Shandong China Coal Mining Single Hydraulic Props Co., Ltd.

Shandong China Coal Mining Single Hydraulic Props Co., Ltd.

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    • DW28-250/100X Coal Mine Single Hydraulic Prop
    • DW28-250/100X Coal Mine Single Hydraulic Prop
    • DW28-250/100X Coal Mine Single Hydraulic Prop

    DW28-250/100X Coal Mine Single Hydraulic Prop

    Using the principle of plunger suspension technology, the suspension force reaches four-fifths of the working resistance, and the body is only one-fifth. The stability and safety of the single pillars

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    • Product Introduction
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    • Product Comment

    Introduction of DW28-250/100X Coal Mine Single Hydraulic Prop

    Using the principle of plunger suspension technology, the suspension force reaches four-fifths of the working resistance, and the body is only one-fifth. The stability and safety of the single pillars are greatly improved, and the support height, load bearing capacity and load resistance of the pillars are also improved. Moreover, the arc welding method is no longer used on the movable column, which avoids accidents such as the emergence of the top due to the fracture of the weld seam, and ensures the life safety of the miner.

    There is no piston in the cylinder, and there is no problem of internal leakage. According to different pillar specifications, the overall weight of the suspension hydraulic prop is reduced by more than 15-13% than that of the piston hydraulic prop, even lighter than the alloy pillar, and the bearing capacity is improved. 25%, the use range has been expanded by 200%, the minimum height of the pillars is greatly shortened, and transportation is convenient.

    Parameter of DW28-250/100X Coal Mine Single Hydraulic Prop

    Model

    project

    Max height

    mm

    Min height

    mm

    workingstrokemm

    Rated working resistance

    KN

    weight

    Kg

    Rated working pressureMPa

    Pump station pressure

    MPa

    Initial support KN

    Bore diametermm

    Work liquid

    DW06-300/100X

    630

    400

    230

    300

    21

    28.3

    34

    15-20

    108.5-144.7

    100

    Emulsion containing 1% to 2% M10 emulsified oil

    DW08-300/100X

    800

    490

    310

    24

    DW10-300/100X

    1000

    595

    405

    27.5

    DW12-300/100X

    1200

    700

    500

    31.5

    DW14-300/100X

    1400

    810

    590

    34.5

    DW16-300/100X

    1600

    920

    680

    38

    DW18-300/100X

    1800

    1035

    765

    42

    DW20-300/100X

    2000

    1150

    850

    46.5

    DW22-300/100X

    2240

    1280

    960

    51

    DW25-250/100X

    2500

    1430

    1070

    250

    56

    DW28-250/100X

    2800

    1600

    1200

    62

    DW31.5-200/100X

    3150

    1780

    1370

    200

    69

    27.6

    DW35-200/100X

    3500

    1960

    1540

    75

    Pictures of DW28-250/100X Coal Mine Single Hydraulic Prop

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