Product novelty 13. August 2021

For the micro injection moulding sector, the L2X-Mikro high-performance hot runner system has been expanded to include a compact valve gate version. This is available exclusively as a 4-drop manifold module with screw-in nozzles. The valve pins are actuated synchronously via a very compact synchronous plate design. As for the open version, the hot runner nozzles are equipped with powerful direct heating and are individually controllable. This means that the system can be used not only for processing standard materials, but also without restriction for engineering plastics with narrow process windows. Depending on the material used, shot weights from 0.01 g per nozzle can be realized. The fully balanced manifold has an edge length of just 59 x 59 mm. This reduces the total flow path length and the melt volume to be exchanged in the system. This offers particular advantages when processing residence time-critical materials in applications with small shot weights.

For use on small injection moulding machines, the system is only available as complete hot half in 4-drop version. The nozzle grid is 30 x 30 mm. In order to realize higher-cavity systems with standard moulds, several of the 4-drop valve gate modules can also be used in combination with a common synchronous plate and a bridge manifold. A 16-drop system can thus be realized with a very compact mould size of 256 x 346 mm. Since the bridge manifold can be kept very simple, the general advantage of short flow path lengths remains even with such a configuration.