MZ and M series portable valve grinding machine are both for grinding gate vavle,
Valve seat,valve core.
The Difference between M and MZ valve grinding machine are mainly in the grinding disc.
| Item | M-100 | M-200 | M-300 | M-300C | M-600 |
| Grinding Range （mm） | DN20-150mm Offline gate valve globe valve safety valve | Dn80-200mm Grinding Plate selective | DN95-320mm (4"-13") Grinding Plate selective | DN100-400mmGrinding Plate selective | Dn200-600Grinding Plate selective |
| Voltage（V） | 220 | 220 | 220 | 220 | 220 |
| Power（W） | 750 | 1300 | 1300 | 1300 | 1300USA |
| Frequency（HZ） | 50 | 50 | 50 | 50 | 50 |
| Max Grinding Depth（mm） | 250 | 600 | 650 | 850 | 900 |
| Valve sealing face min gap(mm) | 45 | 55 | 60 | 70 | |
| Gross Weight（kg） | 26 | 31.5 | 75 | 80 | 90 |
| Item | MZ-150 | MZ-250 | MZ-600 | MZ-900 | MZ-1200 |
| Grinding Range（mm） | Dia 50-180 | Dia95-270 | Dia220-630Grinding Plate selective | Dia400-960mmGrinding Plate selective | Dia630-1250Grinding Plate selective |
| Voltage（V） | 220 | 220 | 220 | 220 | 220 |
| Power（W） | 750 | 1300 | 1300 | 1300 | 1300USA Milwaukee electron motor |
| Frequency（HZ） | 50 | 50 | 50 | 50 | 50 |
| Max Grinding Depth（mm） | 420 | 600 | 900 | 1500 | 2400 |
| Valve sealing face min gap(mm) | 38 | 45 | 70 | 160 | 180 |
| Gross Weight（kg） | 20 | 31.5 | 60 | 170 | 142 |
The adjustable grinding disc of M series is adjustable planet grinding disc,
It is transmitted by Gear transmission,when Grinding disc is roating with the grinding claw autoroation.make the face being grinded reticulate.the quality of grinding is better,high efficiency.But if you can't operate correctly,the gears are easy to be damaged
The grinding disc of MZ series valve grinder is only for Alumium Disc, Chain transmission ,although the quality of grinding is also good,but M series better.The chains are not easy to be damage.
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