Spring Shutoff Nozzle
Spring shutoff nozzles use a spring-loaded needle to open and close the melt channel, preventing drooling and stringing during injection moulding. The modular design allows fast delivery with a customized adaptor size, and the simplified structure gives stable performance.
Technical data
| PARAMETER | UNIT | RS |
|---|---|---|
| Max. Shot Weight (Ref.) | gram | 5000 |
| Max. Inj. Rate (Ref.) | cm³/sec | 1500 |
| Max. Screw Size (Ref.) | mm | Φ120 |
| Body Length (L1) | mm | 112 |
| Outer Diameter (G) | mm | Φ50 |
| Band Heater Size | mm | Φ50*60L |
| Open Pressure (Ref.) | Bar | 100 |
| Close Pressure (Ref.) | Bar | 50 |
| Max. Inj. Pressure (Ref.) | Bar | 2000 |
| Max. Temperature | °C | 400 |
Engineering highlights
- Modular design with fast delivery, adaptor size customized
- Easy assembling with simplified structure with stable performance
- Prevent plastic drooling
- Prevent stringing
PRODUCT VIDEO
Frequently Asked Questions
A spring shutoff nozzle uses a spring-loaded internal mechanism to control the flow of molten plastic. It helps reduce drooling and unwanted melt leakage when the injection unit is not actively injecting.
A spring shutoff nozzle is useful when melt drooling, stringing, or uncontrolled material flow is a concern. It can be particularly helpful for materials and molding processes where clean nozzle shutoff is important.
Selection should consider the machine connection, nozzle dimensions, injection pressure, material type, melt temperature, and required flow rate. ROOTIER can manufacture nozzles according to machine and application requirements.
Yes. ROOTIER can supply standard and customized spring shutoff nozzles based on machine specifications, connection dimensions, and processing requirements.