0
Gnee Rails Logo
QU100 Rail

QU100 rails are core components for the stable operation of port gantry cranes, heavy-duty bridge cranes in steel mills, and large-scale loading and unloading equipment in mines. Gnee manufactures QU100 rails from U75V and U71Mn steel, achieving a tensile strength of ≥880 MPa. Through end-hardening or full-length hardening, the surface hardness reaches HRC30-40. They can withstand the static loads of 50-100 tons of A6-A7-class cranes and provide a service life of 10-15 years under normal use.

We also offer flexible customization: extra-long lengths from 12-24 meters, bends with a minimum radius of 15 meters, and optional upgrades with hot-dip galvanizing, epoxy zinc-rich coating, or silicon carbide wear-resistant coatings, ensuring they can withstand harsh, heavy-duty environments such as port salt spray, high temperatures in steel mills, and mine dust. Competitive pricing is available, so please feel free to inquire!

certificate

Additional information

Standard

YB/T5055-2014, GB/T 3426-2015

Material

U71Mn, U75V

Length

9m, 10n, 12m or customized

Specification

Model

Section size (mm)

Section size(x.1)

Typical length(n)

Theoretical weight(kz/m)

Material

Rail height

Base width

Head width

Web thickness

100kg

150

150

100

38

113.32

12

89.05

50MN

U71MN

U75V

Other Crane Rail Specifications:

Model

Section size (mm)

Section size(x.1)

Typical length(n)

Theoretical weight(kz/m)

Material

Rail height

Base width

Head width

Web thickness

70kg

120

120

70

28

67.30

12

52.77

50MN

U71MN

U75V

 

80kg

130

130

80

32

81.13

12

64.41

120kg

170

170

120

44

150.44

12

118.5

Product Description

QU100 rail is a specialized rail for cranes and transport vehicles, primarily used in industrial applications. Examples include large-scale projects, container handling at ports, and transport routes for large machinery and equipment, particularly gantry cranes. QU100 crane rail is typically manufactured from high-strength manganese steels such as U71Mn. This steel offers high strength, high hardness, and good wear resistance.

As a leading crane rail supplier, Gnee Crane offers carefully engineered gantry crane rail and bridge crane rail solutions. We specialize in custom track gauge configurations ranging from 600 mm to 1520 mm, as well as customized cross-sectional parameters to meet diverse project requirements. Gnee Rail also offers crane rails in other gauges, such as QU70, QU100, and QU120.

Features Of Gnee’s QU100 Crane Rail

  • Outstanding heavy-load capacity: With an allowable wheel load of up to 250kN, it’s suitable for 50-100-ton A6-A7 heavy-load cranes. It can withstand the static and dynamic impacts of the trolley/carriage weight plus the lifting capacity, preventing track deformation or cracking under heavy loads.
  • Excellent mechanical and wear-resistant properties: Made of U71Mn material with a tensile strength of ≥880MPa and a surface hardness of HRC30-35, it offers excellent wear and fatigue resistance. Under normal operating conditions, it boasts a service life of 10-15 years, and with optimized coatings, it can be extended to over 20 years for heavy-load applications.
  • High process precision and stable installation: Formed through continuous rolling on a universal rolling mill, it maintains a dimensional tolerance of ±0.5mm and a straightness of ≤1.5mm/m. It provides excellent compatibility with supporting components such as the pressure plate and wheels, preventing loosening after installation, reducing the risk of rail gnawing during operation.
  • Wide environmental adaptability: Withstands temperatures up to 300°C and -40°C. Galvanized and epoxy-coated, it withstands corrosive and abrasive environments like coastal salt spray and steel mill dust, eliminating the need for frequent replacement and maintenance.
  • Strong application adaptability: Widely used in core scenarios such as port gantry cranes, heavy-duty bridge cranes in steel mills, and heavy-duty mining equipment. Advanced customization services are available to meet the needs of diverse heavy-duty operating conditions.

What Customized Services Can Gnee Rails Supply?

QU rails are suitable for non-standard hole profiles.

  1. End Processing: Chamfering rail ends prevents sharp edges from damaging wheels or accessories. End milling ensures smooth joints and minimizes gaps between connected rails.
  2. Bent/Looped Rails: Cold or hot bending is performed according to design requirements, making them ideal for curved tracks or road sections. Internal stress and top surface flatness are strictly controlled during the bending process.
  3. Trolley Rails: QU series crane rails can also be used in port crane trolley rail systems. Gnee Rails can process short rails to customer specifications and also provides trolley rail accessories such as fixing blocks and end stoppers.
  4. Rail Beveling: We can provide crane rail beveling at angles including, but not limited to, 45° to accommodate special installation layouts or connection requirements.
  5. Customization: We can customize rail ends (welded joints) to meet project or customer requirements.

QU100 Rail Material Strength

PropertyU71MnU75V
Mechanical Property
Tensile Strength≥880 MPa≥880 MPa
Yield Strength≥457 MPa—
Elongation≥9%≥10%
HardnessHBW 360~300—
Chemical Composition
C0.65-0.76%0.71-0.80%
Si0.15-0.35%0.50-0.80%
Mn1.10-1.40%0.75-1.05%
P≤0.03%0.03%
S≤0.03%0.03%
V≤0.030%0.04-0.12%
OtherNb≤0.010%–

QU100 Rail Applications

QU100 rails are designed for heavy, frequently used equipment and are commonly found in:

  1. Cranes: Such as gantry cranes, overhead cranes, and tower cranes.
  2. Large transport vehicles: Such as ladle cars in steel mills, container transfer vehicles at ports, and hopper cars in mines.
  3. Industrial plant internal rails: Any industrial application requiring heavy vehicles to operate on fixed tracks.

