When you need to drill - gf harrison consulting

When you need to drill Quick guide to surface drilling

Bo-Göran JohanssonVice President MarketingSurface Drilling Equipment

2

Atlas Copco Surface Drilling Equipment is today the number one supplier of percussive drilling rock excavation equipments. The strength of our product portfolio is that we can offer almost everything that you expect, from straightforward pneumatic and hydraulic controlled products to automatic drilling systems. From wagon drills BVB 25 to the market’s most feature-filled product Silenced SmartRig ROC D9C and the most powerful performing products ROC L740CR and ROC L830. We supply the market with the most environment friendly products with high fuel efficiency and sound suppression, together with an excellent operator environment in the ergonomic designed cabins. I can proudly inform you that we have the most wide-spread and efficient service support in the world with numerous aftermarket products like ROC Care and COP Care which provide you with the lowest cost of ownership possible and thereby meet and exceed customer expectations and satisfaction.

Yours sincerely

Need to drill some holes?

3

Drilling methods 7

Tophammer drill rigs 13

COPROD drill rigs 33

Down-the-hole drill rigs 37

Table explanations 50

Diagram preconditions 51

Hole depth specification 53

SmartRig 54

Aftermarket 56

Application and surfaceblast hole drills 61

Choise of drill system 62

Content

4

Drilling methods

Tophammer drillingDrilling method:

The classic tophammer method is renowned for high penetration rates in good drilling conditions. Atlas Copco is developing the method continu-ously.

Exhaustive research into how impact energy can be transmitted into the drill bit in the most efficient way, with least possible stress, has resulted in a new generation of rock drills. Development has been focused on the key component in the rock drill - the piston. The piston length, mass, and ge-ometry have resulted in even faster penetration. The effect is that more rock are crushed with each blow from the piston. Moreover, a double damping system reduces the load on components leading to long service life, at the same time as drill-steel

wear is reduced. In other words, the positive results of faster drill-ing are not counteracted by higher drill steel costs.

An extractor unit is available as a useful accessory for poor rock conditions.

9

Drilling method:COPROD drilling

The COPROD system combines the speed of top-hammer drilling with the precision and long ser-vice life of the down-the-hole method.

Inside each rigid, threaded tube section is an impact rod. It is furnished with stop lugs to hold it in place inside the tube section. The so called COPROD sections are joined together via the other tubes. Since the other tubes transmit rota-tion torque and feed force only, the stress to the threads is minimal and life lenght very long. All negative effects of transmitting the impact energy through the threads are eliminated entirely. The re-sult is high impact power with minimal wear. Since the outer tubes are smooth and flush along the en-tire length of the drillstring, it is almost impossible for jamming to occur.

Practical experience with COPROD has been exceptionally good. The method gives good overall economy, particularly in large-scale production drilling and drilling in broken rock or other demanding rock conditions.

10

Drilling method:Down-the-hole drilling

11

Drills using the down-the-hole method (DTH) are easy to operate and maintain. The method offers a reliable way to drill hard to soft, solid to fissured or fracture rock, and features a hammer piston, which strikes the drill bit with virtually no power loss. Shallow, deep or long holes are drilled with barely any change in capacity. Hammer casing and stiff drill tubes offer good guidance for the hammer and drill bit, minimizing in hole deviation. Thus blasting patterns and use of explosives can be optimized, increasing the yield of rock at a reduced cost per meter or footage drilled. The optimized annulus between the drill tubes and the hole wall ensures efficient hole cleaning under most rock conditions, including long or deep holes or holes filled with water.

Except for blast hole drilling the DTH method is widely used for water well drilling, shallow gas and oil wells, and for geothermal wells. It is also developed for sampling using the Reverse Circulation technique (RC-drilling).

