Concrete Pole Machine, Concrete Pipe Making Machine, Button Head Machine Factory The bridge crane is a hoisting equipment to hoist materials across over the workshop, warehouse and stock ground. 1. Product Introduction of Bridge Crane The bridge crane is a hoisting equipment to hoist materials across over the workshop, warehouse and stock ground. The bridge shape results from its two ends sitting on the high concrete pillars or metal holders. The crane span structure moves longitudinally on the rails laying on the elevated holder of two sides facilitating the full use of the space below the span structure to hoist the materials without the block of ground equipments. It's one of the most widespread used and largest hoisting equipment.