Blast Hole Drilling Atlas Copco Hammer Bits Antirust 4 Inch Shank M40 Length 1005mm
Convertional Hammer HM Series Down The Hole Hammer 4 Inch Shank M40
Products specifications:
| Shank | M40 |
| Length (less bit) | 1005mm |
| Outer diameter | 99mm |
| Top sub thread | API 2 3/8" REG pin |
| Weight (less bit) | 40kg (88lbs) |
| Hole range | 110mm-130mm |
| Working pressure | 10-25bar |
| Impact rate at 1.7 Mpa | 30Hz |
| Recommended rotation speed | 25-40 r/min |
| Air consumption at 7-14 bar | 176-494CFM |
Advantage:
1.Valveless air distribution, more reliable;
2.Piston with simple but compact design, long life;
3.More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4.Fewer internal parts, simple structure, longer life, less failure and easier to maintain, with the all heat treated parts;
5.Easy to disassemble, thanks for the top sub, drive chuck and external cylinder all are connected by multi-step thread.DTH bits 110-130mm for above hammers can be available.
Our HM serises DTH hammer specifications:
| DTH hammer type | HM30 | HM40 | HM50 | HM60 | HM80 | |
| Length(less bit) mm | 930 | 1005 | 1110 | 1161 | 1300 | |
| Weight(less bit) kg | 25kg (55lbs) | 40kg(88lbs) | 66kg(145lbs) | 96kg(210lbs) | 175kg(374lbs) | |
| External diameter mm | Φ82mm | Φ99 | Φ125 | Φ99 | Φ185 | |
| Bit shank | Mission30 | Mission40 | Mission50 | Mission60 | Mission80 | |
| Hole range(mm) | Φ90-110mm | Φ110-130mm | Φ135-165mm | Φ110-135mm | 195mm-254mm | |
| Connection thread | API 2 3/8" Reg. | API 2 3/8"Reg | API 2 3/8"Reg | API 2 3/8"Reg | API 4 1/2"Reg | |
| Working pressure | 1.0-1.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-2.5Mpa | 1.0-3.0Mpa | |
| Impact rate at 1.5-1.7Mpa | 30Hz | 30Hz | 28Hz | 25Hz | 22Hz | |
| Recommended Rotation speed | 25-40r/min | 25-40r/min | 25-40r/min | 20-30r/min | 15-25r/min | |
| Air consumption | 1.0Mpa | 4.5m3/min | 5m3/min | 7m3/min | 6.0m3/min | 12m3/min |
| 1.8Mpa | 9.0m3/min | 9m3/min | 14m3/min | 10.0m3/min | 22m3/min | |
| 2.4Mpa | / | 14m3/min | 19m3/min | 15.0m3/min | 28m3/min | |
Products photoes
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.