General Introduction:
Prodrill manufacture Down The Hole DTH Pneumatic Hammers in different sizes ranging from 1 inch to 12 inch, These DTH hammers are made corresponding to DTH Drilling Bits to carry out prevalent objectives. TheseDTH hammers are used in various down the hole operations like bench Drilling. These are valve less hammers with optimized air cycle frequency. These are heavy duty hammers that well at greater depths demanding less air usage, delivering minimum performance loss.
We offer IR hammer, DHD3.5, DHD340a, DHD350, DHD360, DHD380, COP and QL hammer. The optimum range of hole size for blast drilling with DTH is 90mm to 254mm, smaller blast holes are generally drilled using top hammer, and larger holes generally use rotary machines. Our hammer like DHD, COP, QL , SD, Mission, BR, NUMA, Mincon are known fort heir reliability and longevity.
1-12 inch middle-low/high air pressure DTH hammer & button bits,
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling
Eccentric ODEX overburden drilling Equipment, and Symmetix, Concentrix overburden casing drilling system,
Hole opener DTH and thread bit
Rock thread button bit, Shank adapter, coupling sleeves and all kinds of adapters.
Prodrill drill bits Advantages:
Compared with the oversea brands, our advantages are bellowing:
A. Our products can match over 95% against the original products
B. Price are competitive against the famous brands and best quality against the small factory.
Specification: |
External Diameter (mm) |
Connection thread |
Hole rang (mm) |
| Low air pressure DTH hammer CIR type |
50~180 |
CIR** |
55~200 |
| Middle air pressure BR & COP type |
70~110 |
|
85~115 |
3 inch DTH hammer
COP34/QL30 etc |
81 |
API 2 3/8" Reg |
90~110 |
4 inch DTH hammer
COP44/DHD340 etc |
99 |
API 2 3/8" Reg |
110~150 |
5 inch DTH hammer
COP54/Mission50 etc |
125 |
API 2 3/8" or API 3 1/2" Reg |
135~165 |
6 inch DTH hammer
COP64/QL60 etc |
142 |
API 3 1/2" Reg |
152~216 |
8 inch DTH hammer
COP84/SD8 etc |
180 |
API 4 1/2" Reg |
203~305 |
10, 12inch DTH Hammer
NUMA 100, NUMA 125 |
275 |
API 6 5/8 Reg PIN |
305-445 |
Audited Supplier 
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