Quote Originally Posted by Frank S View Post
Tuomas, the height of the beam has little to do with the size of the base or column that supports it.
it is the load center distance from the mounting or pivot point the farther the cantilevered distance is the stronger the pivot and base must be unless there is an equal counter weight opposite of the load
For a free standing jib crane the anchorage to the ground becomes the most important consideration second is the slenderness ratio of the column for a given height.
If you were to tell me the max weight you need to lift how high and how far from the column or base the load needs to be raised I can tell you what you would need to accomplish your task.
another thought is if you only need something temporary you could possibly utilize a gin pole type crane with a counter weight.
A lot of people who only need to lift say half a ton or less to a height of 2 or 3 meters have modified mechanics shop engine hoists by turning the beam around and adding weights to the hoist base this allows the lifting device to remain mobile while the base is out of the way of their work
Yep. You're right. I did some further planning, and it doesn't make sense at the end. Sturdy rising beam would make structure too complicated.

I think, that in my case. Jib crane, with a support wheels in the other end could be best option.