Composite Sleepers
Your Professional Composite Sleepers Supplier!
GNEE RAIL has a rich history and experience in the manufacture of flexible rail fasteners since 2008. GNEE RAIL specialized in manufacturing and supplying railway equipment, including railway fasteners, rail joints, railway sleepers, rail tracks, railway fastening system and other fastening parts for railway construction.
Our Best-Selling Composite Sleepers
Polyethylene Plastic Rail Sleeper
Polyethylene plastic rail sleepers, also known as PE plastic sleepers or polyethylene composite sleepers, are made from high-quality polyethylene materials. These sleepers are known for their outstanding durability, resistance to moisture, chemicals, and extreme weather conditions. Polyethylene plastic sleepers contribute to sustainable and efficient railway infrastructure.
HDPE Plastic Rail Sleepers
HDPE plastic rail sleepers, also referred to as high-density polyethylene sleepers or plastic composite sleepers, are made from durable and eco-friendly HDPE materials. These sleepers offer excellent resistance to moisture, UV exposure, and chemical degradation, ensuring a long lifespan with minimal maintenance. Making them an ideal solution for modern, sustainable rail infrastructure.
UHMWPE Plastic Rail Sleepers
UHMWPE plastic rail sleepers, also called ultra-high molecular weight polyethylene sleepers or high-performance plastic sleepers, are engineered for exceptional strength and durability. These sleepers are highly resistant to abrasion, impact, weather, and chemical exposure, making them ideal for heavy-duty rail applications.
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Composite Sleepers Specification
|
Material |
100 % recycled thermoplastics |
|
Maximal axle load/speed |
22,5 t with 160 km/h; 32,5 t with 120 km/h |
|
Weight |
0,93 g/cm³ |
|
Electrical conductivity resistance |
Excellent |
|
Thermal conductivity |
Low |
|
Life expectancy |
50 years |
|
Resistence |
Fungi, bacteria, insects, UV radiation and extreme weather conditions |
● Simple installation with conventional track-construction technology
● Low maintenance costs
● Ideal suitability for turnout and bridge projects in mass transit, subways and railroads
● Easy to lay using conventional track construction techniques
● High strength and excellent damping
● Resistance in all challenging climatic regions
● No need for toxic chemicals
● 100% recycled and recyclable
Composite Sleeper Size
|
Widthmm） |
Height(mm) |
Lengh(mm) |
|
100 |
100 |
1000-3000 |
|
150 |
150 |
1000-3000 |
|
200 |
200 |
1000-3000 |
|
300 |
300 |
1000-3000 |
Functions of Composite Sleepers
Support and Load Distribution
They bear the weight of the rails and rolling stock (trains), distributing the dynamic loads evenly to the underlying ballast and subgrade. This prevents excessive settlement or deformation of the trackbed.
Maintaining Track Gauge
They hold the rails at a precise distance apart (the gauge), ensuring stability and alignment for safe train movement. Fastening systems (clips, spikes, or screws) secure the rails to the sleepers.
Anchoring the Track
By providing a stable base, they resist lateral and longitudinal movement of the rails caused by train forces, temperature changes, or ground shifts.
Vibration and Noise Dampening
The materials in composite sleepers, such as recycled plastics or rubber additives, can absorb some of the vibrations and noise generated by passing trains, improving ride quality and reducing environmental impact.
Alignment and Stability
They maintain the correct geometry of the track (level, curvature, and elevation), which is critical for smooth and safe train operations, especially at high speeds.
Insulation (in some cases)
Depending on the design, composite sleepers can offer electrical insulation, which is useful in electrified rail systems to prevent unwanted current flow through the track.
Production Technology of Composite Sleeper
Material Preparation
Plastics are collected, cleaned, and shredded into small pellets or flakes. Fibers, rubber, and additives are sourced and prepped, with precise ratios determined by the sleeper’s intended use.
01
Blending
The plastic pellets are melted in an extruder or mixing chamber, where fibers, rubber, and additives are thoroughly combined. This molten mixture forms a uniform composite material with the desired properties.
02
Shaping
Extrusion: The most common method, where the molten composite is forced through a die to create a continuous sleeper profile, then cut to length.
03
Molding
The material is poured into molds and pressed into shape, often used for complex designs or smaller batches. Cooling follows, solidifying the sleeper into its final form.
04
Finishing
Composite sleepers may be drilled or fitted with inserts for fastening systems. Surface treatments, texturing for grip or additional UV coatings, can be applied to enhance performance.
05
Packaging and Shipping
|
Packaging |
Bundling |
|
Transportation methods |
Road transport, rail transport, sea transport, air transport |
Our Certificate
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FAQ
As one of the leading composite sleepers manufacturers and suppliers in China, we warmly welcome you to wholesale composite sleepers for sale here and get free sample from our factory. All customized products are with high quality and competitive price.
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