A conductor bar system, cable festoon system, or cable reel are commonly used to power electric overhead cranes, often called bridge cranes. Overhead cranes are sometimes propelled manually using push or hand geared solutions, or with air power.
Conductor Bar System
A device like a festoon system, a conductor bar, or a cable reel will transmit the facility’s power source from a specialized disconnect to the bridge, permitting it to “move” or return back and forward between the entire length of the bridges for overhead cranes that are electrically powered.
Furthermore, the hoist is powered by the very same electrification system for hoisting and handling heavyweights.
All motions are controlled by an operator either with a wired pendant control or wireless remote control. Examine the availability of power, the system’s ability, and the operational environment when determining the optimal way for electrifying a crane system.
An enclosed structure of four bars (L1, L2, L3, Ground) is constructed down the runway to supply electricity. It’s affordable, simple to deploy, and the ideal option for powering lengthy or low-headroom systems. This reliable and long-lasting form of electrification can be used on a variety of crane systems and can be simply extended with special equipment as needed.
However, one downside of the conductor bar system is the necessity to change wear items such as collector shoes on a regular basis. In addition, a conductor bar system must never be employed in a dangerous site.
Cable Festoon System
Electricity is provided using a cable festoon system, which uses a framework of compact round or flat cable attached to trolleys that transport it across a track or beam. They are suitable for a wide range of applications, especially outside and high-heat conditions, and are both secure and reliable.
Cable festooning is usually available in a Simple “full featured” configuration for simple installation on kit cranes, however it is not practical for a facility having multiple runway or bridge.
Power is supplied to the overhead cranes via the crane busbar. It is divided into two sections. The slip rail (fixed component, directly attached to the power supply; whereas the long rail is coupled by a single length of 4m / root or 6m / root); the moving half (movable part, access to the power supply).
Currently, crane busbar (tube, enclosed), the unipolar pairing of crane busbar, multi-stage pipe safety crane bus bar, sturdy body crane bus bar, integrated crane bus bar, I-beam cable pulley, cable crane bus bar, and other types of crane bus bar are commonly used.
The safety measure of crane bus bar insulation has been substantially enhanced, making it safe and secure. Closed and paired conductor systems are the two most frequent types of conductor systems.
Motorized Cable Reel
Cable reels, whether motorized or mechanical spring reels are a convenient way to operate overhead cranes while also handling long lengths of cable. The reel wraps and holds the extensible cable and requires very little upkeep. It’s simple to set up and may be installed in a permanent or rotational position to support the cable to expand in multiple directions.
Cranes that are electrically or sometimes manually operated either push the load or pull a hand chain that powers a handwheel. This strategy is often utilized for lightweight cranes or servicing cranes that aren’t used very often. A hand-geared crane can lift up to 5 tonnes and has a range of between 30 feet.
When choosing a power source for your crane system, think about things like power availability and environmental safety considerations. Consult a reliable overhead crane manufacturer if you’re doubtful.
For many years, MIT Hoist has offered bridge cranes, hoists, and professional services. For more information about our made-to-order overhead cranes, electric hoists, advanced services, and engineered solutions.