APRO
Rotary Type Billet Cranes
Deflection in the double or single girder bridge constructions used in the standard production or special process rotary type cranes is calculated at least 1/1000 ratio. It is produced in the most strong and lightweight way using designs and advanced production technologies in accordance with DIN norms and FEM standarts.
Lifting and handling, travelling gearboxs is produced in parallel shaft type by choosing suitable service factor gearbox according to the FEM class. Lifting movements is stopped by electro-hydraulic brake with safety factor suitable to DIN norms and FEM standards. Emergency stop safety brakes can be used according to the tonnage and requirements.
Inverter drives is used in the main lift, auxiliary lift, trolley and bridge end truck travelling and rotating systems in order to provide non-impact movement and least load swinging. Rotation angle can be expended to 360 degrees in the rotating type cranes according the requirements.
Radio frequency remote controls or control from the cabin options is available in the rotating type cranes. I beam cable carrier current receiver is prefered as current receiver festoon line throughout the bridge.
There are a maintenance platform suitable to standards at one girder of the bridge in order to provide safe maintenance of special production rotary type billet crane.
There are switches that cut the current before it hits the buffers at the runway beam end of the bridge travelling. If there are more than one travelling bridge cranes at the same hall, censor switch is used in order to prevent them to collide with each other.