Suzhou Sudelan Railway Parts Co., Ltd.
| Function | Rail End Welding Preparation |
| Surface Finish | Ra 3.2-6.3 μm |
| Standards | EN 14587, AREMA |
| Application | Thermite / Flash Butt Welding |
| Packaging Details | Wooden pallets+Woven bags |
| Bevel Angle | 30-45 Degrees |
| Feature | Precise Alignment, Heat Distribution |
| Brand Name | Sudelan |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Function | Rail End Welding Preparation | Surface Finish | Ra 3.2-6.3 μm |
| Standards | EN 14587, AREMA | Application | Thermite / Flash Butt Welding |
| Packaging Details | Wooden pallets+Woven bags | Bevel Angle | 30-45 Degrees |
| Feature | Precise Alignment, Heat Distribution | Brand Name | Sudelan |
| Certification | ISO9001 | Place of Origin | China |
| High Light | Precise Alignment Rail Weld Shoulder ，High Strength Rail Weld Shoulder | ||
A weld shoulder refers to the specially prepared rail end profile that is created for thermite welding or flash butt welding processes. It is the precisely machined or ground surface at the rail end that ensures proper alignment and fusion during the welding process.
Key Functions:
Alignment: Provides precise mating surfaces for accurate rail alignment before welding
Heat Distribution: Ensures uniform heat distribution during the welding process
Fusion Quality: Creates optimal conditions for complete metallurgical bonding
Strength: Contributes to the final weld strength and fatigue resistance
Preparation Process:
The weld shoulder is typically prepared by:
Machining: Using specialized rail end milling machines to create precise profiles
Grinding: Manual or automated grinding to achieve the required surface finish
Cleaning: Thorough cleaning to remove contaminants that could affect weld quality
Technical Specifications:
Surface Finish: Typically requires Ra 3.2-6.3 μm surface roughness
Angle: May have specific bevel angles (commonly 30-45 degrees) depending on welding method
Gap: Maintains precise gap distance between rail ends (usually 25-30mm for thermite welding)
Importance:
Proper weld shoulder preparation is critical for:
Preventing weld defects (inclusions, porosity, lack of fusion)
Ensuring consistent weld quality and mechanical properties
Meeting railway industry standards (EN 14587, AREMA standards)
Achieving long service life and reducing maintenance requirements
The quality of the weld shoulder directly impacts the integrity of the continuous welded rail (CWR) system, which is essential for modern high-speed and heavy-haul railway operations.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2011
Total Annual:
50000000-100000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Suzhou Sudelan Railway Parts Co., Ltd. is a professional manufacturer specializing in railway fastening system components. With a strong focus on quality, reliability, and technical expertise, the company is committed to providing high-performance products for railway infrastructure projects worldwi... Suzhou Sudelan Railway Parts Co., Ltd. is a professional manufacturer specializing in railway fastening system components. With a strong focus on quality, reliability, and technical expertise, the company is committed to providing high-performance products for railway infrastructure projects worldwi...
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