W14HH
rail
fastening system
The
W14HH fastening
system is designed for heavy rail traffic
with a maximum permissible axle load of 350
kN ,
Widely used in Europe, Asia, the
Middle East, North America, and Latin
America.
Products
Parameters
Technical
Specification of
W14HH Fastening
system
-
Typical application - heavy haul with
concrete sleepers on ballasted
track
-
Axle load - max.
350kN
-
Speed - max.
160km/h
-
High longitudinal rail resistance - min.
9kN
-
Electrical resistance ≥ 5
kΩ
-
Clamping force for SKL14R (nominal) -
11.5 kN
-
Gauge adjustment in the range of ±10
mm
-
Optionally, the system can be fitted
with an anti-abrasion pad to prevent excessive wear on
the fasteners.
-
All components can be pre-assembled at
the sleeper factory
The complete
W14HH
fastening system
for each sleeper consists of the following
components:
4 pcs screw spike
DHS35-161
4 pcs Flat washer
UIs7
4 pcs Rail clip
SKL14R
4pcs guide plate
Wfp14K700R
4 pcs plastic
dowel
SDU25
2 pcs rail pad
Zw141/175/7
W14HH type rail fastening
system is designed for heavy haul rail with a maximum
acceptable axle load of 350 kN.
One complete set includes 4 pcs rail clips SKL14R ,4 pcs
sleeper screws DHS35 with flat washer UIs7, 4 pcs guide
plates Wfp-12 700R, 4 pcs plastic dowels SDU25, 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
|