Closing Recommendation
Pick the machine that fits the work you do most. The Komatsu WA500-6R has a bigger fuel tank, so it can run long, heavy shifts in mines, quarries, and big stockyards before you stop to fill fuel. The Volvo L220H is a little lighter, has strong pulling power, and turns well in tight space, so it handles loads fast and moves quickly between piles all day. Also check which brand has a service centre near you, how fast they send a man and parts, and how easy the machine is to sell later. So match the machine to your work: Komatsu WA500-6R for long, heavy shifts, Volvo L220H for fast truck loading in tight yards.