The main purpose of a jack is to lift heavier loads higher; these are compatible & can be carried & fixed easily where a hydraulic cylinder cannot fit.
Jami Hydraulics is an ISO 9001:2015 certified manufacturer of general-purpose jacks designed specifically for reliable, trouble-free operation, making them ideal for heavy-duty applications & built to withstand heavy loads.
A safety factor of 2.5 or better is built into the cylinder. The safety factor is a function of the critical buckling load determined basically by the length of the cylinder and cylinder extensions. Forces: Every cylinder is individually tested before leaving our plant to assure proper and leak-free operation.