High Performance Gt60 Rod - Down the hole dth sd mission 6” hammer and bit price – TDS
High Performance Gt60 Rod - Down the hole dth sd mission 6” hammer and bit price – TDS Detail:
In other applications, like foundation drilling, DTH hammers can be used with single bit in hole sizes up to . 750 mm (30″). With multiple hammer units CD (Cluster drills) drill holes up to 70″ or 1778 mm.
As a rule of thumb, the smallest hole diameter a DTH hammer can drill is its nominal size. A 4 inch hammer will drill a 4 inch (102 mm) hole. The limiting factor is the outside diameter of the hammer, because, as hole diameter reduces, airflow is restricted. Maximum hole size for production drilling is the nominal hammer size plus 1 inch, so for a 4 inch hammer the maximum hole size is 5 inch (127–130 mm).
Choosing the right hammer is largely determined by hole size and type of rock formation. Ideally, the size of the hammer should match the required hole dimension as closely as possible, leaving just enough space for cuttings to evacuate the hole.
Model
|
Thread Connection
|
OD(mm)
|
Rec.Hole Size
|
Shank Style
|
Working Pressure(Bar)
|
CD35
|
API 2 3/8″ Reg
|
φ82mm
|
φ90-φ105
|
DHD3.5 CD35
|
1.0-1.5Mpa
|
CD45
|
API 2 3/8″ Reg
|
φ99mm
|
φ110-φ135
|
Cop44 DHD340
CD45
|
1.0-2.5Mpa
|
CSD4
|
API 2 3/8″ Reg
|
φ99mm
|
φ110-φ135
|
SD4 CSD4
|
1.0-2.5Mpa
|
CQL40
|
API 2 3/8″ Reg
|
φ99mm
|
φ110-φ135
|
QL40 CQL40
|
1.0-2.5Mpa
|
CD55
|
API 2 3/8″ Reg API 3 1/2″ Reg
|
φ125mm
|
φ135-φ155
|
Cop54 DHD350R
CD55
|
1.0-2.5Mpa
|
CSD5
|
API 3 1/2″ Reg
|
φ125mm
|
φ135-φ155
|
SD5 CSD5
|
1.0-2.5Mpa
|
CQL50
|
API 3 1/2″ Reg
|
φ125mm
|
φ135-φ155
|
Cop54 QL50
CQL50
|
1.0-2.5Mpa
|
CD65
|
API 3 1/2″ Reg
|
φ148mm
|
φ155-φ190
|
Cop64 DHD360
CD65
|
1.0-2.5Mpa
|
CSD6
|
API 3 1/2″ Reg
|
φ148mm
|
φ155-φ190
|
SD6 CSD6
|
1.0-2.5Mpa
|
CQL60
|
API 3 1/2″ Reg
|
φ148mm
|
φ155-φ190
|
Cop64 QL60
CQL60
|
1.0-2.5Mpa
|
CD85
|
API 4 1/2″ Reg
|
φ185mm
|
φ195-φ254
|
Cop84 DHD380
CD85
|
1.0-2.5Mpa
|
CSD85
|
API 4 1/2″ Reg
|
φ185mm
|
φ195-φ254
|
SD8 CSD8
|
1.0-2.5Mpa
|
CQL80
|
API 4 1/2″ Reg
|
φ185mm
|
φ195-φ254
|
QL80 CQL80
|
1.0-2.5Mpa
|
CSD10
|
API 4 1/2″ Reg API 5 1/2″ Reg
API 6 5/8″ Reg
|
φ225mm
|
φ254-φ311
|
SD10 CSD10
|
1.0-2.5Mpa
|
CN100
|
API 6 5/8″ Reg
|
φ225mm
|
φ254-φ311
|
NUMA100 CN100
|
1.0-2.5Mpa
|
CSD12
|
API 6 5/8″ Reg
|
φ275mm
|
φ305-φ445
|
SD12 CSD12
|
1.0-2.5Mpa
|
Product detail pictures:
Related Product Guide:
We'll make every effort and hard work being outstanding and excellent, and speed up our techniques for standing during the rank of global top-grade and high-tech enterprises for High Performance Gt60 Rod - Down the hole dth sd mission 6” hammer and bit price – TDS , The product will supply to all over the world, such as: Senegal, Montreal, Canada, As the world economic integration bringing challenges and opportunities to the xxx industry, our company , by carrying on our teamwork, quality first, innovation and mutual benefit, are confident enough to provide our clients sincerely with qualified products, competitive price and great service, and to build a brighter future under the spirit of higher, faster, stronger with our friends together by carrying on our discipline.
By Natalie from Iran - 2017.09.16 13:44
We have been cooperated with this company for many years, the company always ensure timely delivery ,good quality and correct number, we are good partners.
By Athena from Botswana - 2018.09.16 11:31