AZMCNC 20 Ton Hydraulic Cylinder Ram Single Acting 4 Inch Stroke 20T Hydraulic Cylinder Jack Lifting Jack Ram Portable Single Acting Lifting Cylinders with 100mm Stroke

I was skeptical on this ram but I put it to the test today. Planetary gear failed on a Hyundai loader and this bad boy saved the day. Definitely would recommend to any heavy equipment mechanic. I ordered 4 different rams from this company and I tested every one of them today and they all performed amazing. 10/10

Leaking on face of the cylinder within a short period of usage. Used for removing bearings, not a regular or heavy usage. Very cheap quality built. Waste of money.

Quite good jack, works as declared. Make sure you get extra oil to refill it before you connect the pump to it.

Purchased in 2023, and just today finally got a chance to use in the little press I have to use it in. hooked up to my hand pump, and it was <gushing> oil out all around the piston/ram/would not extend even (with no restriction on the extension, i.e. not in the press at all). Very disappointed, as I needed it to complete a project. Beyond a return, which is my fault, but won't buy another one, for sure.

The hydralic cylinder goes up and down but is leaks hydralic all over, and there was not manual to show how to trouble shoot it.

Real bad leaker, don’t waste your money going cheap. Not for heat presses, not for anyone that doesn’t want a car to fall on them.

I’m afraid I’m a little confused here! All the pictures depicting the product that I bought included a pump! I read nothing about the ram being solely what I bought! I have a pump for another cylinder, which most likely won’t work, so this is worthless to me!