Drilling System with Ring Bits Manufacturer

Drilling System with Ring Bits

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Permanent
1. When drilling starts, the pilot bit drives the ring bit down to the hole, followed by the casing shoe and casing tube.
2. At the bedrock, start the reverse circulation of tools and pull the pilot bit from the drill hole. Leave the ring bit in the hole.
3. Pour the concrete or do the next construction task.

Retrievable
1. After the drilling starts, the pilot bit drives the ring bit down to the hole, followed by the casing shoe and casing tube.
2. At the bedrock, start the reverse circulation of tools and pull the pilot bit back from the drill hole. Leave the ring bit in the drill hole.
3. Pull the casing tube out with the ring bit and at the same time pour the concrete.

Permanent Retrievable
	A	E	C	D			G
System No.	Outer Dia.	Thickness Range	Ring bit Outer Dia	Pilot bit Outer Dia	Hammer Type	Drill Pipe Range	Ring Bit Inner Dia.
KC85	108 mm (4.25")	9-15mm (0.35")-(0.59")	118mm (4.65")	86 mm (3.4")	DHD 3.5	76 mm (3")	77 mm (3.03")
KC90	114 mm (4.5")	11-13 mm (0.43)"-(0.51")	127 mm (5")	9 0 mm (3.6")	DHD 3.5 COP32/34	76 mm (3")	82 mm (3.22")
KC102	127 mm (5")	11-13 mm ( 0 .43")-( 0 .51")	136 mm (5.35")	102 mm (3.97")	DHD3.5 COP32/34	76 mm (3")	92 mm (3.62")
KC115	140 mm (5.5")	13 - 16 mm (0.5")-(0.63")	152 mm (5.98")	115 mm (4.6")	DHD340 QL 40 , SD-4	76 mm (3")	105 mm (4.14")
KC115A	146mm (5.75")	14-19mm (0.55") - (0.75")	154 mm (6")	115 mm (4.6")	DHD340 , QL 40 , SD-4	76 mm (3")	105 mm (4.14")
KC140	168 mm (6.6")	13-19 mm (0.51") - (0.75")	184 mm (7.25")	140 mm (5.5")	DHD 350 QL 50 , SD-5	76mm (3")	125 mm (4.92")
KC152	178 mm (7")	13- 19 mm (0.51") - (0.75")	194 mm (7.65")	150 mm (5.9")	DHD350 QL50 , SD-5	76, 89 mm (3"),(3.5")	140 mm (5.5")
KC165	193 mm (7.6")	13- 20 mm (0.51") -(0.78")	206 mm (8.11")	16 5 mm (6.45")	DHD 360 QL 60 , SD-6	89, 114 m (3.5"),(4.5")	150 mm (5.90")
KC185	219 mm (8.62")	13-20mm ( 0 .51") - ( 0 .78")	234 mm (9.2")	184 mm (7.25")	DHD 360 QL 60 , SD-6	89, 114 mm (3.5"),(4.5")	165 mm (6.5")
KC210	244 mm (9.6")	13 - 20 mm (0.51") -(0.78")	260 mm (10.25")	210 mm (8.25")	DHD360/80 SD-6/8 , QL 60/80	114 mm (4.5")	190 mm (7.5")
KC240	273 mm (10.75")	16- 22 Mm (0.63") -(0.83")	305 mm (12")	240 mm (9.45")	DHD380, QL 80 , SD-8	114, 127mm (4.5"),(5")	220 mm (8.7")
KC280	323 mm (12.7")	13- 22 mm ( 0 .51") -( 0 .86")	348 mm (13.7")	284 mm (11.2")	DHD 380 , QL 80 , SD 8/10	127 mm (5")	255 mm (10")
KC365	406 mm (16")	18 -24 mm (0.70") -(0.94")	440 mm (17.32")	364 mm (14.33")	DHD112 QL 120 , SD - 10/12	140 mm (5.5")	340 mm (13.4")
KC410	457 mm (18")	18 - 24 mm (0.70") - (0.94")	488 mm (19.2")	413 mm (16.25")	DHD 112 QL 120 , SD-12	140 mm (5.5")	385 mm (15")
KC465	508 mm (20")	18-24mm ( 0 .70")- ( 0 .94")	538 mm (21.2")	464 mm (18.25")	DHD 112 QL 120/200 , SD-15/18	140 mm (5.5")	440 mm (17.3")
KC510	558 mm (22")	18 - 24 mm (0.70")-(0.94")	590 mm (23.22")	514 mm (20.25")	DHD 112S , QL 120/200 SD-15/18 , NUMA 180	140 mm (5.5")	485 mm (19")
KC560	610 mm (24")	18 - 24 mm (0.70")-(0.94")	642mm (25.25")	566 mm (22.25")	QL 200 NUMA180 , SD-18	168 mm (6.6")	540mm (21.25")
KC615	660 mm (26")	18 - 24 mm (0.70")-(0.94")	694 mm (27.3")	615 mm (24.2")	QL200/SD-18 NUMA180	168mm (6.6")	590 mm (23.2")
KC660	711 mm (28")	18 - 24 mm (0.70")-(0.94")	745 mm (29.3")	665 mm (26.2")	QL 200 , SD-18 NUMA 180/240	168mm (6.6")	640 mm (25.2")
KC715	762 mm (30")	18 - 24 mm (0.70")-(0.94")	798 mm (31.4")	716 mm (28.2")	QL 200-SD18 N180/240	168mm (6.6")	685 mm (26.95")
KC815	863 mm (34")	18 - 24 mm (0.70")-(0.94")	900 mm (35.4")	815 mm (32")	QL 200 NUMA 180/240	168mm (6.6")	785 mm (30.9")