Christensen CT20 Surface core drill rig for mineral exploration
MODERN DEEP HOLE DRILLING Christensen CT20 has a drilling depth capacity of 2 450 meters. The rig comes truck mounted or crawler mounted, which means it can be easily transported. Despite its power, the Christensen CT20 is easy to operate thanks to an intuitive control panel which makes it easy to control the many automated features. The work environment around the Christensen CT20 has also been a focus throughout the development process. For example, this rig is equipped with a sound reducing engine canopy.
MAIN BENEFITS Safety ensured thanks to safety guards around hot or moving parts Powerful drilling thanks to a large drilling depth capacity and newly designed feed system High efficiency thanks to a sturdy mast, capable of handling 6 meter core barrels
PRODUCTIVITY AT LARGE DEPTHS Christensen CT20 s safety, ergonomic and environmental friendliness make it a perfect choice for surface core drilling anywhere in the world. And thanks to the truck or crawler mounted versions they can be easily transported and maneuvered. + SAFETY AND COMPLIANCE Concern for safety, ergonomics and the environment is more than a competitive advantage it is a requirement in most markets. Our Christensen CT20 is equipped with the required safety guards around hot or moving parts and available with Tier. + PRODUCTIVE AND POWERFUL Christensen CT20 is powerful and easy to operate thanks to a userfriendly control panel with several automated features. A newly designed feed system and a drilling depth capacity of 2 450 meters further enhances productivity. Christensen CT20 is capable of carrying the full weight of the drill string and 6 meter core barrels allowing for more core in the box. + PREMIUM PARTS AND PROFESSIONAL SERVICE Rely on Atlas Copco to provide you with expert machinery as well as all the additional parts and services you may require to get the most out of your investment. We offer a full range of premium drill rods, core barrels, core drill bits and casings. No matter where you work in the world Atlas Copco is at your service with dependable parts and professionals. ATLAS COPCO SERVICE Even the best equipment requires regular service to ensure optimal performance. Atlas Copco provides service solutions to safeguard an optimized relationship between productivity, availability and operational cost. Atlas Copco Mining and Rock Excavation Technique has over 3 300 technicians located in over 80 countries. By combining the usage of Atlas Copco genuine parts with service provided by a certified Atlas Copco technician, you ll have a winning combination no matter of where in the world you operate.
TECHNICAL SPECIFICATIONS Christensen CT20 Main hoist Dimensioned to handle the total rod weight at the maximum drilling capacity. Rotation unit Consists of a hydraulic motor, sealed gearbox, hollow spindle and hydraulic chuck. The rotation speed is adjustable from the control panel. Mast dump Ensures hole straightness by stabilizing the mast when it is raised. DEPTH CAPACITY Standard Thin wall B wireline 2 800 m 9 186 ft 3 290 m 10 793 ft N wireline 2 450 m 8 030 ft 2 880 m 9 448 ft H wireline 1 600 m 5 250 ft 1 950 m 6 397 ft P wireline 1 055 m 3 440 ft 1 240 m 4 068 ft MAIN WINCH Single line capacit, automatic speed adjustment depending on the load Line speed @ max displacement Line speed @ min displacement 178 kn 40 000 lb 34 m/min 72 m/sec 17 ft/min 232 ft/min Cable dimensions telescopic 33 m x 24 mm 108 ft x 1 in Cable dimensions standard 29.5 m x 24 mm 97 ft x 1 in WIRELINE WINCH WITH LEVEL WIND Capacity Line pull, bare drum Line pull, full drum Cable size, bare drum Cable size, bare drum 3 600 m of 4.76 mm 3 000 m of 6.35 mm recommended 18.6 kn 4.2 kn 76 m/min 337 m/min 12 130 ft of ~3/16 in 9 843 ft of 1/4 in recommended 4 181 lb 944 lb 249 ft/min 1 106 ft/min MAST AND FEED SYSTEM POWER UNIT Cummins QSL 9, Diesel turbocharged and Charged Air Cooled Volume 8.9 liter 2.3 gallons Power 224 kw 305 BHP RPM 