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A Comprehensive Guide to Rated Capacity Indicators


Operation tower cranes

Rated Capacity Indicators, also known as RCIs, are designed to protect cranes from getting overloaded. They help crane operators, riggers, and directors to ensure optimum weight exertion on cranes.


In addition to different types of mobile and fixed cranes, RCIs are also used for hydraulic excavators, wheel loaders, Lorries, loaders, and bulky trucks. These tech-driven devices make crane operations safer, more efficient, and fast.


In this blog, we've discussed Rated Capacity Indicators in detail. So let's get started.


How Does an RCI Work?

RCIs are used to tell the load moment on a crane. The RCI is switched on before and during the crane operations to ensure that the machine isn't overloaded with the material. RCIs are extremely responsive in detecting crane loads in real-time. They immediately update operators about the weight status, making it easier for them to enhance crane safety.


RCIs come with audible and visual features that make indication warning more prompt and alarming in noisy working conditions.

A mobile crane attached to a truck

Why Do I Need an RCI System for Cranes?

RCIs are recommended for cranes lifting more than one ton of material weight. Their acoustic, visual warning system indicates an operator about the handling capacity. Moreover, the alarm goes off before the limit is reached to ensure that the operator gets enough time for unloading.

RCIs enable you to securely complete hefty movements without causing any hardware damage. Using our RCI and LMI manuals, you can help crane operators become pro’s at reading RCI indications and warnings. RCI's robust design is a clear example of technology granting you access to resources for making crane operations safer for employees.

In addition to the benefits mentioned above, RCI systems can also:

  • Stop the crane instantly in case of an overload

  • Show live weight values

  • Use digital controllers to customize load indications

  • Enhance crane stability and control

  • Increase a crane's useful life

What is the difference between an RCI and LMI?  

LMI systems are an older technology than RCI systems; both types are, however, equally popular. RCI systems use load sensors that indicate the load limit on cranes, whereas an LMI system uses a pressure transducer to read load values.


Whether you're looking for RaycoWylie RCI or LMI systems or any other crane safety products in the US, Crane Warning Systems Atlanta is here to help.


Our expansive range of crane safety products and parts includes ATB warning systems, crane load monitor, crane cameras, load indicators, wind Speed Indicator, and more. Check out what our esteemed clients say about us, or contact us right away for more details.

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