mining & construction

www.lonestarbit.com

Mining & Construction

J-Drive Sacrificial Bits

1. Diameter of Bit and/or Casing (1” - 192”)2. Length of J-Connection3. Number of Blades (3,4,5,6, etc.)4. With or Without Tungsten Carbide (3/16 is standard, 1/4 and 1/8 on request)5. Type of Drive Shoe and/or Connection on the Drive Shoe (custom drive shoe available on request)

- Sacrifical bits are DOM and A36 material 58,000–80,000 psi (400–550 MPa) unless specified. 4140, 4145, Titanium, or other material available upon request.- All carbide is brazed using nickel silver (85,000 psi) and a proprietary technique to ensure maximum footage.- Angles are properly skewed and spaced for superb cutting efficiency- Full open centers are standard, jets and restrictor plates are available upon request.- Any type of connection is available

* API, API I.F., API. F.H., CA21, NPT, DCDMA, NW, AW, AWJ, NWJ, BECO, FAILING, AMMT, PAC, WINTER WEISS, RED DEVIL, MAYHEW, EUE, BUTTRESS, MAYHEW JUNIOR, HACKER, VERMEER, NPT, JOY, BUTRESS, HUGHES H-90, FEDP, and MANY MORE If your connection is not listed, please call to confirm availability.

When ordering please specify:

Drive Shoe Sacrificial Bit With Drive Shoe Attached

Sacrificial Bit for Secant Pile Walls and Foundation construction applications. This bit is used for applicationswhere a more economical solution is desired for simultaneous drilling and grouting. These bits are suitable for a variety of ground conditions including clay, sands and gravel, made ground and weathered rock. Applicationsinclude Secant Pile Walls, Micropiling as well as soil nailing, ground anchors, and rock bolting. These bit are suitable for a wide range of project types including rail related work and foundation upgrades, stabilization and underpinningas well as façade retention, tension piles, tie backs, highway and bridge works, etc.

We can make precision cut weld on blades for your drilling needs. Our blades come with industry standard tungstencarbide inserts. We have many blades in stock, or we can provide a design using your custom specifications. These are often used to weld onto casing at the job site for tiebacks, micropiling, soil anchors, etc.

We can engineer and manufacturer any type of hole opener and claw type drilling tool that your project demands.Because of the wide variety of designs and uses, please call us to speak with one of our drilling engineers.

Tungsten Carbide Weld On Blades


1. Diameter of Bit (1” - 192”)2. Chevron, Step, Scratcher, or Custom Design3. Number of Blades (3,4,5,6, etc.)4. With or Without Tungsten Carbide (3/16 is standard, 1/4 and 1/8 on request)5. The diameter of tubing/casing to be welded onto

Custom Hole Openers and Claw Type Drilling Tools

1. Diameter of auger (3” - 192”)2. Type of connection and/or kelly/tophead drive (hex, square, threaded, etc)3. Angle/pitch of auger blades (if known)4. Thickness of auger blades (if known)5. Type/brand of rig6. Soil conditions (rock, clay, shale, etc.)7. With or Without Tungsten Carbide hardfacing (hardfacing specifications available upon request)8. Type of Drive Shoe and/or Connection on the Drive Shoe (custom drive shoe available on request)9. Auger bit style (if requested)10. Size of tungsten carbide claws (if requested)

- Auger are manufactured with and A36 material 58,000–80,000 psi (400–550 MPa) unless specified. 4140, 4145, Titanium, or other material is available upon request.- All tungsten carbide claws are brazed using nickel silver (85,000 psi) and a proprietary technique to ensure maximum footage.- Angles are properly skewed and spaced for superb cutting efficiency- Any type of connection is available- Additional auger accessories are available upon request


Auger is used in clay, lose unconsolidated soils, and to remove overburden. Available in any length, any diameter,with any size flighting with any pitch requested. Auger can be used for deep foundation piles, piling retaining walls,core sampling, auger hammer continuous coring, well installation, rock drilling, auger cast piles, secant pile walls,pre-drilling for sheet pile, and countless other uses.

Auger

Properties affecting cutting performance include Uniaxial Compressive Strength (UCS) (MPa) and tensile strength (MPa), abrasivity or quartzcontent, and structure of rock (i.e. number and distance and direction of fractures).

Rock Quality Designation (RQD%), is the core recovery percentage which incorporates only pieces that are greater than 100 mm in length.RQD is defined as the quotient: RQD = (Sumof10)/ltot * 100 [Sumof10=Sum of length of core sticks longer than 10cm, ltot=Total length of core run]

Horizontal and Directional Drilling Tools

Excellent for Dirt, Shale, Sand, Gravel, Cobble and Sandstone

• Survives in Limestone, Glacial Till, and Intermittent Hard Rock• Perimeter Flow to create a complete slurry • Replaceable Jets• Carbide-Chip leading edges to extend life of the tool• Integrated Pulling Eye (if requested)

We can engineer and manufacturer any type reamer, hole opener, or claw type drilling tool that your project demands.Because of the wide variety of designs and uses, please call us to speak with one of our drilling engineers.

