Air end lifts used to be more popularly known as air bumper jacks until auto makers stopped making bumpers strong enough to lift the front or rear of a car.
Today the jacks have pretty much left the car service world and with higher lifting capacities are becoming popular in the medium duty truck range of 2 1/2 to 10 tons. Their speed and lifting height make them quite attractive.
These are pretty straight-forward beasts, a big steel cylinder
on the outside with a piston having a large rubber seal on the
end of it for the inside along with a cast iron ratcheting safety
catch mechanism - Nothing exotic here.
They all seem to be American made with no one design superior to another but double check and stay away from any cheap Chinese/Taiwanese imports.
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