With the help of a Venturi nozzle, the build up of the plastic wall thickness during rotational moulding production can be greatly influenced.
The operating principle of the Venturi nozzle can best be described by the term „air amplifier“. Supplied compressed air exits through a defined gap and produces a suction effect above the nozzle.
The venturi is attached to the clamping frame of the mould - the outlet opening points to the area on the moulds outer skin that should receive extra heat. Operated by compressed air, the venturi draws the hot air from the oven chamber and forces the increased air flow onto the directed point of the rotational mould and will accelerate the build-up of plastic in this area.(Of course, a venturi can also be used for targeted cooling of certain areas - as cold air can be sucked from the cooling chamber forcing to the target).
The Maus - Venturi nozzles are specially developed for use in rotation. Due to the adjustability it is possible to operate with different air pressure (2 - 6 bar air pressure) with approximately the same suction volume. Compared to conventional nozzles, the compressed air consumption is greatly reduced.
The stainless steel and brass construction ensures continuous operation, especially under conditions typical for the rotational moulding process. The Venturi nozzle can be completely disassembled for easy cleaning and maintenance.
