The ROTOMEX gear extrusion system from TROESTER represents an extremely cost-effective solution when for example, it is used as a strainer for elastomers, as a pelletiser or a pre-warming machine for feeding calenders or moulds. Its wide-ranging applications in processing rubber compounds and its flexibility for plant point-of-use means a 30 - 40% reduction in the capital outlay for a ROTOMEX gear extruder , compared to a screw-type extruder. This new extrusion system only requires one gear pair to plasticise and homogenise the rubber compound, i. e. its mode of  action is analogous to that of a gear pump. The ROTOMEX is fed with one cold rubber strip. With the help of the feed gears, all common rubber compounds are drawn-in without problems. The gear pair then transports the material along the internal walls of the housing. The resultant friction heats and plasticises the material. An integral temperature control unit ensures that the process temperature is kept constant. A striking feature of the system is rapid compound change-over with very low material loss. Compared to screw-type extruders, the ROTOMEX enables the rubber compounds to be plasticised and homogenised at markedly lower extrudate temperatures. Advantage: the ROTOMEX can also be used to strain highly-accelerated compound and extrude pre-shaped profiles for further processing. The operating pressures ensure high throughput rates, even with the smallest mesh sizes. The gear extrusion system has an energy requirement approx. 70% below that of a comparable screw-type extruder (this represents a specific energy requirement of approx. 20-25 Wh/kg). Its simple design – comprising pump system with a D.C. motor – means the ROTOMEX requires minimal floor space.