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IADC API Carbide High Efficiency Tricone Rock Roller Bits For Exploration
Products Description
Range: Dia. 7 7/8” (200mm) to 12 ¼” (311mm)
Test Data of Our tools:
Locations | Description | Rock hardness | Rock formation | Drilling meters |
Australia | D229-IADC545 | F=8-10 (980-100Mpa) | Gold mine (weathered roc, sandstone) | 14760ft |
Australia | D251-IADC635 | F=10-12 (100-120Mpa) | Hematite | 9800-13000ft |
Australia | D251-IADC545 | F=6-8 below 80Mpa | Coal mine | 23000-26000ft |
Hebei, China | D251-IADC725 | F12-14 (120-140Mpa) | Iron mine | 4900-5250ft |
Applications:
For soft formation (Hardness F=7) with low compressive strength and
high drillability, such as shale, soft limestone, sandstone,
conglomerate, soft dolomite and coal bed, etc
IADC code | 435 |
Bearing Structure | Roller-Ball-Second Thrust-Roller-First Thrust/Sealing, Abrasion-resistance carbide button insert on the bearing surface. |
Circulation type | Jet Air |
Cutting Structure | Inner Rows: Conical |
Pin connection | API 4 1/2" REG |
Nozzel | D18mmx3 interchangeable |
Metric bit diameter | 229mm |
Weight | 50kg |
Bit legs protection: Bit legs protection alloy button insert on the
leg's surface, back and top space build up welding of
abrasion-resistant alloy.
Operating suggestion:
Weight on Bit: 9000-36000lbs
Rotary speed RPM: 120-90 r/min
Air back pressure: 0.2-0.4 Mpa
Quality warranty:
Our products are made of high quality steel and all spares are
inspected strictly before shipping. We have quickly responses for
your complaint and suggestion.
Package:
Using ply-wooden cases and pallet for exporting to protect products
and avoid the damagement during transportation. Also we can
customize package according to your special requests.
Production time:
Generally, Production time is 15 -25 days.
Transportation:
By air, By Express or By sea according to your requests.