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Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Specifications
Brand Name :
ROSCHEN
Model Number :
SECOROC COP44
Certification :
API
Place of Origin :
China
MOQ :
Negotiable
Supply Ability :
10000pcs/M
Packaging Details :
wooden box
Price :
Negotiable
Delivery Time :
5~15days
Description

Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling

Tricone bit Included Steel Tooth (also referred to as milled tooth) bits and Tungsten Carbide Insert (TCI) bits, TCI bits are much more durable than Steel Tooth ones, but carry a higher cost to manufacture. Both these two groups of Tricone Bits are available with

(1) Open Bearing or Sealed Bearing
(2) Roller Bearing or Friction Bearing (Journal Bearing)
(3) Gage Protected or Non-Gage Protected, etc
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling

What are tricone drill bits used for?

1. Tricone drill bits for soft rock formations

Soft rock formations consisting mainly of sand, clay, limestone or shale, are ideal for drilling with mill tooth bits. In the soft rock treatment, depending on the scope of the project and the different duration, you can choose to seal or open the bearing of milling tooth bits. Sealed bearing tricone drill bits last longer, but often cost more because of the precise work required to protect the bearings. Open bearing heads, on the other hand, are not well protected and worn, but are cheap to manufacture. Tricone drill bits designed for soft rock usually have longer protruding teeth, "A" teeth or chisel knobs. In either case, the hole spacing is large, so a soft tricone drill bit can be considered in the design.

2. Tricone drill bits for medium rock formations

If you want to drill calcite, dolomite, hard limestone and some hard shale, you need to design tricone drill bit for medium rock. You may need to better understand why tungsten carbide is the ideal material for the tricone drill bit. It is useful to understand its properties. Tungsten carbide, first discovered in 1927, is a very strong and hard material that enables it to withstand higher speeds, thereby achieving faster drilling speeds. in addition, the tricone drill bit can absorb a lot of heat without damaging the bit. The pitch of the intermediate drill is much smaller than that of the soft drill. In addition, although teeth may have a similar range of shapes, their teeth are less prominent.

3. Tricone drill bits for hard rock formations

Hard rock is tough, and abrasive rock usually includes hard shale, calcite, mudstone, pyrite, granite and quartzite. The difficulty of drilling in this material makes tricone drill bits almost essential. The button has excellent hardness and strength, making it able to withstand very difficult drilling conditions. As with all tricone drill bits, you can choose between sealed and open bearings. Sealed bearing drills provide better anti-wear protection, making them more suitable for use before replacement. Drills designed for hard formations often have fewer protruding teeth. Teeth are short and tight. This greatly reduces the drilling speed compared to soft rock, but if you are drilling hard rock, you have little choice.

Tricone Roller Drill Bits Specifications
Bit Diameter API PIN
(inch) (mm)
3 7/8''~5 1/4'' 98~134 2 3/8''. 2 7/8''
5 5/8''~6 3/4'' 143~171 3 1/2''
7 1/2''~9 1/2'' 190.5~241 4 1/2''
9 5/8''~13 3/4'' 245~350 6 5/8''
14 5/8''~26'' 371~660.4 7 5/8''


IADC CODE SELECTION LIST
IADC WOB RPM Application
(KN/mm) (r/min)
111/114/115 0.3-0.75 200-80 very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
116/117 0.35-0.8 150-80 very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
121 0.3-0.85 200-80 soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
124/125 180-60
131 0.3-0.95 180-80 soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
136/137 0.35-1.0 120-60
211/241 0.3-0.95 180-80 medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds.
216/217 0.4-1.0 100-60
246/247 0.4-1.0 80-50 medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
321 0.4-1.0 150-70 medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble
324 0.4-1.0 120-50
437/447/435 0.35-0.9 240-70 very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone
517/527/515 0.35-1.0 220-60 soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
537/547/535 0.45-1.0 220-50 soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
617/615 0.45-1.1 200-50 medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
637/635 0.5-1.1 180-40 hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble
Note: Above limitts of WOB and RRPM should not be used simultaneously

For more information please contact:

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.com ; http://www.roschen.net

Product tags

drill bits tricone

,

tricone drill bits

,

tricone drill bit
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Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling

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Product Detail
Brand Name :
ROSCHEN
Model Number :
SECOROC COP44
Certification :
API
Place of Origin :
China
MOQ :
Negotiable
Supply Ability :
10000pcs/M
Contact Supplier
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling
Tricone bit 9 7/8 inch Tricone roller rock drill bits used SECOROC COP44 DTH Hammer for Codelco Mining Drilling

ROSCHEN GROUP

Verified Supplier
11 Years
shanghai, shanghai
Since 1921
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Seller
Main Products :
Down The Hole Drilling, Tricone Drill Bit, Diamond Core Drill Bits
Total Annual :
5000-2000000
Employee Number :
100~500
Certification Level :
Verified Supplier
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