2 100 2 100 Electrical system 24 V 24 V Sound level Cooling Tier 3: 113 db / Tier 4: 116 db Water Feed stroke 3.5 m 11.5 ft Mast dump 2 m 6.56 ft Thrust 100 kn 22 480 lb Pull 200 kn 45 000 lb Rod pull length 6.09 m or 9.14 m on telescopic mast 20 ft or 30 ft on telescopic mast ROD HOLDER Tier 3: 113 db / Tier 4: 116 db Maximum clamping diameter, PW Casing 139.7 mm 5.50 in Clamping force 200 kn 45 000 lb HYDRAULIC SYSTEM Primary pump 310 bar 295 l/min 4 500 psi 77 gal/min Secondary pump 200 MPa 170 l/min 2 900 psi 38 gal/min Auxiliary pump 215 MPa 55 l/min 3 050 psi 15 gal/min Hydraulic oil cooling Air
TECHNICAL SPECIFICATIONS ROTATION HEAD AND SPINDLE SPEEDS Spindle opening and pass capacity 124 mm 4.88 in Max Torque 8 150 Nm 6 011 ft lb Power 2-speed gear box SPINDLE SPEEDS Hydraulic motor variable speed/reversible Hydraulic slidable rotation unit Ratio Speeds, rpm Torque, Nm Torque, ft lb 1st 17.55:1 50 200 8 175 3 775 6 030 2 784 2nd 2.70:1 350 1 300 1 860 860 1 372 634 CHUCK ASSEMBLY Hydraulic open, spring closed Maximum clamping diameter 124 mm 4.88 in Holding capacity 223 kn 50 132 lbs TRIDO MUD PUMP TRIDO 140H Flow 140 l /min 37 pm Pressure 64 bar 28 psi GROUND PRESSURE (CT20 CRAWLER) OPTIONS 30 ft telescopic mast, 20 ft mast, radio controlled crawler CONTROL PANEL PILOT CONTROLLED The user-friendly and ergonomic control provides following features. Joystick for making & breaking Auto thread compensation Thread compensator to prevent damage on threads when making/braking the joints Engine RPM Feed force and hold back in kn LED screen lighting Rotation working hours Make up torque limitation Constant penetration rate Hold back force and adjustment valve offering accurate and easy setting on weight on bit (WOB) to improve penetration rate and bit life. Water flow and pressure Functional lever Rotation unit RPM 0.80 dan/cm 2 11.52 psi STANDARD EQUIPMENT Hydraulic mast dump Safety guards (with inter-lock User-friendly control panel Hydraulic oil reservoir fill pump & filtration Make and brake with joy-stick Ladder kit with safety system WL winch with Level-wind and Parking Brake Hydraulic jacks (spreadable) Hydraulic rod holder (PW) Fuel tank 950 l (251 gal) High Altitude capacity Hydraulic Mud Mixer Walk ways Hydaulic pressure filters Maintenance platform WORKING DIMENSIONS Christensen CT20 Christensen CT20C Dimension A 8 585 mm 338 in 8 560 mm 337 in B 11 570 mm 456 in 11 570 mm 456 in C 650 mm 26 in 122 mm 5 in D 1 320 mm 52 in 1 043 mm 41 in E 3 710 mm 146 in 3 470 mm 137 in F 7 630 mm 300 in 7 630 mm 300 in G 10 940 mm 431 in 10 940 mm 431 in H 14 420 mm 568 in 14 420 mm 568 in WEIGHT Dimension CT20 Complete rig, wet 18 000 kg 40 000 lb CT20C Complete rig, wet 23 500 kg 52 000 lb TRANSPORT DIMENSIONS (TOP MAST REMOVED) Christensen CT20 Christensen CT20C Dimension I 2 500 mm 98 in 500 mm 20 in J 3 200 mm 126 in 2 500 mm 98 in K 11 600 mm 457 in 11 600 mm 457 in L 3 560 mm 140 in 3 752 mm 148 in M 2 670 mm 105 in 2 864 mm 113 in N 2 410 mm 95 in 2 602 mm 102 in O 3 438 mm 135 in 3 438 mm 135 in P 5 500 mm 217 in 5 500 mm 217 in Q 2 624 mm 103 in 2 624 mm 103
TECHNICAL SPECIFICATIONS 90 90 45 45 B H B H A A C D F G E D D C F G E I J I J K K I J L M K M Q N L L M O P N O P Q O P Q
6991 1766 01c 2016-11 Örebro, Sweden. Legal Notice Copyright 2016, Atlas Copco Rock Drills AB, Örebro, Sweden. All product names in this publication are trademarks of Atlas Copco. Any unauthorized use or copying of the contents or any part thereof is prohibited. Illustrations and photos may show equipment with optional extras. No warranty is made regarding specifications or otherwise. Specifications and equipment are subject to change without notice. Consult your Atlas Copco Customer Center for specific information. COMMITTED TO SUSTAINABLE PRODUCTIVITY We stand by our responsibilities towards our customers, towards the environment and the people around us. We make performance stand the test of time. This is what we call Sustainable Productivity. www.atlascopco.com