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 systemPart 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 |