Global Standard Turning Center

Global Standard Turning Center

PUMA GT2100 series PUMA GT2100 is a Global Standard Turning Center created with DOOSAN s vast experience and technical prowess to become the world s leading turning center on the market. Global Standard Turning Center 02

Features: 1 Enhanced Productivity with High Speed, High Rigidity Structure - Tool service life is further extended by a high rigidity, low vibration structure design - Higher spindle acceleration/deceleration and shorter tool replacement time 2 Easy and Convenient Operation - Compact installation and user-oriented design guarantees excellent accessibility, operability, and maintainability 3 Eco-Friendly Design, Minimized Owner s Cost - Automatic power off/shutdown and LED lighting in addition to minimized power consumption rate of major units - New concept in oil-water separation extends service life of cutting fluid Power Consumption Previo us Previous Models PUMA GT2100 * Based on data from manufacturer self-testing 19% * 03

High Speed, High Rigidity Structure The bed optimized with computer analysis provides high-level of rigidity by application of box-type guideway. Productivity has been enhanced by higher spindle acceleration/deceleration and shorter tool changing time. PUMA GT2100 series High Rigidity Bed Cast design optimized with 3D computerized analysis has successfully increased natural frequency by as much as 42% compared to previous models. Stable cutting performance with minimized cutting vibration has been achieved in addition to extended tool service life. Wide ribs and a box-type slideway further reinforce bed rigidity. The distance between cutting point and slideway ensures an optimized layout to minimize vibration. Spindle s Center of Gravity Slide s Center of Gravity Comparison of Bed Rigidity Comparison of Bed Slideway Deformation by Carriage Position Stable rigidity is provided by an optimal cast design that has increased natural frequency by 42% compared with previous models. PUMA GT2100 Previous Models 42% Deformation PUMA GT2100 Previous Models Position of Slide on Slideway Up to 3 times higher static rigidity than previous models 04

Spindle Motor 18.5 kw Max. Spindle Speed GT2100 / M 4500 r/min GT2100B / MB 3500 r/min Rapid Travel Speed X-axis 24 m/min ( 944.9 ipm ) Z-axis 30 m/min ( 1181.1 ipm ) High Rigidity, Low Inertial Spindle An optimized spindle overhang design has minimized the rotational inertial load, enhanced rigidity, and shortened acceleration/deceleration time. Previous Models 4.37 / 3.38 s PUMA GT2100 3.79 / 3.18 s Note: Spindle acceleration/deceleration times are based on the same drive motor ( 0 > Max, Max > 0 ) High Rigidity Feeding Structure The optimized feeder layout in addition to a feeder design with a low center of gravity produces stable feed at high travel speed and soft feed at low travel speed. A newly designed turret driven with a high-efficiency servo motor guarantees powerful machining and stable tool change performance at high speed. 0.15 s Note: Indexing time ( 1 station swivel ) 05

Easy and Convenient Operation Ease of operation and convenience has been significantly improved with an ergonomic, modular design. A compact design structure allows for higher levels of productivity in a smaller space. PUMA GT2100 series Maximizing Available Space 2940 ( 115.7 ) Unit: mm ( inch ) Installation area has been reduced by 15% from previous models. Previous Models 5.2 m 2 PUMA GT2100 4.57 m 2 12% 4.57 m 2 1555 ( 61.2 ) Comfortable Accessibility Unit: mm ( inch ) Access to the tool post is optimized for the operator s convenience. 390 ( 15.4 ) 1030 ( 40.6 ) EZ function Simple tool setter function which memorizes the previous fix position of the tail stock ensuring that the carriage moves to the fixed tail stock position automatically whenever necessary. EZ automatic tail stock function The Z axis can monitor the position of the tail stock. When the tail stock has been moved, the Z axis can be moved to the fixed tail stock position by pressing a button on the control panel. This makes the task of positioning the tail stock much easier. EZ tool setter function When a tool touches the tool setter in automatic or manual mode, the necessary axis comes forward at a constant speed to touch the tool and returns automatically. 06

Easily Cleaned Coolant Tank The coolant ( cutting fluid ) tank can be drawn out without removing the chip pan and conveyor. The user can clean the tank easily. Excellent Maintainability The cover has been redesigned to be easily removed for convenient service access. Full Sliding Cover Application of a full cover is to prevent the heat of chips from being transferred to the bed and guideway. The guideway can be protected and chips can be removed easily. 07

Eco-Friendly Design to Reduce Costs Enhanced energy efficiency lowers operating costs and protects the environment PUMA GT2100 series Hydraulic Unit Energy-saving, eco-friendly unit is 23% more efficient compared with previous models. Power consumption ( 2Hr ) Previo Previous Models PUMA GT2100 1.3 kwh 1.7 kwh 23% LED Work Light and Signal tower LED lamps provide high energy efficiency even at low voltage and have more than 10 times the lifespan of halogen lamps. LED Work Lamp LED Signal tower 08

Power Consumption Previous Models 32.6 kva PUMA GT2100 29.04 kva 11% Automatic Light Switch The work light automatically turns off after 10 minutes of no switch operation on the operator s panel. Work light ON Work light turns off automatically After 10 minutes Automatic Shutdown Function Coolant tank motor stops Spindle, servo motor stop Chip conveyor motor stops If there has been no switch operation input on the operator's panel for 10 minutes, the spindle, servo motor, chip conveyor motor, and coolant tank motor, are all automatically shut down to save energy and protect the machine. Oil Skimmer A new oil skimmer with excellent oil-water separating performance extends coolant service life. Dust is minimized to improve the work environment. 09

