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EWIKON Heißkanalsysteme GmbH
HPS III-S valve gate nozzle Ø 12 mm

HPS III-S valve gate nozzle Ø 12 mm

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HPS III-S valve gate nozzle Ø 12 mm

Product catalog summary

Overview

This document provides comprehensive technical details on the EWIKON HPS III-NVE valve gate systems featuring 12 mm diameter valve gate nozzles with external drive units operating at 230V. It covers system variants, components, assembly instructions, drive unit options, installation types, and best practices for hotrunner injection molding applications.

1. System Variants and Components

Valve Gate Nozzles: Diameter fixed at 12 mm, available in two main installation types: standard (NV95408-V01) and front installation (NV95409-V01).
Valve Pins: Diameter standardized at 4 mm, with some stepped designs from 4.2 mm to 4 mm for compatibility.
Drive Units: External actuators including pneumatic (models 19759, 19760, 19768), hydraulic (19770), and electric with encoder (22888) options, integrated into clamping plates or manifolds.
Manifolds: EWIKON HPS III single-level manifold systems with 12 mm diameter channels.
Accessories: Insulating plates, clamping plates, nozzle retainer frame plates, pressure screws (22580, 22581), valve pin seals (22556 series), pressure pads (standard and ceramic ring types), sprue bushings (machine radius 40), locating rings (50466), heater bands (19632), connectors, and hoses tailored for temperature requirements.

2. Assembly and Installation Procedures

Valve gate nozzles are installed either in standard or front mounting styles, allowing flexibility in mold design and maintenance.
Precise alignment is ensured using locating rings and sprue bushings to fit the system into molding machines.
Valve pin seals and pressure screws are selected per specific orders by EWIKON to guarantee optimal sealing and pressure application.
Installation geometry in the gate area requires pre-machining and hardening (to 52 HRC) of contours before final machining and fitting, especially when using exchangeable inserts or screw-on gate bushes.
Locating pins facilitate easy replacement of tip inserts within the mold.

3. Drive Unit Configurations and Operating Conditions

Pneumatic Drive Units: Mounted on manifold or integrated into clamping plates; suitable for processing temperatures both below and above 250 °C. For temperatures ≥ 250 °C, ceramic ring pressure pads and high-pressure hoses with PTFE cores are mandatory.
Hydraulic Drive Units: Integrated into clamping plates with similar accessory requirements as pneumatic units.
Electric Drive Units with Encoder: Provide precise valve pin positioning and control; maximum ambient temperature limited to 70 °C.
All drive units have a maximum permissible ambient temperature of 70 °C to ensure reliable operation.

4. Key Parameters and Recommendations

Valve gate nozzle diameter is consistently 12 mm across all variants.
Valve pin diameter is standardized at 4 mm, with some stepped designs for compatibility.
Gate diameters in the valve area vary by nozzle version, typically adjustable between 1.5 mm and 4.0 mm depending on the model.
Selection of valve pin seals and pressure screws must be coordinated with EWIKON based on application requirements.
Use temperature-appropriate pressure pads and hoses to maintain system integrity and performance.
Proper assembly sequence, torque settings, and thermal management (insulating plates, heater bands) are critical for system efficiency and durability.

5. Summary Table of Key Components

Component	Description	Part Numbers / Options
Nozzle Diameter	Valve gate nozzle	Ø 12 mm (NV95408-V01 standard, NV95409-V01 front)
Valve Pin Diameter	Valve pin for nozzle	Ø 4 mm (some 4.2 mm stepped to 4 mm)
Drive Units	Types of external drives	Hydraulic (19770), Electric with encoder (22888), Pneumatic (19759, 19760, 19768)
Manifold	EWIKON HPS III manifold	12 mm diameter, single-level
Pressure Screw	Pressure application on valve pin	22580, 22581
Valve Pin Seal	Seal for valve pin	22556 series (order-specific)
Additional Accessories	Locating ring, sprue bushing, heater band	50466, 99077 series, 19632

6. Nozzle Versions and Inserts

Multiple nozzle insert versions exist for processing thermoplastic elastomers (TPE) and thermoplastic polyurethanes (TPU), featuring permanent valve pin guides with heat conducting elements.
Versions include D3, E3, F3 (with direct contour or screw-on gate bushes), and gate exchange inserts (D3V, D2V, D7V).
Valve pin lengths vary from 30 mm to 350 mm depending on installation type and control zone requirements.

7. Critical Notes and Best Practices

Maximum ambient temperature for all drive units is 70 °C.
Pneumatic drive units with ceramic ring pressure pads are mandatory for processing temperatures ≥ 250 °C.
All seals and pressure screws must be selected according to specific orders and application needs in coordination with EWIKON.
Pre-machining and hardening of gate area contours to 52 HRC before final machining is essential for durability.
Use of electric drive units with encoders is recommended for applications requiring precise valve pin positioning.
Proper installation of insulating plates and heater bands is critical for thermal management.

8. Conclusion

The EWIKON HPS III-NVE valve gate nozzle systems offer modular, versatile solutions for precise melt flow control in injection molding. With multiple drive unit options (pneumatic, hydraulic, electric), flexible installation types, and comprehensive accessory support, the system ensures reliable operation under varied processing conditions. Adherence to specified assembly procedures, temperature limits, and component selection guidelines is vital for optimal performance and longevity.

