Qingdao Sande Technology Co., LTD
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High-Strength Hot-Forged Mining Connectors & Trailer Axle Torsion Arms
Product Overview :
We specialize in manufacturing high-strength hot-forged components for demanding mining and heavy equipment applications. Our mining connectors and trailer axle torsion arms are engineered for superior durability, impact resistance, and long service life in extreme operating conditions.
Key Features & Benefits
✔ Premium Hot-Forged Construction
Manufactured using closed-die hot forging for optimal grain structure
Enhanced mechanical properties vs. cast or machined alternatives
Material options: 4140, 4340 alloy steel, or custom grades
✔ Engineered for Extreme Conditions
Withstands heavy loads, vibration, and shock impacts
Excellent fatigue resistance for long-term reliability
Corrosion-resistant finishes available
✔ Precision Manufacturing
Tight dimensional tolerances (±0.2mm typical)
CNC-machined critical surfaces
100% quality inspected
✔ Custom OEM Solutions
Tailored designs for specific equipment requirements
Prototype to high-volume production
Complete secondary processing available
Product Specifications: Hot-Forged Mining Connectors & Trailer Axle Torsion Arms
| Category | Parameter | Specifications |
|---|---|---|
| Forging Process | Method | Closed-Die Hot Forging |
| Temperature Range | 1100°C - 1250°C (2012°F - 2282°F) | |
| Press Capacity | Up to 2500 Tons | |
| Materials | Standard Alloys | AISI 4140, 4340, 1045 Carbon Steel |
| Custom Options | Other alloy steels upon request | |
| Mechanical Properties | Tensile Strength | 850-1200 MPa (material dependent) |
| Yield Strength | 650-950 MPa | |
| Elongation | 12-18% | |
| Impact Resistance | 40-60 J (Charpy V-notch at -20°C) | |
| Dimensions | Weight Range | 2kg - 50kg |
| Max. Length | 1500mm | |
| Tolerance Standard | ISO 2768-mK (±0.2mm typical) | |
| Heat Treatment | Options | Normalizing, Quenching & Tempering |
| Hardness Range | 28-35 HRC (standard) | |
| Surface Finish | As-Forged | Ra 12.5μm |
| Machined Finish | Ra 3.2μm (standard), Ra 0.8μm (precision) | |
| Quality Assurance | Standards | ISO 9001, ASTM A788, IATF 16949 |
| Testing Methods | Ultrasonic, Magnetic Particle Inspection | |
| Production Capacity | Prototype Lead Time | 2-4 weeks |
| Mass Production | 50,000+ pieces/month |
Applications
Mining Equipment: Dragline connectors, shovel linkages
Heavy Haulage: Trailer axle systems, suspension arms
Earthmoving: Excavator pivot joints, loader components
Material Handling: Crane boom connections
Why Choose Our Forged Components?
Superior Strength-to-Weight Ratio vs. cast parts
Proven Reliability in harsh mining environments
Complete In-House Capabilities from forging to finishing
Technical Support for optimal component design
Competitive Pricing with volume discounts
Contact Us
For more information or to request a quote, please feel free to contact us. Our professional team is ready to assist you.