For automation, machinery, or serious DIY projects, this is a hefty pneumatic cylinder.
It has a large 100mm (about 4 inch) bore and a long 500mm (about 20 inch) stroke.

It's a double-acting cylinder (air moves it both in and out) with a single piston rod.

Ports are PT 1/2 thread.
It features adjustable cushions on both ends to soften the impact at the end of the stroke, making it run smoother and quieter.

It has self-lubricating bearings, so it doesn't require external oiling.
Max working pressure is 1.0 MPa (about 145 psi).
This is an industrial-grade component suitable for pushing, pulling, or lifting in manufacturing, packaging, or custom machine builds.

Make sure you have the proper air supply and valves to control it.
A solid, powerful actuator for the right application.
