Single Point Platform Load Cell

What Is a Single-Point Load Cell, And How Does It Work?

A single-point load cell is one of the major categories or types of load cell commonly found within the weighing industry. Other types include, for example, compression, tension, and beam. The defining characteristic of a single point is its ability to accommodate off-center loading. Typically, the load needs to be aligned with the cell to maintain accurate readings. If the weight moves off-axis, it introduces an error. Single-points, due to their geometric design, allow for some flexibility, and can thus maintain accurate readings even if the weight is unevenly distributed.

This ability makes them perfect for use in platform scales where there can be some variability in load placement. Objects can be placed anywhere on the platform, and their weight will still be measured accurately. Practically this is of enormous value, as it removes the effects of human error in placement. Businesses can avoid the need for specialist equipment or training simply to get accurate readings. Furthermore, a scale can be built using a single cell, as opposed to needing a combination of cells placed at each corner.

Working Principle

Single-points, like all other modern load cells, are essentially transducers that convert force or weight into an electrical signal. They do this by using strain gauges, which are attached to the body of the load cell. When under load, the shape of the load cell deforms slightly. This change is detected by the strain gauges which distort in unison with the body, resulting in a change of voltage. This voltage signal is proportional to the initial force or weight and can thus be used to calculate it.

Technical Data

Single-point load cells are designed to withstand the harsh conditions of industrial production plants and are normally available from protection class IP65. In contrast to other load cells, they are optimized to compensate for asymmetric loads and calibrated accordingly, which means that they can accurately measure a load, even if it is placed on one corner of the platform. The datasheet contains all parameters to be taken into account when manufacturing a weighing device with a single-point load cell. These include the rated load, the minimum scale division for the calculation of the maximum tare weight, and the limit load. Using single-point load cells, it is relatively easy to construct platform scales. All that is essentially required is a load cell placed between two metal plates. As most weighing equipment is subject to verification, single-point load cells are generally verifiable.

Design

Single-point load cells come in numerous shapes and sizes to accommodate different types of applications. All of them feature an inner aperture, which is a geometrically precise cut-out of the body. This is often what visually distinguishes them from beam load cells. This aperture controls the thickness of the metal at various points across the load cell body and is the key to the cell's ability to accommodate off-center loading.

Single-points are usually constructed of either stainless steel or high-grade aluminum, the latter being most suited to lower capacity use. They come in both potted or hermetically-sealed versions depending on the degree of environmental protection needed, with some models offering ATEX approval for use in hazardous areas.

Buy Single Point Platform Load Cell

Rudrra has a comprehensive catalog of single-point load cells for purchase, accommodating both large and small volume orders. All of our products are entirely manufactured by us, ensuring high-quality materials and excellent build quality. Should you need something unique, we can help you with a custom solution. We can offer several services, including mechanical design, electrical and software development, testing and calibration, regulatory and certification governance, up to fully project-managed projects. Contact us to find out more about how we can help.

The Single Point Platform Load Cell manufactured by Rudrra is one of the best in the market. This product of ours is designed to weigh benches or tabletops. The features of the product are as follows:

• The product is easily installable
• This tends to gain speed while weighing because of its high-intensity natural frequency
• It has a range of measuring tools along with it that helps weigh different types of materials
• This product is perfect for mounting dimensions

The Single Point Platform Load Cell has been devised keeping in mind the international standards of efficiency as well as design. The manufacturers at Rudrra have undertaken several tests of this instrument to ensure that the product is endurable and sturdy. The best part of this product is that you do not have to worry about spending too much on this instrument. This is a low-profile product and is available online.