Crane Which is good | Shandong St. onwards (certified) | Cranes

 Cranes (crane) run institutions generally only four active and driven wheels, if the weight of a large light and small cranes, common way to increase the wheel from the wheel to reduce pressure. When more than four wheels, must be balanced hinge frame means, so that the crane load is evenly distributed on each wheel. Bridge metal structure from the main beam and side beams composed of crane parts, divided into single-girder bridge and double girder bridge types. Single girder bridge by a single span girders and located on both sides of the end beam composed by two double girder bridge girders and beams end components. Girder beams rigidly connected with the end, both ends of the end beam is equipped with wheels to run on an elevated bridge support. Main beam welded rail crane for lifting the car running. Bridge girder structure types are more typical box-shaped structure, four truss structure and fasting truss structure. Box-shaped structure can be divided into double track box girder, double girder box off-track, off-track single box girder several. Double-track box girder is a basic form of the widely used, the main beam by vertical webs on both sides of the lower flange plates and composition, trolley rail flange plates arranged on the center line, simple structure, easy to manufacture, suitable for mass production, but the larger self. Lifting motor and metallurgical VVVF motor squirrel cage rotor motors. It combines the traditional advantages of lifting metallurgical motors and variable frequency motor on the merits, not only to meet the frequency of the motor starting, braking, overload, need to reverse, speeding, shock and vibration in the workplace, but also to meet the operational control downconverter The need for a crane price, soft start, four-quadrant operation, so as to minimize the impact on the equipment, and energy conservation. Crane Which is good | Shandong St. onwards (certified) | crane provided by the Shandong Heavy Machinery Co., St. onwards. Heavy Machinery Co., Ltd. Shandong St. onwards (www.sdsqzxjx.net) is Tai'an, industrial products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shandong St. leadership with the staff warmly welcome all inquiries negotiations to create Shandong St. played a better future.