Load cells come in many different shapes, sizes and capacities and are now the industry standard for all sorts of weighing. It can be a bit of a mine field looking for the correct load cell for the application. We have listed some of the most common found today and their uses.
Single Point – Single point are some of the cheapest and a lot popular type on the market today. Due to their price and reliability, they may be found in most types of retail scales, counting scales, medical scales, parcel scales and postal scales. This kind of load cell can also be used in platform scales and industrial weighing systems to supply accurate readings no matter the positioning of the load on the platform, reducing manufacturing costs.
Canister Type – Canister type have been around for a long period and tend to be the business standard for most high capacity, compression applications. Canister type load cells are used for Torque Transducer. This kind of cell features a button on the top and bottom side and can be utilized in compression only. Canister type load cells are used in tank scales, vessel weighing applications, axle weighing scales, truck weighing, vehicle scales and weighbridges. Canister type load cells offer accurate weighing in harsh environments.
Double Ended Shear Beam – For medium to high capacity applications, the double ended shear beam offers several advantages over other designs. This sort has the ability to rock on its mountings to allow for any misalignment in mounting surfaces whilst still being retained, this too permits limited movement to permit for thermal expansion and contraction along with lift off protection. This kind of cell is also available as a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are normally seen in all sorts of floor, platform and shipping scales today and provides an excellent solution for most medium capacity weighing applications. Single ended shear cells have the capacity to withstand full capacity side load without the problems causing them to be particularly ideal for weighing systems with mixers, blenders and agitators. This sort are extremely durable but can become costly and cumbersome to mount above 10,000kg. This sort of cell is additionally available in weighing module form.
Tension Link – The tension link are suitable for applications such as winching, hanging scales, crane weighing scales and lifting systems. This sort of load cell offers superior accuracy at Compression Load Cell. This sort of cell has openings at either end to permit for easy link to shackles, wire rope, D links or any other rigging. Tension link load cells offer a rugged design for effectiveness against side loading.
Torsion Ring – Torsion ring certainly are a fairly new concept in design and supply an excellent low profile solution for a variety of weighing applications. Unlike standard compression load cells, which can readily suffer from off-axis loading problems, torsion rings are loaded via a centrally located annular ring. Simply by using a central floating pin to send out load to this ring, optimum load introduction is assured and off-axis loads up to 3 or 4 degrees may be tolerated without loss in performance. Proprietary mounting modules, that provide excellent versatility, are actually available for both process weighing applications and platform scales.
Weighing Modules – Weighing module generally includes a load cell with mounting kit. Many types of now come supplied as modules but generally single or double ended shear beam and canister type are definitely the industry standard. Load cell weighing modules are employed in tank scales, silo weighing, vessel weighing applications, axle weighing scales, truck weighing, vehicle scales and weighbridges.
Wireless – The above have one major flaw; they are attached to devices via cable. One of the primary issues with any weighbridge or floor scale is the possibility of damaged cables. Making use of the most advanced technology, wireless, load cells are actually being presented and can one day be the industry standard. All of the above load cells are now obtainable in wireless format, although omqzxd technology comes at greatly increased price.
S Type – S type get their name from their shape, being the letter ‘S’. S type load cells can provide 3 Axis Force Sensor when found in either tension or compression and provide superior side load rejection. This kind of cell has two female threaded fixing points, top and bottom were eye bolts or thread rod ends could be attached. This type are used in crane scales, hanging scales, hoist scales and a lot tension applications.