Flexicon, Bethlehem, Pa., released a sanitary flexible screw conveyor that can be tilted down and rolled to serve multiple functions.
Using a manual jack screw, the support boom and conveyor can be raised for discharging into vessels or other process equipment. Fully lowered, it can be rolled through doorways as low as 7 feet in height, and aisles as narrow as 42 inches.
Sanitary features include a caster-mounted frame, support boom and hopper grate constructed of 316 stainless steel, sanitary quick-release clean out cap, quick-disconnect discharge box access cover, stainless control panel with stainless conduit and liquid-tight compression fittings, allowing washdown during changeovers and/or conveying of corrosive materials.
HMI controls allow manual and automatic start/stop and speed adjustment.
How it works is, material flows through the hopper into an adapter that charges the conveyor. As the flexible screw rotates in the material, it self-centers within the tube, providing ample clearance between the screw and the tube wall to eliminate or minimize grinding. The flexible screw is top-driven beyond the point at which material exits the conveyor, preventing contact with bearings or seals. The conveyor transports bulk materials from sub-micron powders to large pellets, while the gentle rolling action of material prevents the separation of blends. The rugged inner screw is the only moving part contacting material, resulting in reduced maintenance and increased reliability.
The conveyor frame can be finished to sanitary of industrial standards, or constructed of carbon steel with durable industrial coatings.