Basic Mechanism Spindle The optimized spindle overhang design has minimized rotational inertial load, enhanced rigidity, and shortened acceleration/ deceleration time. In addition, the front bearing ( a high-speed, high-precision, angular ball bearing ) minimizes heat generation and enables stable spindle drive even after long, high speed operation. Slide Stable feed of the slide is achieved by a low-inertial design with a low center of gravity. The axis is driven by a large diameter, high precision ball screw supported by high precision bearings in addition to employing a double-anchor pretension system that minimizes thermal expansion at high speed, high accuracy, and high rigidity. New Tool Post Concept High Reliability BMT Turret ( PUMA GT2100M / MB ) The tool post driven by a high-efficiency servo motor provides greater reliability with a reduced number of parts. The tool drive with a minimized number of parts is cooled with air and oil, thus generating much less heat. Noise from the bevel gear is significantly reduced to enable long periods of milling work at high speed, thus improving both productivity and accuracy. The BMT55P tooling is strongly fixed to the turret with four bolts and keys to provide powerful machining performance with high efficiency, high rigidity, and a high precision internal drive system. Stable performance is guaranteed even after extensive milling work. Max. speed of rotating tool 5000 r/min Max. power output of rotating tool 5.5 kw ( 7.4 Hp ) Max. torque of rotating tool 47.1 N. m ( 34.8 ft-lbs ) Output :kw(hp) 5.5 kw (7.4Hp) (10 min. S3 25%) 47.1 N.m (34.8 ft-lbs) 1.1kW(1.5kW)/Cont. 14N.m(10.3 ft-lbs) 3.7 (5.0) 2.2 (3.0) 0.9 (1.2) 750 1115 2500 4000 5000 Spindle speed (r/min) 10

Splash Guard The front door is provided with safety devices on the upper and lower guide to protect the operator. The door remains firmly on the machine even in an emergency situation. Chip Conveyor Hinge type, Magnetic scraper type and Screw type chip conveyors are available and the direction of chip discharge can be selected to backward-right or backward as appropriate. General type chip conveyor - Hinge type, Magnetic scraper type Screw type chip conveyor In case of Screw type chip conveyor, the length of protrusion is reduced by as much as 20% than those of conventional chip conveyors to optimize available space. The chips are compressed and discharged by a screw reduced by more than 75% in volume. Easy handling of the chips is possible as the coolant is not discharged with the chips. Coolant Chiller Heat generated from cutting is transferred to the machine, which causes thermal deformation and deterioration in machining accuracy. The coolant cooling system controls the temperature of the cutting fluid to minimize thermal deformation and maintain high machining accuracy. The system is highly recommended for high-pressure cutting fluid pumps or non-water-based cutting fluid to achieve high-accuracy machining. 11

Easy CNC Set-up and EOP Easy Set-up 1 3 4 2 6 5 Operating Console 1 2 3 4 5 6 Doosan-Fanuc i series 10.4" color TFT LCD monitor Large 10.4" LCD screen showing error messages of the machine and controller improves operator s work convenience. PCMCIA Card USB Port Ethernet Connectivity ( embedded ) Swing-type Panel The operation panel can swing up to 88 to provide the operator with convenience during work. Previous Models EOP ( Easy Operation Package ) Programming G Code List Description of G Code can be displayed on the screen when necessary. M Code List Description of M Code can be displayed on the screen when necessary. Calculator Automatic calculation including cutting size and conditions. Operation / Maintenance Tool Load Monitor To prevent mechanical damage when feeding, the wear or fracture of tools is detected according to pre-set load limits of the spindle and shafts. Operation Rate - User Log In The function to measuring and monitoring the rate of machine operation. Back Up Custom Data The function to save the acquired load information per item from the tool load monitor to the tool table. Information stored can be reloaded for use in the tool load monitor. Interactive Programming The EZ Guide i supports the entire operation of the NC machining tool from programming, to checking by animation, to processing after programming including tool compensation and coordinate system measurement, and the inspection of finished parts. Program error can be identified by animation. The ISO code programming is the most popular type for NC machine tools enhanced compatibility with CAD/CAM. Integrated Operation Window Lathe Machining Cycle Actual Processing Simulation Tool Data Management Function 12

High Performance PUMA GT2100 Series provides high machining performance in a wide variety of cutting processes. OD Turning Carbon steel ( SM45C ) unit PUMA GT 2100 GT 2100B Chip removal rate cm 3 /min ( inch 3 /min ) 551 ( 33.6 ) 519 ( 31.6) Cutting speed m/min ( ipm ) 210 ( 8267.7 ) 210 ( 8267.7 ) Feedrate mm/rev 0.55 0.55 Spindle speed r/min 965 563 Cutting depth mm ( inch ) 4.5 ( 0.2 ) 4.5 ( 0.2 ) U-drill Carbon steel ( SM45C ) unit PUMA GT 2100 GT 2100B Chip removal rate cm 3 /min ( inch 3 /min ) 472 ( 28.8 ) 567 ( 34.6 ) Cutting speed m/min ( ipm ) 200 ( 7874 ) 200 ( 7874 ) Feedrate mm/rev 0.15 0.18 Spindle speed r/min 1010 1011 U-drill diameter mm ( inch ) 63 ( 2.5 ) 63 ( 2.5) End mill Carbon steel ( SM45C ) PUMA GT 2100M Chip removal rate cm 3 /min ( inch 3 /min ) 90 ( 5.5 ) Cutting speed m/min ( ipm ) 60 ( 2362.2 ) Feedrate mm/min ( ipm ) 250 ( 9.8 ) Spindle speed r/min 1060 Cutting depth mm ( inch ) 20 ( 0.8 ) Tool diameter mm ( inch ) 18 ( 0.7 ) unit Tapping Carbon steel ( SM45C ) PUMA GT 2100M Tap size M20 x P2.5 Cutting speed m/min ( ipm ) 15 ( 590.6 ) Feedrate mm/min ( ipm ) 600 ( 23.6 ) Spindle speed r/min 240 unit Face mill Carbon steel ( SM45C ) unit PUMA GT 2100M Chip removal rate cm 3 /min ( inch 3 /min ) 27 ( 1.7 ) Cutting speed m/min ( ipm ) 120 ( 4724.4 ) Feedrate mm/min ( ipm ) 190 ( 7.5 ) Spindle speed r/min 1011 Cutting depth mm ( inch ) 4 ( 0.2 ) Tool diameter mm ( inch ) 63 ( 2.5 ) The above data is based on the manufacturer testing and may vary according to operating conditions. 13

