The EVO NORDIMPIANTI extruder machine is made up of 3 main units, a universal control and power unit, a universal hopper and an interchangeable forming insert module.
Power unit
The universal power unit houses the main motors, the drive motors and the control panel. The power unit, together with the hopper can be easily and quickly transferred to another forming insert to produce a different element. Screws, together with the forming tubes, the side formers and the smoothing device (5) have an oscillating movement backwards and forwards which give excellent concrete compaction at every point along the element ensuring the element’s excellent technical characteristics. NORDIMPIANTI’s evo extruder is equipped with a compaction control system (6) that allows the operator complete control of the machine in order to reduce or increase the concrete compaction when required.
Hopper
The concrete is delivered to the machine’s hopper. The concrete then falls onto the Archimedean screws of the forming insert. The hopper has a minimum level sensor which stops the machine if there is not enough concrete. This device stops the machine in order to avoid the situation where element damage can occur if the machine is completely out of concrete. When the hopper is refilled the extruder automatically restarts.
Forming insert
The forming insert contains the special gearbox with an oil bath for the transmission components. It also contains the Archimedean screws, forming tubes, side formers, smoother device and the wire guides. The height of the hollow core slabs and the number of voids is determined by the forming insert. Different element heights can be manufactured by changing the forming inserts. The standard forming inserts produce hollow core slabs with 8, 6, 5 or 4 holes.
