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Crane TypeWall-Mounted Jib Crane
A jib crane fixed to the existing structure, taking up no floor space.
Advantage and limit
Its biggest advantage is saving space: with no column or foundation, the floor stays completely free. Installation is also faster than the freestanding type.
Its limit is the supporting structure. The jib load acts on the wall or column as a horizontal moment. A reinforced-concrete column is usually suitable; a brick wall, aerated concrete, or a weak steel column is not.
Pre-installation check
Before installation, the section, material and foundation connection of the supporting member are examined. On reinforced-concrete columns, the anchor type and embedment depth, and on steel columns, the connection plate and weld detail, are determined by calculation.
Installations done without this check come back as cracking and loosening within the first few months.
Comparison with the freestanding type
| Criterion | Wall-mounted | Freestanding |
|---|---|---|
| Foundation | Not required | A reinforced-concrete foundation is required |
| Floor space | None taken up | Column and foundation take up space |
| Rotation angle | Generally 180° | 180°–270° |
| Positioning | Wherever the wall/column is | Can be installed at any desired point |
| Precondition | Supporting structure must be adequate | Ground bearing capacity must be adequate |
| Installation time | Short | Foundation curing time is required |
Technical terms
| Term | What it means |
|---|---|
| Horizontal moment | The effect of the jib load trying to overturn the support. |
| Chemical anchor | An anchoring element fixed into concrete with injected resin. |
| Connection plate | A plate used to connect to a steel column, spreading the load. |
Frequently asked questions
Can it be mounted on a brick wall?
No. Infill walls can't carry this load. The connection must be made to a reinforced-concrete column or a load-bearing steel member.
Can it rotate a full 360°?
On the wall-mounted type it's limited to around 180° because the wall itself is in the way. If full rotation is needed, the freestanding or ceiling-mounted type should be considered.