Overview

This document provides comprehensive technical specifications, configuration guidelines, and application recommendations for the Series 22 E02 manifold nozzles with screw fit, designed for hot runner systems in injection molding. The nozzles feature a 22 mm flow bore diameter and support various tip shapes and gating types to accommodate different thermoplastic materials and processing conditions.

1. Product Specifications

• Nozzle Size: 22 mm flow bore diameter.
• Style: Manifold nozzle with screw fit and staged design featuring a slim front area.
• Heating: External heating with 230 V AC, 2 to 3 heating zones, Fe/CuNi thermocouple (DIN 43710), power ranging from 815 W to 1760 W depending on length and type.
• Application Range: Suitable for all common thermoplastics with maximum shot weights up to 3500 g for open nozzles and 1500 g for valve gate nozzles.

2. Nozzle Tip Types and Gating Options

• Open (N): Standard open gating for general applications.
• Open with Torpedo (T): Designed for materials with narrow to wide process windows, tip shape dependent.
• Valve Gate (V): Provides precise gating control, ideal for low viscosity materials.

Tip shapes (e.g., Y, U, P, K, L, S, W) correspond to specific gating types and process windows, with detailed dimensional and cooling requirements.

3. Dimensional Data and Tolerances

• Key dimensions include nozzle length (L), sub-lengths (L1, L2), diameters, tip diameter, and hot runner gate diameter.
• Tolerances conform to DIN ISO 2768-mK standards for dimensional, shape, and position accuracy.
• Mold plate cut-outs for nozzle body and connections vary by tip type (through bore or blind bore).
• Cooling is mandatory around and opposite the nozzle tip to maintain thermal stability.

4. Heating Zones and Power Ratings

• Heating zones are numbered from the nozzle tip to the nozzle head.
• Power per zone ranges from approximately 315 W to 630 W, with total power between 815 W and 1760 W depending on nozzle length and type.
• Power selection within specified ranges allows precise temperature control tailored to application needs.

5. Application Guidelines and Best Practices

• The nozzle tip front must always be positioned directly against the plastic to ensure proper gating.
• Cooling must be applied around the nozzle tip and on the opposite side to prevent overheating and maintain process stability.
• Selection of nozzle tip shape and gating type should be based on the material’s viscosity and processing window.
• Consult Synventive’s Hot Runner Guide and technical support for detailed design and application-specific advice.

6. Nozzle Configuration Process

• Step 1: Specify nozzle series, type, and length code precisely using provided charts and drawings.
• Step 2: Select variables such as heater zone power and tip shape based on application requirements.
• Ensure adherence to dimensional tolerances and cooling requirements during installation.

7. Nomenclature and Revision Notes

Users must be aware of nomenclature differences between older and newer nozzle series to ensure correct identification and specification of nozzles.

8. Summary of Key Parameters

9. Contact and Support

Regional contact details are provided for technical support across multiple countries, facilitating efficient resolution of application-specific queries.

Conclusion

The Series 22 E02 manifold nozzles offer versatile configurations with screw-fit tips, multiple gating options, and precise heating control suitable for a broad range of thermoplastic injection molding applications. Strict adherence to dimensional tolerances, cooling requirements, and proper nozzle tip positioning is critical for optimal performance. Users are encouraged to consult Synventive’s detailed guides and technical support for tailored application solutions.