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 offering 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
RY017
Type
Mold Hot Runner System
Brand
Ruiying, Pankqi, Mismi
Model
∮8 × 1000
Applicable Mold Type
Plastic mold
Product Alias
Needle valve, guide sleeve, elbow, positioning sleeve
Surface Treatment
Aluminum Titanium Nitride / Titanium Nitride / Chromium Nitride / Titanium Carbonitride
Material/Ingredients
High-speed steel/SKH51/SKH-9/SKD61
Entity Processing
High-temperature heat treatment + cryogenic treatment

Compatible with valve sleeves of the same specifications, featuring a titanium-plated valve needle for precise sliding fit—accuracy down to 0.001 mm.

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

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