Back to Products CO - Horizontal screw conveyors Previous Next Description: These machines can be used for conveying material that is fed through one or more inlets: a rotor equipped with helicoidal elements (screws or paddles) and driven at low speed propels the material inside the conveyor structure.The rotor, formed by a pipe housing the helicoidal elements and equipped with shafts on the ends, is supported and guided by end supports that mount rolling-element bearings. The rotor is equipped with intermediate supports whenever material must be conveyed more than 8 – 10 metres.Effective triple packed gland seals prevent spillage of material from the trough ends.The conveyed material slides on the bottom of the trough and on the helicoidal propelling body, which may come in the shape of a full-bladed, ribbon or paddle screw.The structure generally comes with a “U” or “V” shape and cover, or tubular shape. The latter is more cost-efficient while the former two are easier to inspect.The standard size of the screws (rotor diameter) complies with the sizes outlined in the DIN 15261 standard. The flow rate may reach 500 m3/hour for larger-sized horizontal screws. The screw conveyors are usually used for short hauls (below 20 m) although they can sometimes be used for hauling material over 50 m or more.When specially adjusted, horizontal screw conveyors may also be used to extract material from hoppers or silos. Special screw conveyors may be required to perform certain functions that include mixing, humidification and cooling, while other functions may be satisfied case-by-case through custom-made design solutions. CO Related sectors Cement works Fertilizer plants Minerals Steel works Food Power plants Chemical plants Foundry Naval ports Mortar plants Mixing plants Lime & quicklime sector Gypsum Related materials Additives Alkaline dust Ammoniac nitrate Ammonium sulphate Amorphus coal Animal meal Ashes Ashes from clinker and cement Ashes/waste incin. plant Baked gypsum (cotto) Bauxite Biomass dust Black coal Boiler ash Bran cement (crusca) Brown coal ashes Bypass dust Calcareus sand Calcium carbonate Calcium hydrate Calcium oxide Cement Cement and clinker dust Cement and lime Cement dust Cement meal Chemical product Clinker dust Coal Coal ashes Coal dust Conditioned ore - dryer dust Cooked gypsum Crushed limestone Dehydrate sludge (fanghi) Dry additives Dust Electrofilter dust Fertilizers Filler Filter dust Glass Gypsum Iron oxide Lime Limestone Marble Mineral salt Mortar premixed Naturgips Pulverized coal Quicklime Raw mill Sand Sugar Urban waste Wooden chips Zinc dust Zinc oxide Pta Headquarter Via del Brennero, 316 - 38121 Trento, Italy gambarotta@gambarotta.it Production site Via Fenadora, 99 - 32030 Fonzaso BL, Italy Tel +39 0461 920403 Fax +39 0461 933391 Company Work with us Privacy © 2021 Gambarotta Gschwendt | Advanced Conveyor Technology | P. IVA IT01716450224 Designed and Developed by Noonic Gambarotta Gschwendt is a Gambarotta Group subsidiary. Find out more about our Group. Click here for more information This site uses cookies, including third-party cookies, to offer you a better browsing experience and send you advertisements and services in line with your preferences. By closing this banner or continuing to browse by clicking outside it you consent to the use of cookies. To learn more or to change your cookie preferences, see our Cookie Policy. Accept DISCOVER MORE