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Lifting Capacity 200~ 500 ton Double Girder Gantry Crane With Hook
An overhead crane, commonly called a bridge crane, is a type of crane found in industrial environments. An overhead crane consists of parallel runways with a traveling bridge spanning the gap. A hoist, the lifting component of a crane, travels along the bridge. If the bridge is rigidly supported on two or more legs running on a fixed rail at ground level, the crane is called a gantry crane or a goliath crane.
Unlike mobile or construction cranes, overhead cranes are typically used for either manufacturing or maintenance applications, where efficiency or downtime are critical factors.
Overhead cranes are commonly used in the refinement of steel and other metals such as copper and aluminium. At every step of the manufacturing process, until it leaves a factory as a finished product, metal is handled by an overhead crane.
Raw materials are poured into a furnace by crane, hot metal is then rolled to specific thickness and tempered or annealed, and then stored by an overhead crane for cooling, the finished coils are lifted and loaded onto trucks and trains by overhead crane, and the fabricator or stamper uses an overhead crane to handle the steel in his factory. The automobile industry uses overhead cranes to handle raw materials. Smaller workstation cranes, such as jib cranes or gantry cranes, handle lighter loads in a work area, such as CNC mill or saw.
Almost all paper mills use bridge cranes for regular maintenance needing removal of heavy press rolls and other equipment. The bridge cranes are used in the initial construction of paper machines because they make it easier to install the heavy cast iron paper drying drums and other massive equipment, some weighing as much as 70 tons.
In many instances the cost of a bridge crane can be largely offset with savings from not renting mobile cranes in the construction of a facility that uses a lot of heavy process equipment.
It consists of four main parts, namely, the bridge structure , the travelling mechanism, the trolley and the electric equipment. The bridge is welded structure of box type, individual drives are adopted for travelling mechanism on each end of the crane.
All movements of the crane are controlled from the cabin. Either rigid shapes of the steel (angles or tees) or flexible insulated cable shall be selected to be utilized as runway conductors and proposed in . the order by the purchaser. Max. and Min. value of the environment temperature, the sort of power supply, the voltage and other data shall be proposed by user when filling the order form.
Application:
Available for general service, such as loading, unloading,lifting and transferring work in outdoor storage or railways.
Sketch And Technical Parameter:
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