Railroad sleeper are the core components of the railway track system, and they bear the key functions of guiding trains, bearing wheel impact loads and transmitting them to rail sleepers. Their design must meet the requirements of high strength, wear resistance, fatigue resistance and corrosion resistance to ensure the stability and safety of train operation. Modern rails adopt an “H”-shaped cross-section structure, which consists of three parts: rail head, rail waist and rail bottom. The bending resistance is improved by optimizing the cross-section design, and it is adapted to the needs of different railroad track types.
Features of Railroad Sleeper
Material and process High-strength alloy steel: U71Mn, U75V, rare earth rails and other materials are used, and the strength, toughness and wear resistance of the railway sleepers are improved through micro-alloying technology. Heat treatment process: Supports quenching rails, offline heat treatment rails and other processes, significantly improving the tensile strength of the railway sleepers (up to 1300MPa) and extending the service life. Structural innovation H-shaped cross-section design: The rail head, rail waist and rail bottom are subjected to coordinated force to improve the bending resistance and reduce the risk of dynamic stress concentration. Seamless technology: supports welding 100-meter fixed-length railway sleepers into 500-meter super-long rails, eliminates rail gaps, reduces train vibration and noise, and reduces maintenance costs. Standardization and customization Compatible with international standards: complies with international standards such as GB, EN and supports customized production of rail type, length and chemical composition. Special application adaptation: provides special cross-section railway sleepers such as crane rails (QU70-QU120) and grooved rails to meet the needs of ports, mines and other scenarios
Features of Railroad Sleeper
Type
Specification (kg/m)
Cross-sectional dimensions (mm)
Theoretical weight (kg/m)
Standard length (m)
Application scenarios
Light rail
9-30
Height 63.5-107.95, bottom width 32.1-60.33
8.94-30.10
6-12
Coal mine tunnels, small tonnage transport vehicles
Heavy rail
38-75
Height 120-192, bottom width 110-150
38.733-74.414
12.5/25/50/100
Railway trunk line, subway, heavy-duty freight
Crane rails
QU70-QU120
Height 120-170, bottom width 120-170
52.80-118.10
9-12.5
Port cranes, heavy-duty freight trolleys
Turnout rails
50AT1/60AT1
Asymmetric section design
Customization
Customization
Railway turnouts and curved section laying
Function of Railroad Sleeper
Load transfer and dispersion The rail head contacts the wheel, the rail waist transfers the load to the rail bottom, and the rail bottom and the sleeper work together to evenly disperse the pressure to the roadbed to ensure the stability of the track structure. Dynamic performance optimization Through high-strength materials and heat treatment processes, the fatigue cracks and wear of the railway sleepers are reduced to meet the operation requirements of heavy-load trains (axle weight 30-35 tons) and high-speed trains (above 300km/h). Seamless and stability Seamless rail technology eliminates rail joint impact, and with high-precision track plates (error ≤0.1mm), it significantly improves the smoothness and safety of train operation. Environmental adaptability Corrosion-resistant coatings and material optimization adapt to thermal expansion and contraction under extreme climatic conditions and extend the service life of railway sleepers.
Application of Railroad Sleeper
High-speed railways Use 60kg/m and above rail sleeper, combined with ballastless track technology, to meet the operation requirements of 300-350km/h trains and reduce maintenance costs.
Heavy-duty freight railways Use 75kg/m heavy-duty rail sleepers, suitable for 30-35 ton axle load trains, to increase capacity and reduce rail wear. Urban rail transit Subway and light rail systems use 50kg/m or 60kg/m rail sleepers, combined with elastic fastener systems to reduce vibration and noise and improve passenger comfort. Industrial and special scenarios Crane rails (QU70-QU120) are used in heavy-duty equipment such as ports and mines; grooved rail sleepers are used in tram systems to improve safety and aesthetics.
Package of of Railroad Sleeper
Polybag+Carton box+Wooden case/Pallet, according to customer’s request
Company Profile
Luoyang Fonyo Heavy Industries Co., Ltd. was founded in 1998, covers an area of 72,600㎡, with more than 300 employees, 32 technicians, including 5 senior engineers, 11 assistant engineers, and 16 technicians. It has been rated as Luoyang Engineering Technology Center, Luoyang Technology R&D Center, and National High-tech Enterprise for many times. Our production capacity is 30,000 tons per year. Currently, we mainly produce cast steel, cast iron (gray iron, ductile iron, etc.), processing of finished product and component assembly for locomotive,railcar,high-speed trains, mining equipment,wind power,etc.Our products have been exported to Russia, the United States, Germany, Argentina, Japan, France, South Africa,Italy and other countries.
FAQS
Q1: Are you a manufacturer or trading company? A:We are a manufacturer.Our company was founded in 1998, with nearly 30 years in casting industry, a total area of 72,600㎡, with a factory building area of 51,000㎡. Q2. What are your main products? A: We primarily focus on steel casting, iron casting, finished product machining, and component assembly production. Q3: How precision can you produce casting parts? A: We have the capability of producing casting parts with different casting processes. The production is strictly comply with ISO 9001, ISO 14001 and ISO45001,EN15085, IRIS. Q4. Can you produce according to the samples? Yes, we can produce by your samples or technical drawings. We can build drawings for you after we get your samples too. Q5: How do you do Quality Control before delivery? A: Quality inspection is a very important factor to guarantee the quality of steel casting parts. We follow 3 times of inspection during the whole production process. And we will provide material testing report, dimensional testing report, and mechanical properties testing report to our clients before delivery.
It you are interested in any products,please feel free to contact us. Contact: Stella Liu Email:sales@railwaypart.com Mobile:008615515351287
