Load cells come in several shapes, sizes and capacities and are now the industry standard for all types of weighing. It can be a bit of a mine field looking for the proper load cell for the application. I have listed probably the most common found today as well as their uses.
Single Point – Single point are the cheapest and a lot popular type on the market today. Due to their price and reliability, they may be found in most varieties 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 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 market standard for many high capacity, compression applications. Canister type load cells can be used as Torque Transducer. This kind of cell has a button on the top and bottom side and may be used in compression only. Canister type load cells are utilized 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 permit for thermal expansion and contraction in addition to lift off protection. This kind of cell is additionally available as a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are commonly seen in all sorts of floor, platform and shipping scales today and offers an excellent solution for many medium capacity weighing applications. Single ended shear cells have the ability to withstand full capacity side load without the problems which makes them particularly ideal for weighing systems with mixers, blenders and agitators. This sort are extremely 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 compatible with applications such as 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 enable for quick link with shackles, wire rope, D links or some other rigging. Tension link load cells provide a rugged design for potential to deal with side loading.
Torsion Ring – Torsion ring really are a fairly new concept in design and offer a great low profile solution for a wide range of weighing applications. Unlike standard compression load cells, which can readily are afflicted by off-axis loading problems, torsion rings are loaded via a centrally located annular ring. Using a central floating pin to transmit load for this ring, optimum load introduction is assured and off-axis loads approximately three or four degrees may be tolerated without loss in performance. Proprietary mounting modules, that offer 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 types of now come supplied as modules but generally single or double ended shear beam and canister type are 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 suggestions above have one major flaw; they are linked to devices via cable. One of the main problems 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 made available 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 get their name using their shape, being the letter ‘S’. S type load cells provides Multi Axis Load Cell when utilized in either tension or compression and provide 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 type are used in crane scales, hanging scales, hoist scales and many tension applications.