Five-Axis Vertical Machining Center GT Series - Megatel

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Main structure GT-800E GT-500 GT-800E Table Rotary axis, tilting axis DD motor driving Features of high speed and high accuracy A/C axis : Direct-direct motor type Direct-drive type tilting/rotating table Direct-drive motor is used as the driver of A/C-axis tilting and rotating. It’s one of the best solutions for high speed machining. The advantages of DD motor are space saving, less error, higher resolution, higher torque, and higher speed. Z axis Y axis X axis 5ʺ A/C axis positioning accuracy 2.0ʺ A/C axis repeatability accuracy Stroke A axis torque 2,500/4,850 Nm X/Y/Z axis 800/820/560 mm C axis torque 980/2,310 Nm A/C axis 150( 30 -120 )/360 mm Rapid traverse X/Y/Z axis 48/48/48 m/min A/C axis 50/100 rpm A axis motor T f(n) C axis 6000 Tp Tc 5000 A axis T [Nm] 4000 3000 2000 Max. workpiece size Table size Ø800 mm Table rotary speed Ø900 A axis 50 rpm C axis 100 rpm 0 0 20 40 60 80 100 120 n [rpm] Ø600 T f(n) C axis motor 2500 Tp Tc 2000 T [Nm] 1,000 kg 500 Max. table load 1000 400 09 1500 1000 500 0 0 Unit : mm 50 100 150 n [rpm] 200 250 300 10

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Main structure GT-800E GT-500 GT-800E Table Rotary axis, tilting axis DD motor driving Features of high speed and high accuracy A/C axis : Direct-direct motor type Direct-drive type tilting/rotating table Direct-drive motor is used as the driver of A/C-axis tilting and rotating. It’s one of the best solutions for high speed machining. The advantages of DD motor are space saving, less error, higher resolution, higher torque, and higher speed. Z axis Y axis X axis 5ʺ A/C axis positioning accuracy 2.0ʺ A/C axis repeatability accuracy Stroke A axis torque 2,500/4,850 Nm X/Y/Z axis 800/820/560 mm C axis torque 980/2,310 Nm A/C axis 150( 30 -120 )/360 mm Rapid traverse X/Y/Z axis 48/48/48 m/min A/C axis 50/100 rpm A axis motor T f(n) C axis 6000 Tp Tc 5000 A axis T [Nm] 4000 3000 2000 Max. workpiece size Table size Ø800 mm Table rotary speed Ø900 A axis 50 rpm C axis 100 rpm 0 0 20 40 60 80 100 120 n [rpm] Ø600 T f(n) C axis motor 2500 Tp Tc 2000 T [Nm] 1,000 kg 500 Max. table load 1000 400 09 1500 1000 500 0 0 Unit : mm 50 100 150 n [rpm] 200 250 300 10

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Main structure GT-800 Table GT-800 Rotary axis, tilting axis Roller cam driving High dynamic rigidity ( DD motor is available in the rotary axis) A/C axis : Roller gear cam type The positioning accuracy, repeatablility accuracy, backlash and durability performances of roller gear cam mechanism are superior to worm-gear mechanism. Well contact between roller and gear drives A/C rotary table with lowest torque. Backlash adjustment is not required after long time continuously heavy cutting. Z axis Y axis X axis Preload configuration Output Rollers Input Stroke X/Y/Z axis 850/1,020/610 mm A/C axis 150( 30 -120 )/360 mm A/C axis positioning accuracy 5.6ʺ A/C axis repeatability accuracy 3.0ʺ A axis torque 4,536 2/13,770 2 Nm C axis torque 3,024/9,180 Nm Preload force is applied to all force direction to eliminate backlashes. Zero backlash High positioning Low abrasion Higher durability accuracy Rapid traverse X/Y/Z axis 48/48/48 m/min A/C axis 16/30(Opt. DD50) rpm World No.1 C axis GT-800 roller gear cam type A axis is designed to be embedded in U-shape machine bed for enhancing table rigidity. A axis Max. workpiece size Ø1,000 Max. table load 1,000 kg Table size Ø800 mm A axis 16 rpm Table rotary speed C axis 30 rpm Ø600 C axis : Direct-drive type (Opt.) 50 rpm(Opt. DD) Direct-drive motor is used as the driver of C-axis rotating. It’s one of the best solutions for high speed machining. The advantages of DD motor are less volume, less error, higher resolution, higher torque, and higher speed. With 50 rpm rotating speed, high torque output can be upto 1,800/3,320 Nm. 600 400 11 C axis A axis Unit : mm 12

