The 2.5D automatic tank cleaner from Hammelmann Corp. removes deposits, including hardened materials from tank internal walls, at pressures up to 23,150 psi and flows exceeding 200 gpm for efficient cleaning in long vessels and towers. The swing angle of the nozzle holder is adjustable to 35 or 83 degrees. The swing angle of the tank-cleaning unit around its axis is optionally set at 36 or 81 degrees. It operates using high-pressure water, rotating the nozzle arms due to the reaction force of the water jets emitting from the nozzles. This motion is transferred via a built-in drive and reduction gear, which in turn rotates the cleaner around its vertical axis. By rotating in two axes, the water jets can reach all parts of the tank interior. The rotation speed is controlled by an adjustable induction brake magnet. 800/783-4935; www.hammelmann.com.