Lightweight portable window and roof cranes.Lightweight portable cranes - used to lift loads vertically and move them horizontally, usually over a short distance. The crane is secured in the window opening with telescopic struts and clamps. A trolley with a lifting mechanism moves along the beam. The window crane, designed for lifting loads and feeding them into the window opening during finishing work, consists of a hoist moving along a beam with limiting stops, telescopic braces and clamps that serve to secure the crane in the window opening. The roof crane is designed for vertical transportation of building materials when installing roofs on the construction of industrial and civil buildings. The crane is a collapsible frame structure with a cantilevered monorail along which a carriage with a load holder moves. The roof crane consists of two racks, a monorail, a load carriage, a winch, a counterweight and electrical equipment; installed on the roof of buildings. |