Tophammer drill rigsHole range 25 mm - 140 mm (1” - 51/2”)

Hole range Drill steel type

Hole depth SPmm in m ft m ft

23-35 29/32-13/8 HEX19 3.2 10 3.2 10

27-38 11/16-11/2 HEX22 3.2 10 3.2 10

38-41 11/2-15/8 HEX22 9 29 3.2 10

33-38 15/16-11/2 SR28 2.7 9 2.7 9

38-45 11/2-13/4 SR28 9 29 2.7 9

33-45 15/16-13/4 R32 2.7 9 2.7 9

33-41 15/16-15/8 SR32 2.7 9 2.7 9

41-45 15/8-13/4 SR32 9 29 2.7 9

ROC T15Tophammer

14

15

The ROC T15 does the jobHouse and building foundations• Road and railway construction• Trench blasting• Surface and underground bolthole drilling and • self-drilling anchorsBoulder breaking in surface and underground • applicationsDimension stone quarries•

TophammerBVB 25 TH

1) Max recommended hole depth


Hole depth1) SPmm in m ft m ft

51-76 2-3 R32, T38 20 66 2.7 9

16

300

500

600

400

642½

TophammerROC 203 TH

1) Max recommended hole depth



51-76 2-3 R32, T38 20 66 2.7 9

17

300

500

600

400

642½

CM 470LCTophammer

* CM 470LC - Less Cabin



64-89 21/2-31/2 T38 18 59 3 10

76-89 3-31/2 T45 15 49 3 10

1000

400

600

800

1200

642½

893½

18

TophammerROC D3



ROC D3-01 with rod handling system51-89 2-31/2 R32, T38, T45 17.5 57 3 10

ROC D3-03 with rod adding system51-76 2-3 R32, T38 6.7 22 3 10

ROC D3-03 with rod rack system51-76 2-3 R32, T38 14 46 3 10

ROC D3 with COP 1240 ROC D3 with COP 1640

300

600

900

1200

763

512

642½

893½

300

600

900

1200

763

512

642½

893½

19

TophammerCM 470



64-89 21/2-31/2 T38 18 59 3 10

76-89 3-31/2 T45 15 49 3 10

1000

400

600

800

1200

642½

893½

20

21

TophammerECM 580



64-102 21/2-4 T38, T45 25 82 3 10

1000

500

1500

642½

893½

22

TophammerECM 590-series



ECM 590RC with rod handling system64-115 21/2-41/2 T38, T45, T51 22 72 3 10

ECM 590RR with rod rack system64-102 21/2-4 T38, T45 18.4 60 3 10

ECM 592 with rod handling system64-102 21/2-4 T38, T45 21.5 70 6.61) 221)

1) With 2 x 3.6 m (20 ft) as a starter rod

1000

500

1500

642½

893½

1154½

TophammerECM 585



64-102 21/2-4 T38, T45 25 82 3 10

1000

500

1500

642½

893½

23

ROC D7RRC and ROC D9RRCHole range Drill steel

typeHole depth SP

mm in m ft m ftROC D7RRC

64-115 21/2-41/2 T38, T45 28 92 3 10

89-115 31/2-41/2 T51 21 69 3 10

ROC D9RRC76-115 3-41/2 T45, T51 28 92 3 10

Tophammer

ROC D7RRC ROC D9RRC

500

1000

1500

2000

763

893½

1154½

500

642½

893½

1154½

24

TophammerROC D7 and ROC D9



ROC D764-115 21/2-41/2 T38, T45 28 92 3 10

89-115 31/2-41/2 T51 21 69 3 10

ROC D976-115 3-41/2 T45, T51 28 92 3 10

500

642½

893½

1154½

ROC D7

500

1000

1500

2000

763

893½

1154½

ROC D9

25

TophammerSmartRig ROC D7C/D9C



SmartRig ROC D7C64-102 21/2-41/2 T38, T45 28 92 3 10

89-115 31/2-41/2 T51 21 69 3 10

SmartRig ROC D9C76-115 3-41/2 T45, T51 28 92 3 10

500

642½

893½

1154½

SmartRig ROC D7C SmartRig ROC D9C

1500

500

763

26

Read more about the SmartRig concept at page 54

TophammerECM 660



76-127 3-5 T45, T51 25 82 3 10

1275

500

1000

1500

2000

763

893½

1154½

27

TophammerROC F9



ROC F9 with single section boom89-127 31/2-5 T45, T51 33 108 3.5 12

ROC F9 with folding boom89-127 31/2-5 T45, T51 28 92 3 10

ROC F9 with long feed89-127 31/2-5 T45, T51 36 108 5.4 18

500

1000

1500

2000

893½

1154½

28

TophammerSmartRig ROC F9C



SmartRig ROC F9C with single section boom89-127 31/2-5 T45, T51 33 118 3.5 12

SmartRig ROC F9C with folding boom89-127 31/2-5 T45, T51 28 92 3 10

500

1000

1500

2000

1275

893½

1154½

Read more about the SmartRig concept at page 54

29

TophammerECM 720



102-140 4-51/2 T51, T60 29 95 5.4 18

1000

1500

1024

2000

2500

1154½

1275

1405½

30

TophammerROC L740



89-127 31/2-5 T51 36 118 5.4 18

1000

1500

2000

2500

3000

893½

1154½

31

COPROD drill rigsHole range 90 mm - 180 mm (31/2 ” - 7

1/12”)

