OEM/ODM Manufacturer Coal Mining Pneumatic Roof Bolter - DN Single Hydraulic Prop – LONGTOP MINING

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OEM/ODM Manufacturer Coal Mining Pneumatic Roof Bolter - DN Single Hydraulic Prop – LONGTOP MINING Detail:

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DN inner injection single hydraulic prop for the internal structure of the mine for the fluid hydraulic prop, mainly consist by the roof, ventilation valve, cylinder, live cylinder, piston, hand pump, unloading valves, safety valves and handles body and other component parts.

DN inner injection single hydraulic prop plays a big role in the mine roadway support, get the acceptance and use of country’s major coal mines customers , it is simple, easy to use, without liquid injection, the direct use hand crank to complete hydraulic prop lift column and drop column

Application Scope

DN inner injection single hydraulic prop could be applied for coal mining face of the roof support and the end plate supporting the head, because of its large carrying capacity, anti-bias load capacity, large working stroke, using a wide range, so it can be used in thin coal seam, thick coal seam or over thick coal seam.

Working Principle

DN inner injection single hydraulic prop The working fluid is the 5th hydraulic oil, back to the column when the hydraulic oil flow back into the cylinder plunger cavity to form a closed loop; does not require pumping and piping systems, auxiliary equipment, low cost; mains and pumping stations in the absence of local still use, flexibility, easy management and simple; since the working fluid is a closed loop, prop prop hydraulic oil flowing back when the plunger cavity pillar itself to achieve closed loop hydraulic oil, hydraulic oil consumes very little; pillar hydraulic system for the closed system, hydraulic oil does not spill, do not pollute the environment, environmental protection, and face the production of small, well maintained face environment, better working conditions; pillar valve is fully installed in the pillar cavity , the possibility of contamination by outside the small, high reliability.

Introduction

DN31-160/90single hydraulic prop

DN28-200/90inner injection hydraulic prop ,

DN25-250/90 single hydraulic prop,

DN(06,08,10,12,14,16,18)-250/80inner injection hydraulic prop ect.

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OEM/ODM Manufacturer Coal Mining Pneumatic Roof Bolter -
 DN Single Hydraulic Prop – LONGTOP MINING detail pictures


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We persist with the principle of "quality 1st, assistance initially, continual improvement and innovation to meet the customers" for your management and "zero defect, zero complaints" as the standard objective. To great our service, we present the products and solutions while using the very good top quality at the reasonable cost for OEM/ODM Manufacturer Coal Mining Pneumatic Roof Bolter - DN Single Hydraulic Prop – LONGTOP MINING, The product will supply to all over the world, such as: Houston , Leicester , Czech , We will initiate the second phase of our development strategy. Our company regards "reasonable prices, efficient production time and good after-sales service" as our tenet. If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
  • The company's products very well, we have purchased and cooperated many times, fair price and assured quality, in short, this is a trustworthy company!
    5 Stars By Camille from panama - 2015.02.12 14:52
    The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Wendy from Hamburg - 2015.07.12 12:19

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