Tricone Bits Tri-Cone Rock Drill Bits for Well Drilling

• Type: Core Drill
• Usage: Metal Drilling, Masonry Drilling, Well Drilling, Wood Drilling
• Certification: AISI
• Name: Mineral Drilling Equipment
• Sales: Tricone Drill Bit on Sales
• Type No: Single Cone Bits for Hard Rock
• Model NO.: 8"
• Supplier: China DTH Hammer and Bit Supplier
• Drilling: Hammer Drill Bits
• Rigs: Mining Drilling Rigs
• China: China Mining Drilling Company
• Bit: China Hammer Bit
• Use: China Used DTH Hammer Bit
• Drill Bits: China Hammer Drill Bits
• Transport Package: Wooden Box
• Specification: 8"
• Trademark: ROSCHEN
• Origin: China
• HS Code: 843143210
• Production Capacity: 3000

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.


                   
Tricone bits tri-cone rock drill bits for well drilling


Features:  
1. The bearings adopt high precision radial sliding two way thrust bearings,teeth bearing surface hardfacing of hard alloy layer,the roller bearing is made of alloy after welding to improve the carrying capacity and anti bite ability.
2. Using high-precision metal seal. The metal seal is sealed by a carefully designed metal seal ring as a bearing, and two highly resilient rubber seals are located in the palm and the seal area of the teeth as a static seal. The optimized seal compression ensures that the two metal rings The sealing surface always maintains good contact.
3. Steel ball locking cone, suitable for high speed.
4. The use of a limited pressure differential and to prevent the drilling fluid into the lubrication system of the whole rubber reservoir, to provide a good lubrication guarantee for the bearing system .
5. Using the new grease with high resistance to 250 degrees Celsius and anti-wear.
 

Tricone Roller Rock Bit Specifications: 

Bit size		Bit type
in	mm
7 7/8	200	YJ437, YJ447,YJ517,YJ537
8 1/2	215.9	YJ417,YJ437,YJ447,YJ517,YJ527,YJ537,YJ547
8 3/4	222.3	YJ437, YJ447,YJ517,YJ527
9 1/2	241.3	YJ437, YJ447,YJ517,YJ537,YJ547
9 7/8	250.8	YJ437,YJ517
10 1/2	266.7	YJ517,YJ537,YJ547
10 5/8	269.9	YJ517,YJ537,YJ547
12	304.8	YJ517,YJ537,YJ547
12 1/4	311.25	YJ417,YJ437,YJ447,YJ517,YJ537
13 1/2	342.9	YJ517,YJ537,YJ547
14 3/4	374.7	YJ517,YJ537,YJ547
17 1/2	444.5	YJ517,YJ527
18 7/8	479.4	YJ517,YJ537

Recommended drilling parameters:  

IADC	WOB	RPM(r/min)	Applicable Formations
	(KN/mm)(Bit Dia)
117	0.35-0.8	240-80	Very soft formations with low compressive strength and high drillability,such as clay, mudstone,chalk,etc
127	0.35-0.9	240-70	Soft formations with low compressive strength and high drillability, such as mudstone,gypsum,salt, soft shale,soft limestone,etc
217	0.35-0.9	240-70	Meidum hard with low compressive strength and high drillability.such as hard shale, sandstone and limestone,etc
417	0.35-0.9	240-70	Very soft formations with low compressive strength and high drillability,such as clay,mudstone,chalk,gypsum,salt,soft shale,soft limestone,etc
437 447	0.35-0.9	240-70	Very soft formations with low compressive strength and high drillability, such as clay,mudstone,chalk,gypsum,salt,soft shale,soft limestone,etc
517 527	0.35-1.0	220-60	Soft formations with low compressive strength and high drillability,such as mudstone,gypsum,salt, soft shale,soft limestone,etc
537	0.45-1.0	220-50	Meidum hard with low compressive strength, such as medium soft shale, medium soft limestone,medium soft sandstone,medium formation with harder and abrasiver interbeds,etc.
617 627	0.45-1.1	200-50	Medium hard formations with high compressive strength,such as hard shale,limestone,sandstone,dolomite,etc
637	0.5-1.1	180-40	Hard formations with high compressive strength, such as sandstone, limestone, dolomite, hard gypsum, marble,etc.
737	0.5-1.1	150-40	Hard formations with high compressive strength,such as hard limestone,dolomite,hard sandstone,chert,basalt,etc

1. The teeth bearing surface hardfacing of hard alloy layer,the roller bearing is made of alloy after welding to improve the carrying capacity and anti bite ability.

2. The 0 - ring sealing ring of the bearing adopts high - saturation nitrile rubber with high wear resistance and high temperature resistance. The sealing ring section is enlarged to reduce the sealing pressure, and the outer end lug is sealed to improve the sealing reliability.

