Railway track 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.
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) |
PA66 : Nylon 66.69%, glass fiber 30%, other 1%
| 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 |
COMPANY INFORMATION
Kunshan Signum Machinery Technology Co.,Ltd is a professional supplier of Rail Screw Dowel.
We can provide railway fastening products according to customers' drawings and samples.Our main products are as following:
1. Screw spike, Coach screw, Drive screw, Sleeper screw, Dog spike, Railroad spike, Lock spike, Cut spike,etc.
2. Rail clip, Tension clamp,SKL clip, Pandrol clip, Deenik clip.
3. Swivel bolts, Track bolt, Special bolts, U bolts, J bolts, Anchor bolts, Foundation bolts, Stud bolts, Rod bolts, Curved bolts, Tunnel bolts.
4. Tie plate, Base plate, Rail plate, Rail fixing base, Rail Pads, Sole plate, Sole pad
5. Fish plate, Joint bar, Rail joint, Splice bar.
6. Track bolt, T bolt, Rail bolt, Clamp bolt, Inserted bolt, Clip bolt, Fish bolt, Square bolt, Rod bolt, rail joint bolt.
7. Clamp plate, Rail spring clamp, Anchor plate, Steel clip.
8. Rail Shoulder, Rail sleeper Inserts, Rail Anchors for rail sleepers.
9. Plastic dowel, Guide plate, Nylon insert.
10. Chinese Standard Steel Rail: GB/T11264-89 9kg 12kg 15kg 22kg 30kg steel light rail; Q/YYG001-2008 (formerly YB222-63) 4kg 8kg 18kg 24kg steel light rail. GB2585-2007 38kg 43kg 50kg 60kg 75kg steel heavy rail. YB/T5055/93 QU70 QU80 QU100 QU120 crane rail.
11. German Standard Steel Rail: DIN536 A45 A55 A65 A75 A100 A120 A150 Crane Rail.
12. American Standard Steel Rail: ASTM-A1 ASCE25, ASCE30, ASCE40, ASCE60,ASCE75,ASCE85,90RA,115RE,136RE,175LBs Steel Rail.
13. British Standard Steel Rail: BS11-1985 BS50O,BS60A,BS60R,BS70A,BS75A,BS75R, BS80A,BS80R,BS90A, BS100A, BS113A.
Please feel free to contact us for more information.
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