What is the best way to prevent rail elastic clips from rusting?
Preventing rust on rail elastic clips requires a systematic protection strategy centered on establishing multiple protective barriers.
The primary measure is adopting high-quality surface treatment technology. Hot-dip galvanizing is currently the most effective anti-corrosion method, requiring a zinc coating thickness of no less than 50μm, with a uniform surface free of bare spots. In extremely corrosive environments (e.g., coastal areas, near chemical plants), a composite protection system combining an epoxy resin coating with the zinc layer is recommended. This dual protection can extend corrosion resistance life by 3-5 times. Pre-installation protection is also crucial; applying specialized anti-corrosion grease to the contact surfaces between the clip, rail, and baseplate can effectively fill micro-gaps and prevent electrolyte seepage that leads to corrosion cells.
A preventive cleaning mechanism should be established in daily maintenance. Regularly use neutral cleaners to remove corrosive substances like salt and industrial dust accumulating on the clip surface, especially necessary after de-icing seasons or coastal gales. If inspection reveals white corrosion products (zinc hydroxide) on the galvanized layer, clean it immediately with a stiff nylon brush and recoat with a zinc-rich repair paint. If reddish-brown iron rust has already appeared, mechanical derusting followed by application of a specialized epoxy zinc-rich primer is required. Clips severely corroded leading to loss of clamping force must be replaced immediately to prevent chain reactions.
Environmental improvements can also significantly delay the corrosion process. Laying hydrophobic rubber baseplates in the clip installation area can reduce water retention; improving the track drainage system avoids prolonged water contact with metal components.
The corrosion-resistant clip series provided by GNEE RAIL, through optimized zinc-aluminum alloy composition and nano-sealing technology, achieves a protection level of 2000 hours without red rust in standard salt spray tests. We can also customize the most suitable anti-corrosion solution based on the client's specific environmental conditions and provide professional lifecycle maintenance guidance.
Major Rail Clip Types
| Series | Type | Hardness | Material | Fatigue life | Surface | Standard |
| E rail clip | E1,E2,E3 | 44-48HRC | 60Si2MnA: C:0.56-0.64,Mn:0.60-0.90, Si:1.60-2.00,Cr:≤0.35, P:≤0.03, S:≤0.03 60Si2CrA: C:0.56-0.64,Mn:0.40-0.70, Si:1.40-1.80,Cr:0.70-1.00 P:≤0.03, S:≤0.03 55Si2Mn: C:0.52-0.60,Mn:0.60-0.90, Si:1.50-2.00,Cr:≤0.35 P:≤0.03, S:≤0.03 38Si7:C:0.35-0.42,Mn:0.50-0.80, Si:1.50-1.80, P:≤0.03, S:≤0.03 |
For Dia.18 is 3 million cycles without breaking. For Dia.20 is 5 million cycles without breaking. |
plain (oiled), Oxide black, color painting or according to customer requirement. | DIN17221, BS970, GB/T1222 |
| E1609 | ||||||
| E1809 | ||||||
| E1817 | ||||||
| E2001 | ||||||
| E2006 | ||||||
| E2009 | ||||||
| E2055 | ||||||
| E2056 | ||||||
| Vossloh clip&Forged rail clip | SKL1 | 42-47HRC | ||||
| PR rail clip | PR309 | 44-48HRC | ||||
| PR401 | ||||||
| PR601 | ||||||
| PR85 | ||||||
| Customized production of rail clips are available according to your drawings or samples! | ||||||
