12 1/4"IADC537 tri tricone bit for mining
Basic Info.
| Model NO.: | 12 1/4" ( 311mm ) IADC537 |
|---|---|
| Certificate: | ISO |
| Type: | Petroleum Drilling Machine |
| Usage: | Oil (Gas) Production Machinery |
| Export Markets: | Global |
Product Description
1). Size from 3 7/8" to 26"
2). Covers almost all IADC code.
3). ISO 9001: 2008 & API spec7-1
4). Good quality and after-sale service
1>Cutting Structure
The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.
2>Gauge Structure
Multiple gauge protection with gauge trimmers on the heel of 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. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.
4>Seal and Lubrication
Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
5>Product Application
It can receive high WOB in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.
Please specify the following on enquiry,
Bit diameter
IADC code
Bearing type
Drilling formation
Thread Connection
2). Covers almost all IADC code.
3). ISO 9001: 2008 & API spec7-1
4). Good quality and after-sale service
1>Cutting Structure
The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.
2>Gauge Structure
Multiple gauge protection with gauge trimmers on the heel of 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. Ball lock the cone. Hardfaced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved.
4>Seal and Lubrication
Premium O-ring, Optimal seal compression and curved seal structure can enhance the seal performance. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
5>Product Application
It can receive high WOB in the conventional drilling. It is suitable for various formations by matching cutting structure with different tooth shape, tooth density and tooth exposure height.
Please specify the following on enquiry,
Bit diameter
IADC code
Bearing type
Drilling formation
Thread Connection
| Size | 12 1/4" (311.2mm) |
| IADC | 537 |
| Bearing Type | Elastomer sealed journal bearing |
| Thread Connection | 6 5/8 reg pin |
| WOB(KN/mm) | 0.35~1.0 |
| RPM(r/min) | 140~60 |
| Applicable Formations | Soft formationswith low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| Circulation system | Mud pump |
| Available sizes: | |
| 60mm, 65mm, 76mm, 93mm, 95mm, 98mm (3 7/8" ), 101.6mm, 114mm, 118mm, 120mm, 127mm(5" ) 130.1mm(5 1/8” ), 133.3mm (5 1/4” ), 139.7mm(5 1/2” ), 142.8mm (5 5/8” ), 149.2mm (5 7/8” ) 152.4mm (6” ), 155.5mm(6 1/8” ), 158.7mm(6 1/4” ), 161.9mm(6 3/8” ), 165.1mm (6 1/2” ) 190.5mm (7 1/2” ), 193.6mm (7 5/8” ), 200.0mm (7 7/8” ) 212.7mm(8 3/8” ), 215.9mm (8 1/2” ), 222.2mm(8 3/4” ) 241.3(9 1/2” ), 244.4(9 5/8” ), 250.8(9 7/8” ) 269.8(10 5/8” ), 295.3(11 5/8” ) 311.1(12 1/4” ), 346.0 (13 5/8” ), 349.2(13 3/4” ) 374.6(14 3/4” ) 381(15” ), 393.7(15 1/2” ), 406.4(16” ) 444.5(17 1/2” ), 508(20” ), 558(22” ), 609.6(24” ) 660.4(26” ) | |
| Available models: | |
| Steel tooth (IADC code) | 111, 121, 131 117, 124, 126, 127, 136, 137 211, 311 216, 217, 227 |
| TCI (IADC code) | 415, 435, 417, 437 515, 525, 535, 545, 517, 527, 537, 547 615, 625, 635, , 617, 627, 637, 737 512, 522, 532, 612, 622, 632, 732 |
