MW type metal prop for the incremental resistance friction prop, for coal mining face supporting the roof with. Frictional prop with initial high resistance and shrinkage characteristics of the larger, but the pillar can soon reach initial working resistance to play a supporting role to the roof. Frictional prop and can also be used for roof subsidence is larger, with periodic pressure of working face.

Photos:

 

Technical parameters

 

Specifications	Height mm	Working resistance (kn)	Weight (kg)	The movable post shrinkage (mm)
MW900/300	800	572	250	300
MW1000/325	1000	672	250	325
MW1200/350	1200	772	250	350
MW1400/350	1400	872	250	350
MW1700/350	1700	1022	250	350
MW2000/350	2000	1172	250	350
MW2300/300	2300	1322	250	350
MW2600/300	2600	1502	200	300
MW2900/300	2900	1652	200	300
MW3150/250((Non standard	3150	1822	200	250
MW3500/250(Non standard)	3500	1972	100	150