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1. MG300/710－WD Coal Mining Machine is the chainless electric traction coal mining machine with cutting power for 300kw and traction power for 45lw, which provides two models on machine height for selection, i.e. 1200mm and 1428mm. At the condition of installing 1800mm diameter drum, the coal mining height for the both models of machine may separately achieve 3500mm and 3800.
2. The whole machine is connected by four pull rods, being with higher force and rigidity.
3. The traction method may be selected according to the actual requirements, e.g. one tracts one or one tracts two.
4. Be with module design and wide applicable scope, be capable to match the SGZ730/ SGZ764/ SGZ800/ SGZ830/ SGZ880 type scraper conveyor.
5. All gear, hydraulic pump, hydraulic valve unit, key sealer and principal electric components are imported famous brand products. The system is with high reliability.
6. Integrated rocker arm design.
7. Research and develop the SANY-MGKZ-01 Control System with own patent according to the coal mining features, which is equipped with function on self failures protection as over current, over voltage, short current and current leakage protection and even self diagnosis. Meanwhile, due to the integrity of whole system, it is convenient for whole replacement, thus highly shortening the defects handling time.
8. Adopt international brand current sensor at each III-phase main loop, directly collect the current protective value and perform protection as excess, thus the safety degree is highly improved (in principle, assumed that at the two phases of the three phases be equipped with current sensor, the actual current value at the third phase may be indirectly calculated, but be with shortcomings as not timely and less accuracy. In addition, if only be equipped with current sensor at one phase, it is certainly with the potential safety hazard.)
9. The main controller is the specially-used controller imported from Finland with protective degree for IP 67 (regular work even be set 1 meter below water), high liability and convenient plugging, which may perform regular works at the dusty and vibrating environment even with high temperature for 70℃ and humidity for 95%.
10. The main controller is the specially-used controller imported from Finland with protective degree for IP 67 (regular work even be set 1 meter below water), high liability and convenient plugging, which may perform regular works at the dusty and vibrating environment even with high temperature for 70℃ and humidity for 95%.
11. The craft of rocker arm adopts the special sealing structure. The sealing effects are enhanced, so as to the monitoring effects.
12. Adopt the special internal spray system design, being able to completely separate the oil from water, thus absolutely solve the problem on emulsification of oil liquor resulted from internal leakage.
13. The main DACROTIZING enforced fastening parts adopts special screw thread design to ensure the fixation with great rust prevention capacity, 10 times more than that of common flange bolt, and even 3 times more than that of galvanized bolt (hydrogen embrittlement), thus the linkage is not easy to lose efficacy and appear loose.
14. Hydraulic system adopts the anti-pollution oil filling design.
15. Adopt loaden sensitive multiport valve. The hydraulic system is with less thermal value, thus improving the service life of sealers.
16. The machine is with automatic part unloading functions at the time of lower voltage, being able to reduce the idle power consumption (empty load power of hydraulic system <12%) to the minimum and produce the great cooling capacity, thus the temperature rise for hydraulic oil may be controlled at the level not larger than 30°C. In addition, the problem for over high oil temperature of hydraulic system may be absolutely solved and the liability of hydraulic system is highly improved.
