Audited Supplier
Customized
API
Well Drilling
ISO
Steel Tooth Bit, TCI Bit
Sealed Bearing
Soft, Medium Soft, Hard, Medium Hard, Very Hard
Blue or Red
HJ
Wooden Case
according requirement
China
8207191
Product Description
| HENGJI BIT SPEC | IADC CODE 537 | |
| Diameter | 11 5/8"(295.3mm) | |
| Tooth Type | TCI | |
| Bearing Type | Elastomer sealed bearing | |
| Circulation Type | Mud fluid | |
| Thread Connection | 6 5/8 API REG PIN | |
| Nozzle | three jet nozzles | |
| Gauge Protection | Available | |
| Shirttail Protection | Available | |
| Operating Parameters | ||
| RPM(r/min) | 120~50 | |
| WOB(KN) | 0.45~1.0 | |
| Formations | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. | |
| Application | water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc | |
- Journal bearing. Hardfaced head bearing surface.Inne hole of ocne is silve-plated.The load capacity and seizure resistance of the bearing is greatly improved.
- O ring seal is mode of more wear resistant and high saturated buna-N with the increased seal section and precisely designed scaling flange in the cone sealing ares has increased the reliability of the seal.
- All rubber compensator is used which can limit pressure differential and prevent drilling fluid from entering the lubrication system and thi provides the bearing system with good assurance of lubrication.
- High weat resistance and excellent cutting ability pf the insert bit are given full play bu using carbide compacts of high strength and high toughness in comnination with optimized compact numbers and rows, the exposure height and special shaped compacts. For steel tooth tricone, the tooth surface is hard taced with new type of wear resistant material and thus has extended working life of the cutting structure while still maintaining high ROP.
Tricone rock drilling bit Features
Bearing StructureHigh precision journal bearing with two thrust faces. Ball locked 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, and suitable for high rotary speed.
Cutting Structure
Reinforcing the comprehensive mechanical properties of cutting tooth by using high quality tungsten carbide inserts of new formula and new techniques of insert bit.
Gauge Structure
The multiple heel position with gauge trimmer on the heel, tungsten carbide and hardfacing on the shirttail, strengthened spear point will enhance the gauge protection.
Overview of Tricone Bit
Tricone bit is mainly used in drilling, exploration, petroleum and trenchless as pilot bit.According to cutting material, Tricone bit can be divided into TCI bit and Steel tooth Bit.
TCI bit adopts high-strength and high-toughness hard alloy teeth, optimized design of tooth row number, tooth number, tooth exposure height, and unique alloy tooth shape, giving full play to TCI bit's high wear resistance and excellent cutting ability.
New wear-resistant material is applied to weld the tooth surface of the Steel tooth bit, which can maintain the high penetration rate of the Steel tooth bit and improve the life of the cutting tooth of the bit.
According to the type of bearing, the tricone rock bit can be further divided into metal seal bearing and rubber seal bearing.
