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

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

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    • DW22-300/100X Mining Single Hydraulic Prop
    • DW22-300/100X Mining Single Hydraulic Prop
    • DW22-300/100X Mining Single Hydraulic Prop

    DW22-300/100X Mining Single Hydraulic Prop

    1. Large work schedule and low cost of safety management: Each specification can replace 2-4 specifications of traditional piston type single props, which reduces the frequency of different types

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    • Product Introduction
    • Product Parameter
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    • Product Comment

    Introduction of DW22-300/100X Mining Single Hydraulic Prop

    1. Large work schedule and low cost of safety management:


    Each specification can replace 2-4 specifications of traditional piston type single props, which reduces the frequency of different types of unit pillars due to the change of working face height and the displacement of the roadway by the top plate and the bottom plate, which reduces the labor intensity of workers. And additional spare quantities for the pillars.


    2. High support strength, good safety and stability:


    The pillars have no bearing welds, and the pillars adopt the suspension technology principle. The suspension force generated by the high pressure liquid directly acts on the top cover end, reaching four-fifths of the working resistance, and the column is only one-fifth of the force, which greatly enhances the support stability and carrying capacity.


    3. the leak is easy to find, safe and reliable:


    Due to the structural improvement of the single hydraulic prop, Avoid the detachment of the top of the pillar. Once the hydraulic props are leaked, they can be directly inspected by the naked eye at the downhole site. The pillars can be replaced at any time. The tighter the sealing surface is, the less likely it is to leak.


    4. long service life, easy operation and maintenance:


    The overall structure is simple, the service life is long, the operation is convenient, the maintenance is easy, and the pillar uplifting and maintenance rate can be greatly reduced.

    Parameter of DW22-300/100X Mining 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 DW22-300/100X Mining Single Hydraulic Prop

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