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China Manufacturer for Dth Button Bits - Concentric casing system with blocks – Spark Featured Image
  • China Manufacturer for Dth Button Bits - Concentric casing system with blocks – Spark

China Manufacturer for Dth Button Bits - Concentric casing system with blocks – Spark

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In order to give you convenience and enlarge our business, we also have inspectors in QC Team and assure you our best service and product for Reverse Circulation Drill Pipe, Dth Hammer Drill Rig, High Pressure Dth Hammer, Please feel absolutely free to speak to us for organization. nd we believe we will share the best trading practical experience with all our merchants.
China Manufacturer for Dth Button Bits - Concentric casing system with blocks – Spark Detail:

Application

Piling, anchoring, foundation

Component parts

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Operation procedure

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Step1: When drilling starts, the system drives the casing shoe and casing tube move down.
Step2: When reaching the bedrock, lift up the block system, the blocks will closed, reverse rotation and pull out the block system from the hole.
Step3: If the hole have reach the desired depth, finish the drilling and continue other process.
Step4: If you still want to drill deeper, use the conventional DTH bit to drill to the desired depth.

Advantages

Reliable performance, easy to retrieval

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Ralated part list

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Specification of concentric casing system with blocks

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D

 

h

H

C

G

 

 

 

Model

O.D. of Casing Tube (mm)

I. D. of Casing Tube (mm)

Wall thickness of casing (mm)

Guide device max. Dia. (mm)

Reamed Dia.

(mm)

Max. dia. of normal bit (mm)

Qty. of blocks

Hammer Type

Weight（KG）

T185

219

199

10

197

234

185

3

COP64/DHD360/SD6/QL60/M60

61

T210

245

225

10

222

260

210

3

COP84/DHD380/SD8/QL80/M80

88

T240

273

253

10

251

305

240

3

COP84/DHD380/SD8/QL80/M80

96.5

T280

325

305

10

302

350

240

3

COP84/DHD380/SD8/QL80/M80

115

T305

355

325

10

322

380

305

3

DHD112/NUMA120/SD12

214

T365

406

382

12

380

432

365

4

DHD112/NUMA120/SD12

254

T432

480

454.6

12.7

450

505

432

4

TK14

415

T460

508

482.6

12.7

479

534

461

4

NUMA180

630

T510

560

534.6

12.7

530

590

510

4

NUMA180

730

T553

610

584.6

12.7

582

639

553

4

NUMA180

895

T596

660

628

16

625

690

596

4

NUMA180

946

T645

711

679

16

675

741

645

4

NUMA180

1010

T694

762

730

16

726

792

694

4

NUMA240

1595

T744

813

781

16

776

845

744

6

NUMA240

2436

T846

914

882

16

878

946

846

6

NUMA240

2756

T948

1016

984

16

980

1050

948

6

NUMA240

3076

 

Product detail pictures:

China Manufacturer for Dth Button Bits - Concentric casing system with blocks – Spark detail pictures

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Our mission will be to become an innovative supplier of high-tech digital and communication devices by furnishing benefit added structure, world-class manufacturing, and service capabilities for China Manufacturer for Dth Button Bits - Concentric casing system with blocks – Spark , The product will supply to all over the world, such as: Accra, Lisbon, Philippines, Our company insists on the principle of Quality First, Sustainable Development, and takes Honest Business, Mutual Benefits as our developable goal. All members sincerely thank all old and new customers' support. We will keep working hard and offering you the highest-quality products and service.
    • The company can keep up with the changes in this industry market, product updates fast and the price is cheap, this is our second cooperation, it's good.
    5 Stars By Irene from Durban - 2017.08.16 13:39
    The supplier cooperation attitude is very good, encountered various problems, always willing to cooperate with us, to us as the real God.
    5 Stars By Julia from Washington - 2017.04.18 16:45
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