ROTARY DRILLING BITS AND DRILL STRING TOOLS

Transcription

1 ROTARY DRILLING BITS AND DRILL STRING TOOLS

2 Linking drill bit to drill rig To drill a good hole, you need the right drill rig, tools, and bits for your specific application, and you have to have them all working together. Sandvik Mining and Construction provides this complete package, including a wide range of durable rotary tools and bits. For many, and from our early days as pioneers in rock tools, the name Sandvik is synonymous with drilling tools. We now have one of the broadest offerings in the industry, including premium quality drill pipe, rotary subs and adapters, stabilizers, deck bushings, shock subs, and of course rotary bits. As the world s premier supplier of roller cone bits, we provide products and expertise to improve drilling results across a full range from 172 to 406 mm holes (6 3/4 to 16 inches). With both air and sealed bearing bits, carbide grades and insert geometries with cutting structures optimized for all conditions, you can trust Sandvik to increase efficiency, keep the bit operating reliably and offer high performance in very Many of the features in this brochure are designed for a specific drilling condition, and therefore a particular feature may only be available on certain drill bits. In addition, many optional value-added features are available if the drilling conditions at your mine warrant their use. For in-depth information, request a complimentary Product Bulletin to learn more about each bit s dominant features and operating parameters. Sandvik offers a variety of services designed to improve your drilling process. Our service offering includes: On-site support and services Drill rig air and weight measurements Drill rig rotation speed Product selection Wear evaluation RP425 water separating bit sub support and training Classroom training TRAINING Sandvik is pleased to offer customers on site support, including training for appropriate use of the RP425 water separating bit sub associated with common drilling practices. Contact your local Sandvik product specialist for more details about all of the product service offerings in your area When you purchase a Sandvik product you receive much more than a drill bit or a drill string tool. The Sandvik experience includes service and support during and after the sale. Although Sandvik has a global footprint, it is local by design. Our sales and product specialists are stationed in your communities so we can understand your needs and deliver solutions efficiently and responsively. Your local Sandvik team is supported by application engineers who work together with a focus to improve your drilling operation. Page 2 Page 19

3 materials and reliability testing Sandvik Rotary Tools has two Materials and Reliability testing laboratories throughout the world, one located in Sandviken, Sweden and one in Sandvik Asia Limited located at Patancheru, in Hyderabad, India. RP442 shock sub Top (spindle) sub starter pipe Materials and Reliability engineers are industry leading experts in the areas of materials and the science of maximizing product reliability. These Sandvik experts work closely with suppliers to identify optimum material properties and insure quality standards. As a result, you receive a full range of high performance drilling tools. tool joints Sandvik tool joints are manufactured from premium grade or modified heat-treated material for maximum wear resistance and life. The tool joints are fitted to the tube body using a proprietary process that ensures concentricity and axial alignment. RP412 series premium drill pipe HARD MATERIAL WEAR PROTECTION (optional) Based on your application, hard material wear protection can prove to be a cost-effective option when applied either radially or axially on the tool joints as well as the lower portion of the tube. Sandvik prides itself on being your total solutions provider and preferred partner of choice. In line with this value, our high performance drilling tools provide longer life and the lowest overall operating costs. Great performing products backed by Sandvik s global reach of experienced and dedicated personnel make Sandvik the natural choice as your drill string components solutions provider. RP434 Rotary deck bushing RP447 rotating roller stabilizer RR220 Rotary bit Page 18 Page 3

