QU70, QU80, QU100, QU120, etc. are sizes of crane rail. QU80 is a specific size of QU crane rail series according to Chinese standard. The number "80" refers to the head width of the crane rail. Thus the QU80 rail head is 80mm wide.
Crane rail is a special kind of rail track providing a running surface for various types of cranes such as gantry cranes, overhead cranes. QU crane rails are mainly applied in big projects including wharf, ports and yards. The sizes of crane rail needed are decided by the wheel of cranes. For the safe operation of cranes, there is a certain distance between the rail surface and crane wheel rim. Therefore, it doesn't mean the larger width of the rail head is better. Suitable crane rail size is recommended for clients to fit the specific model of crane.
This QU80 rail is made of high-quality U71Mn steel, with a rail height of 145mm, base width of 140mm, web thickness of 18mm, head width of 80mm, and weighs 63.69kg/m, with lengths customizable per client requirements. Advanced heat treatment ensures excellent wear resistance, fatigue strength, and long-term stability under frequent heavy crane operations.
Drawing of U71Mn QU80 Crane Rail
| Size | Rail Height(mm) A |
Base Width(mm) B |
Head Width(mm) C |
Web Thickness(mm) t |
Weight(kg/m) |
|---|---|---|---|---|---|
| QU70 | 120 | 120 | 70 | 28 | 52.80 |
| QU80 | 130 | 130 | 80 | 32 | 63.69 |
| QU100 | 150 | 150 | 100 | 38 | 88.96 |
| QU120 | 170 | 170 | 120 | 44 | 118.10 |
| U71Mn | Mechanical property | Chemical Composition(%) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yield Strength |
Tensile Strength |
Elongation | Hardness | C | Si | Mn | S | P | Cr | Ni | Cu | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HB | ≤ | ≤ | ≤ | ≤ | ≤ | ||||
| ≥880 | 9% | 0.65-0.76 | 0.15-0.35 | 1.10-1.40 | 0.030 | 0.030 | 0.025 | 0.025 | 0.025 | |||||
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In order to better serve the different needs of customers, our technical team is available to provide advice and support, helping every customer to optimize their rail selections to minimize life cycle costs. We supply suitable rail parts, like fish plates, rail clips, bolts, and nuts. We supply rail processing, like 45-degree mitre cut, welding process, milling process, special profile processing, etc. Our engineer helps customer to design railroad line according to requirements, and build mining railroad line and crane moving line. The technical support provided by GNEE RAIL can ensure that every rail we deliver provides optimum performance throughout its service life.
