Integrated Load Cells for Original Equipment Manufacturers
Sartorius manufactures a wide range of load cells that can be integrated into any machinery or instrumentation where the ability to capture accurate and reproduceable weighing data is an important function. In this manner, the load cells, also known as weighing cells or weighing sensors, are integrated into customer solutions.
Featuring the latest electromagnetic force compensation technology, and with weight capacities up to 8.2kg and readability from 0.01g down to 1ug. Sartorius load cells are exceptionally fast, robust and reliable and come in different configurations to allow easy installation into various applications like:
- Dispenser and pipette calibration
- Check Weighing
- Automated Dosing
- Tensile Testing
- Batch Processing
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Decision Criteria for Weighing Cell Integrators
Precision measurement demands selecting the right weighing cells (also called load cells) to ensure accuracy, reliability, and efficiency.
This infographic explores the key decision criteria guiding the selection process, including required certifications, easy integration, environmental considerations, and technical support. Understanding these factors helps businesses make informed choices that align with their operational needs and regulatory requirements. Explore the essential aspects that define the optimal weighing cell solution for your applications.
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Precision Weighing Cells
The Precision weighing cells cover a range of up to 8.2kg with a resolution of 0.01-0.001g. The weighing system is entirely machine-made from an aluminum block. This means that mechanical and temperature influences created by the inclusion of other materials are excluded, ensuring optimal performance.
- Compact design
- No mechanical tension
- Fast measurement determination
Analytical Weighing Cells
The Analytical weighing cells cover a range of up to 600g with a resolution of 0.1mg. The fully automatic production of the weighing system from an aluminum block prevents assembly errors. The weighing system is also available with an internal adjustment function on request. This ensures the unit can be easily and quickly recalibrated for the environment in which it is being used.
- Compact design
- No mechanical tension
- Fast measurement determination
- Overload protection
Semi Micro & Micro Weighing Cells
The Semi Micro and Micro cells cover a weighing range of up to 240g with a resolution of 0.01-0.001mg. These high-resolution load cells use the same innovative weighing and electronics technology found in our premium laboratory balances. In addition, other weighing systems have been developed for OEM use only. These systems are characterized by increased IP protection and slim design.
- Compact design
- No mechnical tension
- Fast measurement determination
- Overload protection
Explosion Proof Weighing Cells
The Explosion Proof weighing cells is manufactured specifically for situations where potentially hazardous explosive products are present, these units are designed to meet all relevant safety standards associated with ATEX, IECEx, etc. They are also certified by FM Approvals for use in Class I, II, III, Division 1 and Class I, Zone 1. They come with specially protected electronics and weighing modules and include all the necessary cabling and power supply for a safe installation. For details refer to the relevant user manuals.
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Frequently Asked Questions
A load cell is an electromechanical sensor that converts a force—such as weight, tension, or compression—into an electrical signal that can be measured and recorded.
It works by detecting the deformation (strain) of a material when a load is applied. This deformation causes a change in electrical resistance within strain gauges embedded in the load cell, which is then converted into a proportional electrical output signal.
Load cells are widely used in weighing applications because they provide precise and reliable measurements. They are essential components in industrial scales, laboratory balances, and many OEM (Original Equipment Manufacturer) systems where accurate force measurement is critical.
There are different types of load cells, including strain gauge, hydraulic, pneumatic, and capacitive, but strain gauge load cells are the most common due to their accuracy and versatility.
- Strain Gauge Load Cells: The most common type, they use strain gauges bonded to a deformable element. When force is applied, the element bends slightly, changing the electrical resistance of the gauges, which is converted into a measurable signal.
- Hydraulic Load Cells: These use fluid pressure changes within a piston-cylinder system to measure force.
- Pneumatic Load Cells: These measure force based on changes in air pressure applied to a diaphragm.
They are closely related but not exactly the same. A load cell is the sensor that converts force into an electrical signal. A weighing cell usually includes a load cell plus additional electronics to process and display the weight. In everyday use, the terms are often used interchangeably, but technically, a weighing cell is a more complete measuring unit.
A Sartorius weigh cell is a force sensor based on the mechanical measuring system of a Sartorius precision | analytics or microbalance.
1. The weigh cell works according to the principle of electromagnetic force compensation. The necessary counterforce for the applied load is generated with the help of a coil, which acts as an electromagnet in a magnetic field of a permanent magnet.
2. In weigh cells with electromagnetic force compensation, the counterforce to the applied load is generated with the help of a coil that acts as an electromagnet in a magnetic field of a permanent magnet.
Sartorius weigh cells can be used wherever the mass of a product meets a quality requirement. Starting with a laboratory application up to an automated production line.
The Sartorius weigh cells have an RS232 interface via which both data and commands can be exchanged. Additional interface formats can be generated via an external converter.
The Sartorius weigh cells can be adjusted and adapted to the ambient conditions using the free configuration software.
A display is not necessary for ongoing operation because the communication takes place via the interface. During commissioning, the display can simplify the run-in phase with its key commands.