We are offering screw machines.Screw conveyor is also called auger, is the general equipment for the chemical enterprise.using the helical blade push the materials move by the trough.itissuitableforconveyingpowder, granulatedandsmalllumpmaterials, suchascement, coal, grain, chemicalfertilizer, ash, sand, coke, etc.the screw conveyor can transport bulk materials in level, small dip angle, or vertically.it can be equipped fixed or movable type.The helical blade is the mainly parts of the conveyor, materials are moving by the vane rotation, during the moving, materials are getting mixed and at the same time the vane has been friction, so that it has a big power consumption.the screwconveyors transmission wire is commonly 20-40mh, no more than 100mh, the normally transport length is 50m, no more than 70m, and 10m in the vertical.thelsscrewconveyorsworkingenvironmenttemperatureisusually-2050degree.Model:lx273-9lx219-9lx219-6suitable for:concrete batching plant which are used for medium sized construction site, railway construction, prefabricated factory, etc.Hebei double stars concrete batching stations special-use screw conveyor adopts spiral special-purpose motor, made by international steels, used by all kinds of commercial concrete batching plant.it mainly linked with cement silocement tank, and double horizontal-axis forced mixer.transport the cement exactly under the computer control and measurement control system.we can design for any kinds of concrete batching plant with the feature of durable and high efficiency.