Additional information

Standard

YB/T5055-2014, GB/T 3426-2015

Material

U71Mn, U75V

Length

9m, 10n, 12m or customized

Accessories For QU-series Rail System

As a professional supplier of QU-type crane rails, Gnee not only offers high-quality QU70 rails, but also a full range of compatible installation accessories to ensure safe and efficient operation of the entire rail system. All accessories undergo strict quality control and perfectly match the QU crane rails, enabling “one-stop purchasing + worry-free installation.”

Crane Rail Clamps

overhead crane rail clamps

Accessories

Materials

Specification

Rail Clamps

Q235B, Q345

Lateral force: Q235 ≥45 kN, Q345 ≥55 kN.

Tightening torque: Q235 approximately 150 N·m, Q345 approximately 220 N·m.

Railway Fishplate

railway fishplate

Accessories

Materials

Specification

Fishplate

U71Mn, 45# forged steel, Q235 rolled steel

Tensile strength ≥880 MPa; QU100 fishplates are available in 4- or 6-hole designs.

Rail Rubber Pad

Crane Rail pads

Accessories

Materials

Specification

Rail Rubber Pad

Chloroprene, butadiene, or natural rubber

Corresponding to 7a-5; hardness 73-82 degrees; tensile strength ≥12.5 MPa. Available in three thicknesses: 5/8/10 mm. .

High Tensile Rail Bolts

Accessories

Materials

Specification

Rail Bolts

Strength grades 8.8 and 10.9

For use with fishplates or pressure plates; 8.8/10.9 grade bolts comply with ISO/GB standards

FAQ

What is the surface treatment for QU100 rails?

  • Rust Prevention: Factory-applied sandblasting, tar-epoxy primer, and two coats of topcoat. Salt spray tests can withstand over 1,000 hours.
  • Wear-Resistant Coating: Silicon carbide-aluminum oxide composite ceramic coating is available upon request to further reduce wear.

Can samples be provided? Are samples free?
Free samples are available, but shipping is at the buyer’s expense. Please contact us for details on payment methods.

What is the minimum order quantity?
Gnee supports small orders with no minimum order quantity. Discounts are negotiable for large-volume purchases or long-term partnerships.

How do I choose the right QU rail model?
The cross-sectional dimensions and material strength of different QU models determine their allowable wheel loads. The following is the applicable wheel load range for common models (based on U71Mn material, quenched):

QU Series Models

Weight per meter (kg/m)

Weight per meter (kg/m)

Weight per meter (kg/m)

Weight per meter (kg/m)

QU70

52.8

120

≤120

5-20 tons (A1-A5 grades)

QU80

63.5

130

≤180

20-50 tons (A4-A6 grades)

QU100

89.0

150

≤250

50-100 tons (A6-A7 grades)

QU120

118.0

170

≤350

100-200 tons (A7-A8 grades)

Why Choose Gnee Rail Fasteners?

As a world-leading manufacturer of rail fastener systems, Gnee Rail Fasteners has 18 years of professional experience, an annual production capacity of 10 million sets, and its products are exported to more than 60 countries. We have built 5 production bases, equipped with 400 technicians, and annual R&D investment exceeds 5% of revenue.

Our products have been used in more than 2,000 railway projects, with a total of 50,000 kilometers of track laid, covering more than 100 high-speed rail projects. From -40℃ to 80℃, the product performance remains stable and reliable. With strict quality control and professional technical support, more than 85% of our customers maintain long-term cooperation with us, and customer satisfaction continues to remain above 93 points.

Professional packaging

  • Adopting 5-layer reinforced protective packaging system, moisture-proof performance reaches 99%
  • Each box load-bearing test reaches more than 1000kg
  • Unique shockproof lining can reduce 90% of transportation vibration
  • Each product is equipped with RFID smart traceability label, which can be traced 24 hours a day

Strict product testing and inspection

  • Possessing 8 international certifications including ISO9001
  • Testing equipment with an accuracy of 0.001mm
  • Fatigue testing with over 3 million cycles
  • Annual testing capacity with over 5 million sets of fasteners
  • All products are 100% non-destructively tested with X-rays

Rich successful cooperation cases

  • Established partnerships with railway companies in more than 60 countries
  • Annual average repeat order rate reaches 85%
  • Customer satisfaction survey score is more than 93 points
  • The longest partnership lasts more than 15 years

Adequate inventory guarantee

  • The standing inventory is maintained at more than 3 million sets.
  • 48-hour fast delivery service for spot goods.
  • The storage area is 20,000 square meters.
  • The inventory turnover rate is controlled at 45 days.
  • The ERP system monitors inventory in real time with an accuracy rate of 99.9%.

Wide range of global engineering applications

  • Products are used in more than 2,000 railway projects around the world
  • High-speed rail projects covering 35 countries
  • Cumulative track mileage exceeds 50,000 kilometers
  • Product service life is more than 18 years
  • 24/7 global technical support team, response time <2 hours

Related Products

Contact Us