The progenitor  range of the D nozzles has been completely renovated to meet the continual demands of the customers, who need more flexibility  and easier application in mould hot runner systems.
The nozzle tip assembly, which was integrated into the old nozzle body, is now screwed into the core. Besides facilitating maintenance operations  on the open moulding machine, there is also an economic saving on spare parts.

Types  1B, with a lengthened tip, are the most frequently used for internal injection in particularly critical points, such as elongated caps and containers, or where it is necessary  to keep the heated part of the nozzle as far away as possible from the part surface, to avoid marks and unsightly appearance.
This type of tip adapts very easily to applications  with many cavities and fast cycles that are especially appropriate for the packaging sector,  moulding of caps and small items.

The new concept of type 3B is particularly interesting, with lengthened  gate system tip, suitable for the injection of parts where appearance is important, and for sequential checking. It is possible to obtain optimal regulation of the plastic material flow  in special applications, such as  tubs and thin-walled containers, that cannot be injected externally due to the presence of the label.
Furthermore, the gate system nozzles leave a very clean injection point, that besides being almost unseen, is free of imperfections and residual material that could pollute the product contained in the tub. It is therefore most appropriate for applications in the foodstuffs packaging sector.

The needle  centring system on gate system types 3B has been perfected, the needle centres itself in the tip of the nozzle ensuring perfect concentricity  with the mould seat where the needle closes.
All the tip types are constructed with a special sintered steel , which has an optimal thermal conduction, and makes them much more resistant and not subject to wear, therefore they are suitable for the injection of all types of thermoplastic materials.

Also, the diameter of the channel inside the nozzle core has been increased, to improve the flow rate and for easier injection of large size parts.
For easier application in moulds with many cavities it has been decided to increase the thickness of the D nozzle heads, to have more space for the outlet cables and as a consequence be able to increase the number of hot half  injection points obtainable with D nozzles.
To complete the versions offered by the range, we have added the new diameter  18, available in types 1, 1B and 3B.

The  standard lengths available have been tripled and they now reach  206 mm for diameters 18, 22 and 30, and  266 mm for diameter 44.