Factory direct sales supply DW type external injection single hydraulic prop

The internal injection single hydraulic prop is a constant resistance prop. When used with a metal hinged roof beam, it is suitable for supporting the roof of general mechanized coal mining working faces in coal mines. It can also be used for end support of comprehensive mechanized coal mining working faces. protection or temporary support.
- The internal injection single hydraulic prop is suitable for roof support and end plate support of coal mine working faces. Due to its large load-bearing capacity, strong anti-eccentric load ability, large working stroke and wide range of use, it It can be applied to thin coal seams, medium-thick coal seams and thick coal seam working faces.
- The scope of application of the internal injection single hydraulic prop
- Coal seam inclination angle: the coal seam inclination angle is less than
- The gently inclined mining working face
,
- Take certain safety measures After taking measures, it can also be used for mining working faces with inclination angles of
-~
-
-.
-, height: no greater than the maximum height of the pillar, that is, the maximum support height of the

- type pillar is
-, and the range of support height variation is generally
-~< br/> -

- The maximum support height of type pillar is
-, and the range of support height variation is generally
- ~
- and so on.
- When the pillar is under pressure, the middle part of the pillar should not be used as the fulcrum of the push jack.
- When used in the blasting mining working surface, measures should be taken to prevent the surface of the live column of the pillar from being damaged. Collapse.
- The working principle of the internally injected single hydraulic prop
- The working fluid of the internally injected single hydraulic prop is
- hydraulic oil
,
- when returning to the column The hydraulic oil in the cylinder flows back to the inner cavity of the live column to form a closed cycle
- No need for a pump station and pipeline system
,
- Few supporting equipment
,
- Low cost
- It can still be used in places without power supply and pumping station
,
- High flexibility, convenient and simple management
- Because the working fluid is a closed cycle
,
- When the prop returns to the column, the hydraulic oil flows back to the inner cavity of the living column
,
- Achieves closed-circuit circulation of the hydraulic oil in the prop itself
,
- Hydraulic oil consumption Rarely
- The prop hydraulic system is a closed system
,
- Hydraulic oil does not spill
,
- Does not pollute the environment
,
- Conducive to environmental protection
,
- And has little impact on working surface production
,
- Better maintains the working surface environment
,
- Labor The conditions are better
- All the valves of the pillar are installed in the inner cavity of the pillar
,
- The possibility of being contaminated by the outside is small
,
- High reliability.
- Introduction to internal injection single hydraulic prop
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- Single hydraulic prop
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- Internal injection single hydraulic prop,
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- Single hydraulic prop,
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- Internal injection single hydraulic prop, etc.
- Parameters of internal injection single hydraulic prop
- Contact person: Li Hua
- Mobile phone
:
- Fax:
:
- Wangwang:
- Email:
@
- Company address: North of Kaiyuan Road, High-tech Zone, Jining City, Shandong
- No.