Main Spindle Power - Torque Diagram Main Spindle Power - Torque Diagram ( GT 2100 / M ) Max. spindle speed 4500 r/min Main spindle motor power ( 15min. / cont. ) 18.5 / 15 kw ( 24.8 / 20.1 Hp ) TORQUE (N m (ft-lbs)) 1000 100 313.4 N m (231.3 ft-lbs) S3 15min. 25% 254.1 N m (187.5 ft-lbs) S3 60min. 40% 190.4 N m (140.5 ft-lbs) Cont. 18.5 kw (24.8 Hp) S3 15min. 25% 15 kw (20.1 Hp) S3 60min. 40% Cont. 10 9 7.5 OUTPUT (kw (Hp)) 10 100 563 751 2254 1000 Spindle speed (r/min) 1 4500 Main Spindle Power - Torque Diagram ( GT 2100B / MB) Max. spindle speed 3500 r/min Main spindle motor power ( 15min. / cont. ) 18.5 / 15 kw ( 24.8 / 20.1 Hp ) TORQUE (N m (ft-lbs)) 1000 100 401.2 N m (296.1 ft-lbs) S3 15min. 25% 325.3 N m (240.1 ft-lbs) S3 60min. 40% 244 N m (180.1 ft-lbs) Cont. 18.5 kw (24.8 Hp) S3 15min. 25% 15 kw (20.1 Hp) S3 60min. 40% Cont. 10 9 7.5 OUTPUT (kw (Hp)) 10 100 440 587 1000 1761 Spindle speed (r/min) 1 3500 14

External Dimensions GT 2100 / M Top view Front view 2744 ( 108.0 ) ( 13.4 ) 73 ( 2.9 ) 1555 ( 61.2 ) 775 ( 30.5 ) SPINDLE CENTER 105 ( 4.1 ) 300 ( 11.8 ) 2744 ( 108.0 ) 2744 ( 108.0 ) 341 ( 13.4 ) 73 ( 2.9 ) 1555 ( 61.2 ) 775 ( 30.5 ) 341 ( 13.4 ) 73 ( 2.9 ) 1555 ( 61.2 ) 775 ( 30.5 ) 105 ( 4.1 ) 105 ( 4.1 ) GT 2100B / MB Top view Front view SPINDLE CENTER 4FT COVER 4FT COVER 90 ( 3.5 ) 90 ( 3.5 ) ELECTRIC POWER INLET 88 ELECTRIC POWER INLET 88 AIR INLET 2610 800 ( 31.5 ) 1035 ( 40.7 ) 568 ( 22.4 ) 775 ( 30.5 ) 710 ( 28.0 ) ( DOOR OPEN SPACE ) 700 ( 27.6 ) ( AUTO DOOR OPEN SPACE ) 90 ( 3.5 ) 2640 ( ELECTRIC 103.9 ) POWER INLET 2940 ( 115.7 ) 3478( 136.9 ) 262 ( 10.3 ) 613 (24.1) 245 ( 9.6 ) 570 (22.4) 538 (21.2) 1700 ( 66.9 ) AIR INLET 2610 ( 102.8 ) 800 ( 31.5 ) 1035 ( 40.7 ) 568 ( 22.4 ) 775 ( 30.5 ) 710 ( 28.0 ) 700 27.6 ) ( DOOR OPEN SPACE ) ( AUTO DOOR OPEN SPACE ) 262 ( 10.3 ) 613 ( 24.1 ) 245 ( 9.6 ) 2610 ( 102.8 ) 800 ( 31.5 ) 1035 ( 40.7 ) 568 ( 22.4 ) 775 ( 30.5 ) 710 ( 28.0 ) 700 27.6 ( DOOR OPEN SPACE ) SPINDLE CENTER 345 ( 13.6 ) ( AUTO DOOR 2640 OPEN ( 103.9 SPACE ) 570 ( 22.4 ) 2985 ( 117.5 ) 538 ( 21.2 ) 3523 ( 138.7 ) 88 AIR INLET 250 ( 9.8 ) 1310 ( 51.6 ) 1310 ( 51.6 ) 250 ( 9.8 ) 250 ( 9.8 ) 1310 ( 51.6 ) 1700 ( 66.9 ) 262 ( 10.3 ) 613 ( 24.1 ) 245 ( 9.6 ) 1700 ( 66.9 ) SIDE SCREW CONVEYOR SIDE SCREW CONVEYOR SIDE SCREW CONVEYOR Side view Coolant Tank Disassembly Space Side view 670 ( 26.4 ) 417 ( 16.4 ) 1030 ( 40.6 ) PUMA GT2100 / PUMA GT2100M SIDE SCREW CONVEYOR SPINDLE CENTER 73 ( 2.9 ) 390 ( 15.4 ) 1165 ( 45.9 ) 1628 ( 64.1 ) 3105 ( 122.2 ) 1030 ( 40.6 ) 670 ( 26.4 ) 417 ( 16.4 ) Unit: mm ( inch ) Coolant Tank 73 ( 2.9 ) 390 ( 15.4 ) 1165 ( 45.9 ) Disassembly 1628 ( 64.1 ) Space 3105 ( 122.2 ) 15

Tooling System PUMA GT2100 Unit: mm ( inch ) / PUMA GT2100B O.D Tool Clamper Extended O.D Tool Holder O.D Tool 25 Boring Bar Sleeves Face Tool Holder 12st. Turret I.D Tool Holder ( H40 ) ø 10 ( 0.375" )-H40 ø 12 ( 0.5" )-H40 ø 16 ( 0.625" )-H40 ø 20 ( 0.75" )-H40 ø 25 ( 1.0" )-H40 ø 32 ( 1.25" )-H40 Boring Bar ø 40 Boring Bar OPT. Drill Sockets MT#1-H40 MT#2-H40 MT#3-H40 Drill ø 40 (1.5") U-Drill Cap U-Drill U-Drill Sleeves ø20 ( 0.75" )-H40 ø25 ( 1.0" )-H40 ø32 ( 1.25" )-H40 PUMA GT2100B O.D Tool Clamper Extended O.D Tool Holder O.D Tool 25 Boring Bar Sleeves Face Tool Holder 10st. Turret I.D Tool Holder ( H40 ) ø 10 ( 0.375" )-H40 ø 12 ( 0.5" )-H40 ø 16 ( 0.625" )-H40 ø 20 ( 0.75" )-H40 ø 25 ( 1.0" )-H40 ø 32 ( 1.25" )-H40 Boring Bar ø 40 Boring Bar OPT. Drill Sockets MT#1-H40 MT#2-H40 MT#3-H40 Drill ø 40 ( 1.5" ) U-Drill Cap U-Drill U-Drill Sleeves ø20 ( 0.75" )-H40 ø25 ( 1.0" )-H40 ø32 ( 1.25" )-H40 16

