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.
Detailed introduction
frictional prop
1. Friction pillar of simple structure, convenient operation and maintenance, and metal roof beam combination
2. Can be used for Angle is less than 25 mining face, the use of certain safety measures
Detailed introduction
Specifications
| Height mm | Working resistance (kn) | Weight (kg) | The movable post shrinkage (mm) | ||
MW900/300 | 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 | 3150 | 1822 | 200 | 250 | 72 | 400 |
MW3500/250(Non standard) | 3500 | 1972 | 100 | 150 | 80 | 400 |
