A load cell, also called a force transducer, is a weighing device that is capable of measuring applied forces. It’s a device that you’ll often see being used in universal testing machines, industrial scales, and even platform scales.
It’s a great investment to make in case your business is in line with any of these industries.
Finding a load cell isn’t particularly hard considering there are many you can buy online. However, what’s complex is choosing a load cell that fits exactly what you need.
Like weighing scales, there are various types of load cells to choose from and each of them has specific applications and unique requirements. If you’re on the lookout for a load cell sometime soon, here’s a quick guide that will help you find the right one.
1. Understand The Load Cell Types and Shapes
Before you even think about buying a load cell, it’s vital that you understand the different types of load cells. This can help you narrow down your choices easily. The most common load cell types are as follows:
● Strain Gauge Load Cell – A load cell that’s known for its durability. Best purchased if you plan to use the load cell regularly. It also has good resonance values making it one of the most versatile load cells right now.
● Piezoelectric Load Cell – In this load cell, the voltage output is created using a piezoelectric material. This process allows the load cell to measure the unit. This type of load cell is best used for dynamic measurements of force.
● Hydraulic Load Cell – Best used in hazardous environments because it can operate even without electrical parts. It’s one of the most affordable load cells and it’s also easy to operate.
● Pneumatic Load Cell – Used in applications where small units are measured. An advantage of a pneumatic load cell is that it is explosion-proof and not prone to drastic effects caused by temperature changes.
Apart from the types of load cells, you should also consider the shapes. They determine which type of application the load cell is best used for. Here’s a glance at each of the shapes.
● S-Beam Load Cells – used for applications that involve tension.
● Beal Load Cells – used for status, silo, tank and hopper weighing.
● Canister Load Cell – used for high capacity weighing and to measure objects that weigh over 50 tons.
● Pancake Load Cell – used when high precision weighing is required.
● Button Load Cell – used for weighing objects that are in confined and narrow settings.
● Thru-Hole Load Cell – used for getting precise measurements in off-centre applications.
2. Capacity Requirements
One of the most crucial aspects of choosing a load cell is understanding the minimum and maximum weight requirement for its application. . If you want precise measurements, then the load cell’s capacity should be taken into account.
According to Meltrons, the best way around this is to go for a load cell that exceeds your highest operating load. That way, you can be more versatile when it comes to what you can measure. Don’t forget that weight minimums are important as well,
Lastly, when picking a load cell based on capacity requirements, make sure to consider possible variances like nonlinearity and bridge resistance.
3. Operating Environment
Understanding the operating environment is valuable for picking a load cell as well. It’s not just to make sure that the load cell is going to work properly but to make sure the safety of its users as well.
For instance, if you’re hoping to use a load cell inside a setting that contains highly flammable or hazardous materials, then you shouldn’t get a load cell that operates on electricity. This can be very dangerous for those working around the load cell.
Factors such as area temperature and humidity are all important to take into account as well.
4. Brand
This might seem like a trivial matter but keep in mind that with branding comes quality. Investing in a tried and tested brand is always a good choice. When it comes to load cells, a well-known brand could mean that the load cell is durable and versatile for most applications.
Don’t simply rely on the maker of the load cell to check its quality. Look online and check out reviews as well.
If you’re still having trouble choosing, a good solution would be to talk with the pros and have them refer the load cell that fits your needs. This way you can be sure that you’re getting something that can last for a long time.
Picking a load cell might seem simple enough but once you see the number of load cells to choose from, the choice becomes more complex. With this guide, however, finding that perfect load cell will be a lot easier.