4 RR220 The RR220 family of drill bits runs on a modularized air bearing platform using a standard package of drill bit features that provide cost effective drilling. The product line incorporates all of Sandvik s construction, manufacturing, and materials expertise to provide high quality and reliable performance. Cutting structure designs are based on proven configurations for most applications. RR321 RR220 availability selection chart Softest Formation Hardest Formation Most Aggressive Bit CUTTING STRUCTURE TYPE Least Aggressive Bit Approx. Wt. mm inch kg/lb X07 X10 X20 X30 X40 X47 X50 X60 X / / 42 X X / / 56 X / / 77 X X X X / 94 X X X / / 130 X X / / 148 X / / 216 X The new RR321 bearing system has evolved from one of the best performing air bearing bits in the surface mining industry. Because these bearings are capable of long operating hours, our engineers have applied a systems approach to the drill bit technology. Tiered rotary bits offering built on modular principles with configurable features based on the application. RR321 availability selection chart Softest Formation Most Aggressive Bit Bit Size Approx. Wt. Hardest Formation CUTTING STRUCTURE TYPE Least Aggressive Bit mm inch kg / lb S07 S10 S15 S17 S20 S25 S30 S35 S40 S47 S50 S60 S /4" 19,1 / 42. X X /8" 25,4 / 56 X /8" 34,9 / 77 X X X X X /2" 34,9 / 77 X 229 9" 42,6 / 94 X X X X X X /8" 59 / 130 X X X X X /8" 67,1 / 148 X X X X X X X " 98 / 216 X X /4" 98 / 216 X X X X X X X SIMPLICITY The RP425 is simple to use because it does not require any changes to the drilling parameters, and it eliminates bit sub expenditures. HIGH ALLOY STEEL Because the RP425 uses high alloy steel that has characteristics that make it highly wear resistant, it performs very well in abrasive ground conditions. The RP425 is built to stringent Sandvik material and manufacturing specifications, assuring precise pipe concentricity standards. STANDARD SUBS AND OPTIONAL FEATURES Sandvik offers the RP425 in two standard configurations: Standard cross-over sub 3 or 4 blade reamer with offset blades Optional - Depth reference marks indicators (out of hole) Optional - Wear reference marks indicators (diameter) ORDER CRITERIA Shoulder by shoulder length Diameter Wrenching configuration Pin and box type (for example, 6 5/8" API box and 6" BECO pin) Optional - 3 or 4 blade reamer blades RR /4" 133,4 / 294 X X " 184,2 / 406 X X " 213,2 / 470 X X The RR440 series is the only commercialized no-service-required sealed journal bearing blasthole bit designed for surface mining. It is powered by Charger bearing technology. To maximize the RR440 s bearing technology we created a system of features that harness the latest in material science, engineering, and manufacturing technology. That s why the RR440 series of roller cone bits is the benchmark for drilling excellence. RR440 availability selection chart RP425 recommended for these Air Bearing Dull Bit conditions Softest Formation Most Aggressive Bit CUTTING STRUCTURE TYPE Hardest Formation Least Aggressive Bit mm inch Approx. Wt. lb/kg 07QX2 10QX2 17QX2 20QX2 25QX2 30QX2 35QX2 37QX2 39QX2 40QX2 45QX2 50QX2 59QX2 60QX2 70 QX /4 42 / 19.1 X X /8 77 / 34.9 X X / 42.6 X X X X /8 130 / 59.5 X X X X X X X /8 148 / 67.1 X X X X X X X X X X /4 216 / 98.0 X X X X X X /4 294 / X X / X X Air-Bearing: Failed Cutting Structure: Good condition Air-Bearing: Failed Cutting Structure: 40% remains Note: 1. Working ranges of bit types overlap, please consult your Sandvik product specialist for recommendations. 2. Different carbide grades may be available on many of these bits, please consult your Sandvik product specialist for recommendations. 3. The sizes and types listed in the table above reflect the standard bits that were available at the time we published this brochure. Because we are continually adding new bit sizes and types to our product line, please consult with your Sandvik representative for the most current offerings. Page 4 Page 17

