W30

Fastening System

(For heavy haul rail system)
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Rail Fastening System
  • Rail Fastening System
  • Rail Fastening System
  • Rail Fastening System
  • Rail Fastening System
  • Rail Fastening System
  • Rail Fastening System

W30 type fastening system is designed for heavy haul rail with a maximum acceptable axle load of 26Tonns .

One complete set includes 4 pcs tension clamps SKL30 with greater diameter 14.5mm ,4 pcs sleeper screws Ss35 with flat washer UIs7 , 4 pcs guide plates Wfp30K-12HH , 4 pcs plastic dowels SDU25 , 2 pcs rail pads Zw148-175-7-95 .

Technical Parameters of W30 fastening system
Part name Technique parameter Technical requirement Remark
SKL30 clip Type Dia.14.5mm Application for different rail type
Material 60Si2Mn Chemical composition(%):
C:0.57, Mn:0.75, Si:1.73,Cr:0.07P:≤0.015, S:≤0.006
Finish Plain oiled, color painting, or the other required by customers Offered as ordered
Hardness 42-47HRC
Fatigue life when clip spring deflection is 9.1mm, swing is 1.42mm, fatigue life is up to 3 millions cycles without breaking.
Standard refers to DIN17221, GB/T1222
Ss35-24*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
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
Standard refers to EN10025,EN10139
Plastic dowel SDU25 Type For different size of screw spike
Material Reinforced Nylon 6 (PA6) Density:1.15g/㎝3
Tensile strength: 66.3Mpa
Elongation: 31.3%
Melting point:228℃
Insulation resistance:≥2.8×1012Ω
Hardness:≥114HRR
Color Black
Guide plate Wfp30k-12 Type UIC54,115RE rail, and size as ordered
Material Reinforced Nylon 6 (PA6+30%GF) Density:1.39g/㎝3
Tensile strength: 165Mpa
Elongation: 3.5%
Melting point:226℃
Insulation resistance:≥1.9×1012Ω
Glass fiber content:30-35%
Hardness:≥114HRR
Color Black
Rail pad Zw-148-175-7 Type UIC54,115RE, 50kg rail, rail, and size as ordered
Material TPE (Thermoplastic Elastomer ) TPU (Thermoplastic Polyurethane) Density:1.09g/㎝3
Tensile strength:4.23Mpa
Tensile Modulus :2.97Mpa
Melting point: 200-220℃
Shore hardness: ≥40D
Color Black, white or other color
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