Effective Rail Fastening System with High-Performance Screw Spike

• Customization: Available
• Warranty: 1-3years
• Customized: Customized
• Model NO.: SKL14HH
• Transport Package: Woven Bags & Pallets
• Specification: SKL14HH
• Trademark: SUYU or customized
• Origin: China
• HS Code: 73029090
• Production Capacity: 100000PCS/Per Day

Product Description

W14HH Rail Fastening System

The W14HH Fastening System is engineered for heavy rail traffic, accommodating a maximum permissible axle load of 350 kN , and is widely used across Europe, Asia, the Middle East, North America, and Latin America.

Product Parameters

Technical Specifications of W14HH Fastening System

• Typical application: heavy haul with concrete sleepers on ballasted track
• Axle load: up to 350kN
• Speed: up to 160km/h
• High longitudinal rail resistance: minimum 9kN
• Electrical resistance: ≥ 5 kΩ
• Clamping force for SKL14R (nominal): 11.5 kN
• Gauge adjustment: within ±10 mm
• Optionally, the system can be equipped with an anti-abrasion pad to minimize wear on fasteners.
• All components can be pre-assembled at the sleeper factory.

The complete W14HH fastening system for each sleeper includes the following components:

4 pcs screw spike DHS35-161
4 pcs flat washer UIs7
4 pcs rail clip SKL14R
4 pcs guide plate Wfp14K700R
4 pcs plastic dowel SDU25
2 pcs rail pad Zw141/175/7

The W14HH type rail fastening system is specifically designed for heavy haul rail, capable of handling a maximum axle load of 350 kN.
One complete set includes 4 pcs rail clips SKL14R, 4 pcs sleeper screws DHS35 with flat washers UIs7, 4 pcs guide plates Wfp-12 700R, 4 pcs plastic dowels SDU25, and 2 pcs rail pads Zw141/175/7.

Technical Parameters

Part name	Item	Technical requirement		Remark
SKL14R clip	Type	Dia.14mm		Application for different rail types
	Material	60Si2Mn		Chemical composition(%): C: 0.57, Mn: 0.75, Si: 1.73, Cr: 0.07P:≤0.015, S: ≤0.006
	Finish	Plain oiled, painting, or upon request		500 hours salt spry test
	Hardness	42-47HRC
	Fatigue life	When clip spring deflection is 9.1mm, swing is 1.42mm, fatigue life is up to 3 million cycles without breaking.
	Standard refers to	DIN17221, GB/T1222
DHS35-161 screw spike	Type	M24x161mm
	Grade	Grade 5.6: 35#		Tensile strength: ≥500Mpa Yield strength: ≥300Mpa Elongation: ≥20% Cold bending: 90 degree without crack
	Finish	Plain oiled, oxide black, zinc plated, hot dip galvanized, Dacromet, Sherardizing		500 hours salt spry test
	Standard refers to	ISO898-1, UIC864-1, and NF F500-50
Flat washer ULS7	Type	Uls7
	Material	Q235
	Finish	Plain oiled, Oxide black, Zinc plated, Hot dip galvanized, Dacromet, Sherardizing		500 hours salt spry test
	Standard refers to	EN10025, EN10139
Plastic dowel SDU25	Type	For different sizes of screw spike
	Material	Reinforced Nylon 6 (PA6)	Density: 1.15g/cm3 Tensile strength: 66.3Mpa Elongation: 31.3% Melting point: 228ºC Insulation resistance: ≥2.8×1012Ω Hardness: ≥114HRR
	Color	Black
Guide plate Wfp14k 700R	Type	UIC54,115RE rail, and size as ordered
	Material	Reinforced Nylon 6 (PA6+30%GF)	Density: 1.39g/cm3 Tensile strength: 165Mpa Elongation: 3.5% Melting point: 226ºC Insulation resistance: ≥1.9×1012Ω Glass fiber content: 30-35% Hardness: ≥114HRR
	Color	Black
Rail pad Zw-141-175-7	Type	UIC54, 115RE rail, and size as ordered
	Material	TPE (Thermoplastic Elastomer )		Density: 1.09g/cm3 Tensile strength: 4.23Mpa Tensile Modulus: 2.97Mpa Melting point: 200-220ºC Shore hardness: ≥40D
	Color	Black