name            

 rock drill button bit 

              Size:11"

IADC Code:737

Sealed Type:rubber sealed

Thread:6 5/8” REG PIN

Weight:90KGS

WOB(kN/mm):0.70~1.20

Rotary Speed(RPM):70~40

Make up torque(N.m):38,000~43,400

Packing: Plywood box(free-fumigation)

Industrial standard:SY/T5164

Application:Hard formation with high abrasiveness, such as hard limestone, dolomite, hard sandstone and chert, etc.

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 limits of WOB and RRPM should not be used simultaneously