• Clive Henke

X+H=Mc Squared over 10!


Are you fitting an attachment to your forklift and is it man enough for the job?

How do you calculate the new, reduced, lifting capacity when the load centre is increased on a forklift truck?

On the above sketch the dimensions are as follows:

L is the dimension from the middle of the front wheel to the front face of the forks with the mast vertical. (cm)

X is the truck's load centre, (usually 50 cm)

Q is the normal rated capacity of the forklift truck in Kg.

It is important that the calculations are done from the fulcrum of the truck, i.e. the centreline of the front wheels. Therefore, we add L and X together to get to the 90-cm shown above.

Now the load of 2000 kg is multiplied by the distance of 90 cm, 2000 x 90 = 180,000 (this is in Kg/cm)

As an example, let's say the load centre is increased by 6 cm to 56 cm.

The new load centre of 56 cm needs to be added to L to get back to the drive wheel centreline, i.e. 56 + 40 cm = 96 cm.

Now the 180,000 above is divided by this dimension so:

180,000/96 = 1875. The cm cancels out and the new capacity is 1875 Kg.

Please note that the effects of the weight of attachments have been ignored for these capacity calculations but obviously may have to be considered.

Simple isn't it? but for those dummies that don't have a calculator to hand why not check out the link below -

https://www.cascorp.com/eme/en/capacity

If you need attachments for your application call Yorkshire Handling for free advice and a great selection of both new and used attachments from the leading manufacturers.

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