COPRODROC F9CR



90-127 31/2-5 CR76, CR89 30 98 3.6 12

1000

1500

2000

2500

1154½

10541⁄8

903½

34

COPRODROC L740CR



ROC L740CR with short feed105-140 41/8-51/2 CR89, CR102 32 105 3.6 12

ROC L740CR with long feed105-127 41/8-5 CR89 37.2 144 7.2 24

115-140 41/2-51/2 CR102 31.2 104 7.2 24

140-165 51/2-61/2 CR127 31.2 104 7.2 24

165-180 61/2-71/12 CR140 31.2 104 7.2 24

35

4000

2000

6000

8000

1275

1526

1807

10541⁄8

Down-the-hole drill rigsHole range 90 mm - 203 mm (31/2” - 8”)

Down-the-holeBVB 25 DTH

Hole range Drill tubeØ mm/in


90-130 31/2-51/8 76/3 50 164 3 10

1) Max depth, subject to rock formation and drill string weight38

3”

4”

tonnes x 1000

400

600

800

1000

115 mminch

100Ø

3 15⁄16 4 ½

1200

130903 ½ 5 1⁄8

Compressor 14 bar (170 psi)

Down-the-holeROC 203 DTH



90-130 31/2-51/8 76/3 50 164 3 10

1) Max depth, subject to rock formation and drill string weight 39

3”

4”

tonnes x 1000

400

600

800

1000

115 mminch

100Ø

3 15⁄16 4 ½

1200

130903 ½ 5 1⁄8

Compressor 14 bar (170 psi)

Down-the-holeCM 348



90-140 31/2-51/2 76-89/3-31/2 70 230 3 10

1) Max depth, subject to rock formation and drill string weight40

3”4”

1405 ½

5”

tonnes x 1000

400

800

1200

1600

115 mminch

100Ø

3 15⁄16 4 ½

2000

130903 ½ 5 1⁄8

3”

4”

1405 ½

5”

tonnes x 1000

400

800

1200

1600

115 mminch

100Ø

3 15⁄16 4 ½

2000

130903 ½ 5 1⁄8

Compressor 14 bar (200 psi) Compressor 20 bar (290 psi)

Down-the-holeCM 351



90-140 31/2-51/2 76-89/3-3 1/2 60 200 3 10

1) Max depth, subject to rock formation and drill string weight 41

CM 351 12 bar CM 351 18 bar

3”4”

1405 ½

5”

tonnes x 1000

400

800

1200

1600

115 mminch

100Ø

3 15⁄16 4 ½

2000

130903 ½ 5 1⁄8

3”

4”

1405 ½

5”

tonnes x 1000

400

800

1200

1600

115 mminch

100Ø

3 15⁄16 4 ½

2000

130903 ½ 5 1⁄8

Down-the-holeROC P55



90-140 31/2-51/2 76-89/3-31/2 75 250 3 10

1) Max depth, subject to rock formation and drill string weight

ROC P55 12 bar

3”4”

1405 ½

5”

tonnes x 1000

400

800

1200

1600

115 mminch

100Ø

3 15⁄16 4 ½

2000

130903 ½ 5 1⁄8

3”

4”

1405 ½

5”

tonnes x 1000

400

800

1200

1600

115 mminch

100Ø

3 15⁄16 4 ½

2000

130903 ½ 5 1⁄8

ROC P55 18 bar

42

Down-the-holeROC P65



110-165 45/16-61/2 76-114/3-41/2 150 500 3 10

1) Max depth, subject to rock formation and drill string weight

4”

5”

1405 ½

1526

1656½

6”

tonnes x 1000

400

800

1200

1600

mminch

Ø

2000

1301104 5⁄16 5 1⁄8

4”

5”

1405 ½

1526

1656½

6”

tonnes x 1000

400

800

1200

1600

mminch

Ø

2000

1301104 5⁄16 5 1⁄8

ROC P65 12 bar ROC P65 18 bar

43

Down-the-holeROC F6



85-130 33/8-51/8 76-89/3-31/2 36 118 4 13

3”

