Load cells come in many different 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 and their uses.
Single Point – Single point are probably the cheapest and most popular type on the market today. Because of the price and reliability, they are available 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 irrespective of the positioning of the load on the platform, reducing manufacturing costs.
Canister Type – Canister type have been around for a long time and are usually the industry standard for many high capacity, compression applications. Canister type load cells can be used for Torque Measurement. This sort of cell includes 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 several advantages over other designs. This sort has the capacity to rock on its mountings to allow for any misalignment in mounting surfaces whilst still being retained, this also permits limited movement to permit for thermal expansion and contraction along with lift off protection. This kind of cell can also be available as being a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are generally present in all sorts of floor, platform and shipping scales today and offers an ideal solution for most medium capacity weighing applications. Single ended shear cells have the capacity to withstand full capacity side load with no problems making them particularly suitable for weighing systems with mixers, blenders and agitators. This type are incredibly durable but could become costly and cumbersome to mount above 10,000kg. This sort of cell is additionally obtainable in weighing module form.
Tension Link – The tension link are suitable for applications like winching, hanging scales, crane weighing scales and lifting systems. This type of load cell offers superior accuracy at Compression Load Cell. This type of cell has openings at either end to permit for convenient link with shackles, wire rope, D links or other rigging. Tension link load cells offer a rugged design for effectiveness against side loading.
Torsion Ring – Torsion ring really are a relatively recent concept in design and supply an outstanding low profile solution for a wide range of weighing applications. Unlike standard compression load cells, which may readily suffer from off-axis loading problems, torsion rings are loaded through a centrally located annular ring. Simply by using a central floating pin to transmit load to this ring, optimum load introduction is assured and off-axis loads approximately 3 or 4 degrees could be tolerated without loss in performance. Proprietary mounting modules, which offer excellent versatility, are available for both process weighing applications and platform scales.
Weighing Modules – Weighing module generally is made up of load cell with mounting kit. Various kinds 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 used 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 may be attached to devices via cable. One of many problems with any weighbridge or floor scale is the chance of damaged cables. Utilizing the latest technology, wireless, load cells are being provided and may 1 day function as the industry standard. All of the above load cells are offered in wireless format, although omqzxd technology comes at greatly increased price.
S Type – S type have their name off their shape, being the letter ‘S’. S type load cells can provide 3 Axis Load Cell when found in either tension or compression and provide superior side load rejection. This type 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 most tension applications.