The Natreb monoblocs are high vacuum extruders capable of perfectly generating a homogeneous and depleted mass. The designs of the Natreb Monoblocks rely on the experience of more than 40 years of engineering dedicated to the extrusion. Its system with coupled mixer and wide vacuum chamber allows the final correction of the mixture and moisture of the clay, to generate a compact and homogeneous mass, besides ensuring a differentiated vacuum in the ceramic pieces. The entire gearbox system, axles, propellers and housing were very well calculated to guarantee long life of the equipment and high productivity with differentiated quality in the final ceramic product. Natreb considers the analysis of each raw material and geometry of the final ceramic part to be processed by the extruder to do the dimensioning of the worm and the flow driver for the nozzles, always seeking the best solution for each client. It has high productivity and easy maintenance. Its structure allows the trough and the extruder body to be disassembled with agility because they are independent of the reducer, separated by coupling. Used in tubes, electrical insulators, white and red ceramic, porcelain and others.