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Tricone Drill Bit 522,532 for rock mining drilling
China Ruilong Drill 

Tricone drill bit for mining 

(1) Cutting Structure of this series tricone rock bit :
The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.The wear-resistance of teeth is enhanced with premium tungsten carbide hardfacing on the tooth surfaces for steel tooth bit.
 
(2) Gauge Structure of this series tricone rock bit :
Multiple gauge protection with gauge trimmers on heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hardfacing on the shirttail increases gauge holding capability and bearing life.
 
(3)Bearing Structure of this series tricone rock bit :
High precision bearing with two thrust faces. Balls lock the cone.Hardface heard bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved and suitable for high rotary speed.
 
(4)Seal and Lubrication of this series tricone rock bit :
The advanced metal seal package consists of two metal seats and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seal 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.
 
Main product
 
(1) IADC code: 116 117 126 127 136 137 216 217 226 226 316 317 326 327 336 337 115 125 135 215 225 235 315 325 335 114 124 214 314 111 121 131 346 347 417 427 437 517 527 537 617 627 637 737 837 832 415 425 435 445 525 625 635 416 427 436 446 447 516 526  537 547 516 536  535
 
(2) Sizes:  From 2 7/8 to 26"larger sizes for hole opener bit ,reamer bit
 
(3)bearing type: sealed bearing and non-sealed bearing ;HJ(metal sealed journal bearing)   ;HA (rubber sealed journal bearing ;aircooled bearing type
 
(4)formation or layer: soft ,medium soft ,hard,medium hard,very hard formation

 

IADC CODE SELECTION

 

IADC   WOB RPM Application
(KN/mm) (r/min)
111/114/115 0.3-0.75 200-80 very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
116/117 0.35-0.8 150-80 very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk
121 0.3-0.85 200-80 soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
124/125 180-60
131 0.3-0.95 180-80 soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
136/137 0.35-1.0 120-60
211/241 0.3-0.95 180-80 medium formations with high compressive strength, like medium, soft shake, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbeds.
216/217 0.4-1.0 100-60
246/247 0.4-1.0 80-50 medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
321 0.4-1.0 150-70 medium abrasive formations, like abrasive shale, limestone, sandstone, dolomite, hard gypsum, marble
324 0.4-1.0 120-50
437/447/435 0.35-0.9 240-70 very soft formations with low compressive strength and high drill ability, like clay, mudstone, chalk, gypsum, salt, soft limestone
517/527/515 0.35-1.0 220-60 soft formations with low compressive strength and high drill ability, like mudstone, gypsum, salt, soft limestone
537/547/535 0.45-1.0 220-50 soft to medium formations with low compressive strength, like medium, soft shake, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds
617/615 0.45-1.1 200-50 medium hard formation with high compressive strength, like hard shale, limestone, sandstone, dolomite
637/635 0.5-1.1 180-40 hard formation with high compressive strength, like limestone, sandstone, dolomite, hard gypsum, marble
Note: Above limitts of WOB and RRPM should not be used simultaneously

 

JOINT  SIZE

 

Bit Diameter API PIN
(inch) (mm)
3 7/8"~5 1/4" 98~134 2 3/8", 2 7/8"
5 5/8"~6 3/4" 143~171 3 1/2"
7 1/2"~9 1/2" 190.5~241 4 1/2"
9 5/8"~13 3/4" 245~350 6 5/8"
14 5/8"~26" 371~660.4 7 5/8"
 




 
 
 
 
Ruilong Enterprise Culture
 
      We adhere to the principle of"Win the market by quality.Creat value for the clinets".
   We will be high-quality products,excellent service,favorable price and sincerely hope to cooperate with customers from all over the world.


Contact Information 

Tel:86 0635 2365192
Fax:86 0635 2365191
Email:ruilongdrill@lqrlzj.com
Cell no.(whatsapp):+86 13969552318