8 1/2" IADC Code 637 G Tricone Bit for Very Hard Rocks Drilling

• Type: Core Drill
• Usage: Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling
• Certification: API
• Name: Tricone Drill Bit
• China: China Tricone Drill Bit
• Supplier: Tricone Drill Bit Supplier
• Model NO.: ROS 8 1/2"
• Manufacturer: China Tricone Drill Bit Manufacturer
• Type No: China Tricone Rotary Drill Bits
• Bit: China Bit
• Rock Bit: China Rock Bit
• Item: Roller Cone Bit
• Item No: TCI Tricone Bit
• Use: Africa Tricone Drill Bit
• Transport Package: Wooden Box
• Specification: 8 1/2"
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143210
• Production Capacity: 2500

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.



Description: 

1.Cutting structure this type TCI tricone bits:
The durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.
2.Gauge structure this type TCI tricone bits:
Multiple gaugeprotection 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 of this type TCI tricone bits:
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 of this type TCI tricone bits:
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 this type TCI tricone bits:
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.
 
Advantage:
High-strength, high flexibility, high temperature and high wear resistance. 2. High-precision metal seal. 3. Locking roller ball, to adapt to high-speed. 4. The use of high strength high toughness carbide teeth, 5. Hours in the rotary cone bit with the impact, crushing and shearing the role of broken rock. 6. Cone bit to adapt to the soft, medium and hard of various strata. 7. Reasonable price and long working life.
 
Application: 
Rock drill bit is adapt to range from 20 to 150 Mpa.
3-cone drill is now widely used in geological exploration, anti-solid hole, engineering grouting, and so on.
Technical specifications:
 

IADC code	417 427 437 517 527 537 617 627 637 737 837 832 415
(the main)	425 435 445 525 625 635 416 427 436 446 447 516 526
	536 535 537 547
Available size	From 2 7/8'' to 26''
	Larger sizes for hole opener bit,reamer bit
Bearing type	Sealed bearing and non-sealed bearing
	HJ(metal sealed journal bearing)
	HA(rubber sealed journal bearing)
	aircooled bearing type
Formation or layer	Soft, medium soft, hard, medium hard, very hard formation
Button size	Button bit,saw steel
(extra fratures)	1) Y-Conical teeth
	2) X- chisel teeth
	3) K- wide teeth
	4) G- Gauge protection
Material	Tungsten Carbide
Delivery terms	By sea or by air
Application	Petroleum & gas,water well, mining and tectonic industries,
	oil field,construction,geothermal,directional boring,
	and underground foundation work
Packing	fumigation free of wooden case
Payment Term	T/T (30% downpayment and 70%balance before shipping.)
MOQ	1 Piece
Supply Ability	1000 Pieces/month
Delivery Time	within 7-15 work days
Main market	Canada USA Middle east Africa Europe

 

NO.	TRICONE ROCK BIT SIZE		REG.PIN API
	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

1. Cutting StructureThe durability of premium tungsten carbide insert is improved with new formulas and new techniques for insert bit.

2. Gauge StructureMultiple 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 StructureHigh 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 LubricationPremium 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 ApplicationIt 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.


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.