Load Cell Applications of Overhead Cranes


Crane load monitoring systems are critical to the safe and efficient operation of overhead cranes. These systems employ load cells, which are devices that measure the weight of a load and are mounted at various points on the crane, such as the hoist or hook set. By providing real-time data on load weight, load monitoring systems help prevent accidents by allowing operators to avoid overloading the crane. Additionally, these systems optimize crane performance by providing load distribution information, allowing operators to balance loads and reduce stress on crane components. Load cells use a Wheatstone bridge (a circuit developed by Charles Wheatstone) to accurately measure weight. Load measuring pins are a common sensor found in many overhead crane applications and consist of a hollow shaft pin with an internally inserted strain gauge.

These pins deflect as the weight of the load changes, changing the resistance of the wire. The microprocessor then converts this change into a weight value in tons, pounds or kilograms. Modern crane load monitoring systems often employ advanced technologies such as wireless communications and telemetry. This allows them to transmit load data to a central monitoring system, providing operators with real-time load information and enabling remote monitoring and control. A multi-point calibration method is also used to ensure the accuracy of the crane throughout its capabilities. Improper installation is a common cause of overhead crane load cell failure, often caused by a lack of understanding. It is important to realize that the load cell (often called the "load pin") is usually part of the shaft on the wire rope hoist that supports the pulley or pulley. Load measuring pins are often used to replace existing axles or axles within a structure as they provide a convenient and compact location for load sensing without the need to modify the mechanical structure being monitored.

These load pins can be used in a variety of crane applications, including above and below hooks, in hook groups, rope dead ends, and wired or wireless telemetry. Labirinth specializes in load testing and load monitoring solutions for a variety of industries, including overhead crane applications. Our load monitoring systems utilize load cells to measure the weight of the lifted load, ensuring the crane is operating safely and efficiently. Labirinth offers load monitoring systems that can be installed at different locations on overhead cranes depending on accuracy and requirements. These systems can be equipped with wired or wireless telemetry capabilities, allowing for remote monitoring and control. By using Labirinth bags during the calibration process, a multi-point calibration approach is used to account for any non-linearities in the load cells, wire ropes or crane support structures. This ensures the accuracy of the monitoring system throughout the crane's entire lifting range, providing operators with reliable load information.

Post time: Nov-17-2023