A system, method, and apparatus for fabricating, hauling, and deploying an industrial crane mat constructed from recycled windmill turbine spars.

A system, method, and apparatus for fabricating, hauling, and deploying an industrial crane mat constructed from recycled windmill turbine spars.

An interconnected outrigger pad support system is provided. The system includes a base pad assembly layer, a support layer, and an upper pad. The base pad assembly layer is formed of a plurality of base pads having alignment features that extend across at least a portion of the upper surface of the plurality of base pads. The support layer is placed on top of the base pad assembly layer and the support layer engages and is held in place by the alignment features of the plurality of base pads. In one or more arrangements, the upper pad has an upper surface and a lower surface, with the lower surface also having an alignment feature. When the upper pad is placed on top of the support layer, the alignment feature of the upper pad engages and is held in place by the support layer.

An outrigger pad holder is provided. The outrigger pad holder includes a pocket for receiving an outrigger pad and at least one connection point for attaching the outrigger pad holder to an outrigger. The outrigger pad is coupled to an outrigger, such as to an outrigger cylinder, such that the outrigger pad holder moves with the outrigger. Accordingly, when the outrigger is deployed, the outrigger pad holder is moved outwardly from the vehicle. When the outrigger is pulled in, for example overnight or during travel, the outrigger pad holder (and outrigger pad held therein) is pulled into the body of the vehicle.

A hydraulic crane comprising: —a rotatable column (7); —a crane boom system (10) comprising two or more liftable and lowerable crane booms (11, 13); and —an electronic control device (25), which is configured to prevent an execution of crane boom movements that would make the lifting moment of the crane exceed the maximum allowed lifting moment of the crane, and to continuously establish position information as to the prevailing position of the load suspension point (P) of the crane boom system. When the lifting moment of the crane has reached a limit value at a given level below the maximum allowed lifting moment, the electronic control device is configured to prevent the execution of any combination of crane boom movements that would increase the horizontal distance between the load suspension point and said vertical axis of rotation and at the same time allow the execution of any combination of crane boom movements that keeps said horizontal distance unchanged or reduces said horizontal distance.

A system and methods for stabilizer mat testing comprising a compressible material element and platen elements. Two stabilizer mats are positioned on opposing surfaces of the compressible material element and located between the platen elements. A force is supplied to the test system, i.e., a fluid supplied by a fluid supply component to the compressible material element, a load supplied by a load supply component to the compressible material element, or both. Displacement measurements from the stabilizer mat are obtained and evaluated. Stabilizer mat testing may be a standardized method used to validate design and manufacture, to test a simulated use that may occur in the field, to monitor life cycle, or to certify performance.

A system and methods for stabilizer mat testing comprising a compressible material element and platen elements. Two stabilizer mats are positioned on opposing surfaces of the compressible material element and located between the platen elements. A force is supplied to the test system, i.e., a fluid supplied by a fluid supply component to the compressible material element, a load supplied by a load supply component to the compressible material element, or both. Displacement measurements from the stabilizer mat are obtained and evaluated. Stabilizer mat testing may be a standardized method used to validate design and manufacture, to test a simulated use that may occur in the field, to monitor life cycle, or to certify performance.

Provided is an outrigger pad hoist apparatus that raises and lowers outrigger pads on a mobile crane. The outrigger pad hoist apparatus includes a frame having two arms that form an angle such that frame conforms and may be coupled to a rear end of an elevated deck of a mobile crane system. The outrigger pad hoist apparatus includes a winch mechanism, a chain, and an outrigger pad holder coupled to the chain. The outrigger pad holder moves along the frame via movement of the chain by the winch mechanism. Outrigger pads may be placed on the outrigger pad holder. The outrigger pads may be moved to a lower position for easier removal by operating the winch mechanism. Mobile cranes having the outrigger pad hoist and methods of operation and manufacture are also provided.

Provided is an outrigger pad hoist apparatus that raises and lowers outrigger pads on a mobile crane. The outrigger pad hoist apparatus includes a frame having two arms that form an angle such that frame conforms and may be coupled to a rear end of an elevated deck of a mobile crane system. The outrigger pad hoist apparatus includes a winch mechanism, a chain, and an outrigger pad holder coupled to the chain. The outrigger pad holder moves along the frame via movement of the chain by the winch mechanism. Outrigger pads may be placed on the outrigger pad holder. The outrigger pads may be moved to a lower position for easier removal by operating the winch mechanism. Mobile cranes having the outrigger pad hoist and methods of operation and manufacture are also provided.

A mobile tower for transportation to and rapid deployment at remote sites where the mobile tower can be engaged with the ground, the mobile tower including an extendable and retractable tower secured to a mobile support structure including a frame having a plurality of rapidly deployable outriggers, wherein the tower includes three series of pivotally interconnected tower sections or segments, sections or segments of which engage with segments of each of the other series when the tower is assembled; the mobile tower including a plurality of guy wires secured between the extendable and retractable tower and the respective outriggers to stabilize the tower after the tower is assembled. The guy wires are preferably secured to the extendable and retractable tower at first and second connecting positions that are displaced from one another about an outer perimeter. Methods of deploying the mobile tower are also disclosed.