The Intimidator™ 18XP features the same feed system and diameter drum as the 15XP but in a larger capacity. The drum is also wider with a width of 22″ allowing this machine to process larger limbs and forked material. A large 20.55-inch high by 20.875-inch wide throat opening, 37-inch diameter drum, and Bandit’s Slide Box Feed System absolutely dominates everything else in the 18-inch chipper category. Great unit for tree services and municipalities looking for a larger capacity machine weighing under 10,000 pounds.