GM-4.7II Lithium Battery Numerical Control Rail Grinder
GM-4.7II lithium battery numerical control rail grinder is mainly used for the recovery and grinding of welded joints,calendering burrs, rail surface repar, waveform wear, etc. in railway rail maintenance and construction. On the basis of inheriting the technical characteristics of the original model, such as rigid copying transmission mechanism and digital feed control, the matching power of this machine is changed from motor to DC brushless motor.The power source is changed from fuel to lithium battery.It not only has the characteristics of high copying accuracy and polishing efficiency, simple operation and convenient measurement,but also greatly reduces construction noise and avoids air pollution caused by fuel emission.It is conducive to the formation of an excellent and environmentally friendly construction environment.The construction operation is easier, simpler,
faster and more efficient.

Supporting power |
DC brushless motor (4.7 kW) |
Lithium battery capacity |
72Ah |
Single chip microcomputer running speed |
16 MIPS |
LCD display resolution |
128 x 64 DOTS |
Timer instant display resolution |
hours, minutes, seconds |
Timer output resolution |
year, month, day, hour, minute |
Magneto output voltage |
~ 12V |
External charging power supply |
~ 220 V |
Grinding wheel stroke |
59 mm |
Profiling track |
1010 mm |
Deflection angle of profiling |
± 90 ° |
Grinding wheel inching feed accuracy |
0.01 ~0.5 mm (instant setting) |
Working environment temperature |
-40ºC~+70ºC |
Overall dimension of main engine |
1565x550x973 (mm) |
Host mass |
89 kg |








Our Customer and Exhibition




Q1:What's the payment term ?
A1:We accept T/T , L/C , D/P , WEST UNION , CASH , ETC .
Q2:How much deposit should i pay ?
A2:We accept 30% deposit and 70% balance , or we can negotiate .
Q3:What's the delivery time after I pay the deposit ?
A3:According to order quantity , usually for one set we can do delivery within 5-7days after receive deposit .
Q4:What kind of package do you provide ?
A4:We provide standard exporting packing ,using wooden box or carton .
Q5:How can I get the goods ?
A5:We can send you by air or by sea depend on your requirement . We will help find cheapest and safest ship company do send you goods and tell you how long time you can receive as also send you shipping documents . By the way we keep follow the tracking information until you get the goods at your hand .
Q6:Do you have product user in my country ?
A6:Our products have exported to more than 20 countries , some countries have our sales agent ,we can give you contact for you to talk and check with them .
Q7:How long of your machine quality guarantee terms ?
A7:Quality guarantee time is one year(wearing parts excluded).
Q8:Do you provide sample and customized service ?
A8:Yes.