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RailFasteningSystem

RAIL FASTENING SYSTEM

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A rail fastening system is a means of fixing rails to railway sleepers or railroad ties. In general, a complete rail fastening system is consisted of rail anchors, rail tie plates, railroad spikes, chairs, track bolts and other rail fasteners. How to choose the most suitable rail fastening system for your railroad project? I think the overarching principle is the structural stability, which concerns the safety of railroad transportation.

Types of rail fastening systems

With the development of railway technology, various types of rail fastening systems have been designed to meet different requirements. Namely, there are 7 types of rail fastening systems, which include rail spike with base plate above the tie, E-clip Fastening, Pandrol Fast Clip Fastening, Tension Clamp Fastening, Bolt Clamp Fastening, Tack Joint and Chairs Fastening, and Steel Spring Keyed rail in Chair Fastening. These names may vary with different countries and regions.

SKL Clip rail fastening system.

Technical Parameters for ONE unit of SKL Clip rail fastening system

Item included	Pieces required	Material	Size	Note
SKL tension clip	2	60Si2CrA, 60Si2CrA, 38Si7	skl1,skl3,skl12,skl14	Hardness: 42-47HRC 5 millions cycles without breaking. Standard: DIN17221, GB/T1222
Ss35 screw spike	2	Grade 4.6: Q235; Grade 5.6: 35# Grade 8.8: 45#	M24×150mm	Standard: ISO898-1, UIC864-1 and NF F500-50
Flat washer	2	Q235	Uls7	Standard: EN10025, EN10139
Plastic dowel	2	HDPE, Reinforced Nylon 66 (PA66)	For different sizes of screw spike	To insert into concrete sleeper
Guide plate	2	Reinforced Nylon 66 (PA66)	UIC54, UIC60, 50kg rail, 60kg rail, and other sizes as ordered	Customized products available
Rail pad	1	ML08AI		Customized products available

E-Clip rail fastening system

Technical Parameters for ONE unit of E-Clip rail fastening system

Item included	Quantity	Material	Size	Remark
E clip	2	60Si2MnA, 60Si2CrA	Dia. 16mm,18mm or 20mm (E1809, E2006,E2007,E2009,etc	Hardness: 44-48HRC
				Toe Load: Dia.16mm: 500-700kgf; Dia.18mm:750-900kgf; Dia.20mm:1100-1400kgf
				Fatigue life: 5 millions cycles without breaking
				Standard: DIN17221, BS970, GB/T1222
Shoulder	2	QT500-7, QT450-10	For UIC54, UIC60, 115RE, BS80lbs, BS100lbs, 50kg rail, 60kg rail, etc.	Note: Hardness of E-clip is 44-48HRC; Toe Load for E-clip is 500-700kgf (Dia.16mm); 750-900kgf(Dia.18mm); 1100-1400kgf(Dia.20mm); Fatigue life of E-clip is 5 millions cycles without breaking DIN17221, BS970, GB/T1222 qualified E-clip
Rail pad	1	HDPE, rubber or EVA
Insulator	2	Reinforced Nylon 66 (PA66)

KPO Clamp rail fastening system

Technical Parameters for ONE unit of KPO Clamp rail fastening system

Item included	Pieces required	Material	Type	Note
KPO clamp	2	Q235	KPO3,KPO6,KPO9	Srandard:DIN5906
Screw spike	2	Grade 4.6: Q235 Grade 5.6: 35# Grade 8.8: 45#	M24×150mm M24 ×160mm M24 ×180mm	Standard: ISO898-1, UIC864-1 and NF F500-50
HS bolt	4	Grade4.6: Q235 Grade5.6: 35# Grade8.8: 45#	HS26, HS32	Diameter: 22mm or 24mm. Length: 55mm, 65mm, 75mm, 90mm
Hex nut	2	Grade 5: 35# Grade 8: 45#	As customized	Standard: DIN985
Double coil spring washer	2	65Mn	As customized	Standard: UIC864-3
Base plate	1	Casting iron QT500-7, QT450-10, or forging low carbon steel or high carbon steel	UIC54,UIC60, 50kg rail, 60kg rail,S49 in ordered size	Standard: UIC864-6

Nabla Clip rail fastening system

Technical Parameters for ONE unit of Nabla Clip rail fastening system

Item included	Pieces required	Material	Size	Note
Nabla clip	2	60Si2MnA, 60Si2CrA	4mm or 4.5mm thick	42-47HRC 3 million times without breaking; Application for different rail type
Insulator	2	Reinforced Nylon 66 (PA66)		Density:1.3-1.45g/cm3 Tensile strength:≥170Mpa Elongation:≤4.4% Bending Strength:≥250Mpa Impact Strength(No gap):≥80KJ/m2 Melting point:250-270℃ Insultion resistance:≥1X108Ω Glass fiber content:30-35% Hardness:≥110HRR
Screw spike	2	Grade5.6:35#	UIC54,UIC60,50kg rail,60kg rail	Tensile strength:≥500Mpa Yield strength:≥300Mpa Elongation:≥20% Cold bending:90 degree without crack
Spring washer	2	ML08AI	18.25x34x78mm	Chemical composition(%): C:0.05-0.10, Mn:0.30-0.60, Si:≤0.1, Cr:≤0.2, P:≤0.035, S:≤0.035