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Main structure GT-800 Table GT-800 Rotary axis, tilting axis Roller cam driving High dynamic rigidity ( DD motor is available in the rotary axis) A/C axis : Roller gear cam type The positioning accuracy, repeatablility accuracy, backlash and durability performances of roller gear cam mechanism are superior to worm-gear mechanism. Well contact between roller and gear drives A/C rotary table with lowest torque. Backlash adjustment is not required after long time continuously heavy cutting. Z axis Y axis X axis Preload configuration Output Rollers Input Stroke X/Y/Z axis 850/1,020/610 mm A/C axis 150( 30 -120 )/360 mm A/C axis positioning accuracy 5.6ʺ A/C axis repeatability accuracy 3.0ʺ A axis torque 4,536 2/13,770 2 Nm C axis torque 3,024/9,180 Nm Preload force is applied to all force direction to eliminate backlashes. Zero backlash High positioning Low abrasion Higher durability accuracy Rapid traverse X/Y/Z axis 48/48/48 m/min A/C axis 16/30(Opt. DD50) rpm World No.1 C axis GT-800 roller gear cam type A axis is designed to be embedded in U-shape machine bed for enhancing table rigidity. A axis Max. workpiece size Ø1,000 Max. table load 1,000 kg Table size Ø800 mm A axis 16 rpm Table rotary speed C axis 30 rpm Ø600 C axis : Direct-drive type (Opt.) 50 rpm(Opt. DD) Direct-drive motor is used as the driver of C-axis rotating. It’s one of the best solutions for high speed machining. The advantages of DD motor are less volume, less error, higher resolution, higher torque, and higher speed. With 50 rpm rotating speed, high torque output can be upto 1,800/3,320 Nm. 600 400 11 C axis A axis Unit : mm 12

GT Series Five-Axis Vertical Machining Center GT系列 立式五軸加工中心 GT Series Five-Axis Vertical Machining Center Main structure Main structure / Operation Rotating center is higher than table surface ATC (Automatic Tool Changer) Rotating center of A axis is 100 mm higher than table surface, that reduces the distance while tool moving and table rotation simultaneously to save cycle time and gives perfect surface finishing in profle maching. GT-500 GT-630 GT-800E GT-800 Lo Sho d ng rt θ d 80 d 90 d 90 d 100 θ Rotating center Tools Specification GT-500 GT-630 Standard GT-800E Unit : mm GT-800 32T Fixed type table design 40 T Optional 64 T 40T Max. tool weight 7 kg Ø80 Max. tool diameter 300 80 T 300 X/Y/Z axis moving and table rotation are working individually to make sure machining is free from 3 axis inertia influences. Prefect servo driven design gives excellent machining stability. Comparing with table moving type, A/C axis are equiped in fixed position, A axis positioning accuracy can be free form vibration by feeding axis. Ø80 Max. tool length 300 mm With adjacent tool C axis A axis Operation / Accessibility L Movable type stable Fixed type table GT-630 GT-800E GT-800 550 650 650 700 Unit : mm 1002 GT-500 83 A axis Y axis Easily reachable distance to working table and widely door open space is converient for loading/unloading. 183 C axis Ø125 Ø125(w/o adjacent tool) 283 13 L Without adjacent tool 14

