A rail dowel, also known as a rail plastic dowel, rail plastic sleeve, or plastic insert, is a component used in rail fastening systems. It's a cylindrical piece, often made of plastic like HDPE or PA66, that's pre-embedded into a concrete or wooden sleeper. It works in conjunction with screw spikes, guide plates, and rail clips to secure the rail to the sleeper. The dowel provides a secure, threaded receptacle for the screw spike, ensuring a stable and reliable connection.
Product Details
1.Anchor spikes:
Provide a threaded connection base for screw spikes to ensure a firm combination of the fastening system and the sleeper.
2.Adjusting gauge/level:
Some designs allow for fine-tuning the track position through sleeves.
3.Anti-loosening and anti-rust:
The inner wall thread or coating can prevent the rail spike from loosening and corroding.
4.Insulation:
Some of the bushings are made of materials such as nylon, enabling the insulation of the track circuit.
Technical Specifications
| Material | HDPE | PA |
| Type | Sdu9 | Sdu25 |
| Color | White, Black, Beige or according to customer's drawings | White, Black, Beige or according to customer's drawings |
| Tensile Strength | ≥19Mpa | ≥170Mpa |
| Melting Point | 170-190°C | 250-270°C |
| Insulation Resistance | ≥1×1010Ω | ≥1×108Ω |
| Hardness | ≥98A | ≥110HRR |
| Density | 0.95-0.98g/cm3 | 1.3-1.45g/cm3 |
| Elongation | >80% | ≤4.4% |
Founded 2008, GNEE RAIL has been providing railway fastening solutions for worldwide railway road constructions, which mainly supplies rail fasteners, fish joint, rail track and other rail fastening system parts.Click here to obtain the detailed product catalog of GNEE RAIL.