djb2
Well-known member
The ratchet style jacks have a welded base too.....
I claim a welded screw style stand like the Weber stand "made in germany" i posted above is stronger and better than a chinese stand with chinese welds and chinese cast steel.![]()
Usually hydraulic stuff or lifting equipment is tested up to 4 times (or so) the load capacity so a 1,5 Ton stand is tested with 6 tons, 3 ton with 12 ton etc. so I´m pretty shure and confident that they will hold up.
The welds on a ratchet style stand are holding the two halves together. They aren't seeing the full load at an angle,
And the stand bases are mostly rolled steel, which has a much more predictable strength in tension than cast parts. The upper cast section is mostly in compression, and thick enough to average out even crappy steel.
Even with great steel, a brittle or dirty weld can propagate a crack when it's loaded at an angle such as that. Not that I think any specific pair is likely to fail, it's just a riskier design when many are being made.
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