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 searching for the proper load cell for the application. I have listed some of 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 can be found in most varieties of retail scales, counting scales, medical scales, parcel scales and postal scales. This type of load cell could also be used in platform scales and industrial weighing systems to provide accurate readings no matter the position of the load on the platform, reducing manufacturing costs.
Canister Type – Canister type have existed for a long time and are generally the market standard for the majority of high capacity, compression applications. Canister type load cells are used for Torque Transducer. This kind of cell features a button on the top and bottom side and can be utilized 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 numerous advantages over other designs. This sort has the ability to rock on its mountings to accommodate any misalignment in mounting surfaces whilst still being retained, this also permits limited movement to enable for thermal expansion and contraction along with 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 commonly found in all kinds of floor, platform and shipping scales today and offers a perfect solution for most medium capacity weighing applications. Single ended shear cells are able to withstand full capacity side load without any problems making them particularly ideal 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 cell is additionally obtainable in weighing module form.
Tension Link – The tension link are compatible with applications like winching, hanging scales, crane weighing scales and lifting systems. This sort of load cell offers superior accuracy at Button Load Cell. This type of cell has openings at either end to enable for convenient link with shackles, wire rope, D links or some other rigging. Tension link load cells offer a rugged design for effectiveness against side loading.
Torsion Ring – Torsion ring certainly are a fairly new concept in design and offer an excellent 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 by way of a centrally located annular ring. Using a central floating pin to send out load for this ring, optimum load introduction is assured and off-axis loads as much as three or four degrees can be tolerated without loss in performance. Proprietary mounting modules, which offer excellent versatility, are actually readily 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 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 – All of the above have one major flaw; they are attached to devices via cable. One of the primary problems with any weighbridge or floor scale is the chance of damaged cables. Utilizing the most advanced technology, wireless, load cells are being provided and can some day be the industry standard. All of the above load cells are actually obtainable 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 Force Sensor when utilized in either tension or compression and supply 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 employed in crane scales, hanging scales, hoist scales and most tension applications.