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High precision ESMLS12 large capacity column type weighing load cell sensor

The ESMLS12 large capacity column load cell is a core component in the field of industrial weighing, specifically designed to measure heavy objects ranging from tens of tons to hundreds of tons, and even over a thousand tons. With features such as a robust structure, strong resistance to off-center loads, and easy installation, it is widely used in scenarios such as vehicle scales, rail scales, large material tanks, bridge monitoring, and heavy-duty pressure testing.

Main Application Scenarios
1. Transportation Weighing: electronic truck scales (weighbridges), dynamic highway overload detection systems, dynamic rail scales.
2. Industrial Process Control: large hopper scales, batching tanks, reactor weighing, cement silo weighing.
3. Heavy Machinery Testing: hydraulic testing machines, tensile testing machines, bridge preloading tests, building settlement monitoring.
4. Special Environments: port and dock crane scales, metallurgical high-temperature environments (requires heat insulation plate), chemical explosion-proof areas (requires explosion-proof certification).

product details

Working Principle

The ESMLS12 column-type weighing sensor operates based on the piezoresistive effect. When the columnar elastic body (mostly alloy steel or stainless steel) is subjected to tension or compression, it undergoes slight deformation, causing the resistance of the strain gauges attached to its surface to change accordingly. The change in resistance is converted into an electrical signal proportional to the load through a Wheatstone bridge, and after conditioning, the signal is output for acquisition.

Product Features

1. Super high load capacity: The measurement range is extremely wide, with common specifications starting from 10t, 20t, 50t; mainstream capacities can reach 100t, 200t, 300t, and the maximum can go up to 500t or even higher.
2. Strong and durable structure: Usually made of forged alloy steel or stainless steel as a whole, and some high-end models use fully sealed, weld-free cylindrical structures, with a protection level of up to IP68, capable of long-term operation in high-dust and highly corrosive environments.
3. Excellent anti-eccentric load and shock resistance: The columnar structure design provides a natural self-resetting function, effectively resisting lateral forces and high dynamic load impacts, suitable for dynamic weighing (such as dynamic rail scales).
4. High accuracy and stability: Modern columnar sensors have high comprehensive accuracy, low creep error, and good long-term stability.

Product detail

Technical Specifications

Rated load	0.2~200t
Comprehensive precision	0.05~0.1%FS
Sensitivity	2.0 MV/V
Creep	±0.02%F·S/30min
Zero output	±1 %F·S
Zero temperature	±0.02 %F·S/10°C
Output temperature	±0.02%F·S/10°C
Working temperature	-20°C~+65°C
Input impedance	750±15Ω
Output impedance	700±5 Ω
Insulation resistance	> 5000 MΩ
Safety overload	150% F·S
Bridge voltage	Advise 10VDC
Material	Alloy steel
Connection type	Input(+):red input(-):black
	Output(+):green output(-):white