Don't see a four ton, but there marked down dab deals look cool.Not good. Look at the rated pressure. 8.12 kG/CM2 = 115 psi.
More like it!
Tonnage depends on plate size. Here are some hydraulic presses to compare it to. Look at the 4 ton press.
https://www.dabpress.com/?msclkid=4...pressing rosin&utm_content=Dabpress-Searching
Bubba