Hot Runner Valve Pin:

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, 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
6-300
Type
Mold Hot Runner System
Brand
Ruiying
Model
4-200
Applicable Mold Type
Rubber mold
Product Alias
Titanium-plated valve needle
Entity Processing
Cryogenic Treatment & High-Temperature Heat Treatment
Material
High-speed steel SKH51/SKH-9
Surface Treatment
Titanium-TiCN-coated Titanium Nitride-TiN

A valve needle and core with a chromium nitride-black titanium coating, offering higher concentricity and roundness precision than coiled designs.

Manufacturers produce valve pins / hot runner valve pins / high-speed steel 1 valve pins / Master valve pins / Liudao valve pins with excellent wear resistance.

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