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8-2b22t Load Cells (Tab 1) TAB-1

8-2b22t Compression Rocker Column Load Cell 22 Ton

Pit-mounted and pitless truck scales, modular weighbridge decks, cement and aggregate bulk batchers.

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HARDWARE OPTICAL VIEW 22 Ton (22,000 kg)
8-2b22t Compression Rocker Column Load Cell 22 Ton 22 Ton (22,000 kg) IP68 Hermetic Laser Seal
Metrological Verification: OIML R60 C3 / NTEP Class III
Nominal Capacity
22 Ton (22,000 kg) Standard calibrated rating
Ingress Protection
IP68 Hermetic Laser Seal Hermetic environmental barrier
Safe Overload Limit
150% FS Zero plastic deformation
Ultimate Breakload
300% FS Structural rupture barrier
Accuracy Class
OIML R60 C3 / NTEP Class III OIML R60 / R76 Certified
Operating Temp
-35°C to +75°C Desert thermal compensated
Chassis Material
High-Tensile Quenched Alloy Steel, Anti-Corrosion Plating Heavy industrial grade
Combined Error
≤ ±0.02% FS Non-linearity + hysteresis

Precision Metrology & Electrical Specifications

SPEC VERSION: 2026.1 / CALIBRATION VERIFIED
Scroll table horizontally to view complete data
Structural Architecture Rocker Column Compression
Calibrated Rated Capacity 22 Ton (22,000 kg)
Rated Output / Sensitivity 2.0 ± 0.002 mV/V
Combined Total Error ≤ ±0.02% FS
Bridge Input / Output Impedance Input: 750 ± 15 Ω | Output: 702 ± 5 Ω
Insulation Resistance ≥ 5000 MΩ (Tested at 50V DC)
Excitation Supply Voltage 10V - 12V DC
Compensated Temperature Range -35°C to +75°C
Safe / Ultimate Overload Margins Safe: 150% FS | Ultimate: 300% FS
Integral Cable Specification 14m 4-Core Shielded Heavy Industrial Cable

8-2b22t: Rocker Column Compression Metallurgy, Sealing & Mounting Architecture

Heavy Weighbridge Compression Architecture
8-2b22t Metallurgy & Structural Analysis

High-Tensile Quenched Alloy Steel, Anti-Corrosion Plating. Specifically engineered for Rocker Column Compression service in Pit-mounted and pitless truck scales, modular weighbridge decks, cement and aggregate bulk batchers.

  • High-tensile alloy or 17-4 PH stainless steel hardened to eliminate zero shift under repetitive 45-ton tandem truck axle impacts.
  • Rated for capacity of 22 Ton (22,000 kg) with safe overload margin of 150% FS and ultimate breakload of 300% FS.
  • High elastic recovery prevents zero balance shift under dynamic braking and acceleration forces.
Hermetic Laser Sealing (IP68 Hermetic Laser Seal)

Full true hermetic enclosure with laser-welded stainless steel bellows or diaphragms (IP68 Hermetic Laser Seal).

  • Tested for continuous submersion at 1.5m water depth for 100+ hours without moisture ingress.
  • Compensated temperature range (-35°C to +75°C) prevents thermal span drift in Iraqi desert climates.
  • Equipped with 14m 4-Core Shielded Heavy Industrial Cable with internal water-blocking filler to prevent capillary fluid migration.

Mounting Kinematics & Side-Load Rejection

Self-aligning spherical load buttons; excellent recovery under longitudinal vehicle movement.

Self-Centering Action Spherical convex rocker geometry automatically restores bridge alignment after heavy vehicle dynamic braking.
Thermal Expansion Absorbs up to ±15mm longitudinal steel deck thermal movement from -20°C winter to +75°C summer.
Anti-Lift-Off Protection Integrated stay rods and upper retaining collars prevent platform tipping during high crosswinds and uneven axle entry.

8-2b22t: Wiring Pinouts, Conductor Coding & Summing Interfacing

Hardware Interface Map
Standard 4-Wire / 6-Wire Color Code
RED + Excitation Supply (+Exc): 10V - 12V DC
BLACK - Excitation Return (-Exc)
GREEN + Signal Output (+Sig): 2.0 ± 0.002 mV/V
WHITE - Signal Return (-Sig)
BLUE / BRN + / - Sense Leads (6-Wire Remote Sensing)
YELLOW Braided Shield / Earth Ground: 14m 4-Core Shielded Heavy Industrial Cable
System Automation & Summing Interfaces
  • Bridge Impedance: Input 750 ± 15 Ω | Output 702 ± 5 Ω ensures balanced summation in multi-cell weighbridges.
  • Sensitivity Calibration: 2.0 ± 0.002 mV/V with combined error ≤ ±0.02% FS guarantees trade precision.
  • Digital / Analog Summing: Direct connection to stainless junction boxes with multi-turn corner trimmers.
  • Overload Barrier: Safe overload 150% FS and ultimate overload 300% FS.
10,000A Transient Surge Suppression Advisory: To protect 8-2b22t from lightning strikes and Iraqi power grid surges, all multi-conductor signal cables must terminate in a heavy stainless junction box equipped with multi-stage gas discharge tubes and low-capacitance TVS diodes bonded to an earth earthing electrode (< 1.0 Ohm resistance).

8-2b22t: Regional Field Performance Across Iraq & COSQC Stamping

COSQC Legal Verification
Southern Iraq (Basra & Khor Al-Zubair)

High groundwater with extreme sulfate concentrations (>3,500 mg/L) causes rapid pin corrosion in generic cells. 8-2b22t features sealed construction tested for high saline and petrochemical marine environments.

Central Iraq (Baghdad & Western Desert)

Summer ambient temperatures reach +55°C, with direct metal surface exposure exceeding +75°C. Internal temperature compensation (-35°C to +75°C) preserves legal calibration.

Kurdistan Region (Erbil, Sulaymaniyah, Bazian)

Cement plant complexes and aggregate quarries generate intense dust and 45-ton axle shocks. Heavy metallurgy withstands abrasive silica dust without mechanical binding.

Iraqi COSQC Legal Metrology Compliance & Stamping

This component satisfies all regulatory requirements mandated by the Iraqi Central Organization for Standardization and Quality Control (COSQC) for trade-approved weighing instruments (OIML R60 C3 / NTEP Class III).

OIML R60 / R76 Test Reports Verified Wire Lead-Seal Provision for Legal Stamping Bwer Annual Stamping & Calibration Service Available

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We provide dimensional 2D AutoCAD (.DWG), 3D STEP models, and full PDF wiring schematics for engineers and electrical panel integrators.

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