How to utilize tandem lifting methods in proper modes

Tandem lift is also an operational procedure that is vastly used in the industrial sector. In this process, the operator can handle more than one crane or hoist at once to lift a huge load. Tandem operation is quite dissimilar to the other functions of an overhead crane.

The main difference is that you can utilize many different cranes or hoists simultaneously in the case of tandem operations. Apart from that, the tandem lift allows you to lift or move heavier loads than regular overhead cranes.

Anyway, using the tandem lift method properly is not at all an easy task. You have to take some necessary precautions before you start using a tandem lift for lifting heavy loads. As tandem lifts deal with heavy loads, using those in the right ways is extremely important for avoiding casualties.

In this article, we will guide you on how to utilize tandem lifting methods in proper modes.

What are the factors to check while using the tandem lifting method?

• You have to determine the centre of gravity of the load before you attempt to lift the load. As the tandem lifting method involves more than one crane, you have to attach the load properly to the cranes. You can’t lift the load in a balanced way if you can’t determine the centre of gravity of the load. Also, make sure that the centre of gravity of the load doesn’t shift while lifting or moving the load. You are likely to lift or stably move the weight to avoid facing any lifting failure. If the centre of gravity shifts while moving, the load won’t be stable and may lead to failure.
• The positions of the cranes matter while you try to lift a huge load using the tandem method. The entire tandem lifting operation has to be completed under the supervision of an expert. You must not engage inefficient workers in tandem lifting. If you don’t posit the cranes in the right positions, you will face a lifting failure.
• Sideloading is something that can be very dangerous during a tandem lift. Sideloading can be the reason for severe accidents while lifting the load. Sideloading can occur due to the improper coordination among the cranes you’re using in the tandem operation. Ensure that the cranes are in a proper sequence while you’re initiating a tandem lift.
• Before executing a tandem lift, the working team must have a well-constructed lifting plan. Tandem lifts should not be performed without proper lifting plans. Executing tandem lifts in abrupt ways can be extremely dangerous as can injure the operator seriously.
• Weight distribution is another factor that you have to keep in mind while performing tandem lifts. The weight of the load that you’re lifting should be well distributed among the cranes during a tandem lift. You can use similar cranes to lift the load in a balanced and stable way. Overloading is a disastrous issue that can be the leading reason for a lifting failure. You must check the load-taking capacity of each crane that is involved in a tandem lift. In the case of unequal distribution, you can use cranes with different load-taking capacities to make the process easier. You also have to check the movement speed of each crane before you start the operation. Cranes with different movement speeds are not favourable for a tandem lift. If the load is equally distributed among all the cranes during a tandem lift, the lift becomes easier.
• In several cases, the loads require additional riggings to get lifted. Sometimes, you need to apply separate lifting equipment for lifting the load. In such cases, equalizer beams can be a good solution to your problem. You can use equalizer beams to avoid unequal distribution of the load among the cranes. Besides the cranes, you have to know the maximum load-taking capacities of the rigging equipment and equalizers beams as well. A complete rigging detail is mandatory for a successful tandem lift.

Other important factors to consider

• Apart from the above-mentioned factors, you have to check some other factors as well. These factors also make a difference during a tandem lift.
• It would be best if you never forgot to check the required wind speed before you start the operation. The wind speed affects the load and makes it move during the lift. As you know, any movement of the load can be dangerous during the lift. That’s why checking the wind speed is mandatory for you.
• Besides that, you should also get information about the maximum hoist line speed and the maximum crane travel speed as well. These factors are also essential to check to conduct a tandem lift in a balanced way.
• If you’re an operation manager, you must determine fixed positions for the signalers. You should also train the signalers to give accurate signals so that the lift becomes accurate.
• A good and effective communication among all the persons who are associated with a lift is important. Without the coordination of all the workers, a perfect tandem lift can’t occur.

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