Hot runner valve pin:

1. Material: SKH51, SKD61 (can be custom-made according to customer requirements).

2. Hardness: HRC59-61 (SKH51), HRC50-55 (SKD61).

3. Tolerance: ±0.001 mm

4. Surface treatments: Titanium nitride (TiCN) coating, chromium nitride 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

6. Precision: The precision of the effective mating area for the valve needle is within 0.002 mm, and valve needles of the same specification can be interchangeably matched with their corresponding valve sleeves.

7. Common valve needle size range for machining: Diameter 2–13.5 mm; length 100–1500 mm.
Customized Processing
Is
Item Number
6-300
Type
Plastic mold frame
Brand
Ruiying
Model
3.17-200/250/300/350/400/500
Applicable Mold Type
Rubber mold
Product Alias
Valve core
Hardness
HRC59-61
Material
SKH-9/SKH51/High-Speed Steel
Surface Treatment
Chromium Nitride/Titanium Nitride/Aluminum Titanium Nitride Coating

3–10 mm diameter, 150–1500 mm length, with precision within ±0.001 mm—thermal runner titanium-plated valve pin

None

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