... , asphalt, chemical, mining, plastics, food, etc.Rotary feeders are ideal for pollution control applications in wood, grain, food, textile, paper, tobacco ... purged glands at choice.Bearing Arrangement : Outboard ball bearings sealed for life.Venting : ROTORBLADES :SteelHardened SteelSteel, Hard Chromium Plated or Electroless Nickel ...