3. Steel tooth bit welding new wear-resistant materials, while maintaining high drilling speed of steel teeth while improving the life of the cutting teeth.

4. The drill bit is made of high strength and high toughness carbide teeth,give full play to the high wear resistance and excellent cutting ability of the tooth cutter with optimized designe of the number of rows of teeth, the number of teeth, the height of the teeth and the unique shape of the alloy teeth.


Bit type:

Bit size		Bit type
in	mm
3 1/2	88.9	YA527
4 5/8	117.5	YA126,YA517
4 3/4	120.7	YA116
5 7/8	149.2	YA216,YA537,YA547,YA637
6	152.4	YA117,YA216,YA246,YA537,YA547
6 1/4	158.8	YA127,YA247,YA517,YA527,YA547,YA637
6 1/2	165.1	YA127,YA217,YA517,YA537
6 3/4	171.5	YA116,YA447,YA537
7 1/2	190.2	YA127,YA217,YA517,YA527,YA617
7 7/8	200	YA117,YA437,YA517,YA527,YA537,YA547,YA617,YA627,YA637
8 3/8	212.7	YA217,YA527,YA547
8 1/2	215.9	YA117,YA127,YA137,YA217,YA247,YA437,YA447,YA517,YA527,YA537,YA547, YA617,YA627,YA637
8 3/4	222.3	YA116,YA437,YA517,YA537,YA627
9 1/2	241.3	YA117,YA127,YA417,YA437,YA517,YA527,YA537,YA547,YA617
9 5/8	244.5	YA117,YA127,YA137,YA217,YA437,YA517,YA527
9 7/8	250.8	YA117,YA127,YA137,YA217,YA417,YA437,YA517,YA527
10 5/8	269.9	YA127,YA217,YA437,YA517,YA547
11 5/8	295.3	YA117,YA127,YA137,YA217,YA147,YA517,YA537,YA547
12 1/4	311.2	YA117,YA127,YA137,YA417,YA437,YA517,YA527,YA537,YA547,YA617,YA627,YA637
13 5/8	346.1	YA437,YA517,YA537
13 3/4	349.3	YA437,YA517,YA537
14 3/4	374.7	YA117,YA127,YA137,YA517,YA527
15 1/2	393.7	YA127,YA217,YA517,YA527,YA537,YA547
16	406.4	YA117,YA127,YA517,YA527,YA537,YA547
17 1/2	444.5	YA117,YA127,YA137,YA437,YA517,YA527,YA537,YA547
18	457.2	YA547
20	508	YA117,YA217,YA515,YA535
22	558.8	YA117,YA217,YA515,YA535
24	609.6	YA117,YA217,YA515,YA535
26	660.4	YA117,YA217,YA515,YA535
28	711.2	YA117,YA217,YA515,YA535
36	914.4	YA117,YA217,YA515,YA535

Recommended drilling parameters:
 

IADC	WOB	RPM(r/min)	Applicable Formations
	(KN/mm)(Bit Dia)
116 117	0.35-0.8	150-80	Very soft formations with low compressive strength and high drillability,such as clay, mudstone,chalk,etc
126 127	0.35-0.9	150-70	Soft formations with low compressive strength and high drillability, such as mudstone,gypsum,salt, soft shale,soft limestone,etc
136 137	0.35-1.0	120-60	Soft to meidum soft formations with low compressive strength and high drillability, such as meidum soft shale,hard gypsum, meidum soft limestone,meidum soft sandstone soft formation with harder interbeds ,etc
216 217	0.4-1.0	100-60	Medium formations with high compressive strength,such as meidum soft shale,hard gypsum, meidum soft limestone,soft formation with harder interbeds ,etc
246 247	0.4-1.0	80-50	Meidum hard formations with high compressive strength,such as abrasiver shale,limestone,sandstone,dolomite,hard gypsum,marble,etc
417 437 447	0.35-0.9	150-70	Very soft formations with low compressive strength and high drillability, such as clay,mudstone, chalk,gypsum,salt, soft shale,soft limestone,etc
517 527	0.35-1.0	140-60	Soft formations with low compressive strength and high drillability, such as mudstone,gypsum,salt, soft shale,soft limestone,etc
537 547	0.45-1.0	120-50	Soft to medium formations with low compressive strength,such as meidum soft shale, meidum soft limestone,medium formation with harder and abrasiver interbeds ,etc
617 627	0.45-1.1	90-50	Medium hard formations with high compressive strength,such as hard shale,sandstone,limestone,dolomite,etc.
637	0.5-1.2	80-40	Hard formations with high compressive strength,such as limestone,dolomite, sandstone,hard gypsum,marble,etc

Product feature






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

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