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Platform load cell scales are used in many industries, especially for weight measurements in commercial use. These load cells come in different types because each type is crafted to handle a specific range of weight, offer certain accuracy levels, and function effectively in designated environments.
There are the following types of platform scale load cells:Straight load cells, or axial load cells, are also known as column load cells. These load cells have a simple mechanical design. They have an O-shaped hoop set between two metals with four posts at the corners. This design enables the load cell to withstand a compression force directed along its axis. Due to this design, it is excellent for heavy structures, such as truck weight scales and large platform scale load cells, where forces are mainly applied in a straight line.
One of the common load cell types seen in small and medium industrial scale applications is the bending beam load cell. Its small size allows easy integration into platforms, hoppers, and conveyor systems. Its working principle involves a bent alloy beam that deflects under load, creating a strain that is transformed into an electrical signal. The main beam design enables it to offer fine resolution even at lower weight measurements. This characteristic makes it suitable for packaging and inventory control, among other uses. This load cell is also very affordable, making it attractive for many businesses.
Shear beam load cells are often deployed in heavy-duty applications. These cells are designed to handle extreme weights while still being accurate. Their shape resembles the letter 'H.' It is sturdy when placed under a load. These load cells are great for bulk storage and truck scales. This is because they survive tough conditions and provide reliable readings. They are an ideal choice for large-scale industries and companies needing trusted weight measurements.
These types of platform scale load cells are designed to work under compressive force. It makes them perfect for scales that need to measure the weight of items placed directly on top of the cell. These load cells' robust designs allow them to thrive under extreme weight conditions, making them popular in industrial applications and truck scales. Moreover, their precise load measurement capability allows them to maintain accuracy without external interference. This unique design results in minimal side load effects.
A load cell's functionality, strength, and durability depend largely on the materials used, plus the choice of materials, can significantly impact the load cells' performance. Below are the materials of platform scale load cells:
Alloy steel is the primary used material for building bending beam, shear beam, and compression load cells. This steel is selected for its strength, elasticity, and resistance to stress. These properties make it suitable for accurately measuring heavy loads. Generally, the alloy steel is treated to resist corrosion and suit specific environmental conditions. Other than that, a load cell made of alloy steel has excellent long-term stability and will keep measuring accurately for a long time.
Most industries demand higher protection against corrosion, so they switch to stainless steel material for their platform scale load cells. Food processing, marine, and chemical manufacturing industries all need this level of protection. This steel maintains structural integrity in aggressive environments. While it's more expensive, stainless steel is essential for food and chemical industries where corrosion can affect measurements. Moreover, other than its strength, this steel also adds to the scale's longevity.
Aluminum load cells are lightweight, hence suitable for portable scales and applications requiring quick responses. Even though they are lighter than steel, they still retain good elasticity. This feature allows them to bend under stress without losing their original shape. Often found in low- to medium-weight platforms, these load cells provide reliable measurements without excess weight. Also, they are more cost-effective than steel.
Elastomers are used in load cells due to their flexibility and ability to quickly return to shape after deformation. This property helps them measure dynamic loads. They are commonly found in these load cells: tension and serves applications. Their lightweight and durable design allows them to perform in places where other materials may fail from being bendable and vulcanizable. Moreover, they can take hybrid formulations and offer excellent damping. This versatility is why they are popular in portable and laboratory scales.
Many industries rely on precise weight measurements for their operations, as platform scale load cells are widely used across the industry. Below are the commercial scenarios:
Platform scale load cells are crucial for managing inventory in warehouses. They ensure barrels, pallets, and boxes have accurate weight measurements during loading and unloading. These load cells detect how much pressure the scales have under the items weight, enabling efficient tracking of stock levels. They provide the needed measurement precision to avoid over or under stocking. These cells boost workflow by quickly allowing staff to move precisely weighed items around without making them manually weigh them first.
Shipping and receiving operations heavily depend on platform scale load cells to measure packages accurately. These cells help businesses avoid extra shipping charges or delays caused by incorrect weights. They ensure that each package weight is correct before dispatching; this efficiency leads to better service delivery. In large settings, trucks and containers are weighed using these load cells to manage transport logistics better. This capability increases operational speed while minimizing costs attributed to weight discrepancies.
The agriculture industries also use platform scale load cells to measure and distribute farming products like fertilizers and feed. The scales utilize these load cells to give precise weight figures for trucks and bins, which promotes the farmers' safety and efficiency. Accurate weight measurements in crop handling prevent overloading trucks, thus saving time. These scales help manage resource application in fields and promote cost-saving measures through their precise functioning.
For manufacturing industries, platform scale load cells are important for raw material and product weight monitoring. They ensure that the right mix of materials is used during production. This accuracy avoids wastage and guarantees product quality. In the end-cycle, these scales weigh final products to determine they meet set standards. They then provide quality control and safety verification. Their reliable performance fosters better workflow and product consistency across various manufacturing sectors.
Transport industries also depend on platform scale load cells for truck and trailer weight audits. The cells prevent vehicles from going above weight restrictions by giving precise weight measurements. These load cells improve safety because trucks can be weighed before driving to avoid excessive load, and this cuts operating costs. Check these scales for compliance and efficiency in the busy road transport work environment as handy tools. This gives quick weight assessments without any guesswork.
Some factors should be considered when selecting load cells for platform scales. Below are these factors:
Consider how the platform will be used in business. If it is used for simple tasks, a standard load cell will work. If used in tough or unique situations, consider getting special load cells that can work under those conditions. Food and drug industries need load cells that can be cleaned easily. Outdoor industries need load cells that resist water and dust. Choose load cells based on how and where they will be used for the best performance.
The surrounding environment will affect the type of load cell selected. For the outdoors or aggressive climates, it is better to select a platform scale made of stainless steel to resist corrosion and weather elements. If used inside a building under controlled conditions, the steel alloy cells can be chosen, as these options may be more cost-effective. If the scale will be exposed to moisture or dust, getting one with a sealing protection level to resist these elements is best.
The required load capacity for the platform scale load cells depends on the maximum weight the scale will bear. Check the maximum weight the scale will hold and choose appropriate load cells that can handle that weight. If the load cells are always overloaded, they will wear out fast and not give correct readings. On the other hand, if the load cells are under capacity, there could be issues with the readings' accuracy. Compare the load cells' rated capacity against the weight range of the intended use.
The required measurement precision will determine which load cell should be used in the platform scale. For general use, select load cells with standard accuracy. High-precision applications, such as chemicals or pharmaceuticals weighing, need load cells with better accuracy. Make sure the load cells' accuracy is good enough for the intended tasks. Using more precise cells is better for high-end works to guarantee accurate measurements.
When selecting a load cell, consider how easy it will be to install them in the new or current systems. Simple platforms can work with basic load cells that are easy to put in place. Complex systems might need special load cells with extra features built in. Consider how quickly the load cells will be set up and if any changes will be needed to the current systems.
A1: When weight is applied, the electrical signals change, which are then measured and adjusted to display the weight on the scale.
A2: Steel alloy is used mostly. Corrosion-resistant stainless steel is used in harsh conditions, while aluminum suits portable equipment.
A3: Calibration involves applying known weights, adjusting the output to match, and creating a reference that improves accuracy and reliability.
A4: Yes, of course, but only if they are rated for protection against water and dust ingress, such as IP67 or IP68.
A5: They are used in large manufacturing, agriculture, transportation, and shipping industries for effective weight measurement.