4”

tonnes x 1000

400

600

800

1000

115 mminch

100Ø

3 15⁄16 4 ½

1200

130903 ½ 5 1⁄8

44

Down-the-holeCM 765



90-152 31/2-6 76-89/3-31/2 39.4 129 4 13

3”4”

1405 ½

5”

tonnes x 1000

500

1000

1500

2000

115 mminch

100Ø

3 15⁄16 4 ½

2500

130903 ½ 5 1⁄8

1526

45

Down-the-holeROC L625 and ROC L630



ROC L625

90-130 31/2-51/8 76-89/3-31/2 45 148 5.4 18

ROC L630

90-152 31/2-6 76-102/3-4 45 148 5.4 18

ROC L625 ROC L630

3”

4”

1405 ½

5”

tonnes x 1000

1000

1500

2000

115 mminch

100Ø

3 15⁄16 4 ½

2500

130903 ½ 5 1⁄8

1526

3000

3”4”

1405 ½

5”

tonnes x 1000

1000

1500

2000

115 mminch

100Ø

3 15⁄16 4 ½

2500

130903 ½ 5 1⁄8

1526

3000

46

CM 785Down-the-hole



89-102 31/2-6 89-102/31/2-4 39.4 129 4 13

4”

5”

1405 ½

1526

1656½

6”

tonnes x 1000

1500

2000

2500

3000

mminch

Ø

3500

1301104 5⁄16 5 1⁄8

47

Down-the-holeROC L825 and ROC L830


Hole depth SP1)

mm in m ft m ftROC L825 with short feed110-178 45/16-7 89-114/31/2-41/2 45 148 5.4 18

165-178 61/2-7 127-140/5-51/2 25 82 5.4 18

ROC L830 with short feed110-178 45/16-7 89-114/31/2-41/2 45 148 5.4 18

165-203 61/2-8 127-140/5-51/2 25 82 5.4 18

1) With a longer starter tube

ROC L825 with long feed110-178 45/16-7 89-114/31/2-41/2 55.5 177 7.5 18

165-178 61/2-7 127-140/5-5 1/2 31.5 98 7.5 18

ROC L830 with long feed110-178 45/16-7 89-114/31/2-41/2 55.5 177 7.5 25

165-203 61/2-8 127-140/5-51/2 31.5 98 7.5 25

48



ROC L825RC and ROC L830RC110-152 43/8-6 102-114/4-41/2 54 177 6 20

4”

5”

6”

tonnes x 1000

4500

4000

3500

3000

2500

2000

1500

mminch

Ø110 115 130 134 140 152 156 16545/16 41/2 51/8 51/4 51/2 6 61/8 61/2

1787

1000

4”

5”

6”

tonnes x 1000

45004000

3500

3000

2500

2000

1500

mminch

Ø110 115 130 134 140 152 156 16545/16 41/2 51/8 51/4 51/2 6 61/8 61/2

1787

2038

1000

49

ROC L825 RC and ROC L830RC

With its 54 m (177 ft) drill depth capability, the ROC L8RC easily al-lows defined boundaries of ore bodies. Knowing where the ore bodies start and end makes it possible to blast and excavate ore and waste separately and mix ideal ratios of ore and rock into the crusher. With an upgrading kit ROC L825/30 LF can be converted into RC-drilling as well as the ROC L8RC may be used for blast hole drilling when RC drilling is not at hand.

ROC L825 ROC L830

Table explanation

Recommended hole range at extension drilling. At 1. one rod drilling/Single pass drilling (SP) with top-hammers smaller hole diameters may be used. Check with your Atlas Copco representative.Recommended drill rod type (tophammer drills), 2. COPROD section (COPROD drills) or drill tube di-ameter (DTH-drills).Max hole depth with a fully loaded rod/tube han-3. dling system plus one starter rod/tube. Stated hole depths with ROC L6/L8 rigs includes longer starter tubes.Max hole depth at Single pass drilling (SP) with 4. same size drill steel as loaded into the handling systems. Stated SP capacity with ROC L6/L8 rigs includes a longer starter tube. A longer starter rod/tube may also be used on other rigs too. Check with your Atlas Copco representative.



