Friction pillars
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Friction pillars
Other Names:
Introduction Friction generated friction pillars supporting the use of force retractable prop. It hinged roof beams with metal stents constituent monomers, used to maintain control of the top face of roof. Friction pillar for hard floor, no obvious burst
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Product Detail:
Product Introduction
Product Detail:
Introduction
Friction generated friction pillars supporting the use of force retractable prop.
It hinged roof beams with metal stents constituent monomers, used to maintain control of the top face of roof.
Friction pillar for hard floor, no obvious burst, seam angle is less than 25 ° the gently inclined thin and medium thick seam face, to take certain safety measures can also be used 25 ° ~ 35 ° of the coal face.
Three parts:Friction Pillar column locks, cylindrical plunger
Pillars of the early work with friction and high resistance to shrinkage and other characteristics,
pillar set up soon after the beginning of the working resistance, early to play the supporting role on the roof,
but also for roof sinking larger, cyclical to pressure face.
Parameter
Model height(mm) working resistance(KN) weightkg) piston shrink volume(mm) max. min. begin resistance end resistance
MW800/300 800 572 250 300 32 200
MW1000/325 1000 672 250 325 35 300
MW1200/350 1200 772 250 350 38.5 400
MW1400/350 1400 872 250 350 42 400
MW1700/350 1700 1022 250 350 47 400
MW2000/350 2000 1172 250 350 52 400
MW2300/300 2300 1322 250 350 57 400
MW2600/300 2600 1502 200 300 62 400
MW2900/300 2900 1652 200 300 68 400
MW3150/250(Non-standard ) 3450 1822 200 250 72 400
MW3500/250(Non-standard ) 3500 1972 100 150 80 400
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