Product Details
This series is a core heavy welding component for engineering lifting machinery, adopting high-strength low-alloy steel with excellent fatigue resistance, focusing on stress balance, load-bearing performance and service life. We conduct finite element analysis on product structure, optimizing welding sequence and stress distribution to avoid stress concentration.
Adopting high-standard full-penetration robotic welding + manual precision welding, welds have high strength and consistent quality, matching the strength of base metal and resisting repeated bending and vibration during machinery operation. Post-weld overall stress relief treatment and precision shaping ensure no deformation, no cracking and stable size under long-term cyclic load.
Each product undergoes strict load test and fatigue test, meeting the operation standards of heavy engineering machinery. We support customized production of various booms, arms and connecting rod components, with stable quality and high safety, perfectly matching engineering machinery assembly requirements.
Core Specifications
| Material | High-strength alloy steel, fatigue-resistant structural steel |
| Plate Thickness | 10mm - 90mm |
| Processing Technology | CNC thick-plate cutting, robotic heavy welding, stress relief, load testing |
| Welding Standard | AWS D1.1, ISO 3834-2 |
| Performance | Fatigue resistance, anti-deformation, high load-bearing |
| Test | Cyclic load test, fatigue test, dimensional inspection |
Key Advantages
1. High-strength fatigue-resistant steel, super bearing capacity of mechanical arms & booms
2. Optimized structural welding, balanced stress, anti-cyclic fatigue fracture
3. Robotic + manual composite welding, stable weld quality, high consistency
4. Post-weld stress relief, no deformation under long-term operation
5. Strict load & fatigue testing, high safety, suitable for heavy engineering machinery
Application Industries
- Excavator boom & arm welding components
- Loader lifting arm weldments
- Engineering crane heavy structural parts
- Lifting machinery connecting & moving weldments
Certifications
ISO 9001:2015, ISO 3834-2, AWS D1.1
Product Keywords
Heavy machinery arm welding parts, engineering boom weldments, high-strength machinery components, fatigue-resistant heavy weldments, excavator welding parts, heavy lifting machinery components
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