Reamers

V-Shaped Reamer

Fly-Cutter

Fly Cutter reamers are recommended for use in clay and sand soil conditions

• Large carbide teeth for maximum cutting action.• Achieves a premier level of efficiency due to fluid distribution around the outer diameter of the bore hole.• Cutting tips are angled for use in multiple intrusive ground conditions.• Steep angled rear mixing wings are positioned for maximizing cutting and mixing of spoils through the drilling fluid.

Fluted Reamer

Cone shaped semi-compactor that is excellent for compactable soils.

• Excels in Compact Soils, Survives in Intermittent Rock• Replaceable jets — for pressure tuning and easy repair of “washed out” jets• Perimeter flow — to create a complete slurry rather than stirring dry material• Carbide teeth — to make small cuttings and to survive if a tooth is lost• Carbide-chip wear surfaces — to extend the life of the tool• 3 flutes with 30% bypass — to prevent packing of the bore• Heat treated 4140 aircraft alloy one piece shaft — for excellent thread life and abrasion resistance• Tungsten Carbide with Cobalt added — to resist, cracking and extend the life of the cutters• High tensile weld wire with Nickel content — for best toughness of the welds• Integrated pulling eye — for best reliability• 8” of shaft out front — for pulling into the vises for makeup and breakout

Clay Reamer

Clay Reamer is versatile piece of jobsite tooling that is designed to prevent “clay balling”. The clay cuttings are blended into the fluid and are carried out of the hole in the resulting slurry. • High Velocity Fluid Jets - Drilling fluid is jetted at a high velocity in a radial motion from several locations along the length of the shaft.• Minimal Surface Area - Wings having a slender silhouette, the surface area of the reamer is minimized to reduce the number of square inches to which the clay can adhere.• Carbide teeth and hardsurfacing on the wing edges and (replaceable) fluid ports located along the perimeter of the wings. When combined, these features minimize bit balling, maximize soil shearing, and facilitate the mixing of soils with drilling fluids. The result is a tool with extremely low torque requirements that works effortlessly in sands, loams and sticky clays.

Horizontal and Directional Drilling Tools

Excellent for Hard Rock up to 30,000 psi.

Please call one of our drilling engineers to recommend exactlywhat you need for your demanding project.

1. Overall Diameter of Hole Opener (4” - 48”)2. New or Rerun Bits (hole opener shaft is always new)3. Tungsten carbide inserts (TCI) or steel tooth4. Open bearing or sealed bearing (sealed bearing gives longer performance)5. Type of connections6. IADC code (if known)7. Type of formation (if known)8. Number of cones (if known)9. Diameter of each cone (if known)10. Jets (if desired)11. Stabilizers (if desired)12. Shaft length (front and rear)


Rock Reamer / Hole Opener

www.lonestarbit.com Phone: (713) 429-5484 Fax: (713) 429-1927 [email protected]

Rock Bits / Tricones

Excellent for Hard Rock.

1. Overall Diameter of Hole (2” - 36”)2. New or Rerun Bits (less expensive water well quality available)3. Tungsten carbide inserts (TCI) or steel tooth4. Open bearing or sealed bearing (for abrasive formations)5. Type of connections6. IADC code (if known)7. Type of formation (if known)8. Jets (if desired)


Compressive Strength/Hardness

Range Soil & Rock Types Suggested Bit Types

0 to 10,000 psi/Low Dirt, Clay, Cobble, Talc, Shale, Siltstone, Unconsolidated Sandstone, SlateDrag or Blage Type (duckbill, spade, etc.) Point Attack, Shear Type

(PDC) Milled Tooth & TCI Roller Cone, Single Cone TCI

10,001 to 30,000/Mid Limestone, Dolomite, Sandstone, Coarsely Grained Granites Milled Tooth Rollar Cone

30,000 +/High Finely Grained Granites, Trap Rock, Chert, Iron Formations, Quartzite TCI Roller Cone with conical or round top (dome) inserts

Round Conical Chisel Super Scoop Chisel

Tungsten Carbide Insert (TCI) Shapes

Bailing velocity:

BV = 183.3 x ACFM

BV = Bailing velocity (feet per minute)

ACFM = Actual cubic feet of free air per minute delivered

183.3= Factor for conversion

D = Diameter of the hole being drilled. (inches)

d = Outside diameter of the drill pipe being utilized. (inches)

Reference DataAir Pressure Drop (pounds per square inch), Bits with various air course diameters or jet nozzle sizes

www.lonestarbit.com Phone: (713) 429-5484 Fax: (713) 429-1927 [email protected]

in. mm in. mm in. mm 40

0

50

0

60

0

70

0

80

0

90

0

10

00

11

00

12

00

13

00

14

00

15

00

16

00

17

00

18

00

19

00

20

00

21

00

22

00

23

00

24

00

26

00

28

00

30

00

1/2 12.70 5/16 7.93 45 55 65 75 845/8 15.87 3/8 9.52 36 46 54 64 72 813/4 19.05 7/16 11.11 30 37 44 51 60 68 76 827/8 22.22 1/2 12.70 26 32 36 44 51 57 64 70 76 821 25.40 9/16 14.28 21 26 32 37 44 50 54 59 65 70 76 82

