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.
Material: U71Mn.
Size: QU70, QU80, QU100, QU120.
Process: no white spots on rails.
Standard: Chinese latest standard with YB/T 5055-2014.
Length: The standard length is 12m, other lengths are 9/9.5/10/10.5/11/11.5/12.5m, short rails 6~8.9m are also acceptable.
Accessories: GNEE RAIL provides a complete set of accessories for rail systems, including rail clamps with rubber noses and weldable base clips, elastomer rail pads, base soleplates, rail connection fishplates, bolts and nuts for securing the clamps, and leveling bolts.
QU70, QU80, QU100, QU120, etc. are sizes of crane rail. QU70 is a specific size of QU crane rail series according to Chinese standard. The number "70" refers to the head width of the crane rail. Thus the QU70 rail head is 70mm wide.
QU Crane Rail Dimensions
| Size | Nominal Weight Kg/m | Sectional area/cm2 | y1 cm | y2 cm | Ix Moment of inertia | Iy Moment of inertia | W1= Ix/ y1 | W2= Ix/ y2 | W3= Iy/(b2÷2) |
|---|---|---|---|---|---|---|---|---|---|
| QU70 | 52.80 | 67.30 | 5.93 | 6.07 | 1081.99 | 327.16 | 182.46 | 178.12 | 54.53 |
| QU80 | 63.69 | 81.13 | 6.43 | 6.57 | 1547.40 | 482.39 | 240.56 | 235.52 | 74.21 |
| QU100 | 88.96 | 113.32 | 7.60 | 7.40 | 2864.73 | 940.98 | 376.94 | 387.12 | 125.45 |
| QU120 | 118.10 | 150.44 | 8.43 | 8.57 | 4923.79 | 1694.83 | 584.08 | 574.54 | 199.39 |
| Dimension/mm | QU70 | QU80 | QU100 | QU120 |
|---|---|---|---|---|
| b | 70 | 80 | 100 | 118.1 |
| b1 | 76.5 | 87 | 108 | 120 |
| b2 | 120 | 130 | 150 | 129 |
| s | 28 | 32 | 38 | 170 |
| h | 120 | 130 | 150 | 44 |
| h1 | 32.5 | 35 | 40 | 170 |
| h2 | 24 | 26 | 30 | 45 |
| R | 400 | 400 | 450 | 35 |
| R1 | 23 | 26 | 30 | 500 |
| R2 | 38 | 44 | 50 | 34 |
| r | 6 | 8 | 8 | 56 |
| r1 | 6 | 6 | 8 | 8 |
| r2 | 1.5 | 1.5 | 2 | 2 |
Chemical composition & mechanical properties
| Material | C | Si | Mn | P | S | tensile strength kg/mm2(Mpa) |
|---|---|---|---|---|---|---|
| U71Mn | 0.65-0.77 | 0.15-0.35 | 1.10-1.50 | ＜0.040 | ＜0.040 | 90(880) |
Core Advantages of QU Series Rails
Exceptional Load Capacity: The large rail head and robust web structure effectively distribute and withstand the extreme point loads from crane wheels.
Extended Wear Life: Manufactured from high-carbon steel, the rail head offers high hardness and excellent wear resistance, significantly reducing replacement frequency and maintenance costs.
Superior Stability: The wide bottom design provides a stable support base which, when used with dedicated clamp plates, effectively prevents the rail from overturning or shifting laterally during operation.
Global Universality: The QU series is an internationally recognized standard for crane rails, ensuring wide availability of accessories (like clamp plates, fishplates) and system compatibility.
Why Choose GNEE RAIL for QU Series Rails?
At GNEE RAIL, we specialize in providing the most reliable rail solutions for global industrial clients.
Full Product Range: We supply the complete series of QU crane rails from QU70 to QU120, meeting all your needs from light to ultra-heavy-duty.
Professional Processing: We offer precision processing services including customized cutting, drilling, end milling, and rail bending (for curves) to ensure the rails perfectly fit your equipment's travel path.
Complete Accessories: We provide a full set of connection and fixing components perfectly matched to QU rails, including high-strength clamp plates, bolts, and fishplates, enabling convenient one-stop procurement.
Expert Support: Our team can recommend the most cost-effective rail model and installation solution based on your specific application, lifting load, and foundation conditions.
Selecting the correct rail is crucial for ensuring the safe, efficient, and long-term operation of your crane. No matter the challenges your project faces, GNEE RAIL can provide you with professional QU series rail products and technical support. Contact us immediately for detailed product catalogs and a specific quotation for your project.