OEM API certified mining rock drill tricone bit for wholesales Mining Machine Parts

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Product Overview

Description


API 17 1/2" iadc517 TCI rock tricone drill bit for water well drilling

 

 

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Product Description

Table of classification of formation hardness and bit selection

Roller cone bit IADC code

Formation description

Rock type

compresssive strength (Mpa)

ROP m/h

Recommended type of  diamond bit

111/124

Very soft:sticky soft formation with low compressive strength

Clay Siltstone

Sandstone

<25

>20

S/M1952  1942

116/137

Soft:soft formation with low compressive strength and high drillability

Clay rock

Mart

Lignite

Sandstone

25~50

10~20

S/M1642 1652 1952 

S1963 ,M1642

417 / 527

Medium soft: soft to medium formation with low compressive strength and streak

Clay rock Maril  Lignite

Sandstone

Siltstone

Anhydrite Tuff

50~75

5~15

S 1963 ,1652 1362

M 1953 1662  1375

517/537

Medium: medium to hard formation with high compressive strength and thin abrassive streak

Mudstone

Dark rock

Shale

75~100

2~6

S1652   1362

M 1662 1363 1375

537/617

Medium : hard and dense formation with high compressive strength and medium abrasiveness

Dark rock

Hard shale

Anhydrite

Sandstone

Dolomite

100~200

1.5~3

M1673  1662  

1653  1375

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Detailed Images

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 1. Tungsten Carbide Insert (TCI)   
    High grade tungsten carbide inserts are pressed into accurately pre-machined holes, the exposed ends of the inserts are the cutting working parts.

2. Tungsten Carbide Enhanced Inserts 
Arranging tungsten carbide inserts in heel and gage rows, which greatly increase gage protection ability, also prolong the service lifeit is suitable for abrasive formation drilling. Diamond inserts optional upon requirement.

3. Shirttail Protection  
Widen and thicken hardfacing on shirttail to protect the seal.

4. Head OD Protection  
Special tungsten carbide inserts are arranged on head OD to effectively reduce head wear in very abrasive formations and extend the bit life.

5. Body   
The steel body with high strength after heat treatment

6. Nozzles  
The nozzles is very important part in the life of a bit, bit hydraulics are controlled through these nozzles, it is also heat treatment for more strength and stability

7. Welding  
The three legs welded together with quality electrodes to ensure stability in structure. To further enhance the stability, 
the bit goes through heat treatment to relieve stresses after welding

8. Connection Thread  
Threads are machined with CNC machine to keep a precision and dimension.  A thin layer of heavy duty grease is applied to prevent rust.

 

 

More Products

 21HTB1 (2)application.

Packaging & Shipping

 84563

Company Information

 HTB

 

    

 

 

Contact Us

 

Name:Nina Xie
wechat: +8619965414257
viber/whatsapp: +8619965414257
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