TU Screw Feeders are manufactured in carbon steel with a suitable surface finishing. They are made up from a tubular trough that is equipped with at least one inlet and one outlet spout, a welded flange at each tube end, helicoid screw flighting welded on a centre pipe with a coupling bush at each end, two end bearing assemblies complete with self-adjusting shaft sealing unit. Furthermore, TU Tubular Screw Feeders are equipped with a gear motor that suits the application.
Function
TU Tubular Screw Feeders are highly versatile and offer a variety of standard solutions for handling powdery materials. Depending on the characteristics of the material, different feeder models are available in asphalt plants for handling filler dust or additives.
Application
To inject a mixture of cold and hot filler from the filler weigh hopper into the twin shaft mixer, the TU-type Screw Feeder should be installed next to or in front of the mixer. It has to feed the mixer quickly and homogeneously with filler to guarantee a high quality of the asphalt.
Benefits
    Modular design offers a great variety of options suitable for numerous applications;
    Durable under extreme conditions;
    High feeding accuracy;
    Vast range of options and accessories;
    Attractive price.
Technical features/Performance
    Outside tube Ø: from 168 mm to 323 mm
    High speed of emptying
    Absence of intermediate bearings
    Direct M-type drive
    Greased seals for hot/cold filler dust

One of the ingredients of asphalt, is filler. Asphalt is a mixture of fine filler materials in a multi-cyclone and filter bags of combustion gases, isolated and added to asphalt production systems. It should be mentioned filler to optimize consumption, supply shortages and correct gradation of materials such as cement, hydrated lime and stone powder used.