GT Series Five-Axis Vertical Machining Center GT系列 立式五軸加工中心 GT Series Five-Axis Vertical Machining Center Main structure Main structure / Operation Rotating center is higher than table surface ATC (Automatic Tool Changer) Rotating center of A axis is 100 mm higher than table surface, that reduces the distance while tool moving and table rotation simultaneously to save cycle time and gives perfect surface finishing in profle maching. GT-500 GT-630 GT-800E GT-800 Lo Sho d ng rt θ d 80 d 90 d 90 d 100 θ Rotating center Tools Specification GT-500 GT-630 Standard GT-800E Unit : mm GT-800 32T Fixed type table design 40 T Optional 64 T 40T Max. tool weight 7 kg Ø80 Max. tool diameter 300 80 T 300 X/Y/Z axis moving and table rotation are working individually to make sure machining is free from 3 axis inertia influences. Prefect servo driven design gives excellent machining stability. Comparing with table moving type, A/C axis are equiped in fixed position, A axis positioning accuracy can be free form vibration by feeding axis. Ø80 Max. tool length 300 mm With adjacent tool C axis A axis Operation / Accessibility L Movable type stable Fixed type table GT-630 GT-800E GT-800 550 650 650 700 Unit : mm 1002 GT-500 83 A axis Y axis Easily reachable distance to working table and widely door open space is converient for loading/unloading. 183 C axis Ø125 Ø125(w/o adjacent tool) 283 13 L Without adjacent tool 14

15 GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Operation Accessory specifications Door opening width Open top telescopic cover Wide door opening facilitates the operation and maintenance. Linear scale (Std.) With linear scales in X/Y/Z axis, that is able to compensate positioning errors, repeataility errors, and ballscrew pitch errors caused by temperature. Positioning accureicy cmn be martained in 5 µm. Further option for 3 µm liner scale id also availabile. 2 µm and 5 µm rotary scales is standard equiped in A and C axis to garantee rotary positioning accuracy. Chip disposal (Std.) The automatic open top telescopic cover of Y axis is convenient for lifting works. Swivel-type operation panel Distance of tool changing Easy daily maintenance The swivel panel enables operator to operate and inspect easily during operation. The excellent access for tool changing and checking. Through centralized mangment of air FIRL unit and lubricant pump, daily maintenance is made easily. Comprehensive bed flush make sure all chips flow out. Various type chip conreyors are available for different materials disposal. Chip conveyor (Opt.) 90 Well chip flow Central chip flow design, chips can be carried out immeditely while machining. It prevents casting struccture from being affected by hot chips and maintains machining accureacy. According to different materials and chip size, Tongtai provides various chip conveyors for the best chip disposal. Specification Steel Cast iron Aluminum/non-ferrous metal Long/ Curl chips Short chips Powder chips Short chips Long/ Curl chip Short chips Powder chips Chain type Scraper type Magnetic scraper type Drun type Integrated type ：Suitable ：Non-suitable Short chips : The chip length is smaller than 60 mm or Ø40 mm (ball shape cutting). Long/Curl chips : Chip is longer than short chips mentioned above. 16

15 GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Operation Accessory specifications Door opening width Open top telescopic cover Wide door opening facilitates the operation and maintenance. Linear scale (Std.) With linear scales in X/Y/Z axis, that is able to compensate positioning errors, repeataility errors, and ballscrew pitch errors caused by temperature. Positioning accureicy cmn be martained in 5 µm. Further option for 3 µm liner scale id also availabile. 2 µm and 5 µm rotary scales is standard equiped in A and C axis to garantee rotary positioning accuracy. Chip disposal (Std.) The automatic open top telescopic cover of Y axis is convenient for lifting works. Swivel-type operation panel Distance of tool changing Easy daily maintenance The swivel panel enables operator to operate and inspect easily during operation. The excellent access for tool changing and checking. Through centralized mangment of air FIRL unit and lubricant pump, daily maintenance is made easily. Comprehensive bed flush make sure all chips flow out. Various type chip conreyors are available for different materials disposal. Chip conveyor (Opt.) 90 Well chip flow Central chip flow design, chips can be carried out immeditely while machining. It prevents casting struccture from being affected by hot chips and maintains machining accureacy. According to different materials and chip size, Tongtai provides various chip conveyors for the best chip disposal. Specification Steel Cast iron Aluminum/non-ferrous metal Long/ Curl chips Short chips Powder chips Short chips Long/ Curl chip Short chips Powder chips Chain type Scraper type Magnetic scraper type Drun type Integrated type ：Suitable ：Non-suitable Short chips : The chip length is smaller than 60 mm or Ø40 mm (ball shape cutting). Long/Curl chips : Chip is longer than short chips mentioned above. 16

