DW Single Adjustable Steel Hydraulic Props
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DW Single
Adjustable Steel Hydraulic Props Profile
DW Single
Adjustable Steel Hydraulic Props is constant resistive pillar, which can match
with a variety of roof beams and also could be used as the primary column.
Mechanized coal mining for coal generally or blasting mining face plate
supporting items are also available for mechanized coal face end support or
other temporary support to use.
DW single
hydraulic prop with metal hinged roof beams for general mechanized coal mining
face gun and mechanized mining face ends with a roof or temporary payment for
coal seam angle is less than 25 ° of face, to take certain measures, also can
be used to dip 25 ° - 35 ° stops. This series of hydraulic prop, good
stability, technical performance advantages prominent, high-grade coal mining
face will be the single support height from 2.5 meters to 3.5 meters, 3.5
meters below the coal mining can achieve one full-height, while for the coal
seam thickness of 4.5 m below provides end face and advance support.
DW Single
Adjustable Steel Hydraulic Props Characteristic
1, Long
working stroke , especially for large height variation face of underground
roof.
2, Apply
inner bore seal bump- resistance in the underground, with a wide range of use.
3, Never
broken. Using friction welding, the weld is not broken.
4, Uses a
new sealing device, remove the DZ-type pillar between the piston and plunger
leakage point, safe and reliable.
5,Level of
support available.
6, High
strength, no bend.
Model
significance
For example
DW25-250/100：
D-Representative
hydraulic prop
W-representatives
out injection type
25 - Maximum
height of the pillar
250 - as the
pillar of the rated working resistance
100 - as the
pillar of the cylinder diameter
DW Single
Adjustable Steel Hydraulic Props Parameter
|
Type
|
Unit
|
DW35
|
DW31.5
|
DW28
|
DW25
|
DW22
|
DW20
|
DW18
|
DW16
|
DW14
|
DW12
|
DW10
|
DW08
|
DW06
|
|
Max Height
|
mm
|
3500
|
3150
|
2800
|
2500
|
2200
|
2000
|
1800
|
1600
|
1400
|
1200
|
1000
|
800
|
600
|
|
Min Height
|
mm
|
2700
|
2350
|
2000
|
1700
|
1440
|
1240
|
1110
|
1005
|
900
|
792
|
685
|
578
|
485
|
|
Working Stroke
|
mm
|
800
|
800
|
800
|
800
|
800
|
760
|
690
|
595
|
500
|
408
|
315
|
222
|
145
|
|
Net Weight
|
kg
|
82.8
|
76.4
|
70
|
58
|
55
|
49
|
47
|
43.6
|
39.9
|
36.3
|
32
|
26.7
|
26.5
|
|
Rated resistance
|
kN
|
150
|
200
|
250
|
300
|
|||||||||
|
Rated Fluid Pressure
|
Mpa
|
19.1
|
25.5
|
31.8
|
38.2
|
|||||||||
|
The First Sustaining Load
|
kN
|
118--157
|
||||||||||||
|
Pump Station Pressure
|
Mpa
|
15or20
|
||||||||||||
|
Column Lifting Speed
|
mm/s
|
>=60
|
||||||||||||
|
Column Descending Speed
|
mm/s
|
>=40
|
||||||||||||
|
Diameter of oil cylinder
|
Mm/s
|
100
|
||||||||||||
|
The Base Area
|
cm2
|
113
|
109
|
|||||||||||
|
Service Substance
|
|
Coaly(MD10 emulgator)emulgator or emulgator 1-2% emuision
|
||||||||||||
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