Precision Load Cell

Product Specifications

Technical details and manufacturing context for Precision Load Cell

Definition

Within the 'Special Properties' context, the Precision Load Cell serves as the core measurement component that enables accurate force, weight, or torque quantification in industrial systems. It provides the critical data input for process control, quality assurance, and automation by translating physical loads into reliable, high-resolution electrical signals. This load cell is designed for integration into machinery and equipment where precise measurement is essential. It is available in various rated capacities from 0.5 to 500 tonnes, with accuracy classes C3 to C6 per OIML R60, suitable for legal metrology or high-precision weighing. The sensing element is typically made of stainless steel (17-4PH or 316L), aluminum alloy for lower capacities, or nickel-plated steel, offering corrosion resistance and durability. Key performance parameters include nonlinearity, hysteresis, repeatability, and creep, all within ±0.01% to ±0.05% of full scale, ensuring consistent and reliable measurements. The load cell operates on strain gauge technology, producing a millivolt output proportional to the applied load. It requires an excitation voltage of 5-12 V DC and provides a rated output of 1.0-2.0 mV/V. The bridge resistance is typically 350-700 ohms, and the compensated temperature range is -10°C to +40°C, with an operating range of -20°C to +70°C. Temperature effects on zero and span are minimal, within ±0.02% to ±0.05% per 10°C. The insulation resistance is at least 5000 MΩ at 50 V DC, and the IP rating ranges from IP65 to IP68 for harsh environments. Safe overload is 150% of full scale, and ultimate overload is 300%. Cable lengths from 3 to 12 meters are standard. For any application, verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The Precision Load Cell operates based on strain gauge technology. When a force is applied, a sensing element (typically a metal beam or diaphragm) deforms, changing the electrical resistance of bonded strain gauges. These gauges are arranged in a Wheatstone bridge circuit, producing a proportional millivolt output signal. This signal is amplified and calibrated to represent the precise load value. The output is linear and repeatable, enabling accurate measurement in industrial systems.

Common Materials

Stainless Steel (17-4PH or 316L), Aluminum Alloy (for lower capacity cells), Nickel-plated Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Capacity	0.5–500 t	Select based on maximum expected load with safety factor.
Accuracy Class	C3–C6	C3 for legal metrology, C6 for high-precision weighing.OIML R60
Nonlinearity	±0.02–±0.05 %FS	Lower value indicates better linearity.
Hysteresis	±0.02–±0.05 %FS	Difference in output at same load during loading and unloading.
Repeatability	±0.01–±0.03 %FS	Consistency of output under repeated identical loads.
Creep (30 min)	±0.02–±0.05 %FS	Output change under constant load over 30 minutes.
Input Resistance	350–700 Ω	Typical bridge resistance; affects excitation current.
Output Resistance	350–700 Ω	Should match input resistance for bridge balance.
Excitation Voltage	5–12 V DC	Recommended range; higher voltage increases output but may cause self-heating.
Rated Output	1.0–2.0 mV/V	Signal at rated capacity per volt of excitation.
Compensated Temperature Range	-10–+40 °C	Range over which temperature effects are compensated.
Operating Temperature Range	-20–+70 °C	Extended range; performance may degrade outside compensated range.
Temperature Effect on Zero	±0.02–±0.05 %FS/10°C	Change in zero output per 10°C change.
Temperature Effect on Span	±0.02–±0.05 %FS/10°C	Change in sensitivity per 10°C change.
Insulation Resistance	≥5000 MΩ	At 50 V DC; ensures electrical safety.
IP Rating	IP65–IP68	IP68 for submersible applications.IEC 60529
Material	Stainless steel 17-4PH	Corrosion-resistant; suitable for harsh environments.ASTM A693
Safe Overload	150 %FS	Maximum load without permanent damage.
Ultimate Overload	300 %FS	Maximum load before mechanical failure.
Cable Length	3–12 m	Standard lengths; custom available.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Elastic Element Part
Deforms under applied load to create measurable strain

Material: Stainless Steel or Aluminum Alloy
Strain Gauges Part
Convert mechanical strain into electrical resistance changes

Material: Constantan or Karma foil with polyimide backing
Sealing Part
Protects internal components from moisture, dust, and environmental factors

Material: EPDM or Viton rubber, sometimes with welded stainless steel
Cable/Connector Part
Transmits electrical signals to measurement instrumentation

Material: Shielded cable with PVC or PUR jacket, metal connector

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Precision Load Cell.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Special Properties

View system integration details

Manufacturers of Precision Load Cell

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

HaiboSensor

Guangdong, CN

Also makes: Force Sensor/Load Cell, Weighing Platform, Aluminum Mounting Bracket and 5 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the rated capacity range of this load cell?

The rated capacity ranges from 0.5 to 500 tonnes, depending on the model. Select based on the maximum expected load with a safety factor.

What accuracy classes are available?

Accuracy classes C3 to C6 per OIML R60 are available. C3 is suitable for legal metrology, while C6 is for high-precision weighing.

What materials are used in construction?

Common materials include stainless steel (17-4PH or 316L), aluminum alloy for lower capacity cells, and nickel-plated steel. These provide corrosion resistance and durability.

What is the operating temperature range?

The compensated temperature range is -10°C to +40°C, and the operating range is -20°C to +70°C. Performance may degrade outside the compensated range.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 150% of rated capacity (overload protection)
other spec:	Accuracy: ±0.05% of full scale, Excitation voltage: 5-15 VDC, Output: 2 mV/V typical
temperature:	-40°C to +85°C

Product Specifications

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