For those in tension (pull), head-end mounts are preferred ... Engineers probably request custom piston-rod sizes more than any other customized hydraulic-cylinder component.

OEM engineers probably request customized piston rod sizes more frequently than any other hydraulic cylinder component ... to direct pressure to either the head or the end cap, is almost always ...

Off-the-shelf components may not fit your application though, in which case it might be handy to know how to build your own custom hydraulic ... piston and gland, this double-acting cylinder ...