Load Cells

What is load cell?

Load cell is a type of transducer which performs the functionality of converting force into an electric output which can be measured. You can find load cell at the heart of any weighing machine or electric scales. This type of transducer is highly accurate which provides user with required information that is difficult to obtain by other technology owing to certain commercial factors.


It is basically a device that measures strain and then converts force into electric energy which serves as measurement for scientists and workers. The strain measurement by load cells helps in maintaining integrity of the unit under pressure and protects people and equipment nearby.


Uses

The usage of this transducer is not limited to electronic scales. Apart from this, it is used in industrial scales, load-testing machines, flow-meters, etc.


Functionality

It makes use of different operating principles namely pneumatic, strain gauge and hydraulic load cells. These load cells are usually attached to support beam or structural bearing of an application which endures pressures and stresses often with appropriate adhesive or superglue.




Types of Load Cells

They are available in different sizes, shapes and capacities. There are different types of load cells available:


  • Canister Type This type of load cell is usually used for single as well as multi-weighing applications. It is used in weigh axle weighing scales, tank scales, weighbridges, vessel weighing applications, etc.
  • Single Point Owing to its reliability and price, this type of load cell can be found in several types of counting scales, postal, parcel, medical and retail scales. It is used in industrial weighing systems, platform scales and provides accurate readings regardless of the position of the load on platform, which in turn reduces manufacturing costs as well.
  • Single and Double Ended Shear Beam It has number of benefits, when compared to other types of designs. It permits limited movement to allow thermal contraction and expansion and lifts off protection.
  • Tension Link It is suitable for applications like hanging scales, lifting systems, winching and crane weighing scales. A good thing about this load cell is that it provides great level of accuracy at high capacity weighing.
  • Torsion Ring It offers excellent versatility and is now available for platform scales as well as for weighing applications.
  • S Type This type of load cells provide you with digital output when used in compression or tension. Further, it provides superior side load rejection and is mainly used in wireless format and this technology is available at great price.
  • Weighing modules It comprises of a load cell with mounting kit. Load cells which comprise of weighing modules are useful in silo weighing, axle weighing scales, vehicle scales, tank scales and weighbridges.
  • Wireless By making use of wireless technology, wireless type of load cells are now being made available in wireless format, even though this technology is available at greatly increased price.