20T Double Girder Overhead Crane with 7.5-31.5m Span for Heavy Duty A5
European A5 double-girder overhead crane with high-performance hoist for precise speed control
Main parameters of double girder overhead crane
| Feature | European-Style A5 Double-girder Overhead Crane |
| Duty Classification | A5 (Heavy Duty/Intensive Use) |
| Structural Design | Lighter yet stronger due to optimized steel structures and precision welding. |
| Hoisting Mechanism | High-performance hoist (e.g., modular design) with faster speeds and longer service life. |
| End Carriages | Compact, low-headroom design with 42CrMo wheels for smoother travel. |
| Control System | Advanced frequency control (VFD) for precise |
| Maintenance | Reduced maintenance due to premium |
| Lifespan | Components; longer lifespan even in demanding conditions. |
| Cost | Higher initial investment but lower total cost of ownership (TCO). |
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Finite Element Analysis (FEA) and Optimized Design:
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Principle: Advanced software simulates the loads on a crane under various operating conditions, accurately calculating stress distribution. This allows designers to eliminate unnecessary material redundancy and implement targeted reinforcement in high-stress areas.
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How to Extend Service Life:
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Eliminating Stress Concentration: Optimizing the structural shape and smoothing stress transitions significantly reduces the initiation and propagation of fatigue cracks caused by stress concentration. Fatigue failure is the primary cause of failure in steel structures.
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Ensuring Sufficient Rigidity and Strength: While maintaining lightweight, ensure that the structure's deflection and vibration amplitude under rated load are strictly controlled within standard limits. Excessive deformation accelerates fatigue damage and wear.
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Using High-Strength Steel:
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Principle: Special steel with a higher yield strength (such as S690QL) is used.
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How to Extend Service Life: While carrying the same load, thinner plates can be used, while maintaining greater overall structural strength and fatigue resistance, fundamentally improving the durability of the "framework."
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Company Introduction
Hefei Kiwi Heavy Machinery Co.,ltd. is located in Feidong County, Hefei City, Anhui Province. Founded in 2010, the company is a professional manufacturer and service provider of lifting machinery, material handling and various non-standard equipment products. It is committed to the development and research of lifting machinery and logistics handling technology, inheriting advanced European design concepts and perfect process flows.
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