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Head Designs:
ConvexThe convex face is a strong design for all conditions especially hard abrasive rocks. Good balance of fast drilling and long service life.
Flat FaceThe flat face is an alternative design for all rock conditions especially fractured and fissured rock and changing formations.
Concave
The concave face alternative design for all rock conditions particularly deep hole drilling. Can provide improved hole alignment as a result of the inverted pilot.
No. | Descripation | Model | Match hammer | Front buttons | Gauge buttons | Bit face design | Weight(kg) |
1 | Tapered chisel bit | ZRQ20 | - | - | - | - | 0.09 |
2 | Low pneumatic DTH drill bit | ZRQ90 | ZRC80Z | 2-1217ZL | 6-1420ZL | Convex face | 3.8 |
2-1319ZL | |||||||
3 | ZRQ100 | 3-1217ZL | 6-1420ZL | Convex face | 4.2 | ||
2-1420ZL | |||||||
4 | ZRQ110-A | 4-1217ZL | 6-1420ZL | Convex face | 4.7 | ||
3-1319ZL | |||||||
5 | ZRQ110 | ZRC100Z | 6-1319QL | 7-1422QL | Convex face | 5.8 | |
6 | High pneumatic DTH drill bit | ZRQ115G-A | ZRC100GZRC100G-ADHD340COP44 | 6-1319Q | 8-1422Q | Flat face | 8.2 |
7 | ZRQ115G-AZ | 6-1319Z | 8-1422Q | Flat face | 8.2 | ||
8 | ZRQ115G-B | 6-1319Z | 8-1422Q | Convex face | 8.1 | ||
9 | ZRQ115G-C | 6-1319Q | 7-1624Q | Flat face | 8.2 | ||
9 | ZRQ115G-CW | 6-1319Q | 7-1624Q | Flat face | |||
10 | ZRQ115G-CZ | 6-1319Z | 7-1624Q | Flat face | 8.2 | ||
11 | ZRQ115G-CZW | 6-1319Z | 7-1624Q | Flat face | |||
11 | ZRQ115G-D | 6-1420Z | 7-1624Q | Convex face | 8.1 | ||
13 | ZRQ115G-DW | ZRC100G | 6-1420Z | 7-1624Q | Convex face | ||
12 | ZRQ115G-E | ZRC100G-A | 6-1319Q | 8-1422Q | Flat face | 8.2 | |
13 | ZRQ115G-EZ | 6-1319Z | 8-1422Q | Flat face | 8.2 | ||
13 | ZRQ115G-F | 6-1319Q | 7-1826Q | Flat face | |||
14 | ZRQ140G-A | ZRC130G ZRC130G-ADHD350COP54 | 7-1422Q | 7-1826Q | Flat face | 16.4 | |
15 | ZRQ140G-AZ | 7-1420Z | 7-1826Q | Flat face | 16.4 | ||
16 | ZRQ140G-B | 7-1420Z | 7-1826Q | Convex face | 16.2 | ||
17 | ZRQ152G-A | 8-1422Q | 8-1826Q | Flat face | 16.4 | ||
18 | ZRQ152G | ZRC150GDHD360COP64 | 4-1621Q | 8-1624Q | Concave face | 16.2 | |
4-1422Q | |||||||
19 | ZRQ165G | 11-1621Q | 8-1624Q | Flat face | 24.4 | ||
20 | ZRQ165G-A | 8-1621Q | 8-1826Q | Flat face | 24.3 | ||
21 | ZRQ165G-B | 9-1621Q | 9-1826Q | Flat face | 24.3 | ||
22 | ZRQ178G | 10-1621Q | 9-1826Q | Concave face | 25.5 | ||
23 | ZRQ203G | 11-1621Q | 9-1826Q | Flat face | 30.2 | ||
24 | ZRQ203G-A | 6-1826Q | 9-1826Q | Concave face, | |||
Concentric Casing System With Ring Bits ZRTG140 | |||||||
Outer dia.of casing tube | Inner dia.of casing tube | Outer dia. of ring bit | Inner dia. of ring bit | Outer dia. of pilot bit | Match hammer | Weight(kg) | |
183mm | 163mm | 188mm | 140mm | 160mm | ZRC130G | 60.3 |