How much does ERC 3701 weight?
Jan 28, 2026
A rail clip is a resilient holding component that secures rails through elastic deformation, allowing controlled flexibility that protects track structures from impact loads and vibration while keeping rails firmly seated. This balance between rigidity and elasticity is essential for modern railway infrastructure.
GNEE RAIL supplies complete clip solutions including E-Type, SKL, Nabla, Pandrol PR, KPO, Deenik, Fast Clip, Crane Rail Clip, and Russian Rail Clip systems, serving railway, metro, mining, and port crane rail projects worldwide.
How much does ERC 3701 weight?
An Elastic Rail Clip (ERC) Mark-III T-3701 typically weighs approximately 910 grams (0.91 kg). These are manufactured from spring steel (specifically, grade EN-45) and have a 20.64 mm diameter, commonly used with 52kg/60kg rail sections in Indian Railways.
Key details regarding ERC T-3701:
- Weight: Approximately 910 Grams.
- Material: Spring Steel.
- Dimensions: 20.64 mm diameter.
- Usage: Used as a fastening component for 52kg/60kg rail on PSC sleepers.
It is designed to handle high axle loads, specified for use with 52/60kg rails.
Other ERC Rail Clip weights
Rail clips, primarily used for fastening rails to sleepers, generally weigh between 0.18 kg and 1.0 kg (0.4 to 2.2 lbs) per piece, depending on the type, diameter, and application (e.g., E-type, SKL, Deenik). Common elastic clips, such as E1609 or Type III, typically weigh around 0.43 kg to 0.80 kg.
| Model | Diameter | Weight | Material |
| Type III | Ø18 | 0.80kg/pc | 60Si2MnA |
| E1609 | Ø16 | 0.43 kg/pc | 60Si2MnA |
| E1809 | Ø20 | 0.61kg/pc | 60Si2MnA |
| E1813 | Ø18 | 0.62kg/pc | 60Si2MnA |
| E2001 | Ø20 | 0.80kg/pc | 60Si2MnA |
| E2007 | Ø20 | 0.80kg/pc | 60Si2MnA |
| E2009 | Ø20 | 0.80kg/pc | 60Si2MnA |
| E2039 | Ø20 | 0.80kg/pc | 60Si2MnA |
| E2055 | Ø20 | 0.80kg/pc | 60Si2MnA |
| E2056 | Ø20 | 0.80kg/pc | 60Si2MnA |
| E2063 | Ø20 | 0.80kg/pc | 60Si2MnA |
| PR85 Rail Clip | Ø13 | 0.25kg/pc | 60Si2MnA |
| PR309A | Ø19 | 0.85kg/pc | 60Si2MnA |
| PR401 | Ø20 | 0.97kg/pc | 60Si2MnA |
| PR415 | Ø20 | 0.95kg/pc | 60Si2MnA |
| PR601A | Ø20 | 1.03kg/pc | 38Si7 |
| SKL 1 | Ø13 | 0.48kg/pc | 60Si2CrA |
| SKL 3 | Ø13 | 0.48kg/pc | 60Si2CrA |
| SKL 12 | Ø13 | 0.53kg/pc | 38Si7 |
| SKL 14 | Ø13 | 0.53kg/pc | 60Si2MnA |
| Special Rail Clip | Ø13 | 0.48kg/pc | 60Si2MnA |
| Russia Rail Clip | Ø18 | 0.58kg/pc | 60Si2MnA |
| Deenik Clip | Ø25 | 0.49-0.68kg/pc | 60Si2MnA |
Which type of ERC Railway Clip is the most durable?
E-type rail clips and SKL tension clips, typically made from high-strength spring steel (often EN-45 grade or similar), are considered the most durable rail fastening components for modern tracks. They provide superior fatigue life-with some lasting millions of cycles without breaking-and offer consistent, long-lasting clamping force while resisting corrosion, especially in harsh environments.
Key Durable Railway Clips:
- E-Type Rail Clips (E1609, E2009, etc.): Highly durable for harsh conditions and offer excellent elasticity, reducing maintenance frequency.
| Model | Diameter | Material | Under Pressure | HRC | Weight |
| E1609 | Ø 16mm | 60Si2MnA | ≥950kg | 44-48 | 0.43kg/pc |
| E1809 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.61kg/pc |
| E1813 | Ø 18mm | 60Si2MnA | ≥950kg | 44-48 | 0.62kg/pc |
| E2001 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2009 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2039 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2007 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2055 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2056 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
| E2063 | Ø 20mm | 60Si2MnA | ≥950kg | 44-48 | 0.80kg/pc |
- SKL Tension Clips (SKL1, SKL12, SKL14): Known for holding high, stable clamping forces in heavy-haul and high-speed applications.
| Name | SKL tension clamp |
| Material | 60Si2MnA 60Si2CrA 55Si2Mn 38Si7 |
| Hardness | 42-47HRC |
| Fatigue Life | for Dia.18 is 3 millions cycles without breaking |
| for Dia.20 is 5 millions cycles without breaking | |
| Surface | plain (oiled), Oxide black, color painting or according to customer requirement |
| Standard | DIN17221, BS970, GB/T1222 |
- Nabla Rail Clips: Made of 60Si2MnA steel, providing another high-durability option.
| Name | Nabla rail clip |
| Material | 60Si2MnA |
| Hardness | Hrc41-48 |
| Sizes | As your drawing |
| Surface | plain (oiled), Oxide black, color painting or according to customer requirement |
| Standard | DIN17221, BS970, GB/T1222 |
GNEE RAIL supplies E rail clips, SKL rail clips, Nabla types rail clips, KPO rail clips, and other customized types of rail clips,these rail clips are designed with high precision and made up of premium grade spring steel. GNEE has been the largest and most competitive production base of rail clip in China after more than 18 years' rail clip producing experience, and have qualification to tender nationally large and medium scaled rail projects. What's more, our rail clip can be customized according to clients' requirements.
