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07-11-2017

Reinforced Hot Runner Nozzle Range

New Family of Hot Runner Solutions for Multi-Cavity Molds

At this year's Moulding Expo in Stuttgart, Germany, Italian hot runner specialist HRSflow, San Polo di Piave, presented a new family of hot runner solutions for multi-cavity molds. The multicavity series is suitable for the large-scale production of injection molded products wherever short cycle times and high surface quality are specified, for example in medical applications, cosmetic articles, caps and closures, and packaging.

The new hot runner nozzles of the Reinforced range has been specifically developed for the thin-wall injection molding of packaging and the production of thick-walled parts (© HRSflow)

The new hot runner nozzles of the Reinforced range has been specifically developed for the thin-wall injection molding of packaging and the production of thick-walled parts (© HRSflow)

The hot runner nozzles of the Reinforced range are designed for high injection pressures and are suitable for thin and thick-walled applications. Furthermore, they are noted for the very high wear resistance of the nozzle tips. They are available in three specifications: Reinforced-T, Reinforced-M and Reinforced-S.

  • Reinforced-T has been developed specifically for the injection molding of thin-walled articles. These nozzles are also suitable for decorative injection molding using the IML process (in-mold labelling). Because of their shape and homogenous temperature profile, very high injection speeds and thus short cycle times are possible. This prevents overheating and thus damage or discoloration of the IML label and therefore ensures high process stability.
  • The Reinforced-M nozzle is ideal for processing polyesters into thick-walled parts with a high-gloss surface, e.g. cosmetic packs, household articles or products for medical technology. Here, wall thicknesses of 20 mm and more can be produced without problem.
  • The Reinforced-S nozzle has also been developed for thick-walled injection molded parts with a wall thickness of up to 20 mm. This nozzle has been designed specifically for the injection molding of Surlyn, a highly transparent packaging material from DuPont.

Cover cap for spirits: Molded in PP filled with Fe2O3 and then partially metallized (© HRSflow)

A recent application example for the new hot runner nozzles of the Reinforced range is a cover cap for spirits, molded in PP filled with Fe2O3 and then partially metallized. Because the material is very abrasive due to the filler, the nozzle tip needed to have high wear resistance. The molded part has a wall thickness of up to 8 mm at the gating point and weighs 19 g. It must have neither sink marks nor flow lines nor any mat or shiny areas so as to ensure a uniform, high-quality surface after metallization.

Company profile

HRSflow

via Piave 4
IT 31020 San Polo di Piave
Tel.: +39 0422 750-111
Fax: +39 0422 750-301

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