12 1 4″ Inch IADC 437 Replaceable Oil Single Roller Cones

We are  factory  specializes in drill bits,such as Basis roller cutters,HDD gap opener, tricone bits, PDC bits for water nicely, oil subject, gasoline well,mining,design, geothermal, directional unexciting, and underground basis work all above the planet. Our objective is to sell the high quality merchandise at the least expensive achievable value.

Product show:API roller cone for core barrel,tricone cutters for hdd gap opener,solitary roller cone
Merchandise description:China considerably eastern roller cones for core barrel and hdd gap opener,Sizes variety from 3 7/8 to 36,API certified & In lines of IADC requirements,Elastomer sealed bearing for distinct programs,patent merchandise

One cone little bit is a sort of deceleration little bit, which is the speed of cone is smaller than the velocity of drill, mostly disorderly slicing broken rock. It is suitable for aged nicely sidetracking and deepening the slim hole drilling operation under high rotary pace and drilling pressure. 

1. Its software discipline is extensive, not only suited for facet drilling, and can be employed in deep nicely. 

2. Work torque is reduce than PDC bit in the same drilling strain and development condition. It can decrease the modest measurement gap enlargement buckling troubles, so that steer clear of down gap accidents. 

three. One cone little bit has positive aspects of each three cone little bit and PDC little bit, and make up the negatives of the two. It is more ideal for huge plastic formation than three cone bit, also can be used to tough interlayer which PDC bit can not deal with other intricate formation. 

4. It can realize higher velocity and specific drilling with down hole motor.


core barrel are employed for drilling in cohesive and non-cohesive soil beneath groundwater level. Digga’s drilling buckets are suitable for breaking and ripping hard soil up to medium hard rock. Digga Drilling Buckets boast a hefty responsibility construction and arrive fitted with a Kelly Box (travel hub) to go well with your device. Its design makes it possible for for a handbook hand-operated, or automated opening system to be fitted (for emptying)- For drill rigs fitted with striker plate.
Hefty obligation development with provision for reamer bars
Will come fitted with Kelly Box (generate hub) to suit your device
7 digging configurations from solitary start bladed to rock, as effectively as mixture tooth solutions
Opening mechanism options consist of guide hand-operated
or fully automated (fits drill rigs with striker plate equipped)
Base options incorporate swivel and valve style 
Specialised buckets including rock and earth CZPT
Other tooth choices CZPT upon request


IADC Specification

First Digit(1~eight):
 -1,two, and three designate Steel TOOTH BITS with 1 for comfortable,2 for medium and 3 for hard formations.
-four,5,six,7 and 8 designate TUNGSTEN CARBIDE INSERT BITS for various formation hardness with 4 becoming the softest and eight the toughest.
Next Digit(1~4):
 -1,2,three, and four are more breakdown of formation with 1 currently being the softest and 4 the hardest .
3rd Digit(1~seven):
This digit will classify the bit in accordance to bearing/seal variety-see data on diverse bearing types-and specific guage wear security as follows:
 -one. CZPT open bearing roller little bit.
-2. CZPT open up bearing roller little bit,air-cooled.
-3. CZPT open up bearing roller bit with gauge safety which is described as carbide inserts in the heel of the cone.
-four. Sealed roller bearing little bit.
-5. Sealed roller bearing bit with gauge security on heel  of cones.
-six. Journal sealed bearing bit.
-7. Journal sealed bearing bit with gauge defense on heel of cones.
Function Code:
The subsequent letter codes are employed in the fourth digit position to reveal added characteristics:
A. Air Application
R. Reinforced Welds
C. Heart Jet
S. CZPT Metal Tooth
D. Deviation Control 
X. Chisel Insert 
E. Prolonged Jet 
Y. Conical Insert 
G. Additional Gage Protection 
Z. Other Insert Shape 
J. Jet Deflection 


one. How to get an exact quotation?

Response: Please ship us in depth data as underneath:
-Tricone bits(Diameter, IADC code)

-PDC bits(Matrix or Steel entire body, blades amount, cutter size, and many others)

-Gap opener(Diameter, dimensions of pilot gap, hardness of rocks, thread relationship of your drill pipe, and so forth.)

-Roller cutters(Diameter of cones, design amount, and so forth.)

-Main barrel(Diameter, amount of cutters, link, and many others.)

A simple way is sending us photos .


Apart from above, if feasible remember to offer a lot more information as below:

Drilling depth in vertical properly drilling, Drilling size in HDD, hardness of rocks, Capacity of drill rigs, software(oil/gasoline properly drilling, or water effectively drilling, or HDD, or foundation).


Incoterm: FOB or CIF or CFR, by aircraft or ship, port of vacation spot/discharge.


The a lot more data presented, the a lot more precise quotation will be supplied.


2. What is the top quality handle for your items?

Solution: All of our manufacturing are in strains of API policies and CZPT:2015 strictly, from signing deal , to raw materials, to each and every creation procedures, to product end, to following-sale provider, each procedures and sections are in accordant with regular.


three. About lead time,payment phrases, supply ?

Answer: We always have normal models CZPT in inventory, prompt shipping and delivery is a single of our advantages. Mass production is dependent on quantity of order.

We accept all standard payment terms like L/C, T/T, and so forth.

We are around from ZheJiang airport and ZheJiang (Xihu (West Lake) Dis.g) seaport, transportation from our factory to ZheJiang or ZheJiang only will take one working day, quickly and quite economical inland costs.


four. What is the history of  Considerably CZPT?

Response: The drilling bits business was commenced at 12 months 2003 only for China domestic prerequisite, the title Much CZPT was commenced from calendar year 2009, now Much CZPT has exported to far more than 35 nations and regions. We are one particular of the earliest Alibaba Gold Supplier users in rock bit subject , now we are Gold In addition Member.


5. Do you have Referenced Letters /CZPTmmendation Letters from outdated consumers?

Response: Indeed, we have a lot of referenced letters/advice letters issued by aged clients who would like to share our tales.