Manufacturer of heavy-duty industrial vacuums and vacuum systems VAC-U-MAX introduces its updated Model 1020 Continuous Duty Industrial Vacuum. The VAC-U-MAX Model 1020 features a powerful positive displacement pump designed specifically for high-volume recovery of up to 5 tons per hour. It is also used in the recovery of heavy materials, including steel shot, foundry sand, metal powders, sludges, and other materials of a similar nature. It is available in either 10 or 15 horsepower. (