How Does the Load Cell in the Crane and Hoist Weighing System Work?

The load cell is one of the main sensors commonly used in the weighing industry, and is the most common load cell used today, represent the largest and most versatile load cell group. They are used to measure pull or "pull" loads, making them ideal for crane and hoist weight monitoring. According to the deformation methods of strain gauge sensors when they are subjected to strain, they are divided into different types, including clamp sensors, the curved beam load cell and S-type load cells.

Clamping sensors (such as DLWS) are ideal for overload restrictions. Because it is directly connected to the end of the crane wire rope, which enables them to measure the load without affecting the amount of headroom that the crane operator must handle. The digital system can continuously provide relay output for the lifting sensor to activate the light, turn off the lifting operation, activate the audible alarm or any combination of the above.

Tension link load cells (such as CTL2 or DCL10) are usually installed above the hooks of cranes and are most commonly used in lifting and weighing applications. The cell of this load cell is used as a link between the shackle and the object to be measured. Especially in harsh environments, these applications are more accurate than clamp-on load cells. However, due to the addition of load cell components, it sometimes results in headroom loss. The load can either be displayed on the link itself or on a separate indicator. These systems also have wireless functions, which can improve versatility and logistics.

The shape of the S-type load cell is similar to the letter S, and its strain gauge sensor is located in the center beam of the load cell. This type of load cell is more commonly used for small and medium loads, with a capacity of up to 20,000 lbs.

This all-in-one crane scale combines the hook of the load cell and the display into one unit. However, its versatility is limited. When using the aforementioned other load cells, different types of displays and software can be freely selected, and versatility can be improved in harsh environments and underwater applications. For applications where there are no dead ends and the headroom is critical, load shackles are an excellent solution. Load shackles are used for medium to heavy applications. For load shackles, a load pin is installed in the shackle design so the load can be monitored. When using the other load cells described previously there is freedom in choosing different types of displays and software as well as increased versatility in harsh environments and underwater applications.

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