Catalog excerpts

NVI Nadelverschlussdüsen Valve gate nozzles Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit NVE Ø 12 mm Nadelverschlussdüse Valve gate nozzle Inhalt / Content Form- und Lagetoleranzen Form and location tolerances Alle Maße in diesem Katalog beziehen sich auf EWIKON Heißkanalkomponenten im aufgeheizten Betriebszustand NVE Antriebseinheiten Drive units All dimensions in this catalogue refer to EWIKON hotrunner components in heated operating condition NVE Verteilersysteme Manifold systems 39 Schraubvorkammerbuchsen Screw-on gate bushes NVE Druckstücke und Zubehör Pressure pads and accessories 3 4 - 38 Einbauhinweise Nadelverschlussdüse Ø 12 mm Assembly notes for valve gate nozzle Ø 12 mm Allgemeine Einbauhinweise General assembly notes 22 - 33 Nadelverschlussdüse Ø 12 mm Valve gate nozzle Ø 12 mm Nadelverschlussdüse Ø 12 mm Valve gate nozzle Ø 12 mm 2 - 21 Übersicht Systemvarianten für Nadelverschlussdüse Ø 12 mm Overview of system versions for valve

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HPS III-NVE - 230V Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit pneumatischen Antrieb pneumatic drive unit in Aufspannplatte in clamping plate NV95408-V01... Standardmontage NV95409-V01... Frontmontage Nadel: 0 4 mm NV95408-V01... Standard installation NV95409-V01... Front installation Drive: 19760 Pneumatic drive unit 3 Nozzle retainer frame plate 5 19760 Pneumatic drive unit 22556-... Nadeldichtung (Auswahl auftragsbezogen durch EWIKON) 7 19249 Druckstuck 0 4 mm siehe Duse (Auswahl auftragsbezogen durch EWIKON) 22556-... Valve pin seal (Selection order-related...

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NVI Nadelverschlussdüsen Valve gate nozzles Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit Valve gate nozzle Ø 12 mm Example for pneumatic drive unit in clamping plate NVE Ø 12 mm Nadelverschlussdüse Valve gate nozzle Beispiel für pneumatischen Antrieb in Aufspannplatte NVE Antriebseinheiten Drive units NVE Verteilersysteme Manifold systems NVE Druckstücke und Zubehör Pressure pads and accessories Allgemeine Einbauhinweise General assembly notes

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HPS III-NVE - 230V Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit hydraulischen Antrieb hydraulic drive unit in Aufspannplatte in clamping plate NV95408-V01... Standard installation NV95409-V01... Front installation Drive: 19770 Hydraulic drive unit 22556-... Nadeldichtung (Auswahl auftragsbezogen durch EWIKON) 7 19249 Druckstuck 0 4 mm siehe Duse (Auswahl auftragsbezogen durch EWIKON) 9 NV 95409... Nadelverschlussduse 0 12 mm (Frontmontage) 10 NV 95408-V01... Nadelverschlussduse 0 12 mm (Standardmontage) 11 99077.090-040 AngieBbuchse, 13 EWIKON Verteiler...

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HPS III-NVE - 230V Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit hydraulischen Antrieb hydraulic drive unit in Aufspannplatte in clamping plate

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HPS III-NVE - 230V Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit hydraulischen Antrieb hydraulic drive unit in Aufspannplatte in clamping plate NV95408-V01... Standardmontage NV95409-V01... Frontmontage Nadel: 0 4 mm NV95408-V01... Standard installation NV95409-V01... Front installation Drive: 19770 Hydraulic drive unit 22556-... Nadeldichtung (Auswahl auftragsbezogen durch EWIKON) 7 19249 Druckstuck 0 4 mm siehe Duse (Auswahl auftragsbezogen durch EWIKON) 9 NV 95409-V01... Nadelverschlussduse 0 12 mm (Frontmontage) 10 NV 95408... Nadelverschlussduse...

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NVI Nadelverschlussdüsen Valve gate nozzles Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit Valve gate nozzle Ø 12 mm Example for hydraulic drive unit in clamping plate NVE Ø 12 mm Nadelverschlussdüse Valve gate nozzle Beispiel für hydraulischen Antrieb in Aufspannplatte NVE Antriebseinheiten Drive units NVE Verteilersysteme Manifold systems NVE Druckstücke und Zubehör Pressure pads and accessories Allgemeine Einbauhinweise General assembly notes

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HPS III-NVE - 230V Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit Nadelverschlussduse 0 12 mm Beispiel fur elektrischen Antrieb mit Encoder in Aufspannplatte Valve gate nozzle 0 12 mm Example for electric drive unit with encoder in clamping plate NV95408-V01... Standardmontage NV95409-V01... Frontmontage Nadel: 0 4 mm Antrieb: 22888 Antriebseinheit mit Encoder NV95408-V01... Standard installation NV95409-V01... Front installation Drive: 22888 Electric drive unit with encoder 4 Nozzle retainer frame plate 6 22888 Electric drive unit with encoder 22556-......

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NVI Nadelverschlussdüsen Valve gate nozzles Nadelverschlusssysteme mit externem Antrieb Valve gate systems with external drive unit Valve gate nozzle Ø 12 mm Example for electric drive unit with encoder in clamping plate NVE Ø 12 mm Nadelverschlussdüse Valve gate nozzle Beispiel für elektrischen Antrieb mit Encoder in Aufspannplatte NVE Antriebseinheiten Drive units NVE Verteilersysteme Manifold systems NVE Druckstücke und Zubehör Pressure pads and accessories Allgemeine Einbauhinweise General assembly notes

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