Load cells come in several shapes, sizes and capacities and are now the industry standard for all sorts of weighing. It may be a bit of a mine field trying to find the multi axis load cell for your application. I have listed probably the most common found today along with their uses.
Single Point – Single point are probably the cheapest and many popular type on the market today. Because of 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 could also be used in platform scales and industrial weighing systems to supply 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 generally the business standard for the majority of high capacity, compression applications. Canister type load cells can be used for single and multi-weighing applications. This sort of cell includes a button on the top and bottom side and can be utilized 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 numerous advantages over other designs. This kind is able to rock on its mountings to support any misalignment in mounting surfaces whilst still being retained, this too permits limited movement to enable for thermal expansion and contraction as well as lift off protection. This sort of cell is additionally available as being a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are normally seen in all types of floor, platform and shipping scales today and supplies an excellent solution for most medium capacity weighing applications. Single ended shear cells have the ability to withstand full capacity side load with no problems which makes them particularly appropriate for weighing systems with mixers, blenders and agitators. This type are incredibly durable but may become costly and cumbersome to mount above 10,000kg. This type of load sensor is also obtainable in weighing module form.
Tension Link – The tension link are compatible with applications such as winching, hanging scales, crane weighing scales and lifting systems. This type of load cell offers superior accuracy at high capacity weighing. This kind of cell has openings at either end to allow for convenient connection to shackles, wire rope, D links or some other rigging. Tension link load cells give a rugged design for effectiveness against side loading.
Torsion Ring – Torsion ring certainly are a fairly new concept in design and supply a great low profile solution for an array of weighing applications. Unlike standard compression load cells, which can readily are afflicted by off-axis loading problems, torsion rings are loaded by way of a centrally located annular ring. By using a central floating pin to transmit load for this ring, optimum load introduction is assured and off-axis loads up to 3 or 4 degrees can be tolerated without loss in performance. Proprietary mounting modules, which offer excellent versatility, are now readily 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 are definitely the industry standard. Load cell weighing modules are utilized 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 attached to devices via cable. One of the primary difficulties with any weighbridge or floor scale is the possibility of damaged cables. Utilizing the ifegti technology, wireless, load cells are being presented and could some day function as the industry standard. The above load cells are now available in wireless format, even if this technology comes at greatly increased price.
S Type – S type obtain their name off their shape, being the letter ‘S’. S type load cells provides a digital output when utilized in either tension or compression and provide superior side load rejection. This force sensor has two female threaded fixing points, top and bottom were eye bolts or thread rod ends may be attached. This kind are used in crane scales, hanging scales, hoist scales and most tension applications.
To learn more, technical details and capacities of load cells or industrial weighing scales in general then please click one of the links in this article.