5 RP425 series rotary bit water separation technology The right drill bit for the application SANDVIK BITS BUILT FOR ROCK BREAKING Choosing the correct drill bit is of fundamental importance to successful and economical drilling. Important factors to consider include the surface and compressive strengths, abrasiveness, massiveness and homogeneity of the rock, the desired penetration rate, the capabilities and characteristics of the drill rig, and previous drilling experience at the mine or quarry. PERFORMANCE FOR APPLICATION EXCELLENCE Air-cooled bearing performance is optimized for high hours by utilizing a bearing design that uses advanced metallurgy, proportioning of components, and optimized geometry. The RR220 air bearing bit is powered by technology that continues to evolve to meet the demands of the surface mining industry. Enhancements include improved surface finishes, balanced radial and axial bearing loading, and balanced air flow for maximized cooling. Drill bits operate in an extremely tough environment and attention to detail is crucial when new models are developed. This was clearly the case in the design of the new RR321 drill bit. Just by moving two air holes in the drill bits air bearings a few degrees, performance was increased by 15 percent compared to earlier models. The RR321 major impact is on medium to hard copper, gold and iron formations. RP425 water separating bit sub Longer bit life, fewer bit changes and lower costs Bearings achieve between 25% 90% greater hours when cooled with dry air Reduces bearing surface corrosion caused from water exposure Maintains dust suppression achieved with water injection The Sandvik RP425 water separating bit sub replaces existing bit crossover subs. The RP425 protects bearing life by limiting dust suppression water from entering the bearings. If you are using water to suppress dust generated during the drilling process chances are that you are limiting your bit life. The RP425 sub separates the water from the air stream so that dry air goes to the bit and the water is exhausted into the hole above the bit. When the water is exhausted into the annulus of the hole, it combines with the cuttings to control dust. This breakthrough technology solves a problem the mining industry has endured for years: how to use water for dust suppression without sacrificing drill bit performance. When water enters a bearing cavity, it corrodes the steel and can even cause the bearing steel to weaken through hydrogen sulfide embrittlement. The combination of these two events causes higher drilling cost and lower productivity due to shorter bit runs and more frequent bit changes. The extra protection of the RR440 s patented radial shaped dual seal technology delivers extended bearing hours and greater reliability than conventional o-ring seals. The bearing s Kevlar coated excluder seal protects the primary seal from cuttings and debris, making the system virtually bulletproof. Plus, Phinodal bearing sleeves dramatically increase weight and rotation speed capacities. SANDVIK ROLLER CONE SERIES BITS EXCEED THE LIMITS All Sandvik roller bits give the highest possible penetration rate and long service life providing high cutting rates for all rock types. The selection process for correct carbide grade and shape can often be a compromise between penetration and longevity. There is never a compromise on quality. To achieve long life, the bearings must withstand the high axial and radial forces that are used in drilling. The bearing design, geometry and material selection are critical factors that go into the development of new bits. Page 16 Page 5

6 Component features Benefits RR220 RR321 RR440 Interior row inserts : Chisel,Vector, Sculptured wedge inclined chisel (SWIC) and Conical Wide variety of Gage row inserts : Chisel, Radial bow chisel (RBC), QX gage, SWIC, relief gage SWIC, Ollon, Conical and double Conical Patented Trucut gage cutting technology Cutting our way productivity through Chisel TCI (tungsten carbide insert) provides durability and faster cutting action for soft and medium-soft formations. The unique geometry of the vector shaped interior row TCI inserts provide added durability and cutting action for soft and medium-soft formations Sculpturing increases the strength by increasing cross-sectional area and by eliminating sharp edges that cause stress risers which can lead to insert breakage. Ideal for soft and medium-soft formations. Tough conical top inserts in hard rock formations and abrasive rock conditions have a geometrical shape that provides both strength and wear resistance. The chisel