Manitowoc Crane Group France

Olivier Gevaudant

Fabrice Thomas

Vincent Veillerot

Simon Grimaud

Yves Alloin

Jean-Paul Verchere

Eric Millet

Poerio Betti

Sylvain Cuillerier

A self-erecting crane including a mast mounted on a rotating platform and supporting a boom is configurable between a transport configuration and a working configuration. The mast supports a hitch element suitable for being coupled on a fifth wheel provided on a rear platform of a tractor truck, the hitch element being located in a front hitch area of the mast which is dimensioned to come above the rear platform. The self-erecting crane also includes a mooring system located on the front hitch area and a removable ballasting element. In the transport configuration, the removable ballasting element is configured to be temporarily moored on the mast by the mooring system so that the removable ballasting element is located under the mast in the front hitch area. In the working configuration, the removable ballasting element is mounted on the rotating platform.

Self-erecting crane comprising a removable ballasting element for a transport on a fifth wheel

A tower crane configured to fold and unfold between a working configuration and a transport configuration includes a boom hinged in rotation relative to a mast about a main axis of rotation. The tower crane includes a rear retainer fastened to a frame supporting the mast and to a stanchion. The stanchion extends the boom rearwardly of the main axis of rotation and is displaceable relative to the boom between a working position and a transport position. The tower crane further includes a lifting cable connected to a winding device exerting, on the lifting cable, a tension force applied on stanchion by a return system configured to cooperate with the lifting cable, so as to cause displacement of said stanchion from the working position to the transport position.

Tower crane with automatic folding and unfolding stanchion

This automatic unfolding and folding tower crane comprises a mast and a jib which are movable between an operation configuration and a transport configuration. The mast has a first mast section () and a second mast section (). The jib has a first jib section () and a second () jib section. The first jib section () has an upper limit () and a lower limit () defining a height (H) of the first jib section (). The first mast section () is rotatably connected to the first jib section () about a hinge axis (Y). The jib direction (X) is shifted with respect to the mast direction (Z) parallel to the hinge axis (Y). A distance between the hinge axis (Y) and the lower limit () is greater than 75% of the height (H) of the first jib section ().

Automatic unfolding and folding tower crane comprising a mast and a jib shifted with respect to the mast

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Marcy l'Etoile, France

Olivier Gevaudant