311mm IADC 517 Sealed Bearing Three Roller Chisels Bit

• Customization: Available
• Customized: Customized
• Standard: API
• Usage: Well Drilling
• Certification: ISO
• Model Number: Steel Tooth Bit, TCI Bit
• Bearing Type: Sealed Bearing
• Suitable Formation: Soft, Medium Soft, Hard, Medium Hard, Very Hard
• Color: Blue or Red
• Transport Package: Wooden Case
• Specification: according requirement
• Trademark: HJ
• Origin: China
• HS Code: 8207191
• Production Capacity: 500

Product Description

Product Description

   

HENGJI BIT  SPEC		IADC CODE 517
Diameter	12 1/4 (311.1mm)
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)	140-60
WOB(KN)	0.35-1.0
Formations	Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft limestone, etc.
Application	water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc

Detailed Photos

 


 

 

Overview of Tricone Bit

Introducing our high-performing tricone drill bit, designed for a range of drilling projects including oil and gas well drilling, geothermal well drilling, water well drilling, and trenchless drilling. Made with durable materials and advanced engineering, this tricone drill bit is built to withstand tough drilling conditions and deliver exceptional results. Its precision-cut teeth and optimized design ensure efficient and seamless drilling, making it an ideal choice for professionals in the industry. Trust our tricone drill bit to deliver the performance you need for your drilling projects.

 

Tricone rock drilling bit Features

  Bearing Structure
High 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.

 

Main products
tricone bit(mill tooth and tungsten carbide insert tricone bit)
PDC bit(matrix body and steel body PDC bit)
hole opener(HDD rock reamer,PDC hole opener,barrel reamer,etc)
drag bit(step drag bit,PDC drag bit,chevron drag bit,etc)
accessories(single cone,bit breaker,nozzle ,etc)

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Product Parameters

 

it Size		Bit Type
in	mm
37/8	98	HR537	HR637
45/8	117.5	HR117	HR115	HR537	HR637	HR737
43/4	120.7	HR117	HR115	HR537	HR637	HR737
57/8	149.2	HR217	HR537	HR547	HR637
6	152.4	HR117	HR217	HR237	HR517	HR547	HR637	HR737
61/4	158.8	HR127	HR237	HR517	HR527	HR547	HR637	HR737	HR837
61/2	165.1	HR127	HR217	HR517	HR537	HR547	HR637	HR737	HR837
63/4	171.5	HR117	HR447	HR537	HR547	HR617	HR627	HR637	HR737	HR837
71/2	190.5	HR127	HR217	HR517	HR517	HR527	HR527	HR617
77/8	200	HR177	HR437	HR517	HR527	HR537	HR547	HR547	HR617	HR627	HR637
81/2	215.9	HR117	HR127	HR137	HR217	HR247	HR437	HR447	HR517	HR527	HR537
		HE547	HR617	HR627	HR637	HR737	HR837
83/4	222.3	HE116	HR437	HR517	HR537	HR627
91/2	241.3	HR117	HR127	HR417	HR437	HR517	HR527	HR537	HR547	HR617
95/8	244.5	HR117	HR127	HR137	HR217	HR437	HR517	HR527
97/8	250.8	HR117	HR127	HR137	HR217	HR417	HR437	HR517	HR527
105/8	269.9	HR127	HR217	HR437	HR517	HR547
115/8	295.3	HR117	HR127	HR137	HR217	HR147	HR517	HR537	HR547
121/4	311.2	HR117	HR127	HR137	HR417	HR437	HR517	HR527	HR537
		HR547	HR617	HR627	HR637
135/8	346.1	HR117	HR127	HR235	HR437	HR517	HR527	HR537	HR637
133/4	349.3	HR437	HR517	HR537	HR617	HR627	HR637	HR737	HR117	HR217
143/4	374.7	HR117	HR127	HR137	HR517	HR527	HR537	HR547	HR617	HR637
151/2	393.7	HR127	HR217	HR517	HR527	HR537	HR547	HR617	HR637	HR737	HR837
16	406.4	HR117	HR127	HR127	HR517	HR527	HR537	HR547	HR617	HR637	HR737
171/2	444.5	HR117	HR127	HR137	HR437	HR517	HR527	HR537	HR547	HR637	HR737
18	457.2	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
19	482.6	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
20	508.0	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
22	558.8	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
24	609.6	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737
26	914.4	HR117	HR217	HR237	HR437	HR517	HR527	HR537	HR547	HR637	HR737

Packaging & Shipping

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  

 

Company Profile

 

 At Hengji, you can find a wide variety of drill bits to suit your needs. Our selection includes TCI tricone bits, steel tooth tricone bits, single roller cone bits, PDC bits, hole openers, drag bits, and more.

We have exported our bits to 58 countries worldwide, earning approval as a trusted manufacturer and supplier for renowned oil and gas companies. In fact, we are recognized as a reputable OEM supplier and manufacturer for many famous brands.

As an ISO9001 and SGS certified drill manufacturer, we take pride in delivering high-quality drill bits at competitive prices. We also offer convenient door-to-door delivery service. Simply send us an email to inquire about our best prices today.

Certifications

 

Our Advantages

--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.

 

FAQ

FAQ
FAQ
1. Does your company make or distribute products?
A: We are a professional factory in China that specializes in producing tricone bits, PDC bits, hole opener,single cone bit and drag bit.

2. Can you tell me about your products?
A: Our products and services are accredited to ISO 9001:2008, ensuring that our mature production technology guarantees international-quality products. We offer many high-quality products which can be found on our website (https://hb-bits.en.made-in-china.com/) . 
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3. What is your packaging and delivery process?
A: We use high-quality export cartons or standard export wooden cases for packaging.

4. How long does delivery take?
A: If the product is in stock, we can deliver it within a week. If it is out of stock, delivery can take 7-30 days depending on the order quantity. Transportation is available by sea or air.

5. How can I order your products?
A: Simply send us an inquiry with a detailed item description or model number. If you have no packing preference, we will use the standard sea-way packing. To avoid any confusion, please attach a reference picture or link to our website for better understanding.
6.What is the website about your factory?
  A:Our website is: //hb-bits.en.made-in-china.com