They apply to mine wells where have methane of coal-dust explosive dangers and are used for drilling MID-hard and bard coal beds. The drills have the advantages of low temp-raising, high efficiency, big power and long service-life, etc.

Models ZMS12/15/18T series electric coal drill are wet type center water-supply electric coal drill that made up by flame-proof motor, reducer, switch and operation system. In order to operational safety, the handle of drill, switch hand and enclosures wind must be made of insulation plastic.