That assumption is incorrect because the components (End Trucks and Hoist with trolleys) can be of exactly the same duty and be configured into a single girder design or a double girder design. Many people mistakenly think that a double girder crane is heavier duty than a single girder or that they will last longer. Single girder crane beam chart advantages 6 September 1991, Specification For Electric Traveling Cranes For Steel Mill Service EDOC0002 methodology is based on:(a)ASTM A6/A6M, Standard Specification for General Requirements for Rolled Steel Plates, Shapes, Sheet Piling, and Bars for Structural Use.(b)CMAA Specification #74, Revised 2010, Specifications for Top Running & Under Running Single Girder Electric Traveling Cranes Utilizing Under Running Trolley Hoist.(c)AISE Technical Report No. Flexible ball and socket connections between the crane girder and end carriages enable single-girder cranes to operate on tracts that are not parallel.īeam Sizing and Calculation method:The bridge beams are designed and selected based on the calculation method outlined in Harrington’s internal use only document EDOC0002, “Single Girder Bridge Beam Chart”. The benefits of KBK classic single-girder suspension cranes include latching devices that allow direct transfer of the hoist trolley between the crane and a suspension monorail. Single girder crane beam chart Single girder crane beam chart introduction
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