of at least 5000 megohms. Excitation is listed at 10 V DC/AC. The compensated temperature range is -10 to 50 °C, operating range -20 to 60 °C, and safe overload 120% full scale. Wiring is red excitation positive, black excitation negative, green signal positive and white signal negative.
What stainless and moisture-sealed construction changes
Stainless construction is attractive for damp warehouses, food-production areas, process plants and outdoor-adjacent installations because it offers better corrosion resistance than ordinary alloy steel. Moisture-sealed does not mean that every junction box, connector, cable entry and indicator in the finished scale is washdown-rated. Treat the entire system as only as protected as its least-protected component. If direct high-pressure washdown, caustic cleaning or continuous outdoor exposure is expected, confirm the enclosure/IP ratings and sealing details of every component before installation.
Published replacement and interchange families
MNM lists the following interchange families on the 4,000 lb stainless product page: Artech SS30310, Celtron SQB SS, HBM B35, Revere 9123, Rice Lake RL35023S, Rice Lake RL39123, Sensortronics 65023SS and Coti Global CG-23SS. An interchange reference is a starting point, not permission to replace blindly. Before ordering, match capacity, overall dimensions, mounting-hole centers, foot/loading threads, rated output, bridge resistance, excitation, cable length, wire function, environmental sealing and any NTEP/legal-for-trade requirements. A mechanically similar beam can still be unsuitable if its sensitivity or approval status differs.
Four-cell system capacity and load sharing
Four 4,000 lb sensors total 16,000 lb of nominal cell capacity, but the finished scale rating can be lower. Platform weight, off-center loads, unequal leg loading, frame stiffness, impact, concentrated pallet feet and structural limits all influence usable capacity. In a tank or hopper, center-of-gravity shifts and rigid piping can load one support more than the others. Use system-level engineering rather than a simple four-times-capacity calculation when assigning the finished scale rating.
Installation, corner balance and calibration
Mount all four beams on flat, rigid surfaces and use the intended loading direction. Route each cable to a compatible summing junction box. Level the platform or vessel, verify each cell responds with the same polarity, and inspect for binding. Corner-test with a repeatable reference load, trim the junction box only after mechanical problems are eliminated, then perform zero and span calibration through the connected indicator. If one load cell is replaced, repeat corner balance and system calibration even when the replacement is a published interchange.
NTEP and Legal-for-Trade considerations
MNM markets the product with NTEP wording. For a commercial scale used to determine price by weight, the complete device—not simply the load cell—must meet the applicable legal-metrology requirements for the installation. Indicator approval, scale configuration, sealing, calibration, local inspection and approved replacement practice can all matter. If the system is already Legal for Trade, preserve the approved configuration and use a qualified service provider when replacement or sealing requirements apply.
Maintenance and troubleshooting
Inspect mounting hardware, cable jackets, junction-box seals and platform clearances. A sudden corner error often comes from mechanical contact or one damaged cell. Moisture-related drift can originate in a junction box even when the sensors themselves are stainless. A consistent proportional error across all corners points more toward span/calibration. Noise that changes when nearby machinery starts suggests electrical interference or grounding. After any repair, verify zero, corner agreement, span and return-to-zero before returning the scale to service.
Related guides
Use the four-cell calibration guide for corner trim and zero/span work, the replacement/interchange guide for model matching, and the washdown/hopper/platform application guide for environmental-use planning.
Frequently asked questions
How many cells are included? Four 4,000 lb stainless shear beams. Are feet and spacers included? MNM lists four feet and four spacers. What is the output? 3.00 ±0.015 mV/V. What is the output resistance? 350 ±3 ohms. What is the published safe overload? 120% full scale. Is it stainless? Yes, the listing describes stainless steel and moisture sealing. Is it NTEP? MNM uses NTEP wording on the listing; Legal-for-Trade status depends on the complete approved device and installation. Which replacements are listed? SQB SS, B35, 9123, RL35023S, RL39123, 65023SS, SS30310 and CG-23SS families are among the published interchanges.
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