Load cells come in various shapes, sizes and capacities and are now the industry standard for all sorts of weighing. It can be a bit of a mine field trying to find the proper load cell for the application. We have listed probably the most common found today as well as their uses.
Single Point – Single point are probably the cheapest and many 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 kind of load cell can 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 in existence for a long time and are usually the business standard for most high capacity, compression applications. Canister type load cells can be used as Torque Transducer. This type of cell has a button on the top and bottom side and can be utilized 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 sort has the ability to rock on its mountings to support any misalignment in mounting surfaces whilst still being retained, this also permits limited movement to allow for thermal expansion and contraction in addition to lift off protection. This sort of cell is also available as being a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are generally found in all types of floor, platform and shipping scales today and provides an ideal solution for the majority of medium capacity weighing applications. Single ended shear cells have the capacity to withstand full capacity side load with no problems which makes them particularly suitable for weighing systems with mixers, blenders and agitators. This type are incredibly durable but can become costly and cumbersome to mount above 10,000kg. This kind of cell can also be available in weighing module form.
Tension Link – The tension link are suitable for applications including winching, hanging scales, crane weighing scales and lifting systems. This type of load cell offers superior accuracy at Miniature Load Cell. This type of cell has openings at either end to allow for quick link with shackles, wire rope, D links or any other rigging. Tension link load cells offer a rugged design for resistance to side loading.
Torsion Ring – Torsion ring certainly are a relatively new concept in design and offer an outstanding low profile solution for a wide range of weighing applications. Unlike standard compression load cells, which could 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 particular ring, optimum load introduction is assured and off-axis loads up to 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. Many types 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 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; they are linked to devices via cable. One of many issues with any weighbridge or floor scale is the chance of damaged cables. Utilizing the latest technology, wireless, load cells are now being provided and can 1 day become the industry standard. The 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 offer 3 Axis Load Cell when used 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 kind are used in crane scales, hanging scales, hoist scales and many tension applications.