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Table size Spindle thermal deformation compensation (opt.) GT-500 Table size Built-in type temperature sensor detects the temperature of spindle bearing for protecting the bearing from overheating. By measuring temperature of the nearest point to bearings, compensation can be adjusted accordingly. Through thermal compensation, precision of each axis can be maintained below 20 µm. 14 H7 75 T-slot detail 75 Ø5 00 Optional accessories a.b.c.d Hydraulic / oil pressure holes 25 75 Befor compensation After compensation Spindle speed 75 10 a PCD50 20 10 b e 0 -10 -20 -30 -40 -50 20,000 -60 65 Spindle speed (rpm) Displacement (µm) 65 PT1/8'' d c 10,000 0 100 200 300 400 500 600 700 800 0 Time (min) 3D Interference Protection Y:610st 310 300 X:610st 305 40(Tool change travel) 305 120 30 Z:510st Ø600 400 Rotating center detection for five-axis machining center (opt.) GT-500 Working area Tab l e Ø900 50 Diagram of thermal displacement on Z-axis 80 17 18

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Table size Spindle thermal deformation compensation (opt.) GT-500 Table size Built-in type temperature sensor detects the temperature of spindle bearing for protecting the bearing from overheating. By measuring temperature of the nearest point to bearings, compensation can be adjusted accordingly. Through thermal compensation, precision of each axis can be maintained below 20 µm. 14 H7 75 T-slot detail 75 Ø5 00 Optional accessories a.b.c.d Hydraulic / oil pressure holes 25 75 Befor compensation After compensation Spindle speed 75 10 a PCD50 20 10 b e 0 -10 -20 -30 -40 -50 20,000 -60 65 Spindle speed (rpm) Displacement (µm) 65 PT1/8'' d c 10,000 0 100 200 300 400 500 600 700 800 0 Time (min) 3D Interference Protection Y:610st 310 300 X:610st 305 40(Tool change travel) 305 120 30 Z:510st Ø600 400 Rotating center detection for five-axis machining center (opt.) GT-500 Working area Tab l e Ø900 50 Diagram of thermal displacement on Z-axis 80 17 18

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Table size GT-800E GT-630 Unit : mm 18 H7 a.b.c.d Hydraulic / oil pressure holes 14 33 Ø a PCD45 T-slot detail 14 H7 a.b.c.d Hydraulic / oil pressure holes 24 T-slot detail 0 63 a 10 100 100 100 100 100 100 246.4 Unit : mm PCD50 b e 80 80 b c Y:820ST Y:820ST X:800ST 420 400 30 400 300 Ø900 500 400 Z:560ST 12 0 0 400 150 Z:560ST Ø800 400 120 420 380 200 X:760ST 400 d c GT-800E Working area GT-630 Working area 380 PT1/8'' d PT1/8'' 500 19 Ø1080 Ø1,080 Unit : mm Unit : mm 20

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Table size GT-800E GT-630 Unit : mm 18 H7 a.b.c.d Hydraulic / oil pressure holes 14 33 Ø a PCD45 T-slot detail 14 H7 a.b.c.d Hydraulic / oil pressure holes 24 T-slot detail 0 63 a 10 100 100 100 100 100 100 246.4 Unit : mm PCD50 b e 80 80 b c Y:820ST Y:820ST X:800ST 420 400 30 400 300 Ø900 500 400 Z:560ST 12 0 0 400 150 Z:560ST Ø800 400 120 420 380 200 X:760ST 400 d c GT-800E Working area GT-630 Working area 380 PT1/8'' d PT1/8'' 500 19 Ø1080 Ø1,080 Unit : mm Unit : mm 20

