We are one of the largest and most professional crane manufacturers in China, with total sales of more than 1.6 billion US dollars last year, including sales of 11,000 sets of double-beam and gantry cranes, more than 73,000 sets of single-beam cranes, and more than 100,000 sets of electric hoist and accessories.
We have an advanced, green, whole-industry chain, intelligent manufacturing industrial park, with an investment of 370 million US dollars and more than 4,700 employees, which has been established for more than 20 years.
I really hope to have the opportunity to cooperate with you.
We welcome you to visit our company.
There will be opportunities to cooperate on some large-scale international projects, which will be mutually beneficial for both of us.
QD Type Hook Bridge Crane mainly consists of bidge, trolley travelling mechanism, crab and electrical appliances, and is divided into 2 working grade of A5 and A6 according to the use frequency. This crane operation is completed in driver's chamber.
The working principle of the dual-motor fast and slow speed electric hoist is to achieve different lifting speeds through the coordinated operation of two motors. Specifically, the dual-motor group consists of a main lifting motor and a slow lifting motor. When the main lifting motor is working, the slow lifting motor is not powered and is in a braking state, and the electric hoist operates at a fast speed; when the slow lifting motor is working, it drives the conical rotor of the main lifting motor to rotate through a slow drive device, and the electric hoist operates at a slow speed.
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Structural composition
The main structure of a double-speed electric hoist includes key components such as the motor, brake, reducer, and drum. The motor provides power, the brake ensures safe shutdown, the reducer regulates speed and torque, and the drum performs the lifting function.
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Types and Application Scenarios
Double-speed electric hoists are divided into mechanical double-speed and variable-frequency double-speed types. Mechanical double-speed electric hoists achieve fast and slow speed switching through a dual-motor assembly, suitable for scenarios requiring both fast and slow operations. Variable-frequency double-speed electric hoists control motor speed by changing the power frequency through a frequency converter, making them ideal for environments that demand precise speed control and reduced vibration.
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