PRODUCTS
Down The Hole (DTH) Hammers
  • Shipping Port :Xiamen Port
  • Original Region :China
  • Packing :IN Wooden case
Product details

We manufacture DTH Hammers in different sizes ranging from 3 to 12. These hammers are made corresponding to Drilling Bits to carry out prevalent objectives. These 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, 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 COP and QL are known fort heir reliability and longevity.




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

DHD3.5, COP34, COP32, QL30, M30, IR3.5

81

API 2 3/8” Reg

90~110

4 inch DTH hammer

DHD340, COP44, M40, SD4, QL40

99

API 2 3/8” Reg

110~150

5 inch DTH hammer

DHD350, COP54, M50, SD5, QL50

125

API 2 3/8” Reg

 or API 3 1/2” Reg

135~165

6 inch DTH hammer

DHD360, M60, SD6, QL60, COP64

142

API 3 1/2” Reg

152~216

8 inch DTH hammer

DHD380, COP84, M80, SD8, QL80

180

API 4 1/2” Reg

203~305

10, 12inch DTH Hammer

SD10, DHD1120, NUMA 100, NUMA 125

275

API 6 5/8 Reg

305-445

15 inch DTH Hammer

DHD1150, SD15, NUMA125

330

API 7 5/8’’ REG

350-660