Single Girder Circular Crane

A circular crane runs on a curved rail fixed atop a circular structure — a tank, clarifier, digester or silo — instead of straight runway beams, giving 360° coverage of the vessel from a fixed centre point.

We build single girder circular cranes from 1 to 20 Ton, with the girder curved to match your specific track diameter. Every unit is designed to IS:3177 / IS:4137 and FEM 1.001 duty classifications.

Yes. Structural steel gets a corrosion-resistant epoxy + PU finish and electricals are IP-rated for outdoor petrochemical and ETP exposure, with weather covers available as an option.

The bridge is anchored at a central pivot and the outer end carriage runs on a circular rail fixed to the building wall, so the crane slews continuously through 360° and the hook reaches every point inside the structure.

We need the internal diameter, the rail-level elevation and the wall or ring-beam construction. From that we return the rail loading, pivot reaction and anchor details for your civil consultant to design against.

They are built for circular structures — clarifier and digester tanks in water treatment plants, silos, blending domes, cement stores and circular machine halls where a straight runway simply cannot be installed.

A curved DSL busbar follows the circular rail, or a festoon system with a slip-ring column at the pivot. Both allow unlimited rotation in either direction without cable twisting.

Single girder circular cranes are built from 1 to 20 Ton on track diameters of 6 to 40 metres. Heavier duty or larger diameters move to our double girder circular range.