Unit: mm ( inch ) PUMA GT2100M / GT2100MB O.D Tool 25 Boring Bar Sleeves ø 10 ( 0.375" )-H40 ø 12 ( 0.5" )-H40 ø 16 ( 0.625" )-H40 ø 20 ( 0.75" )-H40 ø 25 ( 1.0" )-H40 ø 32 ( 1.25" )-H40 Single OD Tool Holder Boring Bar U-Drill Sleeves Face Tool Holder ø20 ( 0.75" )-H40 ø25 ( 1.0" )-H40 ø32 ( 1.25" )-H40 U-Drill Cap U-Drill OPT. Single ID Tool Holder Drill Sockets MT#1-H40 MT#2-H40 MT#3-H40 BMT 55P Turret Drill OPT. Straight Milling Head for Side Cutting Collet Adapter Angular Milling Head for Face Cutting Milling Arbor Adapter Dummy Plug Weldon Adapter Collet ( ER25 ) ( ø2~ø16 ) 17

Working Ranges, Tool Interference Diagram PUMA GT2100 Working Ranges Unit: mm ( inch ) OD Tool Extended OD Tool 45 103 580 (22.8) (Z-AXIS TRAVEL) 7 (0.3) 45 103 580 (22.8) (Z-AXIS TRAVEL) 7 (0.3) (1.8) (4.1) (1.8) (4.1) 575 (22.6) (Z-AXIS REP.ROINT) 5 (0.2) 575 (22.6) (Z-AXIS REP.ROINT) 5 (0.2) 195 (7.7) 35 (1.4) 20 (0.8) 40 (1.6) 415 (16.3) 63 92 (2.5) (3.6) 103 (4.1) (QUILL TRAVEL) 80 (3.1) 103 (4.1) 115 (4.5) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 115 (4.5) 80 (3.1) 90 (3.5) 140 (5.5) 75 (3.0) 68 92 (2.5) (3.6) (QUILL TRAVEL) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 40 55 (1.6) (2.2) 415 (16.3) ID Tool Face Tool 45 105 580 (22.8) (Z-AXIS TRAVEL) 45 65 580 (22.8) (Z-AXIS TRAVEL) 45 (1.8) (4.1) (1.8) (2.6) (1.8) 575 (22.6) (Z-AXIS REP.ROINT) 5 (0.2) 575 (22.6) (Z-AXIS REP.ROINT) 5 (0.2) 200 (7.9) 30 (1.2) 15 (0.6) 63 90 (2.5) (3.6) 103 80 (QUILL TRAVEL) (4.1) (3.1) 115 (4.5) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 35 (1.4) 415 (16.3) 178 (7.0) 52 (2.0) 37 (1.5) 68 130 103 (2.5) (5.1) (QUILL TRAVEL) 80 (4.1) (3.1) 115 (4.5) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 415 (16.3) Tool Interference Diagram Ø 550 (21.7) (Max, tool swing) 27.2 (1.1) Ø169 (6.7) Ø197 (7.8) 50 7 (2.0) 415 (16.3) Ø40 (1.6) 35 (1.4) (X-axis travel) 30 (1.2) 26 (1.0) 200 (7.9) 26 (1.0) 50 (2.0) Ø185 (7.3) Ø 390 (15.4) (Max. turning dia.) Ø 210 (8.3)(Main Spindle / 8-inch chuck) Ø 254 (10.0) (Main Spindle / 10-inch chuck) 55 (2.2) 40 (1.6) 18 23 (0.9) 180 (7.1) Ø238 (9.4) 58 (2.3) 195 (7.7) 35 (1.4) (X-axis travel) 40 (1.6)

