The electrical control system of the bridge crane is an electrical control product. Generally used under special working conditions, most of the installation positions vibrate greatly. During the oper[...]
The mechanism of the bridge crane is generally driven and braked by a motor, a reducer, and a brake. The motor speed is high, and the direct output torque is small, so the motor and the working mechan[...]
Plant managers and maintenance personnel need to establish a preventative maintenance program for their overhead crane based on the recommendations of the crane manufacturer. Each manufacturer has the[...]
If you have an overhead crane that has been idle for a length of time due to shutdown or storage, or you have a standby crane with infrequent or irregular usage, the crane needs to be inspected before[...]
The inspection procedure for cranes in regular service (operating at least one time per month) is divided into two general classifications based upon the intervals at which inspection occurs. The inte[...]
Many maintenance supervisors and plant managers mistakenly think that they are in compliance with inspection standards if they have their crane equipment inspected once a year. This misconception can [...]
Another type of crane electrification method involves the use of a cable reel—either spring-loaded or motor-driven—to release, retrieve, and store conductor cable for crane equipment. A reel with [...]
A festoon electrification system utilizes flat or round cable on a trolley traveling on a C track, square rail, or an I-beam. This method of overhead crane electrification provides direct contact, whi[...]
Conductor bars (also referred to as power bars, figure eight bars or hot bars) are one of the most common methods of electrifying and supplying power to a crane and hoist. A conductor bar uses a slidi[...]
Cable festoons, conductor bars, or cable reels are used to transfer power from the building supply to the crane runway and bridge crane control panel. The same components are then used to supply power[...]
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