Suzhou Zhongyue Railway Material Co.,Ltd.
Suzhou Zhongyue Railway Material Co.,Ltd. Where there is a railway, there we are!
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SKL14 Railway Fastening System
One set of SKL14 including:
A) 4 units of Tension clamp SKL14
B) 4 units of Screw Spike Ss8 24*160
C) 4 units of Insulator Wfp14
D) 4 units of Plastic dowel Sdu9 24*165
E) 2 unit of Rail Pad
F) 4 units of Flat Washer ULS7
Technical Parameters
| Part name | Type | Material | Finish | Remark |
| SKL14 tension clip | Dia. 13mm | 60Si2MnA | Plain oiled, color painting, or the other required ones. | Hardness: 42-47HRC Fatigue test: When the clip spring deflection reaches 9.1mm and the swing deflection is 1.42mm, the fatigue life will be 5 millions cycles without breaking. Standard: DIN17221, GB/T1222 |
| Ss35 screw spike | M24×150mm M24 ×160mm M24×180mm | Grade 4.6: Q235 Grade 5.6: 35# Grade 8.8: 45# | Plain oiled, black oxide, galvanized, hot dip galvanized, Dacromet and sherardized | Standard: ISO898-1, UIC864-1 and NF F500-50 |
| Plain washer | Uls7 | Q235 | Plain oiled, black oxide, galvanized, hot dip galvanized, Dacromet and sherardized | Standard: EN10025, EN10139 |
| Plastic dowel | For different sizes of screw spike | HDPE, Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other color | For insert into concrete sleeper |
| Guide plate | UIC54, UIC60, 50kg rail, 60kg rail, and other sizes as ordered | Reinforced Nylon 66 (PA66) | Black, blue, yellow, green or other color | Different designs are available. |
| Rail pad | UIC54,UIC60, and size as ordered | EVA, or rubber | Black, blue, yellow, green or other color |
|
Produce Process
| Clip Production Process | |
| 1 | raw material |
| 2 | shearing |
| 3 | heating to forging temperature (950-1000 degrees celsius) |
| 4 | forming |
| 5 | hardening |
| 6 | tempering below 350 degrees celsius |
| 7 | inspection |
| 8 | packing |
Material Choice for SKL14 tension clamp: spring steel
Other SKL Series' Technical Parameter
| SKL Series | SKL1 | SKL3 | SKL12 | SKL14 |
| Material | 60Si2MnA | 60Si2CrA | 55Si2Mn | 38Si7 |
| Chemical composition(%) | C:0.56-0.64, | C:0.56-0.64, | C:0.52-0.60, | C:0.35-0.42, |
| Mn:0.60-0.90, | Mn:0.40-0.70, | Mn:0.60-0.90, | Mn:0.50-0.80, | |
| Si:1.60-2.00, | Si:1.40-1.80, | Si:1.50-2.00, | Si:1.50-1.80, | |
| Cr:≤0.35, | Cr:0.70-1.00 | Cr:≤0.35 | ||
| P:≤0.03, | P:≤0.03, | P:≤0.03, | P:≤0.03, | |
| S:≤0.03 | S:≤0.03 | S:≤0.03 | S:≤0.03 | |
| Hardness | 42-47HRC | |||
| Fatigue life | for Dia.18 is 3 millions cycles without breaking | |||
| for Dia.20 is 5 millions cycles without breaking | ||||
Surface Treatment
Inspection machine
Package
Application
Other Types
| Same series | SKL1 |
| SKL2 | |
| SKL3 | |
| SKL12 | |
| SKL14 | |
| General series | E type |
| Nabla type | |
| KP / KPO type | |
| Special series | PR type |
| Deenik type | |
| Russian type | |
| Fats clip | |
| Gauge lock clip |
Sale Range
Quotation necessity