PUMA GT2100M Working Ranges Unit: mm ( inch ) OD Tool ID Tool 45 (1.8) 55 (2.2) 45 (1.8) 580 (22.8) 55 (2.2) (Z-AXIS 580 TRAVEL) (22.8)(Z-AXIS 7 (0.3) TRAVEL) 7 (0.3) 45 (1.8) 67 (2.6) 45 (1.8) 580 (22.8) 67 (2.6) (Z-AXIS 580 TRAVEL) (22.8)(Z-AXIS 26 TRAVEL) (1.0) 45 (1.8) 575 55 (Z-AXIS (22.6)(Z-AXIS (2.2) TRAVEL) 580 575 REP.POINT) (22.8) (22.6)(Z-AXIS (Z-AXIS TRAVEL) 5 REP.POINT) (0.2) 7 (0.3) 5 (0.2) 45 (1.8) 580 67 45 (1.8) (2.6) (22.8) 575 67 (Z-AXIS 580 (22.6) (2.6)(Z-AXIS (22.8) TRAVEL) 580 (Z-AXIS 575 REP.POINT) (22.8) (22.6)(Z-AXIS REP.POINT) TRAVEL) (Z-AXIS TRAVEL) 5 (0.2) 26 (1.0) 26 (1.0) 5 (0.2) 45 (1.8) 48 (1.9) 45 580 (1.8) (22.8) 575 48 (Z-AXIS (22.6)(Z-AXIS (1.9) TRAVEL) 580 575 REP.POINT) (22.8) 40 (22.6)(Z-AXIS (1.6) (Z-AXIS TRAVEL) 5 REP.POINT) (0.2) 40 (1.6) 5 (0.2) (Z-AXIS REP.POINT) 575 (22.6)(Z-AXIS REP.POINT) 5 (0.2) 575 (22.6)(Z-AXIS 575 (22.6) REP.POINT) 575 (Z-AXIS (22.6) REP.POINT) (Z-AXIS 5 (0.2) REP.POINT) 5 (0.2) 5 (0.2) 575 (22.6)(Z-AXIS REP.POINT) 575 (22.6)(Z-AXIS 5 (0.2) REP.POINT) 5 (0.2) 26 (1.0) Face Tool 45 (1.8) 48 (1.9) 45 (1.8) 58048 (22.8) (1.9) (Z-AXIS 580 TRAVEL) (22.8)(Z-AXIS 40 (1.6) TRAVEL) 40 (1.6) 103(4.1) 103(4.1) 80 (3.1) 150 (5.9) 60 (2.4) 80 (3.1) 150 230 (5.9) (9.1) 60 80 (2.4) (3.1) 150 (5.9) 100 (3.9) 60 (2.4) 100 (3.9) 100 (3.9) 50 (2.0) 180 (7.1) 50 (2.0) 180 (7.1) 30 (1.2) (X-AXIS 30 (1.2) TRAVEL) 50 (2.0) 180 230 (7.1) (9.1) 50 30 (2.0) (1.2) 180 (7.1) 30 (1.2) 70 (2.8) 70 (2.8) 80(3.1) 77 (3.0) (QUILL 140 TRAVEL) 80(3.1) (5.5) (QUILL TRAVEL) 103(4.1) 103(4.1) 77 (3.0) 80(3.1) 77 128 (3.0) (5.0) (QUILL 128 TRAVEL) 80(3.1) (5.0) (QUILL TRAVEL) 115 (4.5) 80(3.1) 103(4.1) 115 580 (4.5)(22.8) 80(3.1) (TAIL STOCK 580 (22.8) TRAVEL) (QUILL(TAIL TRAVEL) STOCK 80(3.1) TRAVEL) (QUILL TRAVEL) 103(4.1) 115 103(4.1) (4.5) 80(3.1) 103(4.1) 115 580 (4.5)(22.8) 80(3.1) (TAIL 80(3.1) STOCK 580 (22.8) TRAVEL) (QUILL 80(3.1) (TAIL TRAVEL) STOCK (QUILL 80(3.1) TRAVEL) (QUILL TRAVEL) 77 (3.0) 140 (5.5) 77 (3.0) 140 (5.5) 77 (3.0) 128 (5.0) 77 (3.0) 128 (5.0) 70 (2.8) 70 (2.8) 103(4.1) 82 (3.2) 148 (5.8) 65 (2.6) 82 (3.2) 148 (5.8) 65 (2.6) 82 (3.2) 148 230 (5.8) (9.1) (X-AXIS 7 (0.3) TRAVEL) 95 (3.7) 65 82 (2.6) (3.2) 148 (5.8) 65 (2.6) 7 (0.3) 95 (3.7) 10 (0.4) 10 (0.4) 103(4.1) 67 (2.6) 147 (5.8) 80(3.1) 67 (2.6) (QUILL 147 TRAVEL) 80(3.1) (5.8) (QUILL TR 10 (0.4) 10 (0.4) 103(4.1) 115 (4.5) 80(3.1) 103(4.1) 115 580 (4.5)(22.8) 80(3.1) (TAIL 80(3.1) STOCK 580 (22.8) TRAVEL) (QUILL(TAIL TRAVEL) STOCK 80(3.1) TRAVEL) (QUILL TRAVEL) 95 (3.7) 7 (0.3) 95 (3.7) 7 (0.3) 67 (2.6) 147 (5.8) 67 (2.6) 147 (5.8) 115 (4.5) 80(3.1) (TAIL STOCK 580 TRAVEL) (22.8)(TAIL STOCK TRAVEL) 115 (4.5) 80(3.1) 115 (4.5) 115 580(3.1) (4.5) (22.8) 80(3.1) (TAIL 580 STOCK (22.8) 580 TRAVEL) (TAIL (22.8) STOCK (TAIL TRAVEL) STOCK TRAVEL) 115 (4.5) 80(3.1) 115 580 (4.5) (22.8) 80(3.1) (TAIL STOCK 580 TRAVEL) (22.8)(TAIL STOCK TRAVEL) Straight Milling Angular Milling 45 (1.8) 143 (5.6) 45 (1.8) 580 143 (22.8) (5.6)(Z-AXIS 580 TRAVEL) (22.8)(Z-AXIS TRAVEL) 45 (1.8) 63.6(2.5) 45 (1.8) 58063.6(2.5) (22.8)(Z-AXIS 580 TRAVEL) (22.8)(Z-AXIS TRAVEL) 45 (1.8) 580 (22.8) 143 575 (5.6) (Z-AXIS (22.6)(Z-AXIS TRAVEL) 580 575 REP.POINT) (22.8) (22.6)(Z-AXIS REP.POINT) (Z-AXIS TRAVEL) 5 (0.2) 5 (0.2) 45 (1.8) 45 580 (1.8) (22.8) 575 63.6(2.5) (Z-AXIS (22.6)(Z-AXIS TRAVEL) 580 575 REP.POINT) (22.8) (22.6)(Z-AXIS REP.POINT) (Z-AXIS TRAVEL) 5 (0.2) 5 (0.2) 575 (22.6)(Z-AXIS REP.POINT) 575 (22.6)(Z-AXIS REP.POINT) 5 (0.2) 575 (22.6)(Z-AXIS REP.POINT) 575 (22.6)(Z-AXIS 5 (0.2) REP.POINT) 5 (0.2) 103(4.1) 103(4.1) 29 (1.1) 201 (7.9) 9 (0.4) 29 (1.1) 201 (7.9) 29 (1.1) 9 (0.4) 201 2 (7.9) (0.1) 80(3.1) 77 (QUILL (3.0) TRAVEL) 52 80(3.1) (2.0) (QUILL TRAVEL) 115 (4.5) 80(3.1) 103(4.1) 115580 (4.5)(22.8)(TAIL 80(3.1) 80(3.1) STOCK 580 (22.8)(TAIL TRAVEL) (QUILL TRAVEL) STOCK 80(3.1) TRAVEL) (QUILL TRAVEL) 9 (0.4) 49 (1.9) 49 (1.9) 77 (3.0) 52 (2.0) 77 (3.0) 52 (2.0) 49 (1.9) 180 (7.1) 50 (2.0) 17 (0.7) 70 (2.8) 50 (2.0) 180 230 (7.1) (9.1) 50 (2.0) 180 (7.1) 17 (0.7) 70 (2.8) 5 (0.2) 5 (0.2) 103(4.1) 103(4.1) 80(3.1) 72 (2.8) (QUILL 131.4 TRAVEL) 80(3.1) (5.2) (QUILL TRAVEL) 5 (0.2) 103(4.1) 115 (4.5) 80(3.1) 103(4.1) 115 580 (4.5)(22.8) 80(3.1) (TAIL 80(3.1) STOCK 580 (22.8) TRAVEL) (QUILL(TAIL TRAVEL) STOCK 80(3.1) TRAVEL) (QUILL TRAVEL) 70 (2.8) 17 (0.7) 70 (2.8) 70 (2.8) 72 (2.8) 131.4 (5.2) 72 (2.8) 131.4 (5.2) 70 (2.8) 580 115 (22.8)(TAIL (4.5) 80(3.1) STOCK 580 TRAVEL) (22.8)(TAIL STOCK TRAVEL) 115 (4.5) 80(3.1) 115 580 (4.5) (22.8) 80(3.1) (TAIL STOCK 580 TRAVEL) (22.8)(TAIL STOCK TRAVEL) 5.4)(Max. turning dia.) Tool Interference Diagram Ø 549 (21.6) (Max. tool swing) Ø199 (7.8) Ø 7 (0.3)95 (3.7) 49 (1.9) Ø60 (2.4) 16 (0.6) 70 (2.8) 26 (1.0) Ø40 (1.6) 415 (16.3) (X-axis travel) 50 (2.0) 180 (7.1) 26 (1.0) 70 (2.8) Ø227 (8.9) Ø185 (7.3) Ø 300 (11.8)(Max. turning dia.) Ø 210 (8.3)(Main Spindle / 8-inch chuck) Ø 254 (10.0)(Main Spindle / 10-inch chuck) 28 (1.1) 50 (2.0) Ø225 (8.9) Ø 210 (8.3)(Main spindle / 8-inch chuck) Ø 254 (10.0)(Main spindle / 10-inch chuck) Ø249 (9.8) 23.5 (0.9) 58 (2.3) 150 (5.9) 80 (3.1) 165 (6.5) 60 (2.4) (X-axis travel) 40 (1.6) 19

