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High precision ESMLS16 30t column type weighing load cell sensor for alloy steel

The ESMLS16 Flange column type weighing sensor module, integrating column-type weighing sensor, upper and lower flange mounting structure, load-bearing base, lateral limit, overload protection, and sealing protection into one unit, made of high-strength alloy steel or stainless steel in one piece. Based on the principle of resistance strain measurement, it features uniform force distribution, high rigidity, good stability, low creep, and strong impact resistance. It has both tension and compression measurement functions, with upper and lower standard flanges connected, requiring no additional brackets, making installation simple, alignment convenient, and suitable for tanks, hoppers, reactors, batching systems, and large-scale equipment for online weighing. The entire unit is laser-welded and sealed, with a protection level of up to IP67/IP68, waterproof, dustproof, and corrosion-resistant, making it suitable for complex environments such as outdoors, chemical plants, sewage, and food processing. It offers high measurement accuracy, up to 0.02%–0.05% FS, supporting mV/V, 4–20mA, RS485 Modbus signal outputs, and multiple units can be networked in parallel, with a corresponding junction box for angular difference calibration. It comes with anti-tilt and lateral limit structures to effectively counteract eccentric loads and lateral forces, ensuring long-term measurement stability, and is widely used in industrial batching, static storage weighing, trade settlement, and automated closed-loop control scenarios.

product details

Working Principle

The ESMLS16 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

Sturdy structure with strong impact and fatigue resistance, suitable for long-term continuous heavy-duty work
Stable measurement accuracy, low temperature drift, and minimal zero drift over long-term use
Wide range coverage, capable of meeting weighing needs from tens of tons to several thousand tons

APPLICATION SCENARIOS

1. Transportation: truck scales, floor scales, rail scales, used for static/dynamic weighing of freight vehicles;
2. Chemical / Building Materials: weight monitoring and quantitative control of large silos, reaction kettles, mixing tanks, and batching systems;
3. Energy / Water Conservancy: load monitoring of oil storage tanks, hydroelectric station gates / hoists;
4. Metallurgy / Ports: large platform scales, crane overload protection, container weighing.

Product detail

Technical Specifications

Rated load	0~30t
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