About Small down-the-hole drilling rig drilling video collection
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6 FAQs about [Small down-the-hole drilling rig drilling video collection]
What is a down the hole drilling rig?
Down the hole drilling rig is an impact rotary drilling rig. Its internal structure is different from that of a general rock drill.
What is a down-the-hole drilling machine?
The down-the-hole drilling machine is suitable for large-diameter blast hole rock drilling operations in small and medium-sized mines, road construction, water conservancy, and stonework, as well as drilling anchor holes in slope support, tunnel support, and foundation pit support. The main drilling object is a rock formation.
How does a down-the-hole drill work?
In down-the-hole drilling a drill rod is fitted with a hammer at its lower end. The hammer, which is mounted on the drill bit, is activated through the addition of compressed air and driven into the ground – simultaneously rotating and impacting. A flushing current collects the loosened drill cuttings and conveys them upwards.
How do you drill a rock with a DTH hammer?
This method is mainly applied for hard to very hard rock and/or for penetrating large boulders. 1. Setting the DTH hammer with drill rod and casing on the drilling point. 2. Rotary and percussive drilling of the drill string under compressed air supply. 3. After reaching the final depth, unlocking of the drill rod with DTH hammer and pilot bit.
How does a rotary drilling rig work?
A rotary drilling rig, type LB 20, working with down-the-hole hammer inside a casing. A flushing current conveys the loosened drill cuttings upwards and exits at the upper end of the casing. If you have any further questions, please contact our local sales or service team.
What is ygq-100 DTH drilling rig?
The YGQ-100 DTH drilling rig is a method that uses compressed air as the power to convert compressed air into mechanical force to break rocks. The power part is an air motor. YGQ-100 can be used in the absence of electricity, which is safe and reliable.
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