Load cells come in many different 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 correct load cell for the application. We have listed many of the most common found today as well as their uses.
Single Point – Single point are the cheapest and most popular type on the market today. Because of the price and reliability, they can be found in most types 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 offer accurate readings no matter the positioning of the load on the platform, reducing manufacturing costs.
Canister Type – Canister type have been in existence for a long period and are usually the market standard for most high capacity, compression applications. Canister type load cells can be used as Rotary Torque Sensor. 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 too permits limited movement to permit for thermal expansion and contraction in addition to lift off protection. This type of cell can also be available being a weighing module kit.
Single Ended Shear Beam – Single ended shear beam are generally found in all kinds of floor, platform and shipping scales today and offers a perfect solution for many medium capacity weighing applications. Single ended shear cells have the capacity to withstand full capacity side load without any problems making them particularly ideal for weighing systems with mixers, blenders and agitators. This type are really 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 Button Load Cell. This type of cell has openings at either end to permit for quick link to shackles, wire rope, D links or any other rigging. Tension link load cells provide a rugged design for resistance to side loading.
Torsion Ring – Torsion ring are a relatively recent concept in design and provide a great low profile solution for a variety of weighing applications. Unlike standard compression load cells, which may 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 send out load to this ring, optimum load introduction is assured and off-axis loads approximately three or four degrees could 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 is made up of 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 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 linked to devices via cable. One of the main issues with any weighbridge or floor scale is the possibility of damaged cables. Utilizing the latest technology, wireless, load cells are actually being presented and could some day be the industry standard. The above load cells are offered in wireless format, although omqzxd technology comes at greatly increased price.
S Type – S type get their name from their shape, being the letter ‘S’. S type load cells can provide 3 Axis Load Cell when used 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 could be attached. This kind are used in crane scales, hanging scales, hoist scales and many tension applications.