Rock Roller Cone Drill Bit Rotary Three Cones Bit Drilling Bit 52 Alloy Hard Rock Formation Drilling Accessories Drill Spare Parts Drill Bit Tricone Bit

Product Description

 

DTH Drill Bit Features:
Fast drilling and retrieval!High efficiency, low labor intensity of workers!
DTH Drill Bit Usage: 
Widely used in earth and stone engineering mining Wells drilling construction projects drilling Wells edge pillar support.
DTH Drill Bit Model:
Medium/Low wind pressure DTH Drill bit:80 90 100 110 120 130 140 150 180 185 200 220
High wind pressure DTH Drill bit:115 127 138 152 165 178 195 203 216 240 254 304

DTH Drill Bit Type:
Medium/Low wind pressure DTH Drill bit,High wind pressure DTH Drill bit
DTH Hammer Model:
Medium/low wind pressure DTH hammer:CIR65 CIR70 CIR90 CIR110 CIR130 CIR150 CIR170 CIR200        
High wind pressure DTH hammer:DHD340 DHD350 DHD360 DHD380 N125 SD12

IADC	Rock formation	WOB (KN/mm)	PRM(r/min)
417/427/437	Low compressive strength, high drill-ability and extremely soft formation, like shale, clay, sandstone, conglomerate etc	0.35~0.90	140~70
447	Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, plaster etc.	0.35~1.00	140~60
517	Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, etc	0.35~1.05	120~50
527	Soft formation with low compressive, like Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, anhydrite etc.	0.35~1.05	120~50
537/547	Low compressive strength, medium hard formation with hard abrasive interlayer, like Hard shale, anhydrite, soft limestone, sandstone, dolomite with mezzanine, etc.	0.50~1.05	110~40
617/627	High compressive strength, medium hard and thick hard interlayer, like hard shale, limestone, sandstone, dolomite, etc.	0.50~1.05	80~40
637/737	High compressive strength, medium hard and high abrasive formation, like limestone, dolomite, sandstone, chert, etc.	0.7~1.20	70~40

Note: Please do not select the maximum value for WOB and rotational speed at the same time

Bit Size(inch)	Bit Size(mm)	Bit Type
3 1/2	88.9	HR527
4 5/8	117.5	HR126 HR517
4 3/4	120.7	HR116
5 7/8	149.2	HR216 HR537 HR547 HR637
6	152.4	HR117 HR216 HR246 HR517 HR547
6 1/4	158.8	HR127 HR247 HR517 HR527 HR547 HR637
6 1/2	165.1	HR127 HR217 HR517 HR537
6 3/4	171.5	HR116 HR447 HR537
7 1/2	190.5	HR127 HR217 HR517 HR517 HR527 HR527 HR617
7 7/8	200	HR117 HR437 HR517 HR527 HR537 HR547 HR547 HR617 HR627 HR637
8 3/8	212.7	HR217 HR527 HR547
8 1/2	215.9	HR117 HR127 HR137 HR217 HR247 HR437 HR447 HR517 HR527 HR537 HR547 HR617 HR627 HR637
8 3/4	222.3	HR116 HR437 HR517 HR537 HR627
9 1/2	241.3	HR117 HR127 HR417 HR437 HR517 HR527 HR537 HR547 HR617
9 5/8	244.5	HR117 HR127 HR137 HR217 HR437 HR517 HR527
9 7/8	250.8	HR117 HR127 HR137 HR217 HR417 HR437 HR517 HR527
10 5/8	269.9	HR127 HR217 HR437 HR517 HR547
11 5/8	295.3	HR117 HR127 HR137 HR217 HR147 HR517 HR537 HR547
12 1/4	311.2	HR117 HR127 HR137 HR417 HR437 HR517 HR527 HR537 HR547 HR617 HR627 HR637
13 5/8	346.1	HR437 HR517 HR537
13 3/4	349.3	HR437 HR517 HR537
14 3/4	374.7	HR117 HR127 HR137 HR517 HR527
15 1/2	393.7	HR127 HR217 HR517 HR527 HR537 HR547
16	406.4	HR117 HR127 HR127 HR517 HR527 HR537 HR547
17 1/2	444.5	HR117 HR127 HR137 HR437 HR517 HR527 HR537 HR547
18	457.2	HR547
20	508	HR117 HR217 HR515 HR535
22	558.8	HR117 HR217 HR515 HR535
24	609.6	HR117 HR217 HR515 HR535
26	660.4	HR117 HR217 HR515 HR535
28	711.2	HR117 HR217 HR515 HR535
36	914.4	HR117 HR217 HR515 HR535

Cutting Structure
The wear-resistance of the teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for the steel tooth bit.The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit

Gauge Structure
Multiple gague protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone,tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capacity and bearing life.

Bearing Structure
High precision journal bearing with two thrust faces,Balls lock the cone.Hardfaced head bearing surface.Cone bearing inlaid with friction-reducing alloy and then silver-plated.Abrasion resistance and seizure of the bearing are improved.and suitable for high rotary speed.

Seal and Lubrication
The advanced metal seal package consists of two metal seals and two elastic energizers.Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force,and achieves the bearing seal.In the drilling,metal seals are relatively dynamic,and the energizers are static.This will improve the reliability and durability of bearing seal.The pressure compensator system and advanced grease can greatly increase the lubricating reliability.

COMPANY PROFILE

Pearldrill is a leader in the manufacture and development of many kinds of bits in China. We provide the best quality PDC coring drill, DTH drill, Tri drill bits etc to the market, all types of non-coring or coring drill traces. Our drill bits are used for well drilling, mining and construction contractors. Our drill bit has been tested and verified by time, with wear resistance and fast drilling speed. Different drill bits can be customized according to different rock formations. The engineering time is greatly shortened, and the maximum performance is exerted in the operation during drilling. Our products are durable and reliable. Our products are the preferred drill bits for drilling engineers in many countries because of our precise design and efficient drilling during use.

-WHY CHOOSE US-

Pearldrill 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 of service experience.
--Optimized solutions for the various requirements.

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

 

DIY customization: please provide your rock formation information or detailed size drawings.

Free samples: some samples can be provided free of charge.

Payment:T/T L/C,D/A,D/P,Western Union,MoneyGram.