Shanghai Suyu Railway Material Co.,Ltd

Contact person: Linda Yuan

Tel: 0086-021-58999010

Mp: 008615901613885


skype: wysuyu1

Add: 1736 Room 15th Building 201 Jinxiang Road Pudong Shanghai China 201206

Rail Plastic Sleeve

Home » Products »Rail Plastic Sleeve

Rail Plastic SleeveRail Plastic SleeveRail Plastic Sleeve

Rail plastic dowel is also called rail plastic sleeve/plastic insert/concrete dowel/ It is pre-embedded into concrete sleepers, together with sleeper screw, rail pad and rail insulator to fix the rails.

In a rail fixing system, rail plastic dowel can be regarded as a fixed foundation because it needs to be separately pre-inserted into the concrete sleeper before assembling the rail fixing system parts. Used to ensure a good connection between the rail fastening system and the concrete sleepers.

On the other hand, similar to the rail pad or rail insulator, another function of rail plastic is to isolate the fastener part from the connector. Therefore, the quality of the Rail plastic dowel pre-inserted into concrete sleepers is very important , especially its strength and fatigue life, is very important for the entire railway line. The combination of the Sleeper screw and the plastic insert makes the backing plate fasten to the sleeper by the rail clip. It has enough elasticity range to avoid loosening of the rail bolts and reduce maintenance work.

Rail plastic dowel is classified according to the material it needs: PA66 or HDPE, depending on the customer's different technical specifications, as follows:


Rail plastic dowel


For different sizes of sleeper screw


PA66: Nylon 66.69%, glass fiber 30%, other 1%


Technical specifications

Tensile strength: ≥170Mpa
Elongation: ≤4.4%
Bending Strength: ≥250Mpa
Impact Strength(No gap): ≥80KJ/m2
Melting point:250-270°C
Insulation resistance:≥1×108Ω
Glass fiber content:30-35%

Density: 0.95-0.98g/cm3
Tensile strength: ≥19Mpa
Elongation: >80%
Melting point: 170-190°C
Insulation resistance: ≥1×1010Ω


.Yellow, black, white etc

Other Products
  • Rail screw
  • Rail screw Rail sleeper screw spikes are used to fasten sole plates and ribbed base plates to wooden sleepers. In rail construction with the concrete sleepers, the rail sleeper screw is used in combination with a plastic dowel pressed in the concrete sleeper....
  • Rail bolt
  • Rail bolt According to the use of different places, railway bolts can be divided into track bolt and clip bolt.Track bolt, also known as Fish bolt, is one of the most important rail fasteners. It is used to fix and connect two rails. The size of the rail bolts …...