Hello,

I have a very old 20R30TN forklift... single lift extension machine ( 130" of lift... cylinder is about 3" inside diameter x 65" lift, 72 inch total length).

I am trying to find out the operation / maximum pressure of the hydraulic system.

A 3" cylinder which works out to about 7 sq inches of area.

The actual cylinder lifts "double" the listed weight (each chain lifts the full 3000 lbs but the pivot point lifts double this).

I figure give 1000 lbs for the mast / forks... makes a total lift weight of 7000 lbs.

This equates to a pressure of 1000 lbs!!!!!

This just does not seem correct to me. I keep thinking it should be at least double this.

Can someone set me straight!

Thanks.... Mike