| IADC | WOB (KN/mm) | RPM (r/min) | Applicable Formations |
| 114/116/117 | 0.3~0.75 | 180~60 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, etc. |
| 124/126/127 | 0.3~0.85 | 180~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 134/135/136/137 | 0.3~0.95 | 150~60 | Soft to medium formations with low compressive strength and high drillability, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 214/215/216/217 | 0.35~0.95 | 150~60 | Medium formations with high compress strength, such as medium soft shale, hard gypsum , medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc. |
| 227 | 0.35~0.95 | 150~50 | Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble,etc |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
| IADC | WOB (KN/mm) | RPM (r/min) | Applicable Formations |
| 417/437/ 447/415/435 | 0.35~0.9 | 150~70 | Very soft formations with low compressive strength and high drillability, such as clay, mudstone, chalk, gypsum, salt, soft limestone, etc. |
| 517/527/515 | 0.35~1.0 | 140~60 | Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc. |
| 537/547/535 | 0.45~1.0 | 120~50 | Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc. |
| 617/615 | 0.45~1.1 | 90~50 | Medium hard formation with high compress strength, such as hard shale, limestone, sandstone, dolomite. etc |
| 637/635 | 0.5~1.2 | 80~40 | Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc. |
| Note: The upper limits of WOB and RPM in above table should not be used simultaneously. | |||
| Popular models | |
| size | IADC CODE |
| 4 1/2''(114.3mm) | 115 117 127 217 417 437 517 537 637 |
| 4 3/4''(120.7mm) | 115 117 127 217 417 437 517 537 637 |
| 5 7/8''(149mm) | 115 117 127 217 417 437 517 537 637 |
| 6''(152mm) | 115 117 127 217 417 437 517 537 637 737 |
| 6 1/2''(165mm) | 115 117 127 217 417 437 517 537 617 627 637 737 |
| 7 1/2''(190mm) | 115 117 127 217 417 437 517 537 617 627 637 737 |
| 7 7/8''(200mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 8 1/2''(215.9mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 8 3/4''(222.3mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 9 5/8''(244.5mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 9 7/8''(250.8mm) | 115 117 127 137 217 417 437 517 537 617 627 637 737 837 |
| 11 5/8''(295.3mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 12 1/4''(311.1mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 14 3/4''(374.7mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 15 1/2''(393.7mm) | 115 117 127 217 417 437 517 537 617 627 637 737 837 |
| 17 1/2''(444.5mm) | 115 117 127 217 237 417 437 517 537 617 637 |
| 20''(508mm) | 115 117 127 217 237 437 517 537 637 |
| 22''(558.8mm) | 115 117 127 217 437 517 537 637 |
| 24''(509.6mm) | 115 117 127 217 437 517 537 |
| Packaging |
| Wood Box Fumigation Tray if necessary Other special package can be applied according to customer's need |
| Delivery |
| Prepared to deliver within 1 week, if in stock Depends on order quantity, when out of stock Transportation:By sea or air |
Hejian Hengji Bit Manufacture Co.,LTD is specialized in manufacturing high quality rock bit since 2001,especially for tricone bit,PDC bit,hole opener,single cone bit and drag bit.With advanced CNC machines and R&D team and on-time delivery. we have kept our clients ahead of schedule and under budget by providing the highest quality tools at the best possible prices .
We ship to more than 40 different countries and serve industries such as Oil & Gas, water well , Construction,Mining, Horizontal Directional Drilling (HDD), Geothermal and Environmental. Our experienced staff is here to assist you with everything from choosing the right bit to shipping around the globe.
Our goal is to provide our customers with the best quality tools, accessories and service in the industry. We are supported by many years of experience, trained professionals and a full machine shop. Reduce the cost ,Speed the drilling ,Guarantee the safety is always our aim. We have been always insist on"Hengji bit,focusing on quality"
--The first-class engineers of tricone bits and PDC bits
--Advanced technology and Equipment, International standard.
--R&D center for rock drilling tools, high precision CNC machines, SGS&ISO Certified.
--10+ Years & 40+ Countries service experience.
--Optimized solutions for various of requirement.
--Advanced technology and Equipment, International standard.
--R&D center for rock drilling tools, high precision CNC machines, SGS&ISO Certified.
--10+ Years & 40+ Countries service experience.
--Optimized solutions for various of requirement.
FAQ
1. Is your company a distributor or a manufacturer?
A: Yes,We are a a professional factory of rock drilling bits in China.
2. How about your products?
A : All our activities are accredited to ISO 9001:2008, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.We have many high quality prducts (https://hb-bits.en.made-in-china.com/) .
3.what is the Packaging & Delivery?
A:We used high quality export carton or standard export woodern case
4.what is the time about the delivery?
A: repared to deliver within 1 week, if in stock.
Depends on order quantity, when out of stock,7-30days
Transportation:By sea or air
5. How to order the products?
A: 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.
6.What is the website about your factory?
A:Our website is: https://hb-bits.en.made-in-china.com/
