Hydraulic roof -cutting prop
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Hydraulic roof -cutting prop
Other Names:
Product Detail： Parameter Rated working resistance kn 784 Rated working for first hydraulic cylindermpa 25 Second cylinder 39 Pump pressure kn 19.6 Supporting force level first cylinder kn 617 second cylinder 392 Max. Height mm 1000 1201 1399 Min
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Product Detail：
Product Introduction
Product Detail：
Parameter
Rated working resistance kn 784
Rated working for first hydraulic cylindermpa 25
Second cylinder 39
Pump pressure kn 19.6
Supporting force level first cylinder kn 617
second cylinder 392
Max. Height mm 1000 1201 1399
Min height mm 552 619 685
working stroke first cylinder mm 228 295 361
Second cylinder 220 287 353
Mining heigh m 0.65-1.0 0.75-1.2 0.8-1.4
Base area cm2 66*50=3300
Bottom pressure mpa 2.37
Roof pressure mpa roof top dia. Mm/pressure ø320/9.97ø250/15.97
Mining surface inclination Angle<15
Caving line per meter kn 523
Working medium 5%m-10或mdt
Emulsified oil emulsion
weight kg 289.4 307.4 325.4
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