Views: 9 Author: Site Editor Publish Time: 2024-08-29 Origin: Site
The manufacturing industry has seen a resurgence in recent years, spurred by initiatives like the Belt and Road Initiative. This revival has led to a boom in the weighing industry, particularly in the market for electronic floor scales. However, the market has become highly competitive, with a wide range of prices and varying quality. Buyers often face a dilemma: low-priced scales may seem suspicious, while high-priced ones can exceed budgets and raise concerns about after-sales service.
When it comes to quality, the brand behind the scale plays a significant role. Established brands often have a track record of reliability, customer support, and product innovation. Investing in a well-known brand can provide peace of mind, knowing that you’re purchasing a scale with proven performance and after-sales support.
METTLER TOLEDO: Known for their precision and advanced technology.
Avery : Offers a wide range of durable and reliable scales.
Rice Lake : Renowned for their robust construction and high accuracy.
QC Weighing：specializes in wholesale of heavy industrial precision scales such as truck scales.
While it’s tempting to equate a higher price with better quality, this isn’t always the case. Some famous scale brands tend to be high-priced, with superior internal components like weighing sensors and instruments that are unmatched by most domestic manufacturers. Some scales are priced higher due to brand name rather than superior features. It’s essential to look beyond the price tag and evaluate the scale based on its performance, durability, and features.
The key is to find a balance where you’re getting a scale that meets your needs without overpaying for unnecessary features. Consider what’s most important for your operations—whether it’s accuracy, durability, or advanced features—and choose a scale that offers the best value for those criteria. Today, many chinese electronic floor scales offer good quality at a significantly lower price. For budget-conscious users, QC Weighing are a viable alternative. When selecting a scale supplier , consider the manufacturer's strength, after-sales service, product technology, and configuration. By comparing multiple brands, you can find a product that fits your needs and budget.
The sensor in a floor scale converts mass signals into measurable electrical signals, making it crucial to choose the right one. The sensor's performance depends on its ability to function in the actual working environment, affecting the scale's overall reliability, safety, and lifespan.
The metal used in the sensor's elastic body is critical. When external forces are applied, micro-strains occur between tiny grains within the metal. After the force is removed, these strains disappear, but whether the metal fully returns to its original state depends on its quality. The metal material of the elastic body used in the floor scale weighing sensor, due to its complex internal organizational structure, will produce micro-strain between tiny grains when subjected to external force. After the external force disappears, the micro-strain disappears, but whether it can be completely restored to the original state without force depends on the metal material of the elastic body.
Hysteresis occurs when the loading and unloading force curves do not match. This discrepancy is influenced by the material's composition, stability, and uniformity, as well as the radial structure post-heat treatment. By selecting appropriate metal materials and employing advanced heat treatment methods, hysteresis can be minimized, enhancing sensor performance. If the curve of the loading force and the curve of the unloading force do not coincide, the greater the difference, the greater the hysteresis. The difference mainly comes from the stability and uniformity of the material's own composition, the radial organization after heat treatment, and so on. Knowing the cause of hysteresis, we can reduce the hysteresis by selecting suitable metal materials and using advanced heat treatment methods to increase the elastic limit. After the elastomer and strain gauge are assembled, the sensor needs to be sealed with sealant, mainly to fix the line and seal, to prevent the external environment from affecting the performance of the sensor.
The sealant used to protect the sensor can affect its performance, especially in small-scale force measurements. The thickness of the sealant layer can impact the sensor's response to minor forces. Understanding the factors contributing to hysteresis allows for better material selection and manufacturing techniques to improve sensor accuracy. On the surface, the sealant is relatively soft after curing, and the strength of the relative elastomer is almost negligible. If it is used in small-scale force measurement, this effect must be considered. When a small force is applied to the elastomer, the deformation of the elastomer is very small, and the thickness of the sealant affects the deformation. If the curve of the loading force and the curve of the unloading force do not coincide, the greater the difference, the greater the hysteresis. The difference mainly comes from the stability and uniformity of the material's own composition, the radial structure after heat treatment, etc. Knowing the cause of hysteresis, we can reduce the hysteresis by selecting suitable metal materials and using advanced heat treatment methods to increase the elastic limit.
Weighing scales come in various steel structures, including L-shaped steel, U-shaped steel, channel steel, I-beam, and reinforced concrete (cement scales). Here's a comparison of the most common types:
It is the latest type of scale body connection structure, which can be said to be the fifth generation of industrial weighing instruments. Large-tonnage scales are usually composed of multiple scale bodies connected to each other. The traditional connection structure is to install several supporting members on the side plates of the scale body, weld small steel plates on the upper ends of the supporting members, and splice them into the top plate of the connection part. Under the pressure of large-tonnage vehicles, this structure will soon cause the small steel plates to bend under frequent use, causing damage to the connection between the scale bodies and affecting the overall service life of the scale.