gage insert performs well in soft homogenous drilling conditions. Radial Bow chisel is a good choice in soft to medium-soft formations The crest geometry of QX gage inserts with TCI allows sustainability in abrasive conditions The SWIC shape coupled with proprietary TCI grades is a top performer in medium formations Ollon, double conical and relief gage SWIC are shapes for medium-hard to hard formations Conical inserts offer both strength and wear resistance in hard, abrasive rock The Trucut gage system uses SRT semi-round top inserts on the gage, alternating with patented sculptured QX off gage inserts, and SRT heel row inserts which result in maximum gage row wear resistance. Cuts hole wall corner more efficiently Minimizes breakage Longer bit life Higher penetration rate Bit subs Pin Connection Outer Diameter (OD) Standard Length Sub Weight Weight per Unit inch mm inch mm inch lbs kgs lbs / ft kgs/m 2 3/8 API REG / /8 API REG /8 IF / /2 API REG / /2 API REG /2 BECO /2 BECO / or 4 1/2 BECO / or 4 1/2 BECO / /2 BECO /4 BECO / /4 BECO / / BECO / / BECO / BECO / BECO / BECO / BECO / Stabilizers Hole Size Body Diameter Standard Length RP424 RP427 mm inch mm inch mm inch lbs kgs lbs kgs / / / / / / / / / / / / / / /8-9 1/ / /4-9 5/ / / / / / / Extended gage support system Heel row cutting and reaming technology Standard Shot-gunned Dual heel row SRT flat top inserts are used in a standard heel configuration to assist the gage row by trimming and reaming the hole wall Increase gage insert life Reduces wear Improves productivity Deck bushings OD Nominal RP432 Static Weight RP434 Rotary Weight Typical Pipe OD Typical Bit Data mm inch lbs kgs lbs kgs mm inch mm inch / / /4-6 1/ / / / / / / /8-10 3/ / /8-10 3/ /8-12 1/ / /4-13 3/ / /4-13 3/ /4-16 Approximate weight. Actual depends on inside diameter of deck opening. Page 6 Page 15

7 High performance drill string tools Drill string tools Description Benefit Rotary subs and adapters Stabilizers Deck Bushings Sandvik offers a full range of rotary subs and adapters for any drilling needs. Subs are used to connect the various components throughout the entire drill string from the drill bit to the rotary head. They provide a variety of functions such as changing from one thread form to another (cross-over subs), or reducing wear to the threads of components (thread-saver subs). Using special alloy material all subs and adapters are manufactured to the same high quality standards as Sandvik drill pipe. Sandvik rotary subs are available as bit (bottom) subs, top (spindle) subs, cross-over subs and thread-saver subs. RP424 welded blade stabilizers are commonly used to stabilize and control hole deviation. Sandvik stabilizers provide smoother bores and faster penetration rates due to more efficient bit performance. The RP424 welded blade stabilizer offers an integral welded blade design with no moving parts, and a specialized tungsten carbide pad design. Its specific gage tolerances optimize performance and extend bit life. The RP424 is available in a wide selection for various hole and drill string sizes including 3 to 4 blades, and straight or spiral blades. RP427 rotating roller stabilizers provide more reaming and cutting action than a welded blade stabilizer. The RP427 incorporates Sandvik s tungsten carbide inserts, which are resistant to breakage, provide more effective cutting action, and result in more durable life. For maximum rate of penetration, partner the RP427 with Sandvik s roller cone bits. The RP427 roller stabilizer uses the largest possible diameter rollers and bearings that are practical for a specified hole size. This increases the life of the stabilizer as compared to stabilizers with small rollers and bearings. Deck bushings centralize the drill pipe over the hole, prevent misalignment of the bit and drill string, and extend the life of the bit and drill string. Sandvik deck bushings are engineered to run smoothly and provide extended trouble free operation. Specialty high alloy, heat treated material is used throughout the entire deck bushing line. Stringent heat treatment specifications Optimum hard material wear protection on bit subs Hard face material in the 58 to 60 Rockwell C range Hard facing available on all subs (option) RP424 Minimizes rough bores, spiral bores, ledges, and crooked