Rotary Extruder
The Meltech-Confex Rotary Extrusion machine uses a rotating grooved steel wheel which is closed over about a quarter of its circumference by fixed sealing segments to form an extrusion chamber.
A fixed abutment penetrating into the grooved wheel blocks the groove. These segments are housed in an extrusion shoe that is restrained within the Confex machine by hydraulically actuated clamps designed to withstand the pressures of extrusion.
Metal in the form of rod enters the groove at the extrusion chamber entrance and is carried around until it impinges on the abutment. The forward motion of the wheel groove forcing the metal onto the abutment creates friction. This causes the metal to increase in temperature until it reaches a plastic state and due to the rotational pressure the product is forced through the die. This is known as ‘radial’ extrusion.
For more information on the Rotary Extruder click here.