1 1 2 3 3 4 4

50

1 shift - 7 hours effective drilling time

shifts/year 250

long term utilization 80%

Availability 90%

rock density 2.6 t/m3

terrain fairly flat

explosive Anfo

The diagrams are intended to be used as a guide. They do not represent any guarantees in terms of production capacity, as rock characteristics and specific worksite environment may differ widely in each specific case.

The upper curve represents medium hard rock with a compressive strength of 140-160 MPa and the lower hard-er rock with a compressive strength of 220-240 MPa.

Higher production volumes will be reached in softer rock, of less than 140-160 MPa, but for safe hole cleaning, efficient dust collection and reduce in hole deviation (top-hammers) a restriction of the output power of the rock drills may be called for.

Due to higher density and higher energy content, emul-sion explosives may deliver substantially more rock per meter drilled, in comparison to ANFO, which form the ba-sis of the diagrams.

Diagram preconditions

drill bit diAmeter bench height

51 mm 2” 8 m 26 ft

64 mm 21/2” 10 m 32 ft

76 mm 3” 12 m 39 ft

89 mm 31/2” 15 m 49 ft

102 mm 4” 18 m 59 ft

115 mm 41/2” 18 m 59 ft

127 mm 5” 18 m 59 ft

140 mm 51/2” 18 m 59 ft

152 mm 6” 18 m 59 ft

165 mm 61/2” 18 m 59 ft

178 mm 7” 18 m 59 ft

203 mm 7” 18 m 59 ft

51

Atlas Copco rigs offer storage systems for fast and ef-ficient handling of drill steel. The storage capacity is suf-ficient to cover hole depths occurring during blast hole drilling.

RHS - Rod handling system RHS includes a carousel storage of a varying number and sizes of drill rods (tophammer rigs), COPROD sec-tions (COPROD drills) or drill tubes (DTH-drills).

RAS - Rod adding system RAS includes gripper arms adding one drill rod (top-hammer) to the starter rod. This system may also be used with COPROD-rigs and DTH-rigs.

RR - Rod rack system (tophammer rigs)The RR is mounted to the side of the feed, holding a few manually handled drill rods.

TR - Tube rack system (DTH rigs)For pneumatic DTH rigs there are optional hydraulic el-evated racks available, but for manual handling of drill tubes. Note: Specified hole depths in the tables are based on the capacity of the drill steel handling systems. Deeper or longer holes may be drilled by recharging the system with additional rods or tubes. Deeper or longer holes for specialised drill operations are usually done with DTH rigs.

Hole depth specification

53

A SmartRig drill rig replaces manual hydraulic valves by electrical valves precision controlled by a computer control system. Atlas Copco has developed a platform where components and functions can be shared on all machines and rig types; this is called RCS, Rig Control System.

Reuse of components, both hardware and software, re-sults in well-tested and stable systems. The continuous development of new applications combines efforts and helps to increase the availability and efficiency. Not to mention the ease of training of service personnel for our customers.

54

Easy troubleshooting and maintenance• - Modules status available in display - Individual valve and sensor status available

High productivity due to consistent quality• - Consistent setup due to AutoPos - Fast consistent rod adding due to AutoRHS

Unprecedented safety and ergonomics • - “Dry Cabin” without hydraulics reduces heat and leaks - Lower sound level with no hoses in the cabin

Superior documentation• - Fast and easy planning - Reports creates good and easy reporting /invoicing

55

Aftermarket

ServicesAtlas Copco is committed to total customer satisfaction. We offer solutions ranging from basic spare parts and service to fully managed service agreements with satel-lite monitoring.

Long term partnerThe real measure of a drilling investment is the lowest cost per tonne of rock – a direct result of equipment availability and drilling capacity. To contribute to profit and growth, even the best equipment needs mainte-nance. Therefore Atlas Copco provides different ser-vice level agreements that give construction and mining companies all over the world the security they need to focus on doing a good and effective job. One example is ROC Care, a service agreement for Atlas Copco sur-face drill rigs that ensure you to drill as planned. An-other example is COP Care, a guarantee of rock drill availability and optimized rig performance. Global and local presenceWe are a global organization acting locally where our competencies are needed the most. Our well trained service technicians ensure that the service is done pro-fessionally and in time. We have a supply chain that provides spare parts and components in shortest pos-sible time.

