Active Member
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[China]
Address: Cangzhou, Hebei ,China
Contact name:Anna
Hejian Chuanda Drill Bit Co.,LTD |
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Hole opener bit for 12 1/4inch
We(Chuanda ) can design all the rock reamers (Hole openers ) for both horizontal directional drilling and vertical drilling as your special request,for example center shaft length, thread (screw) type, roller cones (palms) sizes, pilot size, extra projection on the palm ,nozzles , nozzles sizes ,for both replaceable cones and fixed cones hole openers for your whole drilling project .We registered brand
| IADC | WOB (KN/mm) | RPM (r/min) | Applicable Formations |
| 417/437/ 447/415/435 | 0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc. |
| 517/527/515 | 0.35~1.0 | 140~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 537/547/535 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength, such as medium, soft shale, with harder and abrasive interbeds, etc. |
| 617/615 | 0.45~1.1 | 90~50 | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
| 637/635 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
Features
1.Force balanced,resist impact to the blade during high-speed drilling,to make bit work stable.
2.The cutter is high performance to increase the ability of anti-impact and anti-abrasive.
3.Optimal hydraulic desigh,easy to move out the drill cuttings and cooling.
4.Equipped with back reaming teeth.
Any inquiry is welcomed here .
1) How to send money to us ?
We can send you our bank account information after the contract is made .By T/T ,Western union ....
2) What is the MOQ ?
Small trial order is acceptable ,like 1pc,2 pcs....
3) Inspection is possbile ?
Yes, you are welcome to our company at any time or you can make inspection through Third inspection agent ,like "SGS" ,BV and so on .
4) How to transport the bits ?
By sea ,by air ,by DHL,by UPS and so on ....
Do you have any questions ? Please don't hesitate to ask me and you will get the satisfactory response once you contact us .
