Re: Hydraulic press cylinder

Posted by rhudson on December 11, 2003 at 10:28:15 from (12.43.219.254):

In Reply to: Hydraulic press cylinder posted by Roy Suomi on December 10, 2003 at 20:52:31:

as others have said: if they are plumbed in parr. the force will be doubled and speed of extension will be cut in half. (assuming that the relief valve was not bypassing before you added the second cylinder).

usually cylinders are connected in series when you need both cylinders to expend at the same rates with unequal loads. (there are several ways to ensure this with different series setups)

as a note, in the parr. setup, just because the two cylinders are the same size does not mean that the cylinders will expend at the same time or rate. even a few pounds more force or friction on one cylinder will ensure that its twin will extend first. you will need mechanical structure to synconize the two cylinders.

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