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This Video of a Hydraulic Press Testing the Limits of Jack Stands Is Mesmerizing

Road & Track logo Road & Track 9/29/2020 Brian Silvestro
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Jack stands are almost always rated from the factory for a certain weight limit. The ones you find at your average auto parts store usually come in two-, four-, or six-ton varieties. But how much weight can your average jack stand really hold? The folks over at the Hydraulic Press Channel on YouTube found out.

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Using a 150-ton hydraulic press, the channel decided to test out the weight limit of two styles of jack stand, as well as a standard scissor jack, like the one you'd normally find as part of the spare tire kit in your car. The result? Jack stands can hold a lot more weight than their manufacturers suggest.

Without a safety pin in place, the two-ton-rated four-leg jack stand is able to withstand 12,300 pounds (just over six tons) of force before slowly collapsing. With the pin secured in its appropriate position, that number grows to 18,600 pounds, or 9.3 tons. That eight new Miatas worth of force.

The tube-style jack stand, which was rated for roughly three tons from the factory, fairs even better. It's able to withstand 27,500 pounds (nearly 14 tons) before buckling to the hydraulic press's force.

Of course, just because these stands can be subjected to such high amounts of force, doesn't mean they should be. These tests were conducted in ideal conditions, with static forces acting on the stands using smooth, flat surfaces. Those factory ratings are there to make sure you never get close to the stand's actual limits, so we highly recommend following them. So long as your jack stand is in good condition (we're looking at you, recalled Harbor Freight stands), you shouldn't have an issue.

It's amazing how many tons your average jack stand can actually hold. These two styles of jack stands were able to hold much more than what they're rated for. © Hydraulic Press Channel - YouTube It's amazing how many tons your average jack stand can actually hold. These two styles of jack stands were able to hold much more than what they're rated for.

Oh, and that scissor jack? Rated for around 3300 pounds, collapsed after just 9200 pounds of force from the press. We wouldn't recommend using one unless you absolutely have to.

via The Drive

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