S hydraulic cylinders come with an ISO 14540 coupler, which means you’re compatible with a large majority of other products out on the market. Don’t deal with the headache of mismatched fittings and confusing coupler specifications – have the confidence that you’re ready to thread into a TEMCo hydraulic cylinder so you can get back to your project, whether you’re a pro at work or a regular Joe. Not using a standard coupler fitting? That’s ok, we’ve included the matching opposite fitting to adapt your equipment. 4 Stroke Max Pressure 10,000 PSI. Single acting – Pressure extend, Spring return. Hard black oxide plated high carbon steel ram. Proprietary heat-treated steel shell.