Conventional Down The Hole Hammer 3 Inch HD Series HD35 For Shank
IR3.5
Feature:
1, valveless air distribution. More reliable.
2, simple design of the piston, 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 becayse all the parts are heat
treated.
5, It is easy to disassemble because the top sub, the drive chuck
and the external cylinder are connected by multi-step thread.
Products specifications:
| Shank | Fit IR DHD3.5 shank |
| Length (less bit) | 930mm |
| Outer diameter | 82mm |
| Top sub thread | API 3 1/2" REG pin |
| Weight (less bit) | 25kg (55lbs) |
| Hole range | 90mm-105mm |
| Working pressure | 10-25bar |
| Impact rate at 1.7 Mpa | 28Hz |
| Recommended rotation speed | 25-40r/min |
| Air consumption at 7-14 bar | 159-318 CFM |
DTH bits 90-105mm for above hammers can be available.
Our HD serises DTH hammer specifications:
| DTH hammer type | HD35 | HD45 | HD55 | HD65 | HD85 |
| Length(less bit) mm | 930 | 1005 | 1084 | 1161 | 1300 |
| Weight(less bit) kg | 25kg (55lbs) | 40kg(88lbs) | 77kg(170lbs) | 96kg(210lbs) | 175kg(374lbs) |
| External diameter mm | Φ82mm | Φ99 | Φ125 | Φ146-148 | Φ185 |
| Bit shank | DHD3.5 | DHD340A | DHD350R | DHD360 | DHD380 |
| Hole range(mm) | Φ90-110mm | Φ110-130mm | Φ135-165mm | Φ155-1-203mm | 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 | 1.0-3.0Mpa | 1.0-3.0Mpa |
| Impact rate at 1.5-1.7Mpa | 30Hz | 30Hz | 25Hz | 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 | 6m3/min | 9m3/min | 10m3/min | 15m3/min |
| 1.8Mpa | 9.0m3/min | 10m3/min | 15m3/min | 20m3/min | 26m3/min |
| 2.4Mpa | / | 15m3/min | 23m3/min | 28.5m3/min | 34m3/min |
Quality warranty:
Our hammers are made of high quality steel and all spares are
inspected strictly before shipping. We have quickly responses for
your complaint and suggestion.
About us:
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For more information please contact:
Changsha Sollroc Engineering Equipments Co., Ltd
Tel: 86-731-85551632 Fax: 86-731-85551635
Emai: info@sollroc.com
Skype: jessicaling1982
Skype: yongzhedrill
Website: www.sollroc.com