holes Provides smoother bores to minimize particles in hole bottom and reduce re-drill time Best for soft to medium formations in wet or dry conditions RP427 Eliminates scraping and gouging of guiding elements Maintains concentricity Provides adequate stabilization without imposing excessive torque Best for hard and abrasive formations in areas that include broken ground, creating hole wall instability or undergage hole conditions RP432 High alloy, heat treated materials provide longer service life Available for all makes and models of drill rigs high performance Component features Benefits RR220 RR321 RR440 Patented air-bearing technology Removable air tubes Backflow valves Cone wear protection, Patented Ridge Cutter Technology (not available on all bits) Air cooled bearing performance is optimized for high hours by utilizing a bearing design that uses advanced metal technology and effective bit geometry Greater durability and reliability Higher load capabilities Balanced loading Non-metallic removable air tubes allow cleaning of formation from the air passages Extends bearing reliability and life by preventing the ingress of cuttings and water into the bearings. All RR220, RR321 and RR440 bits are configured to accept a backflow valve. The backflow acts as a check valve to prevent cuttings and water from entering the bit bearings when the bit air is turned off. We recommend that all bits use backflow valves. Increased bearing life Cone wear protection, Patented Ridge Cutter Technology (not available on all bits) Ridge cutter technology uses rows of small diameter inserts positioned either between the inserts or in the cone Removes uncut rock ridges preventing excessive cone wear RP432 is a static, non-rotating type deck bushing that has a solid body with no moving parts and replaceable wear sleeves. The sleeves are tack welded into place and are replaced as the sleeves wear. This type of deck bushing is normally used when the drilling application is down-the-hole (DTH). The DTH s application does not require the rpms that are seen in rotary drilling applications. The RP432 static deck bushing is not suggested for use when rotary drilling. RP434 rotary deck bushing is designed with triple race ball bearings, allowing the inner sleeve to rotate as the drill pipe passes through it. This results in less vibration, torque and drill pipe diameter gouging and scraping as compared to a static fixed-type deck bushing. RP434 Triple race ball bearing design insures smoother, longer bearing life Transmits less vibration through the drill string to the rotary head Smooth and quiet drill cab atmosphere More cost effective than static bushings Leg and shirtail protection 1/3 2/3 3/3 The RR220, RR321 and RR440 offer a standard 1/3 leg and shirtail protection feature. The RR321 and RR440 also offers 2/3 and 3/3 protection options when unfavorable drilling conditions shorten bit life. The 2/3 protection feature is designed for drilling in wet and /or dirty hole conditions. Customized to drilling conditions Increased productivity Longer bit life Asymetrical design of leg forgings protects the key bit components and allows for the unimpeded and rapid escape of cuttings from the bottom of the borehole. The preferential orientation of the nozzles offers highly efficient bottom hole cleaning. The larger crosssectional area of the leg allows it to handle today s higher weight and rotation loads. Penetrates better Offers longer bit life Shock subs RP442 shock subs are designed to lower drilling vibrations and prevent them from being transmitted into the rotary drill head and drill bit in mid-size to large drilling rigs. Sandvik s Material and Reliability engineers extensive research efforts have resulted in optimum materials selection to insure premium performance, durability and long life RP442 shock subs use a series of rubberized elements, torsional blocks, and springs to absorb maximum torsional shock while cushioning the axial loads and shock. These shock subs help reduce or eliminate premature rotary head failure, mast fractures, and poor bit life. The end results are lower maintenance costs, improved bit life, and smoother operating conditions. RP422 Shock sub Reduces drill rig mast maintenance Provides smoother on-bottom running Extends bit life Lowers rotary drive head repairs Leg forging Page 14 Page 7

