Load cells come in many different shapes, sizes and capacities and are now the industry standard for all types of weighing. It could be a bit of a mine field searching for the multi axis force sensor for the application. I have listed probably 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 are available in most kinds of retail scales, counting scales, medical scales, parcel scales and postal scales. This sort of load cell could also be used in platform scales and industrial weighing systems to offer accurate readings regardless 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 most high capacity, compression applications. Canister type load cells can be used as single and multi-weighing applications. This kind of cell has a button on the top and bottom side and can be used 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 type has the capacity to rock on its mountings to support any misalignment in mounting surfaces whilst still being retained, this too permits limited movement to permit for thermal expansion and contraction as well as lift off protection. This type of cell is additionally available as being a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are commonly present in all kinds of floor, platform and shipping scales today and supplies an ideal solution for most medium capacity weighing applications. Single ended rotary torque sensor have the capacity to withstand full capacity side load without the problems causing them to be particularly appropriate for weighing systems with mixers, blenders and agitators. This sort are really durable but can 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 compatible with applications such as winching, hanging scales, crane weighing scales and lifting systems. This sort of load cell offers superior accuracy at high capacity weighing. This type of cell has openings at either end to allow for easy 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 are a fairly new concept in design and offer an outstanding low profile solution for a variety of weighing applications. Unlike standard compression load cells, which can readily are afflicted by off-axis loading problems, torsion rings are loaded through a centrally located annular ring. Using a central floating pin to deliver load to this particular ring, optimum load introduction is assured and off-axis loads up to three or four degrees can be tolerated without loss in performance. Proprietary mounting modules, which offer excellent versatility, are actually designed for both process weighing applications and platform scales.
Weighing Modules – Weighing module generally consists of 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 dzrgzs 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 above have one major flaw; these are attached to devices via cable. One of the primary problems with any weighbridge or floor scale is the possibility of damaged cables. Making use of the most advanced technology, wireless, load cell are now being provided and could one day become the industry standard. All of the above load cells are obtainable in wireless format, even though this technology comes at greatly increased price.
S Type – S type get their name from their shape, being the letter ‘S’. S type load cells provides an electronic output 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 may be attached. This sort are employed in crane scales, hanging scales, hoist scales and a lot tension applications.