Stainless Steel Roto Strainer / Single Drum Wastewater Screener. 4 ft. dia. x 7 ft. L, dual chain, hydraulic drive. Approximate Screen Hole Size: 3mm. Internal Screw: 9 flights at 3 in. high. Common applications include vegetables, fruits, red meats, oil/fax rendering, poultry, pork, seafood, snack foods, potatoes, etc. Solids are input into one end of the horizontal cylindrical screen, as the drum spins, water and fines exit through the screen, solids / overs exit the end of the drum opposite the infeed. Estimated weight: 3500 lbs.