Hot Runner Valve Pin Sleeve:

1. Materials: SKH51, SKD61, and others (custom-made available upon customer request).

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, titanium aluminum nitride coating, nitriding, and nanoscale coatings (nARo2), among others—each providing 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
RY202002003
Type
Mold Hot Runner System
Brand
Ruiying
Model
?5-200
Applicable Mold Type
Molding Die
Product Alias
Needle cover
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

〖No jamming, no glue leakage〗Smooth-fit, wear-resistant black titanium hot nozzle guide sleeve 〖Valve needle & valve sleeve〗One-year warranty

Directly sourced from the manufacturer, fully processed—high-precision, high-speed steel material for hot runner systems, including titanium-plated valve pins, valve bushings, and guide bushings.

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