Mining Tricone Bits API 8 1/2" IADC 642 TCI tricone bit for Blast
Hole Drilling
API 8 1/2" Kingdream Newest IADC 437 TCI tricone bit for Oil
Drilling
Newest TCI tricone bit
1. used for oil filed, water well
2. Metal seal or rubber seal
3. used to drill low compressive strength
Mining Tricone Bits
1) used for oil filed, water well
2) metal seal or rubber seal
3) used to drill low compressive strength
Metal-face sealed bearing TCI Bit
Cutting Structure
The durability of premium tungsten carbide inserts is improved with
new formulas and new techniques for insert bit.
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.
Sealed Bearing Structure:
1. Abrasion resistance and seizure resistance of the bearing are
improved and suitable for high rotary speed.
2. The advanced metal seal package will improve the reliability and
durability of bearing seal.
Main Type Available Size:
6",6 1/2",7 1/2",8 1/2",9 1/2",9 5/8",9 7/8",12 1/4",17 1/2", etc.
HJ series bit for oil well drilling
Product predominance:
HJ series bit uses the most advanced sealing technology in the
world, i.e. the metal face seal (MFS). It can perform consistently
in high speed drilling applications, and is the ideal tool for
drilling directional and horizontal wells. In comparison with
conventional rubber O-ring sealed bits, the average working life
(total drilling hours) of HJ series bit under the condition of the
same operating parameters can be increased by 35%.
Available sizes and types of HJ series tri-cone bits:HJ117, HJ127,
HJ137, HJ417, HJ437, HJ447G, HJ517G, HJ527G, HJ537G, HJ547G,
HJ617G, HJ627G, HJ637G, HJ737G,etc.| NO. | TRICONE ROCK BIT SIZE | API THREAD REG.PIN |
| in | mm |
| 1 | 3 3/4 | 95.3 | 2 3/8 |
| 2 | 3 7/8 | 98.4 | 2 3/8 |
| 3 | 4 1/8 | 104.8 | 2 3/8 |
| 4 | 4 1/4 | 108 | 2 3/8 |
| 5 | 4 1/2 | 114.3 | 2 3/8 |
| 6 | 4 5/8 | 117.5 | 2 7/8 |
| 7 | 4 3/4 | 120.7 | 2 7/8 |
| 8 | 4 7/8 | 123.8 | 2 7/8 |
| 9 | 5 1/2 | 139.7 | 3 1/2 |
| 10 | 5 5/8 | 142.9 | 3 1/2 |
| 11 | 5 2/3 | 143.9 | 3 1/2 |
| 12 | 4 3/4 | 146.1 | 3 1/2 |
| 13 | 5 7/8 | 149.2 | 3 1/2 |
| 14 | 6 | 152.4 | 3 1/2 |
| 15 | 6 1/8 | 155.6 | 3 1/2 |
| 16 | 6 1/4 | 158.8 | 3 1/2 |
| 17 | 6 1/2 | 165.1 | 3 1/2 |
| 18 | 6 5/8 | 168.3 | 3 1/2 |
| 19 | 6 3/4 | 171.5 | 3 1/2 |
| 20 | 7 1/2 | 190.5 | 4 1/2 |
| 21 | 7 5/8 | 193.7 | 4 1/2 |
| 22 | 7 7/8 | 200 | 4 1/2 |
| 23 | 8 3/8 | 212.7 | 4 1/2 |
| 24 | 8 1/2 | 215.9 | 4 1/2 |
| 25 | 8 5/8 | 219.1 | 4 1/2 |
| 26 | 8 3/4 | 222.3 | 4 1/2 |
| 27 | 9 1/2 | 241.3 | 6 5/8 |
| 28 | 9 5/8 | 244.5 | 6 5/8 |
| 29 | 9 7/8 | 250.8 | 6 5/8 |
| 30 | 10 1/2 | 266.7 | 6 5/8 |
| 31 | 10 5/8 | 269.9 | 6 5/8 |
| 32 | 11 | 279.4 | 6 5/8 |
| 33 | 11 5/8 | 295.3 | 6 5/8 |
| 34 | 12 | 304.8 | 6 5/8 |
| 35 | 12 1/4 | 311.2 | 6 5/8 |
| 36 | 12 5/16 | 312.7 | 6 5/8 |
| 37 | 13 3/8 | 314.3 | 6 5/8 |
| 38 | 12 7/16 | 315.9 | 6 5/8 |
| 39 | 12 5/8 | 320.7 | 6 5/8 |
| 40 | 13 1/8 | 333.4 | 6 5/8 |
| 41 | 13 1/2 | 342.9 | 6 5/8 |
| 42 | 13 5/8 | 346.1 | 6 5/8 |
| 43 | 13 3/4 | 349.3 | 6 5/8 |
| 44 | 14 1/2 | 368.3 | 7 5/8 |
| 45 | 14 3/4 | 374.7 | 7 5/8 |
| 46 | 15 1/2 | 393.7 | 7 5/8 |
| 47 | 16 | 406.4 | 7 5/8 |
| 48 | 17 1/2 | 444.5 | 7 5/8 |
| 49 | 18 7/8 | 479.4 | 7 5/8 |
| 50 | 20 | 508 | 7 5/8 |
| 51 | 22 | 558.8 | 7 5/8 |
| 52 | 24 | 609.6 | 7 5/8 |
| 53 | 26 | 660.4 | 7 5/8 |
| 54 | 28 | 711.2 | 7 5/8 |
| 55 | 30 | 762 | 7 5/8 |
Main structure features:
1. High precision journal bearing with two thrust faces. Head
bearing surface is hardfaced. Cone bearing is inlaid with friction
reducing alloy and silver-plated. The load capacity and seizure
resistance of the bearing is greatly improved.
2. Precise metal face seal. The two dynamic axial sealing rings of
the sealing system are metal seals, and two highly elastic rubber
energizers are seated separately in head and cone sealing areas
functioning as static seals. Optimized sealing compression ensures
good contact between the two metal sealing faces at all times.
3. Ball locked cone, suitable for high rotary speed.
4. All-rubber compensator is used which can limit pressure
differential and prevent drilling fluid from entering the
lubrication system and this provides the bearing system with good
assurance of lubrication.
5. New type of wear resistant grease that can sustain high
temperature up to 250°C is utilized.
6. High wear resistance and excellent cutting ability of the insert
bit are given by using carbide compacts with high strength and high
toughness in combination with optimized number of compacts and
rows, compact exposure height and special shaped compacts. For
steel tooth bit, the tooth surface is hardfaced with new type of
wear resistant material and thus working life of the cutting
structure is extended while high ROP is also maintained.
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
http://www.roschen.cn ; http://www.roschendrill.com
http://www.roschenmining.com ; http://www.roschendrilling.com
