hughes 17 1/2"roller cone rotary tools rock drill bit used tci tricone bit

TCI tricone bit 1.Sizes rang from 3 7/8 -26 2.Cover all IADC code 3.Reliable quality and best price

 

TCI tricone bit / /Tungsten carbide insert bits 

Tricone bit:

This type of bits have optimal bearing design, it can be working stably in high WOB, and the quality tungsten carbide inserts on cone and the gauge make a good wear resistance largely extend the working life of bits. It is suitable for medium to hard formation.

Specifications 

Tungsten carbide insert bit of high strength and toughness is to increase the impact resistance of cutter and decrease the breakage rate.Widely used in oil exploration, subterranean heat. Hydrology welling drilling and so on.It is almost suitable for hard rocks, such as limestone, dolomite, chert, firm sandstone, firm anhydrite and so on.According to your request, all sorts of products can be customized.Large quantity of products are in stock to meet the your special need.IADC: journal bearing 417 427 437 447,517 527 537 547, 617 627 637 647, 737, 837

                     roller bearing 415 435 445, 515 535 ,615 625 635

Recommended drilling parameters of tri-cone rock bits

  

Rock formation		Bit type	Bit size		Drilling weight	Rotary speed
			mm	inch	kN/mm	r/min
Very soft	Soft Marl, Clays, Sands, Salts etc.	1	187.3~346.1	7 3/8~13 5/8	441~735	120~50
soft	Clays, Soft Shale, Marl, Sands, Salts etc.	2	95.2~174.6	3 3/4-6 7/8	245-490	100-50
			187.3~346.1	7 3/8-13 5/8	490-784	90-40
Medium soft	Shale, Marl, Sandstone, Soft Limestone etc.	3	95.2~174.6	3 3/4-6 7/8	245-490	80-40
			187.3~311.1	7 3/8- 12 1/4	490-784	80-40
medium	Hard Shale, Limestone, Medium/Hard Sandstone etc.	4	95.2~174.6	3 3/4-6 7/8	294-539	80-60
			187.3~241.3	7 3/8-9 1/2	539-833	60-40
medium hard	Hard Dolomite, Limestone, Hard Sandy, Rock etc.	5	95.2~174.6	3 3/4-6 7/8	294-539	80-60
			187.3~241.3	7 3/8-9 1/2	539-833	60-40
hard	Sandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc.	6	95.~-174.6	3 3/4-6 7/8	294-539	80-40
			187.3-215.9	7 3/8-8 1/2	580-882	60-40
Very hard	Quartzite, Chert, Basalt Granites, Pyrites etc.	7	95.2-174.6	3 3/4-6 7/8	294-539	80-40

  

Photos  of TCI tricoe bits

How to complete the whole deal

Step:

1. Firstly decide the design, material and color

2. Decide the size in accordance with client's requirement and our recommendation

3. We will give the best offer.

4. Client's accept the offer and we send proforma invoice.

5. Client transfers 30%-50% deposit and production begins

6. After production, we will send ready products photo

7. After client's confirmation, we will arrange shipment, and send copy shipping documents like B/L, commercial invoice and packing list

8. Client transfer balance payment and we will send original documents by express or Telex Release

Hejian City Xingtai Drilling Accessories Co.,LTD

Our aim is to supply the best quality products and the fastest and best service to meet every client's satisfaction. Contact me when there is any inquiry or question.   Let's work together to bring your dream to reality.

hughes 17 1/2"roller cone rotary tools rock drill bit used tci tricone bit