Active Member
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[China]
Address: 8#,jianshan road,Tianying drill industrial park, zhuzhou. hunan provice, China
Contact name:
Hunan Tianying Drilling Machine Manufacturing Co., Ltd. |
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Durable And Efficient Cutting Structures Hard Rock Drill Bits OEM
Orders Are Available
Click here for catalogueTCI DRILL BIT.pdf
Advantage:
High quality----strictly act according to the ISO9001 standard, and all bits are manufactured according to strict standards, set forth by the American Petroleum Institute (API).
Propessional Equipment---- No matter raw material selection, or processing technology are selected is the industry leading technical equipment.
61 Years History---- From 1958 to 2019, customers are located all over the world and win a good reputation.
What is Hard Rock Drill Bits
All bits the above are manufactured according to strict standards,
set forth by the American Petroleum Institute (API).
And classified according to characteristics set forth by the
International Association of Drilling Contractors (IADC).
Hard Rock Drill Bit is cut rock by Tungsten Carbide teeth projecting from rolling cutters, which rotate on the drill-bit bearings. Inturn, the drill bit rotates at a high rate, and presses against the bottom hole with a high axial force. The teeth of the rolling cutters roll over the bottom hole and, owing to the large stresses that develop in the area of contact between the teeth and the rock, cut the rock by crushing and chipping. As the hardness of therock increases, the rotation rate decreases and the axial force increases. Destroyed at the mine the rock is removed to the surface by air compressor, mud pump, or a combination of these methods.All bits the above are manufactured according to strict standards, set forth by the American Petroleum Institute (API). And classified according to characteristics set forth by the International Association of Drilling Contractors (IADC).
Working theory of TCI tricone bit
The medium formation TCI tricone bits features aggressive chisel
tungsten carbide inserts on the heel rows and inner rows. This
design provides a fast drilling rate and added cutting structure
durability in medium to medium hard for mations. The HSN rubber
O-ring provides adequate sealing for bearing durability.
Tricone bit is connected with the drill stem and rotates along with
it, and drive cones to pressed on the rock. Each cone rotates round
the axis of its leg and three cones simultaneously revolve around
the bit center. The tungsten carbide inserts on the cone shell
cause the formation to spall under the weight on bit and the impact
load of cone rotating, the debris will be discharged out to hole by
compression air.
The medium formation TCI tricone bits features aggressive chisel
tungsten carbide inserts on the heel rows and inner rows. This
design provides a fast drilling rate and added cutting structure
durability in medium to medium hard for mations. The HSN rubber
O-ring provides adequate sealing for bearing durability.
How to read an IADC Code properly
| First Digit | TOOTH |
| 1 | Steel tooth bits for Soft Formation |
| 2 | Steel tooth bits for Medium Formation |
| 3 | Steel tooth bits for Hard Formation |
| 4 | TUNGSTEN CARBIDE INSERT BITS For varying formation hardness with 4 being the softest and 8 the hardest. |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| Second Digit | FORMATION |
| 1 | 1,2,3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest. |
| 2 | |
| 3 | |
| 4 | |
| Third Digit | BEARING/SEAL TYPE |
| 1 | Standard open bearing roller bit |
| 2 | Standard open bearing roller bit, air-cooled |
| 3 | Standard open bearing roller bit with gauge protection |
| 4 | Sealed roller bearing bit |
| 5 | Sealed roller bearing bit with gauge protection |
| 6 | Journal sealed bearing bit |
| 7 | Journal sealed bearing bit with gauge protection |
| Fourth Digit | ADDITIONAL FEATURES |
| A | Air application |
| R | Reinforced welds |
| C | Center jet |
| S | Standard steel tooth |
| D | Deviation control |
| X | Chisel insert |
| E | Extended jet |
| Y | Conical Insert |
| G | Extra gage protection |
| Z | Other insert shape |
| J | Jet Deflection |
Tianying's Best Service
1. 365×24 Year-round Service,We are committed to year-round 24-hour
service even during holidays.
1. Provide professional technical services, including products
introduction, selecting and problem solution etc.
3. Within 35 Working Days Quick Delivery.
Our Company
Hunan Tianying Drilling Machine Manufacturing Co., Ltd, supplies
tricone drill bits, which are widely used in mining drill. Products
offers a complete line of tricone bits, which using the best raw
material in the market. Reliable steel, tungsten carbide, bearing
and lubrication system, size from 7 7/8”(85.7mm) to 26”(660.4mm)
for use in all formations, Our Tricone Bits are with Sealed
Bearing, Roller Bearing and Gage Protected which can ensure you can
drill more meters.
