When your mine width is more than 1.2 M,height is more than 1.4 M,
Our ZWY-40A model machine can go inside mine
From the left picture, you could see that.
Normally, for the mine, we need to leave space for emergency matters, cable lines and ventilating device.
With considering that, our Model ZWY-40A can be apply to the mine or tunnel which section is more than 1.5M*1.5M