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Technical Features and Specifications
Crane wheels require a specific "Hardness Gradient" to ensure surface durability and core ductility.
| Feature | Detail |
|---|---|
| Material | 42CrMo4, 65Mn, 1045 (Medium to High Carbon Alloys). |
| Tread Hardness | 300-380 HB (or higher via induction hardening). |
| Types | Single Flange, Double Flange, or Flangeless. |
The forging process eliminates internal gas pockets, ensuring that the wheel flange won't snap off when the crane experiences "side-thrust" or misalignment on the rails. We provide wheels in "Rough Forged" or "Fully Machined" states, ready for bearing installation.
Corporate Culture and Development Philosophy
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Development Conceptscientific and technological innovation as the driving force. -
Quality PolicyPeople, integrity, truth-seeking, innovation -
Core ValueCommon development to achieve symbiosis and win-win.
Buying Tips for Material Handling
- Rail Compatibility: Ensure the wheel tread width is at least 10-15mm wider than the rail head to allow for thermal expansion and slight tracking errors.
- Hardness Match: The wheel should generally be slightly softer than the rail to prevent excessive rail wear, which is much more expensive to replace than a wheel.
- Surface Finish: A smooth tread finish reduces the rolling resistance and vibration, extending the life of the crane's motor and gearbox.
Advantages of Forged Wheels
| Advantage | Operational Benefit |
|---|---|
| Load Capacity | Carries 20-30% higher loads than cast wheels of the same size. |
| Impact Strength | Resists cracking during sudden stops or rail joint impacts. |
| Longer Service Life | Reduced downtime for wheel replacements in high-cycle ports. |
Primary Applications
| Application | Usage Context |
|---|---|
| Port Cranes | Ship-to-shore (STS) and RTG crane travel systems. |
| Steel Mills | Ladle cranes and heavy material transfer cars. |
| Mining | Stacker-reclaimers and heavy-duty ore conveyors. |
- Q: Why use 42CrMo for crane wheels?
- A: This alloy provides excellent hardenability, meaning we can achieve a deep, uniform hard layer on the tread that resists the "flat spots" caused by heavy static loads.
