System technology for WIT
Water injection in perfection
The suitable system technology for each application case.
PME cube basic / add-on
The innovative modular WIT system for 1–2 servo-pump units (combinable modules).
With the PME cube system, constructed in a modular manner, the suitable WIT system can be composed for each application with 1–2 cavities.
In the basic version, the system type includes a PME cube basic, a servo-pump unit, a controller that regulates and controls all other modules and interfaces as well as a mobile terminal with a touchscreen monitor to operate the entire system.
Each pump unit includes a high-pressure ball valve with four air-pressure valves. These are housed on an external valve cluster and are assembled as a unit on the injection moulding machine close to the tool.
The system type PME cube add-on is the expansion module for a second pump unit. This is then connected to the basic version PME cube basic, which then also assumes the regulation for the second pump unit (plug & play). An interesting factor is that the servo-pumps can be operated individually or in parallel.
This gives rise to a system that can be used for two individual mould cavities or one large mould cavity. The higher total volume flow of servo-pumps running in parallel can be used to reduce the blow-off time or to accelerate the pressure build-up in front of the injector opening in the case of an air bubble in front and a short injection time of the melt.
PME cuboid basic
The innovative modular WIT system for 1–4 servo-pump units (combinable modules).
For applications of 2–4 cavities, the PME cuboid basic offers the right solution. Up to four servo-pumps can be integrated with this modular system. Thus, for applications with several cavities, the system is more compact and easier to use than the PME cuboid basic/add-on unit system.
In addition to the servo-pump unit, the PME cuboid basic includes the controller, which regulates and controls all other modules and interfaces, as well as the mobile terminal with touchscreen for simple operation of the entire system. Each servo-pump unit includes a high-pressure ball valve with four air-pressure valves. These are housed on an external valve cluster and can thus be installed as a unit on the injection moulding machine close to the tool.