Core Barrel With Bullet Bits

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Core Barrel With Bullet Bits

Core Barrel with Roller Bits is used in very strong rock formations(compressive strength > 100Mpa).

Mian Applications: Core Barrel with Roller Bits is used in very strong rock formations (compressive strength> 100 Mpa).
Features: Roller Bits are API Certificated, complete of bearing and carbide insert.
Forging Process:
Welded Type or Replaceable Type
Sealed Bearing And Tungsten Carbide Insert

CORE BARREL WITH ROLLER BITS TECHNICAL DATA

Drilling Dia	Shell Dia	Shell Length	Shell Thickness	Teeth Qty	Weight
mm	mm	mm	mm	pcs	kg
600	530	1200	16+30	6	500
700	620	1200	16+30	9	572
800	720	1200	16+30	9	660
1000	920	1200	16+30	12	810
1100	1020	1200	16+30	15	861
1200	1120	1200	16+30	15	1000
1300	1220	1200	16+30	15	1052
1400	1320	1200	16+30	18	1180
1500	1420	1200	20+30	18	1240
1600	1520	1200	20+30	21	1350
1700	1620	1000	20+40	24	1635
1800	1720	1000	20+40	24	1690
2000	1920	800	20+40	27	1770
2200	2120	800	20+40	30	1950
2500	2420	800	20+40	33	2450

Categories Core Barrel, Drilling Buckets & Augers

Drilling buckets are mainly used for drilling water-bearing sandy soil, sludge, clay, muddy sub clay, sandy gravel, cobble, and weathered soft formation. The bucket can be designed into cylindrical type and conical type according to bucket diameter, type of drilling rig and soil conditions. The welding angle of bucket teeth can be designed according to formation conditions so that the drilling buckets can keep high efficiency of soil cutting amount in any formation conditions.
The bottom cover is made of high-strength Mn plate, and the cutting edge includes single-layer type and double-layer type; the soil inlet also includes single-bottom type and double-bottom type. rock drilling bucket is one mostly using type of buckets for customers abroad.

Double bottom rock bucket: pebbles, gravel layers, moderately weathered soil-like soft rocks, such as moderately weathered argillaceous sandstone, argillaceous conglomerate, etc. In case of harder rocks with higher weathering degree, such as fully weathered and strongly weathered granite, etc., core barrel and spiral auger are often used together.
Unique Drilling Bucket & Core Barrel adopt the high-carbon steel (Q345B, 16Mn, Q195-Q345, etc.) and special drilling bits (B47K20H, B47K19H, B47K17H, 3050, 3060, 3065,C30, C31HD, B85, B43H,18TL, 18HD, 25VIP, 18VIP, 25T, 25HD, 22T,833-18,855 25,18PN/LK,25PN/LK ) angle to keep the drilling strength and efficiency.

Customized Drilling Buckets
(1). Kelly Box: design various type (Buaer, etc. ) and size 130*130, 150*150,200*200 or as required ) kelly box based on demand.
(2).Shell Height: design as demand, according to the piling diameter and soil condition prolong or shorten, increase of efficiency by drilling more.
(3).Cutter: single cutter or double cutter and single bottom or double bottom design as demand;
(4).Bottom Open Mechanic : half-automatic or manul mechanic bottom open system.
(5).Model of Teeth:
Rock Bits:B47K20H, B47K19H, B47K17H, 3050, 3060, 3065,C30, C31HD, B85, B43H, etc.
Clay Teeth:18TL, 18HD, 25VIP, 18VIP, 25T, 25HD, 22T,833-18,855, etc.
Roller Bits: IADC 637/635, IADC 617/615, IADC 537/547/535, IADC 136/137 etc..

Changsha Unique Machinery Co.,Ltd. invest 60 mililon (RMB) at Economic Development Area in MILUO industrial park. The proposed land acquisition is 20 acres. The main annual production ability of the company is about 3000 pcs rotary drilling tools and 200 pcs kelly bar. After the project completed, the estimated annual output value is around 1.5 billion (RMB), and annual tax income is about 10 million (RMB).