HM9B Double Shear Beam Load Cell
Hermetically welded double shear beam cell for truck and railway scales, 10 t to 50 t.
Product Overview
The HM9B is the heavy beam cell used under truck scales and railway scales. Alloy steel, nickel plated and hermetically welded, it is built to sit outdoors for years under a deck that sees vehicles every day, and it is one of the two OIML R60 approved cell types we supply with weighbridge decks.
| Capacity | 10 t to 50 t |
|---|---|
| Accuracy classes | C1, C2, C3, A5M, B10M |
| Approval | OIML R60 C3 |
| Output sensitivity | 1.8 to 2.4 ±0.002 mV/V depending on class |
| Input resistance | 700 ±7 ohm to 775 ±5 ohm |
| Output resistance | 700 ±7 ohm |
| Excitation | 5 to 12 V DC recommended, 18 V DC maximum |
| Safe / ultimate overload | 150 % / 300 % of full scale |
Category: Load Cells
Key Benefits
- Hermetically welded and nickel plated for long outdoor service life
- Capacities 10 t to 50 t per cell for heavy vehicle weighing
- OIML R60 C3 approval for trade weighing installations
- Safe and anti-explosion construction for hazardous areas
Problems It Solves
- Cells corroding under a weighbridge deck after a few winters
- Replacement cells that do not match the original set
- Heavy capacity installations needing a documented accuracy class
Who It Is For
- Weighbridge manufacturers and installers
- Railway scale builders
- Operators replacing cells under an existing truck scale
Application Scenarios
- Four to eight cell weighbridge under a 12 m to 24 m deck
- Railway wagon weighing installation
- Replacing a failed cell in an installed truck scale
Technical Features
- Capacities 10, 20, 25, 30, 40SE, 40 and 50 t
- Alloy steel construction, nickel plated, hermetically welded
- Oil-proof, waterproof and resistant to corrosive gas and media
- Dual shear beam structure for truck and railway scale duty
- Safe and anti-explosion product for atrocious weather and hazardous areas
Full Specification Data
These are the manufacturer figures for this model. Nothing has been rounded, averaged or filled in where the factory did not publish it.
| Capacity | t | 10/20/25/30/40SE/40/50 | ||||
| Accuracy | C1 | C2 | C3 | A5M | B10M | |
| Approvals | OIML R60 C3 | |||||
| Maximum number of verification intervals | n max | 1000 | 2000 | 3000 | 5000 | 10000 |
| Minimum load cell verification interval | v min | Emax/3000 | Emax/5000 | Emax/7500 | Emax /15000 | Emax /10000 |
| Combined error | (%FS) | ≤±0.050 | ≤±0.030 | ≤±0.020 | ≤±0.026 | ≤±0.050 |
| Creep | (%FS/30min) | ≤±0.038 | ≤±0.024 | ≤±0.016 | ≤±0.017 | ≤±0.040 |
| Temperature effect on sensitivity | (%FS/ 10℃ ) | ≤±0.028 | ≤±0.017 | ≤±0.011 | ≤±0.013 | ≤±0.040 |
| Temperature effect on zero | (%FS/ 10℃ ) | ≤±0.047 | ≤±0.023 | ≤±0.015 | ≤±0.014 | ≤±0.020 |
| Output sensitivity | (mv/v) | 2.0±0.002 | 2.3±0.002 | 2.4±0.002 | 1.9±0.002 | 1.8±0.002 |
| Input resistance | (Ω) | 700 ±7 | 775 ±5 | 750 ±7 | ||
| Output resistance | (Ω) | 700 ±7 | ||||
| Insulation resistance | (MΩ) | ≥ 5000(50VDC) | ||||
| Zero balance | (%FS) | 1.5 | ||||
| Temperature, compensated | (℃) | -10～+40 | ||||
| Temperature,allowed | (℃) | -35～+65 | ||||
| Excitation, Recommended | (V) | 5～12(DC) | ||||
| Excitation,Max | (V) | 18(DC) | ||||
| Safe overload | (%FS) | 150 | ||||
| Ultimate overload | (%FS) | 300 | ||||
Materials And Construction
- Alloy steel, nickel plated
- Hermetically welded sealing
Customisation Options
- Accuracy class from C1 to C3
- Capacity selected per deck design
- Cable length to suit the cabin run
Use Guide
- Order all cells for one weighbridge with the same capacity and output sensitivity so the set can be corner trimmed
- Check the input resistance of the set against the indicator drive capability
- Protect cable runs from rodents and standing water in the pit
Certification
- OIML R60 C3
How It Compares
| HM14C column cell | Both cover heavy capacity. The HM14C is a column cell with anti reversal and self aligning behaviour; the HM9B is a double shear beam, often the simpler retrofit under an existing deck. |
|---|---|
| H8C single shear beam | The H8C tops out at 10 t and suits platforms and hoppers. The HM9B starts at 10 t and is built for vehicle weighing. |
Often Ordered With This Model
HM14C Column Load Cell
Hermetically welded alloy steel column cell, 10 t to 50 t, with anti reversal self aligning design.
View specifications →
ZSF And ZSFY Column Load Cell
IP68 column cell for weighbridges and heavy platforms, 10 t to 50 t, two bridge resistance options.
View specifications →
Steel Deck Truck Scale
Weighbridge deck built to site dimensions, 6 m to 24 m, with OIML R60 cells and a printable indicator.
View specifications →Truck Scale Deck Sizing And Site Preparation
A weighbridge is bought once and lived with for a decade. These are the decisions that cannot be changed afterwards.
Shear Beam S Type And Column Load Cells Compared
Four structures cover nearly every weighing build. Choosing the wrong one creates mounting problems that no amount of calibration will fix.
HM9B Double Shear Beam Load Cell Questions
How many cells does a weighbridge need?
It depends on deck length and capacity, commonly four for short decks and six or eight for longer ones. Send the deck dimensions and we will confirm.
Can I replace a single failed cell?
Yes, provided the replacement matches capacity, output sensitivity and resistance. Ordering from the same family is what makes that possible years later.
Is the HM9B suitable for outdoor use?
Yes. It is hermetically welded and nickel plated specifically for atrocious weather and outdoor installations.
Get A Quotation For The HM9B Double Shear Beam Load Cell
Tell us the capacity, accuracy class or division you need and the destination market. We will confirm availability, documentation and freight.