The utility model technology provides an L-shaped scale body connection structure. It forms a connection part through the extended load-bearing beam and the integral steel plate, so that the surface of the connection part is integrated, the pressure is shared, and the load-bearing beam ensures the pressure-bearing capacity. There will be no bending in long-term use. It is suitable for use in the joint of the scale body of super-large scales.
Why choose U-shaped steel scales instead of channel steel scales? Let's talk about them one by one:
① Let's talk about the channel steel scale body first. It is based on the channel steel as the main beam, and then connected by transverse partitions, and then the bottom is covered with a cover plate. The U-shaped steel scale body is based on the principle of bridges, and is supported by U-shaped steel at the bottom. There is no cover plate or mold partition.
In comparison, for the same type of scale body, the channel steel scale body is heavier than the U-shaped steel scale body. The cost is higher than the U-shaped steel scale body. The channel steel scale body has a cover plate to play a tension role, while the U-shaped steel does not.
② From the perspective of welding, the U-shaped steel scale is fully welded, while the channel steel scale is spot welded. Therefore, the industry believes that U-shaped steel is better than channel steel. Manufacturers producing floor scales on the market mainly use U-shaped steel and channel steel, among which U-shaped steel structure floor scales have become the mainstream in the market. Floor scales in the United States, Germany, China and even the world all use U-shaped steel structures and U-shaped steel floor scales.
③ Channel steel belongs to the third generation of weighing instruments. There are two supporting beams at the bottom of the channel steel scale, and the middle is empty, so the supporting performance is worse. Simply put, the steel structure ratio is not very reasonable. The channel steel scale is equivalent to being pieced together with steel plates. But in terms of the weight of the scale body, the same tonnage channel steel is heavier than U-shaped steel, which is the truth.
U-shaped steel is the fourth generation of industrial weighing instruments. The equipment that must be equipped for making U-shaped steel scales is a bending machine. A 600T large double-machine linkage bending machine is used. The shearing machine has high positioning accuracy and fast speed. The equipment is the most advanced in the same industry in the province. If this bending machine is bought on the market, it will cost more than 600,000, so the price of U-shaped steel scales is more expensive than channel steel. The steel structure is more reasonable, with good rigidity, good strength, and strong resistance to lateral force, so the scale body is resistant to winding and has a long life. The bottom of the U-shaped steel is designed with a bridge structure.
The U-shaped steel weighing platform uses 5-7 U-shaped main beams (designed according to tonnage and table size) to ensure the overall rigidity of the weighing platform. The inner cavity of the weighing platform is fully sealed and not easy to rust. After the steel plate is treated with shot blasting and rust removal, epoxy zinc-rich primer and acrylic marine paint are used. The oil film is thick and the thickness is 100 microns. It is resistant to pressure, acid, alkali and corrosion.
Also known as steel beam, it is a long steel bar with an I-shaped cross-section. Its specifications are expressed in millimeters of waist height (h)leg width (b)waist thickness (d), such as "I 160886", which means an I-beam with a waist height of 160 mm, a leg width of 88 mm, and a waist thickness of 6 mm. The specifications of I-beams can also be expressed by model, which indicates the number of centimeters of waist height, such as I 16#. If the I-beams with the same waist height have several different leg widths and waist thicknesses, a b c should be added to the right of the model to distinguish them, such as 32a# 32b# 32c#, etc. I-beams are divided into ordinary I-beams and light I-beams. The specifications of hot-rolled ordinary I-beams are 10-63#. The specifications of hot-rolled ordinary I-beams supplied by agreement between the supply and demand parties are 12-55#. I-beams are widely used in various building structures, bridges, vehicles, brackets, machinery, etc.
Since I-beams are rarely used in the truck scale industry, domestic and foreign counterparts mainly use U-shaped steel and channel steel. Here, I will not analyze them in detail.
Composition features: The outer frame is formed by professional profiles, the interior is double reinforced, and the connection is a bolt-type with a service life of more than 20 years. For specific parameters and construction procedures, please read "Cement Scale".
In the logistics industry, companies like UPS rely on truck scales to ensure their vehicles are not overloaded, which helps in maintaining road safety and efficiency. Similarly, food processing plants often use platform scales for precise ingredient measurements, ensuring product consistency and quality.
There have been instances where companies suffered significant losses due to faulty scales. For example, a manufacturing plant that used an inaccurate scale for quality control ended up with a large batch of defective products, leading to costly recalls. This highlights the importance of investing in a high-quality scale.
Choosing the right industrial scale is about more than just finding the cheapest option or the one with the most features. It’s about selecting a scale that meets your specific needs, offers accurate and reliable performance, and stands the test of time. Whether you need a scale for weighing trucks, pallets, or small items, the quality of the scale will directly impact your operations. By considering factors such as accuracy, durability, and brand reputation, you can make an informed decision that will benefit your business in the long run.
