What is the dimension of QU120 crane rail

Oct 09, 2025 Leave a message

Crane rail is used as a special section rail for crane carts and small cars. The standard length is 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, etc. Common specifications are QU70, QU80, QU100, QU120, and the number behind QU indicates the width of the track head.

 

QU120 Crane Rail is a high load capacity rail designed for heavy duty cranes. It is made of high carbon steel U71Mn with tensile strength of ≥880 MPa, excellent wear and fatigue resistance, and is suitable for frequently impacted operating scenarios.

 

QU120 rail

 

Rail TypeSIZE(mm)theoretical weight
heightbottom widthhead widthwaist depth
Crane railQU70120120702852.8
QU80130130803263.69
QU1001501501003888.96
QU12017017012044118.1

 

Steel GradeC(%)SiMnCrVPSTensile Strength (Rm/MPa)
U71Mn0.65~0.760.15~0.580.70~1.40––≤0.035≤0.030≥880


QU120 rail length are furnished from 6-12meter. Other lengths are available upon request from GNEE RAIL. Steel Grade are produced to various qualities and specifications as required by our clients.GNEE RAIL provides various standard rail track, such as AREMA, GB, BS, DIN, UIC, and other custom rail tracks. Send your special customization requirements to GNEE.

 

Shape of crane rail

 

  • The lateral curvature of rail should not be over 1.5mm every meter, and the total lateral curvature should not over 8mm.

 

  • The total upward and downward curvature should not be over 6mm.

 

  • The curvature of rail ends should not be over 1mm within 0.5m.

 

  • The rail of QU120 is restricted by capability of leveler equipment, so its curvature need to be negotiated by supply and requisitioning parties.

 

  • The torsion of rail should not be more than 1/10000 of the overall length of rail.

 

  • The asymmetry of cross section and vertical axis : the rail flange should be not over 2mm, and the rail head should not be over 0.6mm.

 

  • The rail flange should not be concave. The distance between the center of rail flange and the bulge of both sides should be within 0.5mm.

 

heavy rail

 

Leveraging over 18 years of industrial expertise, GNEE RAIL specializes in precision-engineered crane rail systems tailored to complex operational requirements. As a certified manufacturer adhering to DIN/EN/ISO standards, GNEE integrate advanced metallurgical technologies with rigorous quality control protocols to deliver rails with guaranteed dimensional accuracy and load-bearing performance.

 

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