8 Maximum penetration delivering extended operation and reliability Drill pipe availability selection chart This selection guide recommends pipe grades appropriate for various rock hardness and abrasiveness. It also suggests conditions for applying optional hard facing material. Consult your Sandvik product specialist for specific recommendations for your drilling application. Suggested use of hard facing material Component features Benefits RR220 RR321 RR440 Patented Charger QX2 dual-seal air-bearing technology Patented Charger QX2 single-seal air-bearing technology Pin vent pressure compensation system Optimized seal cleaning system Patented W feature Ultra leg and back ream feature The extra protection of RR440 s patented radial shaped dual seal technology delivers extended bearing hours and greater reliability than conventional o-ring seals. The bearing s Kevlar coated excluder seal protects the primary seal from cuttings and debris, making this system virtually bulletproof. Plus, Phinodal bearing sleeves dramatically increase weight and rotation speed capacities Designed for extended bearing hours Withstands higher weight and rotation speed Drills longer and faster for lower overall costs Maintains bottom hole pattern When confronted with room and space constraints in smaller diameter bits, our engineers developed the patented radial shaped dual lobed single seal technology. This technology provides long bearing hours and reliability that cannot be found in a traditional o-ring seal. The outside lobe is coated with Kevlar to protect the inner lobe from debris, leading to longer seal life. Patented Phinodal silver plated bearing sleeves boost weight and rotation speed capabilities. Maintains longer bearing hours Boosts weight and rotation speed capacities Lowers drilling costs The RR440 s pin vent pressure compensation system equalizes the internal bit pressure and external ambient pressure to prevent the ingress of cuttings and loss of lubricant. This standard feature allows grease to thermally expand without bypassing the seal. It is preferentially located on the trailing side of the bit leg so that it can survive the rigors of blasthole drilling. More reliable seal life Delivers long runs The RR440 bits are configured to accept a backflow valve. The backflow acts as a check valve to prevent cuttings and water from entering the bit bearings when the bit air is turned off. We recommend that all bits use backflow valves. Extends bearing reliability and life by preventing the ingress of cuttings and water into the bearings. A patented process applies a proprietary hard material to areas of the cone that are prone to erosion. The W feature helps avoid lost cutting structure and premature bit failure caused by dirty holes or sand blasting from high velocity cuttings Patented process applies special material to minimize cone wear A standard feature on the RR440 series uses proprietary TCI grades of dual round top inserts up the leg, leg shoulder, and on the heel row. They assist the gage inserts in reaming the hole and slow down gage rounding in hard abrasive formations. Patented back reaming inserts on top of the leg allow the bit to drill its way out of collapsing and dirty holes. H A R D E S T R O C K S O F T E S T R O C K L E A S T A B R A S I V E PREMIUM RP412 Series COMBINATION OR MIX RP414 Series Suggested use of hard facing material Sandvik Blasthole Drill Pipe Sizes (O.D.) Outer diameter Wall thickness Tube weight Pin/Box approx. weight Recommended connections mm in mm in kg/m lb/ft kg lb M O S T A B R A S I V E SPECIAL ALLOY ULTRA PREMIUM RP416 Series Suggested bit size range / /8" API REG - API IF 4 5/8" through 5 1/8" / / /2" API REG - 2 7/8" API IF - 4 5/8" through 5 1/8" 3" BECO / / /2" API REG - 2 7/8" API IF - 5 5/8" through 6 1/4" 3" BECO / / /2" API REG - 2.7/8" API IF - 5 5/8 through 6 1/4 3" BECO / /2" BECO 5 5/8" through 6 1/4" / / /2" BECO 6 1/4" through 6 3/4" / " BECO 6 3/4" through 7 7/8" " BECO 7 3/8" through 7 7/8" / / " BECO 7 3/8" through 7 7/8" / / /2" BECO 7 3/8" through 7 7/8" / /2" BECO 7 7/8" / /2" BECO - 5 1/4" BECO 7 7/8" /2" BECO - 5 1/4" BECO 9" / / /4" BECO 9" / /4" BECO 9" through 9 7/8" / " BECO 9" through 9 7/8" / / " BECO 9 7/8" through 11" / " BECO 9 7/8" through 11" / / " BECO 10 5/8" through 11" / " BECO 10 5/8" through 11" / / BECO 12 1/4" through 13 3/4" / / " BECO 12 1/4" through 13 3/4" / " BECO 13 3/4" through 15" / / " BECO 15" through 17 1/2" / / " BECO 15" through 17 1/2" Page 8 Page 13

