Product Overview
GB QU120 Steel Rail for Crane is a heavy-duty crane rail with the QU120 profile, used for crane runway systems in ports, steel plants, shipyards and other industrial facilities requiring a specified rail section for heavy-duty crane operation.
Specifications
|
Parameter |
Specification |
|
Rail Type |
Crane Rail |
|
Rail Profile |
QU120 |
|
Nominal Mass |
118.1 kg/m |
|
Rail Height |
170 mm |
|
Head Width |
120 mm |
|
Base Width |
170 mm |
|
Web Thickness |
44 mm |
|
Steel Grade |
U71Mn / U75V* |
|
Standard Length |
12 m* |
|
Surface |
As-rolled* |
*Final steel grade, applicable standard, rail length and surface requirements are confirmed according to the purchase specification.
Main Components
|
Component |
Main Options / Specifications |
Function |
|
Rail Fishplates |
Q235B steel / Hot-dip galvanized / QU-series matching |
Join adjacent rail sections and maintain the rail connection |
|
Rail Clamps |
WJK type / Forged 45# steel / Welded or bolted type / Anti-corrosion coating |
Secure the rail to the supporting structure |
|
High-Strength Bolts |
Grade 8.8 / 10.9 / Dacromet coating |
Fasten fishplates, clamps and other rail components |
|
Rubber Rail Pads |
Natural rubber or NBR / 60–70 HA / 5, 8 or 10 mm thickness |
Installed beneath the rail to provide an interface between the rail and support |
|
Rail Pressure Plates |
QT400-18 ductile iron / Galvanized / QU-series matching |
Hold the rail base against the supporting structure |
Product Features
High Load-Bearing Capacity
Uniform hot-rolling temperature control and grain refinement improve structural consistency and toughness for high wheel loads and repeated impact.
Increased Wheel Contact Area
A thickened rail head provides a larger wheel-contact area for more even wheel pressure distribution.
Reduced Base Stress Concentration
A widened rail base increases the bearing area and distributes load more evenly across the supporting structure.
Applications
Port & Container Handling
Crane runway systems for gantry cranes, container handling equipment and heavy material-handling facilities.
Steel & Metallurgical Plants
Crane tracks serving ladle cranes, charging cranes, casting areas and other heavy material-handling equipment.
Shipyards
Heavy crane runways used for ship assembly, fabrication, steel plate handling and large-component lifting.
Heavy Manufacturing Facilities
Crane tracks inside machinery plants, fabrication workshops and large industrial buildings where high-capacity overhead cranes operate.
Industrial Yards
Outdoor crane runways in logistics yards, prefabrication facilities and large-scale component handling areas.
Customization Options
|
Customization Item |
Available Options |
|
Rail Length |
12 m / Custom cut length |
|
End Cutting |
Standard square cut / Specified cut length |
|
Rail Drilling |
Bolt holes / Custom hole diameter / Custom hole spacing |
|
End Processing |
Plain end / Beveled end / Drawing-defined configuration |
|
Surface Requirement |
As-rolled / Purchase-specification requirement |
|
Rail Marking |
Rail size / Steel grade / Heat or batch number / Customer marking |
Documents & Shipment
QU120 crane rails are supplied according to the specified rail standard and steel grade, with quality documents available for project verification.
Quality Documents: Material Test Certificate, Chemical Composition Report, Mechanical Test Report, Dimensional Inspection Record
Packaging: Steel-strapped bundles with rail model, grade and batch identification
Loading: 20GP / 40GP containers, bulk shipment or mixed loading
Export Documents: Commercial Invoice, Packing List and Certificate of Origin
Supply Information
|
Item |
Supply Information |
|
Product |
GB QU120 Crane Rail |
|
Rail Profile |
QU120 |
|
Steel Grade |
U71Mn / U75V* |
|
Standard Length |
12 m or specified length |
|
Processing |
Cutting / End Drilling / End Processing |
|
Matching Components |
Fishplates / Rail Clamps / Bolts / Rail Pads |
|
Trade Terms |
EXW / FOB / CIF |
|
Lead Time |
Confirmed after quantity, steel grade and processing requirements are reviewed |
FAQ
Q: Does QU120 mean the rail weighs 120 kg/m?
A: No. QU120 identifies the rail profile, not its nominal mass. The specified nominal mass of the QU120 section listed on this page is 118.1 kg/m.
Q: Is QU120 interchangeable with A120 crane rail?
A: No. QU120 and A120 are different rail profiles. The numerical designation alone does not establish dimensional compatibility. Head width, rail height, base geometry, web dimensions and the wheel–rail interface should be checked before substitution.
Q: Can QU120 rail be used with an existing crane wheel?
A: It can be used when the existing wheel profile, wheel width and operating loads are compatible with the QU120 rail section and runway design. For replacement projects, the wheel and rail dimensions should be verified together before procurement.
Q: How should QU120 rail be joined?
A: QU120 rail can be joined using a bolted rail-joint arrangement with matching fishplates and bolts where specified by the runway design. Welding may also be used where an approved rail-welding procedure is specified for the project.
Q: Can QU120 rail be supplied with drilled ends?
A: Yes. End drilling can be supplied when required, but the bolt-hole pattern should follow the approved joint design or technical drawing. Hole diameter, spacing and end location should not be selected independently of the rail-joint arrangement.
Q: What information should be provided when requesting QU120 rail?
A: A purchase inquiry should preferably specify the QU120 profile, applicable standard, steel grade, rail length, required quantity, end processing, drilling requirements and delivery terms. For replacement projects, existing wheel and fastening information should also be provided where available.
Q: What should be checked before replacing an existing crane rail?
A: The existing rail profile and dimensions should be checked together with the crane wheel profile, wheel load, joint arrangement, fastening positions and runway support. This helps confirm that the replacement rail matches the existing crane system rather than relying on the profile designation alone.
Q: How should QU120 rail be stored before installation?
A: Rails should be placed on firm, level supports with adequate spacing to prevent bending and should be kept clear of standing water and corrosive contaminants. Bundles should remain properly supported until installation.
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