Mitsubishi - Super Maxbit Under Reaming System

Mitsubishi - Super Maxbit Under Reaming System

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Mitsubishi - Super Maxbit Under Reaming System


The SUPER MAXBIT gives stability when drilling collapsing overburden formations. This is an advanced technology compared to the other eccentric drilling methods. It consists of two to three bit wings connected to the DTH Hammer. The bit head is extendable/retractable when the drill string rotates in the forward/reverse direction. Drilling and casing are possible simultaneously with the use of a casing shoe.

The SUPER MAXBIT has the following advantages:
● High-speed drilling similar to a standard DTH bit.
● Straight hole drilling.
● Uniform rotation while drilling of boulders, sand, and gravel.
● Reliability of extending and retracting proven by customer experiences.

 Rendering of Mitsubishi-Super Maxbit under reaming system.

 

APPROPRIATE CASING AND HAMMER TYPE
TYPE TWO WING THREE WING BIT GAUGE APPLICABLE CASING PIPE DEVICE O.D. (D4) HAMMER TYPE
EXTENDED (D1) CLOSED MAX. O.D. (D2) MIN. I.D. (D3) NORMAL SIZE
IN MM IN MM IN MM IN MM IN MM IN MM
90   4.9" 125 3.6" 91 4.5" 114.3 4.0" 102.3 4" 101.6 3.6" 92 DHD3.5, COP32
115   6.0" 152 4.5" 114 5.6" 141.3 5.0" 126.6 5" 127.0 4.5" 115 SD-4, DHD340,
COP42
140   7.3" 185 5.5" 140 6.5" 165.2 6.0" 153.2 6" 152.4 5.6" 141 SD-5, DHD350
165   8.5" 215 6.5" 166 7.5" 190.7 7.0" 178.7 7" 177.8 6.6" 167 SD-6, DHD360,
QL60
187   9.3" 237 7.3" 186 8.5" 216.3 8.0" 202.3 8" 203.2 7.4" 187 SD-6, DHD360,
QL60
215   10.7" 272 8.5" 217 10.0" 254.0 9.5" 241.0 9" 228.6 8.6" 218 SD-8, DHD380,
QL80
240   11.4" 290 9.4" 238 10.8" 273.1 10.0" 254.5 10" 254.0 9.4" 240 SD-8, DHD380,
QL80
280   13.4" 340 11.1" 281 12.5" 318.5 11.9" 301.7 12" 304.8 11.1" 283 SD-10
315   14.7" 373 12.5" 318 14.0" 355.6 13.3" 336.6 14" 355.6 12.6" 320 SD-12, DHD112,
N120
365   16.7" 425 14.3" 363 16.0" 406.4 15.3" 387.4 16" 406.4 14.4" 365 SD-12, DHD112,
N120
410   18.8" 478 16.2" 412 18.0" 457.2 17.1" 435.0 18" 457.2 16.3" 414 SD-15, DHD112S, N120S
460   20.9" 530 18.1" 461 20.0" 508.0 19.0" 482.6 20" 508.0 18.2" 463 SD-15, DHD112S,
N120S, SD-18
510   22.8" 580 20.0" 509 22.0" 558.8 21.0" 533.4 22" 558.8 20.1" 511 SD-15, DHD112S,
SD-18, N180
560   24.8" 630 22.0" 559 24.0" 609.6 23.0" 584.2 24" 609.6 22.1" 561 SD-18, DHD120A,
N180

Contact

Global Sales: 1.888.465.1569
Arizona Office: 844.836.6225
California Office: 844.573.0854
Florida Office: 877.544.4211
Georgia Office: 888.448.4430
Minnesota Office: 320.616.0701
Missouri Office: 877.699.2159
New Jersey Office: 888.379.0371
North Carolina Office: 828.838.2110
Pennsylvania Office: 717.515.9809
Wisconsin Office: 888.465.3704