TYPICAL DESIGN OF LIGHTWEIGHT MANUAL GANTRY CRANESThe gantry manual crane consists of two vertical supports with braces, between which a horizontal beam is fixed. The main supporting elements can have different configurations. For racks, mainly tubular or box-shaped structures are used, often of a telescopic type. An I-beam or a pipe of round or rectangular cross-section is installed as a load-bearing bridge. The choice of the profile of the supporting structures depends on the lifting capacity of the mobile crane and the scope of its use. It is also related to the type of lifting device used. Manual mobile cranes are very easily assembled by a team of 2-3 people within 30-45 minutes, practically without the use of special complex tools. They consist of 8 - 10 separate parts, which are easily joined and secured with clamps, bolts or special locks. |