Working Ranges, Tool Interference Diagram PUMA GT2100B Working Ranges Unit: mm ( inch ) OD Tool Extended OD Tool 48 100 (1.9) (3.9) 580 (22.8) (Z-AXIS TRAVEL) 7 (0.3) 575 (22.6) (Z-AXIS REP.POINT) 5 (0.2) 48 100 (1.9) (3.9) 580 (22.8) (Z-AXIS TRAVEL) 7 (0.3) 575 (22.6) (Z-AXIS REP.POINT) 5 (0.2) 117 (4.6) 112 (4.4) ID Tool 80 (3.1) 195 (7.7) 35 (1.4) 63 92 (2.5) (3.6) (QUILL TRAVEL) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 200 (7.9) 20 (0.8) 40 (1.6) 35 (1.4) 220 (8.7) 415 (16.3) 90 (3.5) 140 (5.5) 178 (7.0) 75 (3.0) 68 92 (2.7) (3.6) 117 (QUILL TRAVEL) 80 (4.6) (3.1) 112 (4.4) 580 (22.8) (TAIL STOCK TRAVEL) 48 102 580 (22.8) (Z-AXIS TRAVEL) 48 62 580 (22.8) (Z-AXIS TRAVEL) 45 (1.8) (1.9) (4.0) (1.9)(2.4) 575 (22.6) (Z-AXIS REP.POINT) 5 (0.2) 575 (22.6) (Z-AXIS REP.POINT) 5 (0.2) 30 (1.2) 15 (0.6) 215 (8.5) 415 (16.3) 63 90 68 130 (2.5)(3.5) (2.7) (5.1) 117 80 (QUILL TRAVEL) 117 (QUILL TRAVEL) 80 (4.6) (3.1) (4.6) (3.1) 112 (4.4) 580 (22.8) (TAIL STOCK TRAVEL) 112 (4.4) 580 (22.8) (TAIL STOCK TRAVEL) 80 (3.1) Face Tool 80 (3.1) 80 (3.1) 52 (2.0) 37 (1.5) 57 40 55 (2.2) (1.6) (2.2) 237 (9.3) 275 (10.8) 415 (16.3) 415 (16.3) Tool Interference Diagram 10 st. turret 415(16.3) 12 st. turret Ø550(21.7) (Max, tool swing) 27.2 (1.1) Ø208 (8.2) 50(2.0) 7 (0.3) Ø241(9.5) 230(9.1) 230(7.9) Ø40 (1.6) 35(1.4) (X-axis travel) 30 26 (1.0) (1.2) 26 (1.0) 50(2.0) Ø228(9.0) 390(15.4) Ø (Max. turning dia.) Ø (Main Spindle / 10-inch chuck) 254(10.0) Ø550(21.7) (Max, tool swing) 27.2 (1.1) Ø197 (7.8) 7 50 (2.0) Ø169 (6.7) 55 (2.2) (1.6) 415(16.3) 40 (1.6) Ø 35 (1.4) 26 (1.0) (X-axis travel) 200 (7.9) 30 (1.2) 26 (1.0) 50 (2.0) Ø 185 (7.3) Ø390 (15.4) (Max. turning dia.) Ø254 (10.0) (Main Spindle / 10-inch chuck) 40 23 (0.9) 55(2.2) 40(1.6) Ø 282(11.1) 58 (2.3) 195(7.7) 35(1.4) 180 (7.1) 40(1.6) 230(9.1)(X-axis travel) 23 (0.9) Ø238 (9.4) 58 (2.3) 195 (7.7) 35 (1.4) 180 (7.1) 40 (1.6) (X-axis travel) 20

