| Packaging Details: | wooden box; steel box; or as your requirements |
|---|---|
| Delivery Detail: | within 7-15 days after conform order |
1. TCI tricone bit, TCI tricone bit with sealed bearing , tricone bit, TCI tricone rock bit
1. Cutting Structure
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
2. Gauge Structure
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
3. Bearing Structure
High precision bearing with two thrust faces. Balls lock the cone. Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
4. Seal and Lubrication
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
2. Specification
Size | IADC | Application | Cutting structure
| pressure kN/ mm
| speed r/ min |
6'' | 537 | Median soft formations and harder abrasives sandwich with low low compressive, such as argillite, anhydrite, cotton rock, sandstone, etc. | Big circular arc form of teeth in row, spherical discharge teeth | 0.50- 1.05 | 110- 40 |
• Pictures
3. Other Products You may be Interested in
SIZE | TYPE | |
IN | MM | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
7 7/8 | 200.0 | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
8 3/8 | 212.7 | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
8 1/2 | 215.9 | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
8 3/4 | 222.3 | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
9 1/2 | 241.3 | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
9 7/8 | 250.8 | MD437; MD447; MD517; MD527; MD537; MD617; MD637; MD647 |
12 1/4 | 311.2 | MD437; MD447; MD517; MD527; MD537; MD617 |
Rock formation | Bit type | Bit size | Drilling weight | Rotary speed | ||
mm | inch | N/ mm | r/ mm | |||
Very soft | Soft marl, clays, sands, salts etc. | 1 | 187.3-346.1 | 7 3/8-13 5/8 | 441-735 | 120-50 |
444.5-660.4 | 17 1/2-26 | 196-686 | 90-60 | |||
Soft | Clays, soft shale, marl, sands, salts etc. | 2 | 95.2-174.6 | 3 3/4-6 7/8 | 245-490 | 100-50 |
187.3-346.1 | 7 3/8 13 5/8 | 490-784 | 90-40 | |||
444.5-660.4 | 17 1/2-26 | 196-686 | 60-40 | |||
Medium soft | Shale, marl sandstone, soft limestone etc. | 3 | 95.2-174.6 | 3 3/4-6 7/8 | 245-490 | 90-50 |
187.3-311.1 | 7 3/8-12 1/4 | 490-784 | 80-40 | |||
444.5-660.4 | 17 1/2-26 | 196-686 | 60-40 | |||
medium | Hard shale ; limestone; medium/ hard sandstone etc | 4 | 95.2-174.6 | 3 3/4-6 7/8 | 294-539 | 80-60 |
187.3-241.1 | 7 3/8-9 1/2 | 539-833 | 60-40 | |||
• Pictures

• These types of bits have some common features, as follows
High-strength, high flexibility, high temperature, high wear resistance.
High-precision metal seal.
Locking roller ball, to adapt to high-speed.
The use of high strength high toughness carbide teeth.
Hours in the rotary cone bit with the impact, crushing and shearing the role of broken rock.
Cone bit to adapt to the soft, medium and hard of various strata.
Reasonable price and long working life.
4. Certification: API

5. Packing Information

6. Payment Terms
T/ T and L/ C are acceptable. (30% advanced payment after sign the contranct , then 70% payment after see the B/ L)
7. Transportation

8. FAQ (Frequently Asked Questions)
1) How to order the products?
Answer:
Send the inquiry with detail item description or with Model number.
If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2) About lead time and shipping time?
Answer :
The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
According the distance from china to your port, usually from China to European about 25 days. To West of American 20 days.
3) Can I expect a quality products?
Answer :
Yes. All our activities are accredited to ISO 9001: 2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
9. Pls add these informations in your quiry
1, bits size
2, bits IADC code
3, layer information
4, bits quantity
10. Contact person

It's my pleasure to serve for you , we will be grateful if you could give us more good suggestion!