• API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
  • API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
  • API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
  • API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
  • API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
  • API 7.5in TCI Tricone Drill Bit/Rock Roller Bit

API 7.5in TCI Tricone Drill Bit/Rock Roller Bit

Customized: Customized
Standard: API, ISO 9001
Length: Taper-length
Type: Core Drill Bit
Material: Tungsten Carbide
Usage: Well Drilling
Customization:

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Diamond Member Since 2014

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Basic Info.

Model NO.
7.5in
Number of Shaft
3
Controlling Mode
Artificial
Structure
Deep Hole Drilling
Precision
High Precision
Condition
New
Wob
0.4-1.0kn/mm
Rpm
90-50
Transport Package
Wooden Case
Specification
ISO
Trademark
hengji
Origin
Hebei Hejian
HS Code
82071990
Production Capacity
1000PCS/Month

Product Description

We guaranteed products at a competitive price and high quality. At present, our products have a very good sale in
Domestic and overseas market. We wish to cooperate with you to create a bright future and mutual benefit. Much appreciation for your prompt attention in advance, we are eager to look forward to hearing from you soon.

Rubber sealed sliding bearing bits are sealed by special type "O". Under the normal rotary speed conditions, they can stand high bit pressure. The bore surface of the cone has been treated with special techniaue in order to improve sliding motion of the bearing. And every performance is improved greatly.
1 O-shape seal ring with high saturation butadience acrylonitrile rubber improved the bearing sealed reliability.
2 To adapt high strength and toughness hard alloy teeth, the shock resistance has been increased and the breakage rate has been decreased.
3 The bearing contact surface, neck journal of jaw have been adapted to wear resistance alloy materials, the special craft processing has been applied in the bore surface of the cone which increases the load capability and the working life.
4 Optimized tooth number of cone and height of tungsten carbide tooth which improved the total cutting property and drilling footage.
5 High-performance lubricant grease has been applied in bearing which increased lubricating and protecting.
IADC WOB(KN/mm) RPM(r/min) Applicable Formations
 417/427  0.3-0.9  150-70 very Soft formation with low compressive strength and high drillability,such as clay,soft mudstone,shale,salt,loose sands,etc.
 437/447  0.35-0.9 150-70    very Soft formation with low compressive strength and high drillability,such as clay,soft mudstone,shale,salt,loose sands,etc.
 515/525  0.35-0.9 180-60   very Soft formation with low compressive strength and high drillability,such as mudstone,salt,soft limestone, sands,etc.
517/527 0.35-1.0 140-50 Soft formation with low compressive strength and high drillability,such as  mudstone,salt,soft limestone,sands,etc
535/545 0.35-1.0 150-60  medium soft with harder formation, more abrasive streaks,such as hard shale,mudstone,soft limestone,etc.
537/547 0.4-1.0 120-40 medium soft with harder formation, more abrasive streaks,such as hard shale,mudstone,soft limestone,etc.
617/627  0.45-1.1 90-50   medium hard with higher compressive strength as well as thick and hard streaks,such as hard shale,sands,limestone,dolomite,etc.
637 0.5-1.2 80-40  medium hard with higher compressive strength as well as thick and hard streaks,such as hard shale,sands,limestone,dolomite,etc.
 737  0.7-1.2 70-40   Hard with high abrasiveness such as hard limestone,dolomite,firm sands,etc
827/837  0.7-1.2  70-40  very hard with high abrasiveness,such as quartzite,quaruzite sand,chert,basalt,granite,etc.

API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
API 7.5in TCI Tricone Drill Bit/Rock Roller Bit

API 7.5in TCI Tricone Drill Bit/Rock Roller Bit API 7.5in TCI Tricone Drill Bit/Rock Roller Bit
API 7.5in TCI Tricone Drill Bit/Rock Roller Bit


 
 

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Diamond Member Since 2014

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Management System Certification
ISO9001:2008
OEM/ODM Availability
No