9 Drill pipe rotary head connect to drilled hole Drill pipe Description Benefit Sandvik drill pipe The drill pipe is the conduit for handling extreme torsional and axial loads to the drilling tools. Because it encounters various abrasive and hardness conditions, the drill pipe s durability and reliability are crucial to the drilling operation. Complete product traceability On-site service and support High durability Versatility in various pipe sizes RR220-RR321-RR440 cutting selection guide Seam-less tubing Sandvik drill pipes are manufactured to the highest quality assurance standards using an optimized combination of tube quality and hard facing materials. They are available in a wide variety of lengths to meet your specific drilling application: Rotary drill pipe Down-the-hole hammer drill pipe Kelly pipe mm (3"- 13 3/8") outer diameter (OD) 0,91-18,3 m (3' - 60' ) lengths Sandvik drill pipe bodies are manufactured from premium quality, heat treated seamless tubing. Sandvik offers a range of high quality material grades to optimize your applications Premium quality, heat treated seamless tubing An optimum combination of tube quality and hard facing material The best value grades for specific applications Shale, Siltstone Sandstone Limestone, Dolomite Gneiss Slate Granite, Marble Basalt Diabase Diorite, Gabbro, Quartzite STEPS Rhyolite, Taconite, Banded Iron Formations 1. Locate ROCK COMPRESSIVE STRENGTH value. 2. Move vertically down to the FORMATION DESCRIPTION LINE that best describes the rock formation. 3. Move horizontally across to the ROCK BIT TYPE. NOTE For faster drilling, use the next smaller bit number. If insert breakage is encountered, use the next larger bit number. EXAMPLE Rock compressive strength 35,000 pounds per square inch and rock breaks easily - a S40 rock bit type is the best first selection. RP416 RP414 RP412 Tool joints The RP416 series ultra premium grade pipe is a special heattreated and quenched alloy. It is designed for hard abrasive formations that cause the body of the pipe to wear out before the tool joints. The physical characteristics, yield, tensile and Brinell hardness of this alloy tube provide more durable, wear resistant mid-body tube than a standard, hot rolled, seamless carbon tube. The RP414 series of drill pipe combines Sandvik s RP416 ultrapremium grade and RP412 premium grade in the midbody of the drill pipe. The ultra premium grade is positioned at the bottom of the drill pipe to help reduce premature wear and diameter reduction due to extreme abrasive conditions. Sandvik s RP412 series premium grade pipe is typically required in non-abrasive formations when the tool joints wear out before the tube. The RP412 series is a ST52 hot-rolled, seamless carbon tube. Sandvik tool joints are manufactured from premium grade or modified heat treated material for maximum wear resistance and life. The tool joints are fitted to the tube body using a proprietary processs that insures concentricity and axial alignment. RP416 More durable Wear resistant mid-body tube RP414 Reduces premature wear and diameter reduction RP412 Typically for non-abrasive formations Premium wear quality Fast make-up of drill bit to pipe Better seating of threads due to accuracy of axial alignment MPa kg/cm 2 10,000 20,000 30,000 40,000 50,000 60,000 70,000 psi ROCK STRENGTH (UCS*) ROCK BREAKS EASILY HOMOGENOUS MATERIAL ROCK BREAKS MODERATELY EASILY BROKEN FORMATION OR SEMI-ABRASIVE ELASTIC CHARACTERISTICS, VERY ABRASIVE ROCK BREAKS WITH DIFFICULTY X07 FASTEST DRILLING RR220 RR321 RR440 X30 X10 X20 X47 X50 S07 S30 S10 S15 S17 S20 S40 S47 S50 07QX2 10QX217QX220QX2 25QX2 30QX2 35QX2 37QX2 40QX2 39QX2 45QX2 50QX2 FORMATION DESCRIPTION LINES X60 X70 S60 S70 59QX2 Hard material wear protection (option) Based on your application, hard material wear protection can prove to be a cost-effective option when applied either radially or axially on the tool joints as well as the lower portion of the tube Better wear on tool joints Radial or axial coverage 60QX2 70QX2 * Unconfined Compressive Strength SLOWEST DRILLING Page 12 Page 9

