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Can Load Sway be avoided

December 22, 2023

Can Load Sway be avoided ? Yes, Learn HOW

What is Load Sway:

In a typical crane or hoist, the load is suspended from the crane through a flexible member either by a wire rope or a chain. Whenever the cross travel or the long travel motion happens or stops the load due to its inertia, starts to swing. This swinging action of Load is called LOAD SWAY. The more the height of the wire rope the more the LOAD swing LOAD SWAY is always a huge problem for the crane operator specially when precise positioning of the load is required. Till few years back and even today (in some cranes) the positioning of the load and impact of Load Sway was considered to be operator skill. Few operators also used plugging operation to control the load sway. Eventually Load Sway hampers productivity and also has safety hazards.

How can Load Sway Be reduced

Load Sway can be minimized with the use of VVVF Drives or soft starters. VVVF Drives drives have feature of controlled acceleration and deceleration, hence the sudden increase of speed from 0 to designed (or vice versa) is achieved in a controlled manner, thereby reducing the Load Sway.

Further Advancements

VVVF Drive manufacturers have now come up with special Drives incorporating ANTI SWAY Feature. In this feature the VVVF Drive senses the sway happening and controls the speeds so that the SWAY is practically zero. Watch video of how anti sway mechanism works

Benefits of ANTI Sway

Productivity improvement : the cycle time reduces as the operator is not now worried about swinging of the load. This results in faster and better work.
Safety : enhanced safety is observed with this, accidents or collision of people, equipments, machinery is avoided.
Accurate positioning : the positioning capability of the operator is increased along with safe handling.

Load Sway can be detrimental to the workers working around the crane and also to the machinery and equipments around. Further the Load sway also degradesthe performance of the CRANE. It is must that you should use VVVF Drive. In case you have existing cranes we can do the retrofitting of the panels to incorporate VVVF Drive in the same.

Inspiration

December 22, 2023 Manufacture

Can Load Sway be avoided

Can Load Sway be avoided

What is Load Sway:

How can Load Sway Be reduced

Further Advancements

Benefits of ANTI Sway

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