Zhuzhou Sanxin Cemented Carbide Manufacturing Co., Ltd
| Delivery Time | 5-30days |
| Coating | without coating,TIALIN(black),TiN/TiCN/TiAlN.,TiN/TiCN/AlTiN,TICN(grey) |
| Material | Tungsten Carbide,SKD61,SKH51,copper,1.2379/1.3343/SKD11/SKH51/ |
| Surface | Machined or Blank,Polished,grinding,AS PER REQUEST,blank |
| Customized | Available,Accepted |
| Payment Terms | T/T,L/C |
| Size | customize,Drawing Provided,OEM Accepted |
| Tolerance | +/-0.002,±0.002,0.01mm,semi finished and finished carbie dies can be offered,both blank |
| Packaging Details | Customized foam + plastic box + cardboard box |
| Package | Plastic bag,paper package and carton,Blister box,Wooden Case,Standard export packing |
| Product material | Steel,Metal,tungsten carbide,SKD11,HSS |
| Grade | YG6/YG8/YG10X/YG20C,YG6X.YG8.YG11.YG15.YG20.YG16C.YG18C. YG20C.YG22C. YG25C,customized,YG3/YG6/YG8/YG11/YG15,YG6 |
| Model Number | SX1333 |
| Certification | ISO 9001:2015 |
| Brand Name | Sanxin |
| Place of Origin | China |
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Product Specification
| Delivery Time | 5-30days | Coating | without coating,TIALIN(black),TiN/TiCN/TiAlN.,TiN/TiCN/AlTiN,TICN(grey) |
| Material | Tungsten Carbide,SKD61,SKH51,copper,1.2379/1.3343/SKD11/SKH51/ | Surface | Machined or Blank,Polished,grinding,AS PER REQUEST,blank |
| Customized | Available,Accepted | Payment Terms | T/T,L/C |
| Size | customize,Drawing Provided,OEM Accepted | Tolerance | +/-0.002,±0.002,0.01mm,semi finished and finished carbie dies can be offered,both blank |
| Packaging Details | Customized foam + plastic box + cardboard box | Package | Plastic bag,paper package and carton,Blister box,Wooden Case,Standard export packing |
| Product material | Steel,Metal,tungsten carbide,SKD11,HSS | Grade | YG6/YG8/YG10X/YG20C,YG6X.YG8.YG11.YG15.YG20.YG16C.YG18C. YG20C.YG22C. YG25C,customized,YG3/YG6/YG8/YG11/YG15,YG6 |
| Model Number | SX1333 | Certification | ISO 9001:2015 |
| Brand Name | Sanxin | Place of Origin | China |
| High Light | HRA 89-92 Hardness Tungsten Carbide Needle Valve Stems ，Mirror-Polished Finish Valve Needles ，Precision Flow Control Carbide Valve Needles | ||
In precision fluid control systems, the needle valve stem—often referred to as the "valve needle" or "needle"—is the critical component that regulates flow with micron-level accuracy. Whether metering molten plastic in a hot runner injection mold, throttling high-pressure oil and gas in a wellhead choke, or precisely controlling chemical flow in a processing plant, the needle valve stem must withstand extreme conditions: abrasive media, high pressures, corrosive fluids, and millions of operating cycles.
Our Tungsten Carbide Needle Valve Stems (also known as carbide valve needles, hardmetal needle valves, or tungsten steel valve pins) are engineered to meet these demanding requirements. Manufactured from premium tungsten carbide (WC-Co) via advanced powder metallurgy, isostatic pressing, and precision diamond grinding, these components deliver exceptional hardness, wear resistance, and dimensional stability required for long-term reliability in the most challenging fluid control applications.
Unlike standard steel valve needles that wear rapidly in abrasive or high-pressure environments, tungsten carbide needles maintain their precise conical geometry over millions of cycles—ensuring consistent flow characteristics, reliable sealing, and extended service life.
In needle valve hot runner systems, the valve needle opens and closes the gate to control the flow of molten plastic into the mold cavity. The needle must withstand the abrasive effects of glass-filled and other engineering plastics while maintaining precise sealing over millions of injection cycles.
In oilfield choke manifolds, production trees, and wellhead equipment, needle-type choke valves use tungsten carbide needles and seats to control the flow of high-pressure drilling fluids, crude oil, and natural gas.
In metering valves, throttle valves, and precision flow control systems, tungsten carbide needles enable fine-tuned adjustment of fluid flow with exceptional repeatability and long-term stability.
| Parameter | Standard Capability | Custom Option |
|---|---|---|
| Material | Tungsten Carbide (WC-Co) | Multiple grades available |
| Hardness | HRA 89-92 | Grade-dependent |
| Common Grades | YG6, YG6X, YG8, YL10.1, YL10.2 | Per application requirements |
| Tip Geometry | Conical (1:50 taper or 60° cone angle) | Custom angles available |
| Tip Surface Finish | Mirror-polished (Ra ≤ 0.2μm) | Ra ≤ 0.1μm available |
| Diameter Tolerance | ±0.002mm (standard) | ± 0.001mm (high-precision) |
| Length Tolerance | ±0.05mm | ± 0.02mm |
| Concentricity | ≤0.005mm | ≤ 0.003mm |
| Surface Treatment | Polished, TiN-coated | DLC, TiAlN, or custom coatings |
| Thread Options | Custom per customer drawing | Metric, UNF, or custom threads |
| Maximum Operating Temperature | Up to 900°C | Grade-dependent |
Company Details
Business Type:
Manufacturer,Importer,Exporter,Seller,Other
Year Established:
2003
Total Annual:
8000000-10000000
Employee Number:
150~180
Ecer Certification：
Verified Supplier
Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,... Zhuzhou Sanxin Cemented Carbide Manufacturing Co.,Ltd is located in Zhuzhou, Hunan Province, which is known as the “Hometown of Cemented Carbide”. It is a national high-tech enterprise that has passed ISO9001:2015 international quality certification system, specializing in manufacturing,...
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