290HC Mast Section The working speed of the tower.
1. Tower hoisting speed: the maximum additional weight corresponding to each stable operating speed file, and the rising speed under stable activity during the hoisting process. The lifting speed is not only related to the lifting mechanism, but also related to the doubling rate of the hook pulley group, and the two-fold rate is twice as fast as the four-fold rate. In lifting operations, especially in the construction of high-rise buildings, the progress of the lifting speed can increase the effectiveness of the work, but it needs to be slow when in place.
2. The variable amplitude speed of the tower crane: the rated lifting weight when the weight of the tower is the maximum amplitude. When the wind speed is less than 3m/s, the speed of the car is stable.
3. Rotation speed of the tower crane: The stable rotation speed of the hook at maximum height when the tower is suspended at a maximum rated gravity moment load state and the wind speed is less than 3m/s.
4. The walking speed of the tower crane: When the wind speed of the empty load is less than 3m/s, the lifting arm is parallel to the track direction when the tower crane is stable.
