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 machining range: Diameter 2–13.5 mm; length 100–1,500 mm.
Customized Processing
Is
Item Number
3-200
Type
Mold Hot Runner System
Brand
Ruiying
Model
F6-1500MM
Applicable Mold Type
Rubber mold
Product Alias
Titanium-plated valve needle
Hardness
HRC59-61
Material
SKH51 High-Speed Steel
Surface Treatment
Titanium nitride

〖No Needle Jamming, No Glue Leakage〗Valve needle and valve sleeve with smooth, wear-resistant fit—featuring titanium-plated high-speed steel for enhanced durability.

Liu Dao, Special Valve Needle Guide Sleeve for Hot Runner Systems, Elbow Guide Sleeve

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