| Customization: | Available |
|---|---|
| After-sales Service: | Returns and Exchanges |
| Warranty: | 3 Years |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Rail screw dowel,also known as rail plastic sleeve, concrete sleeper insert, is a counter-party fastener for a sleeper screw or anchor bolt. It is pre-imbedded into the concrete or wooden sleeper tie. Jointed with screw spikes, guide plates and rail clips, the plastic screw dowel can fasten the steel rail.
Rail plastic dowel is a counter-party for the anchor bolt or sleeper screw spike, usually, it is used to guarantee the good connection and linkage of the rail fastening system with the concrete sleeper, with screw spikes or bolts.
Signum can provide different types of rail washers with various specifications to meet customers' requirements.
Below are two kinds of materials that used for manufacturing rail screw dowels: HDPE and PA66 Nylon with glass fiber.
HDPE| No. | Technique parameter | Unit | Technical requirement | Value |
| 1 | Density | g/ | 0.95-0.98 | 0.95 |
| 2 | Tensile strength | Mpa | ≥19 | 19 |
| 3 | Elongation | % | >80 | 150 |
| 4 | Melting point | °C | 170-190 | 190 |
| 5 | Insulation resistance | Ω | ≥1×1010 | 3.5×1010 |
| 6 | Hardness | A | ≥98 | 98(A) |
| No. | Technique parameter | Unit | Technical requirement | Value |
| 1 | Density | g | 1.3-1.45 | 1.45 |
| 2 | Tensile strength | Mpa | ≥170 | 178 |
| 3 | Elongation | % | ≤4.4 | 4.0 |
| 4 | Bending Strength | Mpa | ≥250 | 290 |
| 5 | Impact Strength(No gap) | KJ/m2 | ≥80 | 85 |
| 6 | Melting point | °C | 250°C-270 | 270 |
| 7 | Insulation resistance | Ω | ≥1×108 | 5×108 |
| 8 | Glass fiber content | % | 30-35 | 35 |
| 9 | Hardness | HRR | ≥110 | 118 |
){kind=link}