12 1/4′′ TCI Tricone Roller Cone Bit/Tricone Rock Bit/Oil Well Drill Bit

• Type: Core Drill
• Usage: Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling
• Certification: API
• Name: Diamond Core Drill Bits
• China: Diamond Core Bit
• Drill Bits: Diamond Drill Bits
• Model NO.: ROS 121/4′′
• Sale: Diamond Core Drill for Sale
• Supplier: Core Bore Drills Supplier
• Coring: Hard Rock Coring
• Bits: Rock Core Drill Bits
• Diamond: Diamond Drill Bits for Rocks
• Rocks: Rock Core Drill
• Mining: Australia Mining
• Transport Package: Wooden Box
• Specification: 121/4′′
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143210
• Production Capacity: 2000

Product Description

Tricone Roller bit is the most widely used drilling bit. When the roller cone bit is working, the cutting teeth alternately contact the bottom of the well, the torque of breaking the rock is small, the contact area between the cutting tooth and the bottom of the well is small, the specific pressure is higher, and it is easy to eat into the formation; the total working length of the working blade is large, thus relatively reducing the wear. Roller bit can adapt to a variety of formations from soft to hard.

According to the number of cones, it can be divided into single-cone bit, tri-cone bit, and assembled multi-cone bit. According to the cutting material can be divided into steel teeth (milled teeth) and insert tooth bit.

The Tricone roller cone bit has been widely used as a tool for drilling rock formations, and a significant improvement in the performance of the bit directly reduces the cost of drilling, especially in the last ten years. The two performance indicators, life time and drilling speed, ultimately determine the extent to which the drill bit affects drilling costs. Raising the penetration rate and service life of the drill bit is an effective way to reduce the drilling cost. It is verified by the data that the improvement of the drilling speed is more effective than the improvement of the bit life to reduce the drilling cost. The improvement of the cutting structure of the drill bit is to improve the drilling machine's machinery. The most direct method of drilling speed. For a long time, people's improvement of the cutting structure mainly focused on the main cutting tooth structure. For example, in the cemented carbide tooth structure, people have successively invented wedge-shaped teeth, spoon-shaped teeth, partial-topped spoon-shaped teeth, and other wearable teeth. . People gradually realized that the gauge structure also has a great impact on the penetration rate and life of drills. In particular, the drill bit used in high-angle wells and horizontal wells requires a reasonable diameter-preserving structure, and many new gauge structures have been researched and developed. Applied to the roller cone bit has achieved good results.


Roller Cone Bit 

12 1/4'' TCI tricone Roller Cone Bit
 
 
                            
Product Description

 Brief introduction

name	Tungsten Carbide Insert Roller Cone Bit
Size	12 1/4"
IADC	617
Bearing Type	sealed bearing
Thread Connection	6 5/8"reg pin
WOB(KN/mm)	0.35~1.05
RPM(r/min)	80~40
Make up toqure(KN.M)	38.000~43.400
Weight(kgs/pc)	120
Color	Customized
Packing	Plywood box(free-fumigation)
Industrial standard	SY/T5164
MOQ	1 PC
Payment terms	T/T,Western Union,and L/C are acceptable
Applications	Medium hard with high compressive strength and thick&hard stringers, such as hard shale, sandstone and dolomite, etc.
Note:other size and IADC is avaiable

 

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

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FAQ


Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.

Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
 








For more information please contact:


 
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED 

 ; http://roschen.en.made-in-china.com 
http://roschen.en.made-in-china.com