Bucket Elevators, Belt Conveyors, Material Handling .
Conveyor Engineering & Mfg. Co. Cedar Rapids, IA | 319-364-5600. We are a US based, family owned company specializing in the design and manufacturing of screw conveyors in all configurations: vertical, inclined, shaftless, live bottom, plug screws, feeders, mixers, heating/cooling, FDA/USDA approved, screw .Designed for use with Vertical Screw Blender. *Based on 60 lb. material. CrustBuster/Speed King was the first tapered screw blender which is now the standard of the industry. The secret to the Speed King Vertical Screw Blender is the large diameter tapered mixing screw.