Plastic Injection Molding Internal Spring Shut-off Self-Closing Nozzle

• Customization: Available
• Standard: DIN, GB, JIS, ANSI
• Technics: Machining
• Feature: Recycle
• Material: Tool Steel
• Warranty: 1 Year
• Open Pressure: 280bar
• Close Pressure: 100bar
• Max. Inj. Pressure: 2500bar
• Control Unit: Spring
• Max. Temp.: 400°
• Transport Package: Wooden Case
• Specification: RS-I / II / III
• Trademark: ROOTIER
• Origin: Ningbo
• HS Code: 84779000
• Production Capacity: 200 Sets/Month

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Parameters Concerned

PARAMETER			RS-I		RS-II
Max. Shot Weight (Ref.)		gram	1000		5000
Max. Screw Size (Ref.)		mm	70		120
Body Length (L1)		mm	123		135
Hexagon (S/W)		mm	50		60
Heater Size (G)		mm	Φ47x60L		Φ60x80L
Open Pressure (Ref.)		Bar	280
Close Pressure (Ref.)		Bar	100
Max. Inj. Pressure (Ref.)		Bar	2500
Max. Temperature		°C	380
REQUIRED MEASUREMENT
C	D	E	H	L2	F	R

Internal spring controlled shut-off nozzle mainly serves to solve the leakage of low density thermoplastic injection process, like PA, PP, PS, PE, which can improve production efficiency and save production cost, and it's used lot in low-frequency injection process.

The needle is drove by internal spring and keep shutting automatically, during injection process, the injection pressure force the needle back to open the channel and ensure proper injection, after injection ends, pressure drops and needle will again lockup by spring and prevent material from leaking out of nozzle.

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