As a common lifting equipment, the working principle of the jib crane is mainly to drive the pulley block and drum through the rotating turntable, so that the weight can achieve spiral movement along its radial direction, and through the rotational movement of the turntable, the upper The dynamic load moves in a straight line along the fixed load track below, thereby moving the weight from one end to the container at the other end. This kind of crane has the characteristics of making full use of space height, reducing floor space, realizing multi-directional operations and rapid transfer.

1. Characteristics of rigid cranes

While a direct reference to "rigid crane" may be a broad or context-specific expression, here we can understand it to mean a crane with rigid structural characteristics, such as a crane using rigid rails or rigid connectors. For a 250kg crane, the rigid structure may include rigid connections between I-beams and profile rails, which help provide stable support and precise movement control.

2. Application of manual cantilever crane

1. Application areas

Industrial manufacturing: In factories, manual cantilever cranes can be used to lift raw materials, semi-finished products, finished products, etc. to improve production efficiency. Especially in industries such as automobile manufacturing, machinery manufacturing, electronic appliances, etc., manual cantilever cranes can easily lift heavy parts, machines and other items, and support processes such as processing, assembly and maintenance.

Building construction: In the construction of high-rise buildings, manual cantilever cranes can be used to hoist building materials, equipment, etc., reducing the labor intensity of workers and improving construction efficiency.

Logistics and warehousing: In the field of logistics and warehousing, manual cantilever cranes can be used to load and unload goods stacked at high places to avoid damage from falling goods and ensure the safety and efficiency of logistics operations.