|
IADC
|
WOB
|
RPM
|
Applicable Formations
|
||
|
(KN/MM)
|
(r/min)
|
||||
|
(Bit Dia)
|
|||||
|
116 117
|
0.35~0.8
|
150~80
|
Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk etc.
|
||
|
136 137
|
0.35~1.0
|
120~60
|
Soft to mesium soft formations with low compressive strength and high drillability.such as medium soft shale,hard gypsum,medium
soft limestone.medium soft sandstone soft formation with harder nterbeds,ect. |
||
|
216 217
|
0.4~1.0
|
100~60
|
Medium hard formations with high compressive strength,such as medium soft shale,hard gypsum,medium soft limestone,medium soft
sandstone,soft formation with harder interbeds ect. |
||
|
246 247
|
0.4~1.0
|
80~50
|
Medium hard formations with high compressive strength,such as abrasive shale.limestone,sandstone,dolomite,hard gypsum,marble,ect.
|
||
|
417 437
447 |
0.35~0.9
|
150~70
|
Very soft formations with low compressive strength and high drillability,such as clay,mudston,chalk,gypsum,salt,soft shale,soft
limestone,etc. |
||
|
517 527
|
0.35~1.0
|
140~60
|
Soft formations with low compressive strength and high drillability,such as mudstore,gypsum,salt,soft shale.soft limestone,ect.
|
||
|
537 547
|
0.45~1.0
|
120~50
|
Soft to medium formations with low compressive strength,such as medium soft shale,medium soft limestone,medium soft
sandstone,medium formation with harder and abrasiver interbeds,ect. |
||
|
617 627
|
0.45~1.1
|
90~50
|
Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,ect.
|
||
|
637
|
0.5~1.2
|
80~40
|
Hard formations with high compressive strength,such as sandstone,limestone,dolomite,hard gypsum,marble,ect.
|
||
A: Yes,We are a a professional factory of rock drilling bits in China.
2. How about your products?
A : All our activities are accredited to ISO 9001:2008, both in products and services, at the same time, mature production
technology ensuring the quality satisfy international request.We have many high quality bits.
3.what is the Packaging & Delivery?
A:We used high quality export carton or standard export woodern case
4.what is the time about the delivery?
A: repared to deliver within 1 week, if in stock.
Depends on order quantity, when out of stock,7-30days
Transportation:By sea or air
5. How to order the products?
A: Send the inquiry with detail item description or with Model number. If there is no packing demand we take it as sea-way
packing. If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
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