We had electric fork lifts with rotator clamps for paper rolls at the newspaper. A full roll weighs around 2000#, is 4' in diameter, by about 5' long. They'd set one on end. Then pick up a 2nd, rotate it and stack it on top of the 1st. Then they'd make another stack of 2. Finally, they'd pick the bottom roll of the 2nd stack and lift the 2 up on top of the other 2. So a 4000# lift to get them stacked 4 high. Then they'd stack a final 5th roll on top. They could to hundreds of rolls in a shift. We always had two clamp trucks. One charging and one working
Eventually, though, they traded them all out for propane powered units that they leased. The batteries were just too expensive to replace.