PUMA GT2100MB Working Ranges Unit: mm ( inch ) OD Tool ID Tool Face Tool 44 (1.7) 56 580 (22.8) (Z-AXIS TRAVEL) 7 (0.3) (2.2) 575 (22.6) (Z-AXIS REP.POINT) 5 (0.2) 44 68 (1.7) (2.7) 580 (22.8) (Z-AXIS TRAVEL) 575 (22.6) (Z-AXIS REP.POINT) 26 (1.0) 5 (0.2) 44 49 (1.7) (1.9) 580 (22.8) (Z-AXIS TRAVEL) 575 (22.6) (Z-AXIS REP.POINT) 40 (1.6) 5 (0.2) 80 (3.1) 150 (5.9) 77 140 (3.0) (5.5) 113 (QUILL TRAVEL) 80 (4.4) (3.1) 116 (4.6) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) Straight Milling 44 144 (1.7) (5.7) 29 (1.1) 201 (7.9) 60 (2.4) 100 (3.9) 50 (2.0) 180 (7.1) 50 (2.0) 180 (7.1) 17 70 30 (1.2) (0.7) (2.8) 580 (22.8) (Z-AXIS TRAVEL) 44 64.6 580 (22.8) (Z-AXIS TRAVEL) 575 (22.6) (Z-AXIS REP.POINT) 5 (0.2) (1.7) (2.5) 575 (22.6) (Z-AXIS REP.POINT) 9 (0.4) 49 (1.9) 77 52 72 (2.8) 131.4 (3.0)(2.0) 5 (0.2) (5.2) 113 (QUILL TRAVEL) 80 113 80 (4.4) (3.1) (QUILL TRAVEL) (4.4) (3.1) 116 (4.6) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 116 (4.6) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 82 148 (3.2) (5.8) 65 (2.6) 77 128 67 (2.6) 147 (5.8) (3.0) (5.0) 10 (0.4) 113 (QUILL TRAVEL) 80 113 80 (QUILL TRAVEL) (4.4) (3.1) (4.4) (3.1) 116 (4.6) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) 116 (4.6) 80 (3.1) 580 (22.8) (TAIL STOCK TRAVEL) Angular Milling 5 (0.2) 70 (2.8) 70 (2.8) 7 95 (0.3) (3.7) Tool Interference Diagram Ø 549 (21.6) (Max. tool swing) Ø199 (7.8) Ø 7 (0.3)95 (3.7) 49 (1.9) Ø60 (2.4) 16 (0.6) 70 (2.8) 26 (1.0) Ø40 (1.6) 415 (16.3) (X-axis travel) 50 (2.0) 180 (7.1) 26 (1.0) 70 (2.8) Ø227 (8.9) Ø185 (7.3) Ø 300 (11.8)(Max. turning dia.) 28 (1.1) 50 (2.0) Ø225 (8.9) Ø 254 (10.0)(Main spindle / 10-inch chuck) Ø249 (9.8) 23.5 (0.9) 58 (2.3) 150 (5.9) 80 (3.1) 165 (6.5) 60 (2.4) (X-axis travel) 40 (1.6) 21

Machine Specifications Capacity Travels Feedrates Main spindle Turret Tail Stock Motors Description Unit PUMA GT2100 PUMA GT2100B PUMA GT2100M PUMA GT2100MB Swing over bed mm ( inch ) 600 ( 23.6 ) Swing over saddle mm ( inch ) 390 ( 15.4 ) Recom. Turning diameter mm ( inch ) 210 ( 8.3 ) 255 ( 10.0 ) 210 ( 8.3 ) 255 ( 10.0 ) Max. Turning diameter mm ( inch ) 390 ( 15.4 ) 300 ( 11.8 ) Max. Turning length mm ( inch ) 562 ( 22.1 ) 550 ( 21.7 ) 513 ( 20.2 ) 501 ( 19.7 ) Chuck size inch 8 10 8 10 Bar working diameter mm ( inch ) 65 ( 2.6 ) 81 ( 3.2 ) 65 ( 2.6 ) 81 ( 3.2 ) Travel distance X-axis mm ( inch ) 230 ( 9.1 ) Z-axis mm ( inch ) 580 ( 22.8 ) C-axis deg - 360 ( 14.2 ) ( in 0.001 ) Rapid Traverse Rate X-axis m/min ( ipm ) 24 ( 944.9 ) Z-axis m/min ( ipm ) 30 ( 1181.1 ) C-axis r/min - 200 ( 7874.0 ) Max. Spindle speed r/min 4500 3500 4500 3500 Spindle nose ASA A2-6 A2-8 A2-6 A2-8 Spindle bearing diameter ( Front ) mm ( inch ) 110 ( 4.3 ) 140 ( 5.5 ) 110 ( 4.3 ) 140 ( 5.5 ) Spindle through hole mm ( inch ) 76 ( 3.0 ) 91 ( 3.6 ) 76 ( 3.0 ) 91 ( 3.6 ) Min. spindle Indexing angle ( C-axis ) deg - 0.001 No. of tool stations ea 12 10 { 12 } 12 OD tool size mm ( inch ) 25x25 ( 1.0x1.0 ) Max. boring bar size mm ( inch ) 40 ( 1.6 ) Turret Indexing time ( 1 station swivel ) s 0.15 Max. Rotary tool speed r/min - 5000 Quill diameter mm ( inch ) 80 ( 3.1 ) Quill bore taper MT #4 Quill travel mm ( inch ) 80 ( 3.1 ) Main spindle motor power ( 15min./ cont. ) kw ( Hp ) 18.5 / 15 ( 24.8 / 20.1 ) Rotary tool motor power kw ( Hp ) - 5.5 ( 7.4 ) Coolant pump motor power kw ( Hp ) 0.4 ( 0.5 ) Power source Electric power supply ( rated capacity ) kva 29.04 29.04 30.43 30.43 Height mm ( inch ) 1700 ( 66.9 ) Machine Length mm ( inch ) 2940 ( 115.7 ) Dimensions Width mm ( inch ) 1628 ( 64.1 ) Weight kg ( lb ) 3500 ( 7716.1 ) 3600 ( 7936.5 ) 3600 ( 7936.5 ) 3700 ( 8157.0 ) { } : option Standard Features Automatic Door Lock Coolant Supply System Foot Switch Hydraulic Chuck & Cylinder Live Center Lubricant Supply System Parts for installation Soft Jaw Standard Work Tools ( including holders ) Work Light Optional Features Additional tool holder and sleeves Air blast for chuck jaw cleaning Air gun Bar feeder interface Built-in dead center Chip conveyor & chip bucket Chuck pressure check switch Coolant Chiller Front automatic door Hard jaw High pressure coolant system Signal tower ( yellow, red, green ) Mist collector Oil skimmer Parts catcher Parts conveyor Pressure chucking selection function Programmable tail stock Tool setter ( Manual / Hyd. ) The specifications and information above-mentioned may be changed without prior notice. For more details, please contact Doosan 22

