100% Original Anchor Drill Rig - Down the hole dth sd mission 6” hammer and bit price – TDS
100% Original Anchor Drill Rig - 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:
Sticking for the principle of "Super Quality, Satisfactory service" ,We have been striving for being a superb small business partner of you for 100% Original Anchor Drill Rig - Down the hole dth sd mission 6” hammer and bit price – TDS , The product will supply to all over the world, such as: Chile, America, Belgium, All styles appear on our website are for customizing. We meet up to personal requirements with all products of your very own styles. Our concept is to help presenting the confidence of each buyers with the offering of our most sincere service, and the right product.
By Stephanie from Kuala Lumpur - 2017.03.28 16:34
Superb technology, perfect after-sales service and efficient work efficiency, we think this is our best choice.
By Gloria from Algeria - 2018.09.23 17:37