martelo
ما هي ضواغط الهواء المحمولة اللولبية؟
2. Rock drill: used to drill holes with a diameter of 20 ~ 100 mm and a depth of less than 20 meters in rocks above medium and hard. According to its different power can be divided into pneumatic, internal combustion, hydraulic and electric rock drill, of which pneumatic rock drill is the most widely used.
(1) When using the drilling rig to drill, the driver should be placed in the drilling position, so that the front end is against the rock, and the distribution should be careful to let the drilling rig move forward, so that the drill bit touches the rock; When opening the hole, first quietly let the drilling rig drive, when the drill rod is in place in the rock, it is allocated to the full open position.
(1) When using the drilling rig to drill, the driver should be placed in the drilling position, so that the front end is against the rock, and the distribution should be careful to let the drilling rig move forward, so that the drill bit touches the rock; When opening the hole, first quietly let the drilling rig drive, when the drill rod is in place in the rock, it is allocated to the full open position.