The invention relates to a loading device, wherein the loading device comprises a gantry (6) and a platform (5) which is mounted on the gantry (6). A pylon (1) is arranged at a base point (7) on the platform (5). A jib extends out from the pylon (1). The pylon (1) can be rotatably connected to the platform (5). The platform (5) defines a vertical axis (8) which extends in the vertical direction and runs through the base point (7). The pylon (1) is curved in a region adjoining the platform (5) and intersects the vertical axis (8) at an angle (a). The invention further comprises a pylon (1) for a loading device.

The invention relates to a loading device, wherein the loading device comprises a gantry (6) and a platform (5) which is mounted on the gantry (6). A pylon (1) is arranged at a base point (7) on the platform (5). A jib extends out from the pylon (1). The pylon (1) can be rotatably connected to the platform (5). The platform (5) defines a vertical axis (8) which extends in the vertical direction and runs through the base point (7). The pylon (1) is curved in a region adjoining the platform (5) and intersects the vertical axis (8) at an angle (a). The invention further comprises a pylon (1) for a loading device.

A system for lifting heavy loads, that includes an apparatus having at least one mast or part of such mast, from which a load may be suspended and a removable erection facility external of the apparatus and disposed on a base on the ground, which erection facility includes an assembly frame having a push-up and lowering capability for the at least one mast or part of such mast, which erection facility is equipped to receive during erection of the apparatus or to remove during dismantling of the apparatus, a mast piece or a series of mast pieces below an assembly of mast pieces above said mast piece or series of mast pieces for converting the apparatus between a dismantled position and a fully erected position, at least that portion of the erection facility having the push-up and lowering capability being removable away from the apparatus and base after erection of the apparatus.

A crane or mobile crane includes a crane base, a crane jib to be slewed relative to the base about a slewing axis vertically oriented in normal operating state. A counterweight carrier coupled to the crane jib slews therewith and carries counterweight modules in normal operating state. An anti-collision sensor system monitors the presence of an object within a slewing range ahead being passed through by the counterweight carrier and/or counterweight modules in the future during normal operation as the crane jib slews. A control unit linked to the anti-collision sensor system for signal transmission is configured to determine, based on sensor signals transmitted by the anti-collision sensor system, whether an object is present in the slewing range ahead, to determine whether the object can lead to a collision with the counterweight carrier or one counterweight module, and to take a countermeasure upon a collision.

The invention relates to a tower crane, preferably a rotary tower crane, particularly preferably a top-slewing crane, comprising a jib and a counter-jib. The jib and/or counter-jib is hinged to the tower top and/or rotating platform by means of at least one connection point. A first connection part of the at least one connection point has a concave stop surface, and a second connection part of the connection point comprises a convex counter-stop surface, wherein the counter-stop surface of the second connection part acts on the stop surface of the first connection part by means of a pressure force in order to produce a force-fitting connection between the connection parts.

The invention relates to a tower crane, preferably a rotary tower crane, particularly preferably a top-slewing crane, comprising a jib and a counter-jib. The jib and/or counter-jib is hinged to the tower top and/or rotating platform by means of at least one connection point. A first connection part of the at least one connection point has a concave stop surface, and a second connection part of the connection point comprises a convex counter-stop surface, wherein the counter-stop surface of the second connection part acts on the stop surface of the first connection part by means of a pressure force in order to produce a force-fitting connection between the connection parts.

The disclosure relates to a mobile crane, such as a crawler crane, comprising an undercarriage having a chassis, a superstructure rotatably supported on the undercarriage, and superstructure ballast, with the superstructure ballast comprising a ballast mounting apparatus vertically adjustable by means of a lifting device of the superstructure. In accordance with the disclosure, the ballast mounting apparatus is fastenable to the superstructure in an assembly position by means of a single connection element bearing the vertical load of the superstructure ballast. A centering means is furthermore provided that is adapted to take up transverse forces occurring in the assembly position.

The disclosure relates to a mobile crane, such as a crawler crane, comprising an undercarriage having a chassis, a superstructure rotatably supported on the undercarriage, and superstructure ballast, with the superstructure ballast comprising a ballast mounting apparatus vertically adjustable by means of a lifting device of the superstructure. In accordance with the disclosure, the ballast mounting apparatus is fastenable to the superstructure in an assembly position by means of a single connection element bearing the vertical load of the superstructure ballast. A centering means is furthermore provided that is adapted to take up transverse forces occurring in the assembly position.

A mobile crane, such as a crawler crane, including an undercarriage having a chassis and a superstructure rotatably supported on the undercarriage and having a pivotable boom. At least two platforms are permanently arranged at the superstructure via which the superstructure is walkable. The platforms each comprise a base and a railing that are movable from a transport position in which they contact the superstructure into a work position in which the bases are walkable and are secured by the railings, and vice versa.

The focus of the present disclosure is on portable cranes and cantilevered base systems. In particular, portable cranes and cantilevered base systems which are lightweight, easy-to-operate, safe, inexpensive, and have extended reaches with high-load capacities would be advantageous for a variety of applications. A cantilevered support to a pivotable arm that is provided by the present disclosure provides advantages when compared to other portable cranes, such as the ability to: 1) extend an arm and reach of a crane, 2) increase a load that can be lifted or lowered, 3) operate a portable crane and cantilevered base system freestanding without attaching a base to a floor, surface, or bed of a vehicle, and 4) augment the structural capacity of a portable crane and cantilevered base with mechanical devices to support a variety of applications.