DW SINGLE
HYDRAULIC PROP

Large carrying capacity, strong anti-eccentric load capacity, large working stroke and wide application range.

MINE SUPPORT

PRODUCT INTRODUCTION

DW SINGLE
HYDRAULIC PROP

DW Single hydraulic prop for seam angle is less than 25 degrees - 35 degrees inclined coal seam mining face,the adaptation of the coal seam roof and floor conditions are: roof pillars behind do not affect the recovery of base should not be too soft, prop depth is not pressed into the floor deterioration of the integrity of the base plate, or should increase the base.

  • In the coal mining face relatively loose cannon when used on the live cylinder coating surface to take protective measures to prevent collapse.

  • With wooden roof beams and pillars or columns used to do, you should replace the column caps cover to prevent damage to wooden beams.

Structure display

When the load exceeds the rated working resistance of the pillar, the high-pressure liquid will open the safety valve in the three-purpose valve, the liquid will overflow, and the pillar will shrink; when the load on the pillar is lower than the rated working resistance, the safety valve will be activated by the safety valve spring. Closed, the liquid stops spilling.

1. Base 2. Oil cylinder 3. Living cylinder 4. Three-purpose valve 5. Locking part 6. Handle body 7. Top cover 8. Wing nut

  • Factory
    direct sales

  • Massive inventory

  • Integrity merchant

  • Support customization

  • After sales service

PRODUCT ADVANTAGES

DW SINGLE
HYDRAULIC PROP

The DW single hydraulic prop has good stability and outstanding technical advantages.
  • The height of the single body support of the top grade coal mining face is raised from 2.5 meters to 3.5 meters.
  • The coal seam under 3.5 meters can achieve the full height of the coal seam.
  • At the same time, it can provide end and advance support for the coal seam under the thickness of the coal seam under the thickness of 4.5 meters.

DW SINGLE HYDRAULIC PROP

Not only meet the requirements of production and operating process conditions, but also the operation is simple and not affected by heat,

Reduce operating costs and reduce maintenance costs
  • Each specification can replace 2~4 traditional single pillars,
  • It reduces the frequency of replacing different types of single pillars due to changes in various factors, thereby reducing manual labor and additional spare numbers of pillars.
DW single hydraulic prop adopts special surface treatment process

The pillar is anti-corrosive and wear-resistant.

And the characteristics of anti-bubble collapse, the working medium uses the neutral water of the coal mine underground to ensure that the working environment and groundwater are not polluted.

OPERATING SPECIFICATIONS

DW SINGLE
HYDRAULIC PROP

Ascending column

⑴. Insert the nozzle of the liquid injection gun into the liquid inlet of the pillar, and make sure to connect the fixed sleeve of the liquid injection gun and the liquid inlet of the pillar to prevent the liquid from injuring people.
⑵. Slowly pull the trigger of the liquid injection gun to allow the liquid to enter the pillar and rise until the pillar supports the top plate.
⑶. The support position of the pillar should be perpendicular to the top plate. Do not face the passage for people to walk safely, so as not to injure people by spraying liquid when the pillar is under pres sure，hang the anti-rewind chain.

Back column

⑴. Insert the withdrawal hook into one end of the unloading port on the pillar.
⑵. The operator should stand in a safe position, move the upward plate to retract the hook, the emulsion in the column will be discharged from the liquid inlet nozzle and drop the column, and then return to the column.
⑶. The pillars that have been returned should be stored on the working surface with their heads up to avoid soiling the cutting.

  • PLUNGER SUSPENSION TECHNOLOGY

  • THREE-PURPOSE VALVE IMPROVES COLUMN STRENGTH

  • THE SEALING POINT IS PERIPHERAL TYPE

PRODUCT
DELIVERY SITE

DW SINGLE
HYDRAULIC PROP

QUALITY ASSURANCE, QUALITY FIRST

PRODUCT
PARAMETER

DW SINGLE
HYDRAULIC PROP

PARAMETER OF DW SINGLE HYDRAULIC PROP

Model Item Max height（mm） Min.Height（mm） Working Stroke（mm） Rated working resistance  KN Weight （Kg） Rated working Pressure MPa Hydraulic pump pressure MPa Setting load KN Cylinder Dia. （mm） Emulsion Liquid
DW06-350/110X 630 400 230 350 25 39.7 15-20 132-176 110 Emulsion containing 1% to 2% M10 emulsified oil
DW08-350/110X 800 490 310 28
DW10-350/110X 1000 595 405 32
DW12-350/110X 1200 700 500 36
DW14-350/110X 1400 810 590 40
DW16-350/110X 1600 920 680 44
DW18-350/110X 1800 1035 765 48
DW20-350/110X 2000 1150 850 52
DW22-350/110X 2240 1280 960 56
DW25-350/110X 2500 1430 1070 60
DW28-350/110X 2800 1600 1200 66
DW31.5-350/110X 3150 1780 1370 74
DW35-350/110X 3500 1960 1540 82
DW38-250/110X 3800 2163 1637 250 88 28.3
DW40-250/110X 4000 2224 1780 96
DW42-250/110X 4200 2330 1880 100
DW45-250/110X 4500 2480 2020 110