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Heavy duty lifting equipment and tire rating
Posted by Michael from Midland, MI, US on June 3, 2009
It the capacity rating on a tire meaningful when lifting vehicles with mobile column lifts. My concern is lifting a truck with twin alxles in the rear (four tires per axle) but the lifting equipment is placed under one tire on each side, so one tire is taking the load of 4 tires when lifting the vehicle for maintenance. The lifting mechanism has two angled supports that slide into the tire while on the ground, therefore there are two pressure points when lifted.
The typical load capacity that is published for tires is at highway speeds. When the vehicle is not moving, the load that can be carryed by a tires increases. So, although you should be OK, it would be a good idea to become familiar with the static load capacity of the tires on the vehicles you are lifting. You could get in touch with the Tire and Rim Association and purchase their annual yearbook that has this info. www.us-tra.org