3/4 19.05 7/16 11.11 24 31 38 45 52 58 66 72 78 847/8 22.22 1/2 12.70 24 30 36 42 48 54 62 70 79 871 25.40 9/16 14.28 23 29 35 40 46 52 58 64 70 76 83

1 1/8 28.57 5/8 15.87 24 29 34 39 44 50 55 60 65 71 76 825/8 15.87 3/8 9.52 29 39 49 57 65 73 803/4 19.05 7/16 11.11 22 30 38 45 53 61 68 75 827/8 22.22 1/2 12.70 24 30 36 42 48 56 63 69 74 801 25.40 9/16 14.28 23 29 35 41 46 52 57 62 67 71 76 81

1 1/8 28.57 5/8 15.87 22 28 35 39 44 49 52 56 61 65 69 73 77 813/4 19.05 22 25 29 34 39 43 46 50 53 57 60 64 67 71 74 78 82

3/4 19.05 7/16 11.11 22 28 33 38 44 49 55 61 66 72 787/8 22.22 1/2 12.70 21 26 30 36 41 46 50 55 59 63 68 73 781 25.40 9/16 14.28 22 26 30 34 37 41 45 49 53 58 62 66 70 75

1 1/8 28.57 5/8 15.87 22 25 28 30 34 37 41 45 49 52 56 60 64 67 71 751 3/8 34.92 3/4 19.05 22 25 28 31 34 37 40 43 45 48 51 54 57 60 64 681 1/2 38.10 7/8 22.22 20 22 24 26 28 30 31 33 36 38 40 43 45 47 50

2 50.80 1 1/8 28.57 20 22 28 30 30 32 34

Bit Size Range

Full Air Course

Diameter

Jet Nozzle Diameter

3 Each Cubic Feet Per Minute

Air Volume Delivered

9 to

9 7/8

229

251

10 5/8 to

17 1/2

270

445

5 3/8to

6 3/4

137

171

7 3/8 to

7 7/8

187

200

In addition to adequate return air velocities, the pressure drop across the bit must be controlled to obtain the optimum bearing life. Pressuredrop across the bit should be maintained in excess of 30 psi. Two (2) to ten (10) psi should be added for losses in the system ahead of the bit. For optimum bit life nozzles should be selected to hold pressure near the maximum allowable on the compressor.

4 3/4 5 5 1/8 5 5/8 5 7/8 6 6 1/4 6 3/4 7 3/8 7 7/8 9 9 7/8 10 5/8 12 1/4 13 3/4 15 17 1/2 In.In. mm 121 127 130 143 149 152 159 171 187 200 229 251 261 311 349 381 445 mm

2 3/8 61461

13.06528

14.95562

15.92709

20.08

2 7/8 73390

11.04456

12.91491

13.91638

18.07716

20.28756

21.41

3 1/2 892817.96

3489.86

38210.82

52914.98

60717.19

64818.35

73220.73

90925.74

114932.54

135838.46

187553.10

4 1021785.04

2456.94

2807.93

42612.06

50514.30

54515.43

62917.81

80722.85

104729.65

125535.54

177350.21

4 1/2 114513

14.53691

19.57931

26.37113932.36

165746.93

5 127383

10.85561

15.89802

22.71101028.60

152643.27

197856.02

239767.88

341196.60

5 1/2 140418

11.84658

18.63867

24.55138439.19

183551.97

225463.83

326892.55

6 1/4 159418

11.84626

17.73114432.40

159445.14

201357.01

302785.72

6 5/8 168495

14.02101228.66

146341.43

188253.30

289682.01

7 178873

24.72132337.47

174249.33

275678.05

7 3/4 197571

16.17102228.94

144140.81

245569.53

351799.59

8 5/8 219631

17.87105029.74

206458.45

335895.09

9 229870

24.64188453.35

294683.42

10 250136638.69

242868.75

340996.54

10 3/4 273941

26.65200456.75

298584.54

13 330152743.24

3744106.03

13 1/2 343338295.78

13 3/4 349319790.54

CFM CU-M/MIN

Bit SizePipeSize

Bailing Velocity Chart (Delivered air volume CFM required for bailing velocity of 5,000 FPM

For the most effective holecleaning a minimum bailingvelocity of 5000 feet per minute isconsidered desirable. The simpleformula Q=AV can be applied todetermine the volume flow of air(Q) necessary to give the desiredvelocity (V). (A) is the area of thehole through which the cuttingsladen air flows. This area is thearea of the hole less the area filledby the drill pipe. The table showngives the delivered air volumenecessary to provide a bailingvelocity of 5,000 feet per minute.This volume is calculated for themost common bit and pipe sizes.For dense materials, this volumeshould be increased in order toyield optimum cleaning efficiency.

2 2D - d

mining & construction

Documents