Electric Overhead Crane

These cranes are electrically operated by a control pendant, radio, or infrared remote pendant, or from an operator cabin attached to the crane.

EOT Crane stands for Electric Overhead traveling cranes. This is the most commonly preferred EOT crane that is usually used in load lifting and shifting.

They have parallel runways and the gap is spanned by a traveling bridge. The hoist is mounted on this bridge. These cranes can be operated electrically.

What does an electric overhead crane do?

To move extremely heavy or bulky loads through the overhead space in a facility, instead of through aisles or on the floor, an electric overhead crane, also called an industrial crane, crane, or an overhead traveling crane is a machine that lifts, lowers, and moves a load horizontally.

Types of electric overhead crane

There are various types of overhead cranes with many being highly specialized, but the great majority of installations fall into one of three categories:

• Top running single girder bridge cranes
• Top running double girder bridge cranes
• Under-running single girder bridge cranes.

Single girder cranes

The crane consists of a single bridge girder supported on two end trucks. It has a trolley hoist mechanism that runs on the bottom flange of the bridge girder.

Double Girder Bridge Cranes

The crane consists of two bridge girders supported on two end trucks. The trolley runs on rails on the top of the bridge girders.

Gantry Cranes

These cranes are essentially the same as the regular overhead cranes except that the bridge for carrying the trolley or trolleys is rigidly supported on two or more legs running on fixed rails or other runways. These “legs” eliminate the supporting runway and column system and connect to end trucks which run on a rail either embedded in or laid on top of, the floor.

Monorail Crane

For some applications such as production assembly line or service line, only a trolley hoist is required. The hoisting mechanism is similar to a single girder crane with the difference that the crane doesn’t have a movable bridge and the hoisting trolley runs on a fixed girder. Monorail beams are usually I-beams (tapered beam flanges).

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