56

ROC Care and COP Care

The faster you drill and blast, the more effective and profitable you are. Equipment performance and avail-ability are essential if you are going to push the limits. That’s why we offer ROC Care and COP Care – two service agreements for preventive maintenance for drill rigs and rock drills respectively.

ROC Care Professional preventive drill rig maintenance ensures that you always drill as planned. ROC Care is tailor made for the construction and quarry business and gives you:

Scheduled service• Inspection protocol• Extended warranty• Satellite monitoring•

COP Care Professional preventive rock drill maintenance en-sures that you drill more meters per day. A full-service agreement for rock drills, it answers the specific needs of small to medium-sized quarry- and construction con-tractors for responsive, professional preventive mainte-nance. COP Care gives you:

Scheduled service • Optimized rig performance • Overhaul protocols • Extended warranty • Remote monitoring•

57

We can advise our customers accurately on the Total Cost of Ownership for any Atlas Copco equipment and give detailed technical advice and training that will allow the end user to optimize their equipment.

Our focus is to maximize the utilization of the Atlas Copco equipment for our customers as well as optimize the performance of the products. By doing this we can reduce the risk, reduce the cost, increase uptime and increase the profit for our customers. TCO includes:

Availability• Operating cost:•

- Fuel consumption - Spare part costs - Maintenance cost

Simplicity in:• - Operation - Maintenance

Productivity•

Total cost of ownership

Application and surface blast hole drills

ROC L825

CM 785ROC P65

Rotary / DTH

Rotary

CM 765ROC L625

DTH

COPROD

Tophammer

Tophammer / fully pneumatic

DTH / fully pneumatic

Dimension Stone IndustryConstruction

AggregateIndustrial minerals (Cement & Limestone)

GoldCoal

1" 2" 3" 4" 5" 6" 7" 8" 9" 10" 11"229mm

12" 13" 14"127mm 152mm 178mm 203mm25mm 51mm 76mm 102mm 406mm

PV-351

381mm16"15"

DM-M3

305mm 330mm 356mm254mm 279mm

PV-271/PV- 275

Atlas Copco large rotaryand DTH drill rigs are notincluded in this book. For

more information visit:www.atlascopco.com/

blastholedrills or contactyour Atlas Copco representative

DMLSPT4BH

DM45DM 30

DM 25SPROC L830

DML

PV-235

ROC L7CR

Copper

ROC F6ROC L740

ROC 203 DTH

Iron

CM 351

ROC P55

BVB 25 DTH

ECM 720ROC L630

ECM 585

ROC F9CRROC F9/F9C

ECM 660

CM 348

ROC T15BVB 25

ECM 580CM 470

ROC D3ROC 203

ROC D9/D9RRC/D9CROC D7/D7RRC/D7CECM 590/592

ROC L825

CM 785ROC P65

Rotary / DTH

Rotary

CM 765ROC L625

DTH

COPROD

Tophammer

Tophammer / fully pneumatic

DTH / fully pneumatic

Dimension Stone IndustryConstruction

AggregateIndustrial minerals (Cement & Limestone)

GoldCoal

1" 2" 3" 4" 5" 6" 7" 8" 9" 10" 11"229mm

12" 13" 14"127mm 152mm 178mm 203mm25mm 51mm 76mm 102mm 406mm

PV-351

381mm16"15"

DM-M3

305mm 330mm 356mm254mm 279mm

PV-271/PV- 275

Atlas Copco large rotaryand DTH drill rigs are notincluded in this book. For

more information visit:www.atlascopco.com/

blastholedrills or contactyour Atlas Copco representative

DMLSPT4BH

DM45DM 30

DM 25SPROC L830

DML

PV-235

ROC L7CR

Copper

ROC F6ROC L740

ROC 203 DTH

Iron

CM 351

ROC P55

BVB 25 DTH

ECM 720ROC L630

ECM 585

ROC F9CRROC F9/F9C

ECM 660

CM 348

ROC T15BVB 25

ECM 580CM 470

ROC D3ROC 203

ROC D9/D9RRC/D9CROC D7/D7RRC/D7CECM 590/592

61

62

Choise of drill system

33 38 41 45 48 51 64 76 89 102 115 127 1401 5/16" 1 1/2" 1 5/8" 1 3/4" 1 7/8" 2" 2 1/2" 3" 3 1/2" 4" 4 1/2" 5" 5 1/2"

