JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED
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DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597<br />
2. - DESCRIPTION OF THE MACHINE <strong>AN</strong>D TECHNICAL INFORMATION<br />
2.1 Manual rotation jib cranes with articulated arm<br />
2.1.1 Intended use - Foreseen use - Designated use<br />
§ The jib cranes with articulated arm, manual rotation, “Column” version CBB series and “Wall” version<br />
MBB series, are produced to move goods within the plant.<br />
§ The jib cranes have two functions:<br />
• Lifting a load vertically, by means of the hook of the lifting block,generally made of a manual<br />
or electric chain hoist and using the appropriate accessories for such an operation;<br />
• Rotating a load around the constraint axis of the jibs, by manually pushing the load, in the<br />
circular area below, delineated by the rotation radium of the jibs.<br />
2.1.2 Constraints when installing<br />
§ The CBB column-mounted jib cranes are intended to be fixed to the ground, the column is selfsupporting<br />
and can be fixed to the ground using log bolts, on a foundation plinth or in special cases having<br />
checked suitability, also with screw anchors or dowelling.<br />
§ The MBB wall-mounted jib cranes are intended to be fixed to an existing structure (columns, walls,<br />
machine casing,etc), using a system of brackets and staybolts, either with fixing screws or, subject to a<br />
check, with screw anchors or dowelling.<br />
In both cases (column-mounted and wall-mounted cranes) the user MUST check,<br />
directly or using specialised staff, the suitability of the surfaces to be fixed on. These<br />
surfaces must guarantee the stability and safety of the crane in all its working<br />
conditions, supporting the lifting operations and the dynamic effects of the tilting<br />
momentum and of the type and speed of lifting.<br />
2.1.3 The composition of the jib cranes<br />
§ The composition of the jib crane is relatively simple, both in the column-mounted version and the wallmounted<br />
one. Both have a steel structure, the lifting block made up of a chain hoist (electric or manual),<br />
the translation unit formed by a hoist-carrying trolley (electric or push-trolley), a series of accessories (<br />
support brackets, staybolts, foundation plinth,electric unit, etc.).<br />
§ The CBB column-mounted jib crane consists of a tubular column with polygonal section fixed using log<br />
bolts or bolts at the base of appropriate size and an articulated arm which rotates round the axis of the<br />
column itself.<br />
§ The MBB wall-mounted jib crane consists of a bracket support structure which is bolted on the support<br />
structure (fixed to the wall or anchored to a column) and an articulated arm which rotates around an axis<br />
on the support bracket.<br />
§ Both versions are equipped, in most cases, with a chain hoist.<br />
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