Hydraulic down-the-hole drill is mainly used for blasting drilling in mines, tunnels, construction, etc, which also can be used in gas leak detection.
◎Features
◆Feathering trigger, easy-start
◆Work long time and lockable switch handle
◆Speed adjustable(0~300rpm)
◆Build-in air compressor for cleaning or water flushing
.◆Drilling diameterΦ45~Φ76mm and drilling depth 3~6m
Specifications
Type |
DHD20 |
DHD30 |
Weight (kg) |
20 |
30 |
Length (mm) |
610 |
660 |
Width (mm) |
410 |
460 |
Flow Range (lpm) |
20-25 |
26-34 |
Working Pressure (bar) |
70-140 |
105-140 |
Depth (m) |
3 |
6 |
Max. dia.(mm) |
Φ50 |
Φ76 |
Size |
7/8 in. x4-1/4 in. Hex. |
1 in. x4-1/4 in. Hex. |
Remark |
air flushing (built-in air compressor) |
water flushing | |