NC Unit Specifications DOOSAN-FANUC i series Axes Control - Controlled axes X, Z ( PUMA GT2100 ) X, Z, C ( PUMA GT2100M ) - Simultaneous controlled axes 2 axis ( GT2100 ) 3 axes ( PUMA GT2100M ) - Axis control by PMC - Backlash compensation 0 ~ ±9999 pulse - Backlash compensation for each rapid traverse and cutting feed - Chamfering on / off - Emergency stop - Follow-up - HRV2 control - Inch / Metric conversion - Increment system 1 / 10 0.0001 / 0.00001 mm/inch - Interlock All axes / each axis - Least input command 0.001 / 0.0001 mm / inch - Machine lock All axes / each axis - Mirror image - Overtravel - Position switch - Servo off - Stroke limit check before move - Stored stroke check 1 - Stored stroke check 2, 3 - Torque control - Unexpected disturbance torque detection function Operation - Automatic operation ( memory ) - Buffer register - DNC operation ( Reader / puncher interface is required ) - Dry run - Handle incremental feed X1, X10, X100 - Jog feed - Manual Handle interruption - Manual handle feed 1 unit - Manual intervention and return - Manual pulse generator 1 ea - Manual reference position return - MDI operation - Program number search - Program restart - Reference position shift - Refernce position setting without dog - Sequence number search - Single block - Wrong operation prevention Interpolation Functions - Nano interpolation - 1 st. reference position return Manual, G28-2 nd. reference position return G30-3 rd /4 th. reference position return G30 - Circular interpolation G02 - Continuous threading - Dwell ( per sec ) G04 - High speed skip - Linear interpolation G01 - Multiple threading - Positioning G00 - Reference position return check G27 - Thread cutting / Synchronous cutting - Thread cutting retract - Torque limit skip - Variable lead threading Feed Function - Automatic acceleration / deceleration - Cutting feedrate clamp - Feed per minute - Feed per revolution - Feedrate override ( 10% unit ) 0-200 % - Jog feed override ( 10% unit ) 0-2000 mm/min - Manual per revolution feed - Override cancel - Rapid traverse override F0, 25, 100 % - Rapid traverse rate - Tangential speed constant control Auxiliary / Spindle Speed Function - Spindle orientation - Actual spindle speed output - Auxiliary function lock - Constant surface speed control - High speed M / S / T interface - M - code function M3 digits - Rigid tapping - S - code function S4 / S5 digits - Spindle serial output S4 / S5 digits - Spindle speed override 0-150 % - Spindle Output switching Program Input - Absolute / incremental programming - Addition of custom macro common variables - Automatic coordinate system setting - Canned cycle for drilling / Turning - Canned cycle - Circular interpolation by R programming - Control in / out - Coordinate system setting G50 - Coordinate system shift - Custom macro - Decimal point programming - Pocket calculator type decimal point programming - Diameter / radius programming ( X axis ) - Direct drawing dimension programming - Direct of coordinate system shift - G code system A / B / C - Input unit 10 time multiply - Interruption type custom macro - Label skip - Manual absolute on and off - Maximum program dimension ± 9 digit - Multiple repetitive canned cycle G70 - G76 - Multiple repetitive canned cycle II - Optional block skip 1 piece - Parity check - Pattern data input - Plane selection G17, G18, G19 - Program number O4 digit - Program stop / end ( M00, M01 / M02, M30 ) - Programmable data input G10 - Sequence number N5 digit - SUB program call 10 folds nested - Tape code : ISO / EIA auto recognition EIA RS422 / ISO840 - Tape format for FANUC Series10/11 - Work coordinate system G52 - G59 - Work coordinate system preset Tool Function / Tool Compensation - Automatic tool offset - Direct input of offset value measured - Direct input of offset value measured B - Extended tool life management - T - code function T2 + 2 digits - Tool geometry / wear compensation - Tool life management - Tool nose radius compensation - Tool offset G43, G44, G49 - Tool offset 7 digits - Tool offset pairs 64 pairs - Tool offset value counter input Editing Operation - Back ground editing - Extended part program editing - Number of registered programs 400 ea - Part program editing - Part program storage length 1280 m ( 512kB ) - Play back - Program protect Setting and Display - Actual cutting feedrate display - Alarm display - Alarm history display - Current position display - Directory display and punch for each group - Directory display of floppy cassette - Display of spindle speed and T code at all screens - External message display - Help function - Multi - language display - Operation history display - Parameter setting and display - Program name display 31 characters - Run hours / parts count display - Self-diagnosis function - Servo setting screen - Spindle setting screen - Status display - Operating monitor screen - Soft operator's panel - Tool path graphic display Data Input / Output - External data input - External key input - External program input - External program number search - External work number search - Memory card input / output - Reader / puncher interface CH1.interface - RS232C interface Others - Cycle start and lamp - Display unit 10.4" Color LCD - Feed hold and lamp - NC and servo ready - PCMCIA port in the front of LCD display unit - PMC system0id - Reset / rewind - USB port in the front of LCD display unit Operation Guidance Function - ez Guide i Interface Function - Ethernet function Embedded ethernet Auxiliary / Spindle Speed Function Axis Control - Controlled axes expansion ( total ) Max.4 axes - Simultaneous controlled axes expansion ( total ) Max.4 axes Feed Function - Advanced preview control - Helical interpolation Interface Function - Fast ethernet / Data server Operation - Manual handle feed 2 units Robot Interface - Robot interface with PMC I/O module ( Hardware between PMC I/O modules ) - Robot interface with PROFIBUS-DP 23

http://www.doosaninfracore.com/machinetools/ Head Office Doosan Tower 20th FL., 275, Jangchungdan-Ro(St), Jung-Gu, Seoul Tel : +82-2-3398-8693 / 8671 / 8680 Fax : +82-2-3398-8699 Doosan Infracore America Corp. 19A Chapin Rd., Pine Brook, NJ 07058, U.S.A. Tel : +1-973-618-2500 Fax : +1-973-618-2501 Doosan Infracore Germany GmbH Emdener Strasse 24, D-41540 Dormagen, Germany Tel : +49-2133-5067-100 Fax : +49-2133-5067-001 Doosan Infracore Yantai Co., LTD 13 Building, 140 Tianlin Road, Xuhui District, Shanghai, China (200233) Tel : +86-21-6440-3384 (808, 805) Fax : +86-21-6440-3389 Doosan Infracore India Pvt., Ltd. Technical Center 106 / 10-11-12, Amruthalli, Bellary road, Byatarayanapura, Bagalore 560092, India Tel : +91-80-4266-0100 / 0122 / 0101 Doosan International South East Asia Pte Ltd. 42 Benoi Road, Jurong 629903, Singapore Tel : +65-6499-0200 Fax : +65-6861-3459 EN 141105SU - The specifications and information above-mentioned may be changed without prior notice. - For more details, please contact Doosan.