10 Specifications The right drill string for all your drilling needs RR220 guidelines for weight-on-bit and rotation speed* Bit Size mm (inches) WOB/RPM X07 X10 X20 X30 X40 X47 X50 X60 X70 lb (1 000 s) 10.0 to to to 187 (6 3/4-7 3/8 ) 200 to 229 (7 7/8-9 ) 251 to 279 (9 7/8-11 ) 311 to 349 (12 1/4-13 3/4 ) tonnes 4.5 to to 19.1 rpm 75 to to 110 lb (1 000 s) 8.0 to to to to to 40.0 tonnes 3.6 to to to to to 18.1 rpm 90 to to to to 100 lb (1 000 s) 10.0 to to to to 57.0 tonnes 4.5 to to to to 26.0 rpm 80 to to to 110 lb (1 000 s) 21.0 to to to to 85.0 tonnes 9.5 to to to to 38.5 rpm 65 to to to to 110 lb (1 000 s) 28.0 to to to to 90.0 SANDVIK ROTARY DRILLING TOOLS - ENGINEERED FOR EFFICIENCY Sandvik s rotary drill string products and services are specifically designed for maximizing your surface mining drilling applications: drill pipe, shock subs, stabilizers, deck bushings, sub adapters and related components. You can count on Sandvik drill string components to provide smoother bores and faster penetration rates, resulting in more efficient bit performance. HIGH PERFORMANCE FOR APPLICATION EXCELLENCE 381 to 406 (15-16 ) tonnes 14.5 to to to to 40.8 rpm 110 to to to to 110 * Consult with your Sandvik representative for the best operating parameters for your site conditions. RR321 guidelines for weight-on-bit and rotation speed* Bit Size mm (inches) WOB / RPM S07 S10 S15 S17 S20 S25 S30 lb (1 000's) 10.0 to to 187 (6 3/4" - 7 3/8") tonnes rpm 4.5 to to 120 lb (1 000's) 8.0 to to to to to to to 229 (7 7/8" - 9") tonnes rpm 3.6 to to to to to to to to 120 1b (1 000's) 10.0 to to to to to 279 (9 7/8" - 11") tonnes rpm 4.5 to to to to to to 120 lb (1 000's) 15.0 to to to to to 349 (12 1/4" /4") tonnes rpm 6.8 to to to to to to to 120 lb (1 000's) 28.0 to to 406 (15" - 16") tonnes 12.7 to 38.0 rpm 75 to 120 * Consult with your Sandvik representative for the best operating parameters for your site conditions. RR440 guidelines for weight-on-bit and rotation speed* S47 S50 S60 S to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to to 110 Size: mm (inches) WOB / RPM 07QX2 10 QX2 17QX2 20QX2 25QX2 30QX2 35QX2 37QX2 39QX2 40QX2 45QX2 50QX2 59QX2 60QX2 70QX2 lb (1,000 s) 10.0 to to to 187 tonnes 4.5 to to 21.3 (6 3/4-7 3/8) rpm 75 to to 120 lb (1,000 s) 9.0 to to to to to to to 229 tonnes 4.1 to to to to to to 22.7 (7 7/8-9) rpm 90 to to to to 80 lb (1,000 s) 11.0 to to to to to to to to to to to 290 tonnes 5.0 to to to to to to to to to 36.3 (9 7/8-11 3/8) rpm 80 to to to to to to to to 90 lb (1,000 s) 25.0 to to to to to to to to 349 tonnes 11.3 to to to to to to to 45.4 (12 1/4-13 3/4) rpm 75 to to to to to to to 100 lb (1,000 s) 32.0 to to tonnes 14.5 to to 54.4 (16) rpm 70 to to 110 S to to to to to to 120 S to to to to to to to to to to to to 110 Our products are engineered to efficiently handle the hard rock and abrasive formations commonly found in surface mining drilling. Built to withstand extreme torsional and axial loads, Sandvik drill string components are manufactured with premium quality materials and undergo rigorous product testing. Sandvik offers significant advantages in its high performance drill string components: Extensive in-house materials and reliability engineering expertise Leading technology and intellectual property developments State-of-the-art manufacturing Efficient and reliable delivery times Certified quality process A thorough understanding of drilling and applications Over 20 years of product development history HIGH QUALITY ASSURANCE STANDARDS Sandvik is committed to the highest quality standards in our manufacturing process, resulting in superior end products. Our Quality Assurance program utilizes raw material traceability. In addition, the highly skilled product specialists at our manufacturing facility conduct thorough inspections and test each product to assure we deliver superior quality products to our customers. Critical factors in Sandvik drill string component development and manufacturing include: Stringent material specifications and verification Welding process control and ultrasonic weld inspection Precise pipe straightness specifications and verification * Consult with your Sandvik representative for the best operating parameters for your site conditions. Page 10 Page 11