Load cells come in various shapes, sizes and capacities and are now the industry standard for all types of weighing. It can be a bit of a mine field searching for the proper load cell for your application. I have listed some of the most common found today as well as their uses.
Single Point – Single point are probably the cheapest and most 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 type of load cell can also be used in platform scales and industrial weighing systems to offer accurate readings regardless of the position of the load on the platform, reducing manufacturing costs.
Canister Type – Canister type have been around for some time and are generally the industry standard for many high capacity, compression applications. Canister type load cells can be used for Torque Transducer. This type of cell features a button on the top and bottom side and can be used in compression only. Canister type load cells are employed 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 a number of advantages over other designs. This type 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 enable for thermal expansion and contraction along with lift off protection. This kind of cell is also available as being a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are commonly present in all sorts of floor, platform and shipping scales today and supplies an ideal solution for most medium capacity weighing applications. Single ended shear cells are able to withstand full capacity side load without any problems causing them to be particularly suitable for weighing systems with mixers, blenders and agitators. This kind are extremely durable but can become costly and cumbersome to mount above 10,000kg. This sort of cell is also offered in weighing module form.
Tension Link – The tension link are suitable for applications like winching, hanging scales, crane weighing scales and lifting systems. This kind of load cell offers superior accuracy at Button Load Cell. This kind of cell has openings at either end to allow for convenient link to shackles, wire rope, D links or other rigging. Tension link load cells give a rugged design for effectiveness against side loading.
Torsion Ring – Torsion ring are a relatively new concept in design and supply a great low profile solution for a variety of weighing applications. Unlike standard compression load cells, which may readily have problems with off-axis loading problems, torsion rings are loaded via a centrally located annular ring. Using a central floating pin to send out load to this ring, optimum load introduction is assured and off-axis loads approximately three or four degrees can be tolerated without loss in performance. Proprietary mounting modules, that provide excellent versatility, are available for both process weighing applications and platform scales.
Weighing Modules – Weighing module generally includes a load cell with mounting kit. Various kinds of now come supplied as modules but generally single or double ended shear beam and canister type would be 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 suggestions above have one major flaw; these are connected to devices via cable. One of the main problems with any weighbridge or floor scale is the chance of damaged cables. Utilizing the latest technology, wireless, load cells are actually being provided and may 1 day be the industry standard. The suggestions above load cells are actually available in wireless format, although omqzxd technology comes at greatly increased price.
S Type – S type obtain their name using their shape, being the letter ‘S’. S type load cells can provide Multi Axis Load Cell when utilized in either tension or compression and offer superior side load rejection. This sort of cell has two female threaded fixing points, top and bottom were eye bolts or thread rod ends could be attached. This kind are utilized in crane scales, hanging scales, hoist scales and many tension applications.