Hydraulic drives are able to generate high forces and move large loads. With the help of proportional
valves, it is possible to control movements fast and accurately.
Depending on the application, a linear cylinder, a rotary cylinder or a rotary mo
tor are used. Linear
cylinders are most frequently used. The following designs are therefore confined to this type of drive. We
compare among various types of cylinders which are common by used. We compared different conditions
for cylinders with friction and without it.
