JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED

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