With the flip of a switch you can automatically lower the Helix Hi/Lo flexible screw conveyor from heights up to 12 ft (3.65 m) to an easy-to-access height. Without climbing a ladder you can thoroughly washdown the food-grade or sanitary-finish components between batches. No special tools needed. An optional mass-flow hopper can be used to encourage discharge of sluggish or non-free flowing ingredients without the need for separate in-hopper agitation. The Helix can convey at rates up to 25 ft³/min (.7 m³/min).