SKL Elastic Rail Clips
GNEE RAILWAY RAILWAYL manufactures high-performance SKL Rail Clips (SKL Tension Clamps) for heavy haul railways, high-speed rail lines, metro systems, and other demanding track applications. Produced from premium spring steel materials including 60Si2MnA, 38Si7, and 54SiCr6, our SKL clips provide reliable elastic clamping force, excellent gauge retention, and long-term stability under repeated dynamic loads.
Available SKL series include SKL 1, SKL 3, SKL 12, SKL 14, SKL 15, SKL 21, and SKL 30, with typical toe load performance of 8.5 kN to 12.5+ kN per clip depending on fastening system design.
| Type | Diameter(mm) | Weight(kg) | Material |
| SKL 1 | Ø13 | 0.48kg | 60Si2Mn |
| SKL 3 | Ø13 | 0.48kg | 60Si2CrA |
| SKL 12 | Ø13 | 0.53kg | 38Si7 |
| SKL 14 | Ø13 | 0.53kg | 60Si2MnA |
GNEE RAILWAY RAILWAYL provides professional manufacturing, technical documentation, and customized railway fastening solutions based on customer drawings and project requirements, supported by ISO 9001:2015 quality management, EN 10204 3.1 material certificates, and international railway supply experience across North America, Europe, Southeast Asia, the Middle East, and Africa.
Complete SKL Series Tension Clamp Selection Matrix
GNEE RAILWAY RAILWAYL supplies a complete range of SKL Rail Clips (SKL Tension Clamps) for different railway fastening requirements, including individual clips and complete SKL elastic rail fastening assemblies. The suitable SKL model depends on rail profile, sleeper type, track loading conditions, and fastening system requirements.
| SKL Model | Toe Load (Clamping Force) | Applicable Rail Profiles | Fastening System | Typical Applications |
|---|---|---|---|---|
| SKL 1 | ≥ 8.5 kN | UIC54, UIC60, 50kg rail | SKL 1 System / Tie Plate System | Standard ballast track, wooden sleepers, steel ties |
| SKL 3 | ≥ 9.0 kN | UIC50, UIC60, S49 | SKL 3 Fastening System | Conventional passenger railway, industrial sidings |
| SKL 12 | ≥ 10.0 kN | UIC54, UIC60, 60kg rail | Vossloh W12 / KS Fastening System | Heavy haul freight lines, concrete sleeper tracks |
| SKL 14 | 9.5–11.5 kN | UIC60, 115RE, 136RE, 50kg, 60kg rail | Vossloh W14 / System W | Mainline passenger and freight railway, high-speed ballast track |
| SKL 15 | ≥ 10.0 kN | UIC60, 60kg rail | System 300 / Slab Track | High-speed ballastless track, concrete slab track |
| SKL 21 | ≥ 11.0 kN | UIC60, 136RE | Vossloh W21 System | Heavy axle load freight railway applications |
| SKL 30 | ≥ 12.0 kN | UIC60, 60kg, 54E1 | System 300-1 / Metro Fastening System | Metro, subway, urban rail transit, slab track |
For special project requirements, GNEE RAILWAY RAILWAYL can provide custom SKL tension clamps according to customer drawings, technical specifications, or samples, including customized dimensions, material requirements, and surface treatment options.
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Technical Specifications & Material Performance
GNEE RAILWAY RAILWAYL manufactures SKL Rail Clips (SKL Tension Clamps) using railway-grade spring steel materials and controlled manufacturing processes. Each production batch undergoes material inspection and mechanical performance testing to ensure reliable elastic performance under repeated dynamic loading conditions.
| Technical Parameter | Specification |
|---|---|
| Product Type | SKL Rail Clip / SKL Tension Clamp |
| Raw Materials | 60Si2MnA, 60Si2CrA, 38Si7, 55Si7, 54SiCr6, 60SiCr7 high-grade spring steel |
| Hardness Range | 42–47 HRC / 44–48 HRC (depending on project requirements and material specification) |
| Fatigue Performance | Minimum 5,000,000 loading cycles without cracking or permanent deformation |
| Clamping Force / Toe Load | 8.5 kN–13.0 kN per clip (depending on model and fastening system design) |
| Quality Control | Metallurgical inspection, dimensional inspection, hardness testing, and mechanical performance testing |
| Surface Protection Options | Plain Oiled, Black Oxide, Hot-Dip Galvanized (HDG), Dacromet / Zinc Flake Coating, Powder Coating, Sherardizing |
| Corrosion Protection Performance | Zinc Flake Coating options available with 500–1,000+ hours salt spray resistance (depending on coating system) |
Why Choose GNEE RAILWAY RAILWAYL ?
GNEE RAILWAY RAILWAYL supplies complete SKL Rail Fastening Solutions, including SKL Rail Clips, rail pad, and matched fastening components to ensure system compatibility and reliable track performance.
With professional manufacturing capabilities, strict quality control, and railway-grade testing processes, GNEE RAILWAY RAILWAYL provides EN 10204 3.1 material certificates, inspection reports, and customized solutions according to project requirements.
GNEE RAILWAY RAILWAYL supports global railway projects with reliable SKL fastening products, technical documentation, and customized solutions for different rail profiles, sleeper systems, and application requirements.
Frequently Asked Questions (FAQ)
Q1: What is the difference between SKL12 and SKL14 rail clips?
A: SKL12 and SKL14 are elastic rail fastening clips used for concrete sleeper railway systems. The main differences are their clip design, elastic performance, and matching fastening system. The suitable model depends on rail profile, sleeper type, and project requirements.
Q2: Can GNEE RAILWAY RAILWAYL manufacture SKL rail clips according to drawings or samples?
A: Yes. GNEE RAILWAY RAILWAYL provides SKL Rail Clip manufacturing based on customer drawings, samples, and technical specifications, with professional support for production, inspection, and quality documentation.
Q3: What quality documents are supplied with SKL rail clips?
A: GNEE RAILWAY RAILWAYL provides EN 10204 3.1 material certificates, raw material traceability records, hardness test reports, and dimensional inspection reports according to project requirements.
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