SR 28 (Ø 1 1/8") 2 1 2 2

SR 32 (Ø 1 1/4") 1 2R32 (Ø 1 1/4") 1 2 2T38 (Ø 1 1/2") 1 2 2T45 (Ø 1 3/4") 1 2 3T51 (Ø 2") 1 2 2 2T60 (Ø 2 ") 2 1 2 2

90 95 102 105 110 115 127 140 152 165 1803 1/2" 3 3/4" 4" 4 1/8" 4 5/16" 4 1/2" 5" 5 1/2" 6" 6 1/2" 7 1/12"

CR 76 ( Ø 3") 2 1 2

CR 89 (Ø 3 1/2") 2 1 2

CR 102 (Ø 4") 2 1 2

CR 127 (Ø 5") 2 1 2

CR 140 (Ø 5 1/2") 2 190 95 100 105 110 115 125 130 134 140 152 156 165 171 178 191 203

3 1/2" 3 3/4" 3 15/16" 4 1/8" 4 5/16" 4 1/2" 4 15/16" 5 1/8" 5 1/4" 5 1/2" 6" 6 1/4" 6 1/2" 6 3/4" 7" 7 1/2" 8"

Ø 76 Thread API 2 3/8" Reg 2 2 1 1 2 2 3 3

Ø 89 Thread API 2 3/8" Reg 2 1 1 2 2

Ø 102 Thread API 2 7/8" Reg 2 1 2

Ø 114 Thread API 3 1/2" Reg 2 2 2 1 1 2 2 3 3

Ø 127 Thread API 3 1/2" Reg 2 2 1 1 2 2

Ø 140 Thread API 4 1/2" Reg 1 1

Most valid at tophammer drilling.

* Other bit diameters, on request

2 Suitable3 Possible but not recommendable

Down The Hole Drill Tube

Tophammer Drill Rod

COPROD Section

Drill Steel Selection Chart Drill Bit Diameter* mm/inchBlast Hole Diameter/

1 Optimum. Keeping hole quality / hole straightness and hole cleaning in mind.

33 38 41 45 48 51 64 76 89 102 115 127 1401 5/16" 1 1/2" 1 5/8" 1 3/4" 1 7/8" 2" 2 1/2" 3" 3 1/2" 4" 4 1/2" 5" 5 1/2"

SR 28 (Ø 1 1/8") 2 1 2 2

SR 32 (Ø 1 1/4") 1 2R32 (Ø 1 1/4") 1 2 2T38 (Ø 1 1/2") 1 2 2T45 (Ø 1 3/4") 1 2 3T51 (Ø 2") 1 2 2 2T60 (Ø 2 ") 2 1 2 2

90 95 102 105 110 115 127 140 152 165 1803 1/2" 3 3/4" 4" 4 1/8" 4 5/16" 4 1/2" 5" 5 1/2" 6" 6 1/2" 7 1/12"

CR 76 ( Ø 3") 2 1 2

CR 89 (Ø 3 1/2") 2 1 2

CR 102 (Ø 4") 2 1 2

CR 127 (Ø 5") 2 1 2

CR 140 (Ø 5 1/2") 2 190 95 100 105 110 115 125 130 134 140 152 156 165 171 178 191 203

3 1/2" 3 3/4" 3 15/16" 4 1/8" 4 5/16" 4 1/2" 4 15/16" 5 1/8" 5 1/4" 5 1/2" 6" 6 1/4" 6 1/2" 6 3/4" 7" 7 1/2" 8"

Ø 76 Thread API 2 3/8" Reg 2 2 1 1 2 2 3 3

Ø 89 Thread API 2 3/8" Reg 2 1 1 2 2

Ø 102 Thread API 2 7/8" Reg 2 1 2

Ø 114 Thread API 3 1/2" Reg 2 2 2 1 1 2 2 3 3

Ø 127 Thread API 3 1/2" Reg 2 2 1 1 2 2

Ø 140 Thread API 4 1/2" Reg 1 1

Most valid at tophammer drilling.

* Other bit diameters, on request

2 Suitable3 Possible but not recommendable

Down The Hole Drill Tube

Tophammer Drill Rod

COPROD Section

Drill Steel Selection Chart Drill Bit Diameter* mm/inchBlast Hole Diameter/

1 Optimum. Keeping hole quality / hole straightness and hole cleaning in mind.

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When you need to drill - gf harrison consulting

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