... easy to operate 3.low price 4.long working life Coal Mining Shaft Sinking Winch 1.high quality2.easy to operate3.low ... scaffold ,water pump ,water pipe, grouting pipe, wind-cone, etc. during sinking operation on vertical shaft of coal ,metal and nonmetallic mine. ... DiaoPan, water pump,, hair dryers, compressed air cylinder, grouting pipe etc tunneling equipment and tension on the rope, could also ...