Hot runner valve pin:

1. Material: SKH51, SKD61, and others (materials can be specified).

2. Hardness: HRC59-61 (SKH51), HRC52-55 (SKD61).

3. Tolerance: 0.001 mm (shaft diameter), 0.001 mm (bore)

4. Surface treatments: Titanium nitride (TiCN) coating, chromium nitride (CrN) coating, hard chrome plating, aluminum titanium nitride coating, nitriding, and nanoscale coatings (nARo2), among others—each achieving a surface hardness of HV2400 or higher (coatings available upon customer request).

5. Concentricity: 0.002mm–0.005mm

6. Precision: The precision of the effective mating area of the valve needle is within 0.001 mm, and valve needles of the same specification can be interchangeably matched with their corresponding valve sleeves.

7. Common valve needle size machining range: Diameter ø2–ø10 mm; length 150–1500 mm.
Brand
Ruiying
Product Alias
Titanium-plated valve needle
Type
Mold Hot Runner System
Applicable Mold Type
Plastic mold
Item Number
6-400
Surface Treatment
Titanium-plated
Entity Processing
Deep-cold treatment and high-temperature heat treatment

Machining diameter 3–10 mm, length 150–1500 mm, precision 0.001 mm – hot runner valve pin, valve pin sleeve, and guide bushing

〖No Needle Jamming, No Glue Leakage〗 Valve Needle & Sleeve with Precise Fit, Titanium-Plated, Wear-Resistant High-Speed Steel—Manufacturer of Hot Runner Systems

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