Detailed Product Description

  Mining hydraulic prop1.typeφ100DW0622-300/100DW25-250/100DW2835-250/100DW4045-200/100   hearth diameter φ110 DW0625-400/110DW2835-300/110DW4045-250/1102.usage: the constant external fluid resistance-pillar, with hinged metal roof beam oruse as  separate supporting column .Scope of application: 1. Coal seam angle <25 °, 25 35 ° need to take some safety protection measures we now have 15 specifications can apply tofrom 0.5m to 4.5m coal seam3. Working resistance of 200 ~ 250 kN as a pillar of the floor compressive strength ≥ 20 Mpa; 300 ~ 400kN as a pillar of the floor compressive strength ≥ 28 Mpa.Live fuel tank cylinder and the inner surface of fuel tank apply the zinc-nickel alloy technology, improved corrosion resistance, the external surface of the fuel tank used electrostatic Alum treatment. Having the merits of beautiful, corrosion resistance, resistance to drop.  Active CO2 gas cylinder used specific welding machine ,