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 100–1500 mm.
Customized Processing
Is
Item Number
RY016
Type
Mold Hot Runner System
Brand
Ruiying
Model
8-300
Applicable Mold Type
Plastic mold
Product Alias
SKH51 High-Speed Steel Valve Needle
Surface Treatment
Aluminum Titanium Nitride / Titanium Nitride / Chromium Nitride / Titanium Carbonitride
Entity Processing
High-temperature heat treatment + cryogenic treatment
Material/Ingredients
High-speed steel/SKH51/SKH-9/SKD61

High-Precision Hot Runner Titanium-Coated High-Speed Steel Wear-Resistant Valve Pin (INCOE Standard)

Inner bore precision within 0.002 mm, compatible with valve needles of the same specification; includes a valve needle positioning sleeve.

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