Ewikon Heißkanalsysteme Nozzles for efficient production of long-tube shaped parts

Editor: Briggette Jaya

Germany-based Ewikon has expanded its advanced side gating solutions HPS III-MH product range with the HPS III-MHR111 nozzle.

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The nozzle has a round body that has been reduced 15% in diameter compared to the standard version.
The nozzle has a round body that has been reduced 15% in diameter compared to the standard version.
(Source: Ewikon)

Hot runner technology expert Ewikon says it has expanded its advanced side gating solutions HPS III-MH product range with the HPS III-MHR111 nozzle. This new nozzle type is specifically designed to provide efficient production of long-tube shaped parts such as syringes or pipettes for the medical industry.

According to the company, the nozzle features a round body that has been reduced 15% in diameter compared to the standard version.

Additionally, the nozzle has extended tip inserts. As such, the space available between the nozzle body and the part contour is considerably increased and can be used by the mould maker to integrate optimised cooling surrounding the cavity as well as effective mould venting. Both parameters allow a particularly efficient production, thanks to reduced cycle time and improved filling, the company notes.

The heated nozzle body is combined with a nozzle retainer, which is available in different lengths. This design allows the immersion depth of the nozzle to be varied so that very long parts can be positioned without problems. An adapter nozzle feeds the melt into the nozzle body. It sits under the manifold, passes through the nozzle retainer without touching it and ends up in the nozzle body. The mouthpiece of the adapter nozzle is pressed onto the nozzle body and seals it on the face side at operating temperatures. Ewikon claims that this guarantees a leak-proof melt transfer.

The HPS III-MHR111 nozzle is available in three versions for the simultaneous gating of two, four or eight parts. In addition to the standard tip insert, which has tip points at a 90-degree angle to the demoulding direction, a tip insert with a 60-degree angle is also available. This allows the gating point to be positioned closer to the parting line of the mould.

Like all nozzle types of the HPS III-MH nozzle range, the HPS III-MHR111 nozzle features the patented, tip exchange technology for unique maintenance ease. The company also noted that the tip inserts are easily exchangeable on the machine from the parting line, needing no dismantling from the mould.

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