Name: China Railroad Steel Rails SKL Clip Manufacturers Suppliers Factory - Customized Service - GNEE RAIL
Brand: GNEE
SKU: 286252852

Railroad Steel Rails SKL Clip

Railway Clip is used to fasten the rails to the underlying base plate together with the concrete sleeper. A variety of different types of heavy-duty clips are used to fasten the rails to the underlying baseplate or Sleeper, one common being the E Clip, which is shaped like a stubby paperclip. Another one is the SKL Tension Clamp, which is also the most widely used type all over the world. Others like KPO Clamp and Nabla Clip, also used in different situations.

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Description

Technical Parameters

Thermal Expansion Characteristics & Temperature Adaptation

Model No.	Coefficient of Thermal Expansion (10⁻⁶/℃, 20-120℃)	Thermal Expansion Offset (mm/m, -40℃ to 70℃)	Temperature Range for Stable Performance (℃)	Thermal Stress Release Design	Buckle Pressure Retention at Extreme Temp (%)	High-Temp Oxidation Resistance (120℃, 500h)	Core Thermal Advantage
SKL1-TE	11.8-12.5	≤1.8	-30 ~ 65	Basic Heat Treatment + Limb Flexibility	≥82 (at -30℃); ≥85 (at 65℃)	Surface Oxidation Depth ≤0.05mm	Cost-effective thermal adaptation for inland lines
SKL3-TE	11.5-12.2	≤1.6	-35 ~ 70	Thermal Stress Relieving Grooves	≥85 (at -35℃); ≥88 (at 70℃)	Surface Oxidation Depth ≤0.04mm	Stable performance for urban rail temperature fluctuations
SKL12-TE	11.2-11.8	≤1.3	-45 ~ 75	Gradient Thickness + Heat-Resistant Alloy	≥90 (at -45℃); ≥92 (at 75℃)	Surface Oxidation Depth ≤0.03mm	Ultra-low expansion for high-speed rail thermal cycling
SKL14-TE	11.6-12.3	≤1.5	-40 ~ 68	Enhanced Heat Treatment + Fillet Optimization	≥86 (at -40℃); ≥89 (at 68℃)	Surface Oxidation Depth ≤0.035mm	Thermal shock resistance for heavy-haul impact
SKL21-TE	11.0-11.6	≤1.1	-50 ~ 80	Nickel-Chromium Alloying + Low-Temp Nitriding	≥93 (at -50℃); ≥95 (at 80℃)	Surface Oxidation Depth ≤0.02mm	Extreme temperature tolerance for ballastless track

Packaging & Transportation Specifications & Friction Anti-Slip Performance

Model No.	Standard Packaging Type	Packaging Protection Level	Maximum Stacking Load (kg/stack)	Anti-Rust Packaging Requirement	Friction Coefficient (Clip-Rail Contact)	Anti-Slip Design	Slip Resistance Test Result (≥20kN Load, No Slip)	Core Advantage
SKL1-PF	Woven Bag + Pallet	IP53	≤800	Plain Oiled: PE Film Wrapping	0.45-0.55	Basic Textured Surface	Pass	Economical packaging for short-distance transport
SKL3-PF	Plastic Turnover Box + Vapor-Phase Anti-Rust Paper	IP54	≤1000	Zinc Plated: Vapor-Phase Paper + Sealed Bag	0.50-0.60	Grooved Contact Surface	Pass	Anti-rust packaging for urban rail humid storage
SKL12-PF	Wooden Box + EPE Liner	IP65	≤1200	Dacromet Coated: Vacuum-Sealed + Anti-Rust Paper	0.55-0.65	Knurled Contact Surface	Pass	Shockproof packaging for high-speed rail long-distance transport
SKL14-PF	Carton + Partition + Strapping	IP55	≤900	Hot-Dip Galvanized: Anti-Rust Oil + Sealed Bag	0.52-0.62	Serrated Contact Surface	Pass	Heavy-load packaging for freight line bulk transport
SKL21-PF	Customized Container + Shock-Absorbing Pad	IP66	≤1500	Ceramic Coated: Vacuum Packaging + Desiccant	0.60-0.70	Tungsten Carbide Coated Contact	Pass	Premium protection for ballastless track precision components

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Railroad Steel Rails SKL Clip

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