Dth Hammer
Application area
All our products, which passed ISO9001 quality management system, are widely used in open pit mining, tunneling, quarrying,transportation construction,engineering, earth-rock excavation, water wells, pile foundation, and civil engineering project etc.We are one of the companies which have the most complete product lines, the most abundant species and the most widely usedproducts in drilling industry.
It is a kind of valveless high air pressure DTH hammer with foot valve.DTH Hammers are faster, more service friendly and longer lasting, compared with most drilling products in the market.
lt has the following advantages
The main features are as following:
1. Valveless air distribution. More reliable.
2. Simple design of the piston.Long life span.
3. More efficient energy transfer, faster drilling speed, lower air consumption and lower oil consumption.
4. Fewer internal parts, simple structure, long life span, less failure and easier to maintain because all the parts are heat treated.
5. Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.
The optimal performance of HWH DTH Hammers includes
1.High productivity
2.Longer service life
3.Low energy consumption
Effiency increase by 20%-30%, which means the higher drilling output will deliver maximum profit for you.
HWH DTH Hammer Types coverage
Technical Data
| Data | HD35A | HD45A | HD55A | HD65A | HD85A |
| Connection thread | API 2 3/8" REG | API 2 3/8" REG | API 2 3/8" REG | API 3 1/2" REG | API 4 1/2" REG |
| Work pressure | 1.0-1.7Mpa | 1.0-2.2Mpa | 1.0-2.5Mpa | 1.2-2.5Mpa | 1.5-3.3Mpa |
| Recommended rotation speed | 30-50 r/min | 30-60 r/min | 30-60 r/min | 30-60 r/min | 30-60 r/min |
| Air consumption | 4m3/min-1.0Mpa | 5m3/min-1.0Mpa | 7m3/min-1.0Mpa | 16m3/min-1.8Mpa | 25m3/min-1.8 Mpa |
| 6.5m3/min-1.5Mpa | 9m3/min-1.8Mpa | 13m3/min-1.5Mpa | 23m3/min-2.4Mpa | 34m3/min-2.4Mpa |
