The ENGEL e-motion-injection units are available in multiple basic sizes for moulding machines with small and middle range clamp forces. Depending on size there are two kinds of execution available.
In both cases, screw motor performance is transferred via toothed belts to a ball screw (2 for the twin injection unit). This concept offers the best conditions for fast, delay-free movements. The screw rotation is driven by a second servomotor. The carriage stroke is powered by an electric motor through two encapsulated spindles.
In-line-Injection unit
The injection unit for the two smallest sizes are implemented as “In-line units” with the drive for injection executed behind the screw (in a line) as the name suggests.
Compact twin injection units
For execution with larger injection volumes - and are equipped
with twin drives for injection movement. The both drive spindles
are not located behind but in parallel and next to the
screw shank.
In the injection unit conception special value was put on the combination of higher injection performance at high injection pressure.