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Table size Spindle output / Machining precision GT-800 15,000 rpm Built-in type spindle (Std.) Unit : mm Output [kW] Torque [Nm] 45 45 18 a.b.c.d Hydraulic / oil pressure holes C1 12 80 153 Nm S1 Cont. 30 139 Nm 127 Nm S6 60% S6 40% 25 100 Nm S6 25% 160 70 55.7 Nm 60 60 50 42 kW 120 40 40 35 kW 80 30 15 a 30 Torque [Nm] 80 67.2 Nm 20 33 C1 Output [kW] 40 kW 35 T-slot detail 20,000 rpm Built-in type spindle (Opt.) 200 40 Ø8 00 356 45 10 PCD50 e b 5 10 25 Nm 1500 2500 3800 0 20 20 40 0 0 3000 6000 9000 12000 6000 0 15000 0 5000 12780 10000 Spindle speed (rpm) 18000 15000 0 25000 20000 Spindle speed (rpm) PT1/8'' d c Machining precision 90 Test Standard : ISO-10791-7 GT-800 Working area Y:1020ST 520 X:850ST 425 425 500 Circularity 10.13 µm Material A6061 Tool Super hard Ø20 mm end milling tool Spindle speed 3,183 rpm Cutting feedrate 4,755 mm/min Workpiece shape Ø80 Ø35 H15 mm 180 0 270 5 µm / div 30 Assembling accuracy 12 0 Y 150 600 Ø600 Z 610 ST Ø1,000 400 21 X Ø1,200 Unit : mm 10.0μm/div Circle for roundness : within 8µm 22

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Table size Spindle output / Machining precision GT-800 15,000 rpm Built-in type spindle (Std.) Unit : mm Output [kW] Torque [Nm] 45 45 18 a.b.c.d Hydraulic / oil pressure holes C1 12 80 153 Nm S1 Cont. 30 139 Nm 127 Nm S6 60% S6 40% 25 100 Nm S6 25% 160 70 55.7 Nm 60 60 50 42 kW 120 40 40 35 kW 80 30 15 a 30 Torque [Nm] 80 67.2 Nm 20 33 C1 Output [kW] 40 kW 35 T-slot detail 20,000 rpm Built-in type spindle (Opt.) 200 40 Ø8 00 356 45 10 PCD50 e b 5 10 25 Nm 1500 2500 3800 0 20 20 40 0 0 3000 6000 9000 12000 6000 0 15000 0 5000 12780 10000 Spindle speed (rpm) 18000 15000 0 25000 20000 Spindle speed (rpm) PT1/8'' d c Machining precision 90 Test Standard : ISO-10791-7 GT-800 Working area Y:1020ST 520 X:850ST 425 425 500 Circularity 10.13 µm Material A6061 Tool Super hard Ø20 mm end milling tool Spindle speed 3,183 rpm Cutting feedrate 4,755 mm/min Workpiece shape Ø80 Ø35 H15 mm 180 0 270 5 µm / div 30 Assembling accuracy 12 0 Y 150 600 Ø600 Z 610 ST Ø1,000 400 21 X Ø1,200 Unit : mm 10.0μm/div Circle for roundness : within 8µm 22

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Machine dimension Machine size Machine size GT-500 GT-800E 3310 Unit : mm 5,400 2200 Unit : mm 4,100 3490 MAX:3225 2,100 MIN:2970 GT-630 GT-800 Unit : mm Unit : mm 3,825 5,660 3,250 3,310 5,400 2,617.5 3,390 3,855 2,200 2,149 23 24

GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center Machine dimension Machine size Machine size GT-500 GT-800E 3310 Unit : mm 5,400 2200 Unit : mm 4,100 3490 MAX:3225 2,100 MIN:29

X/Y/Z axis Ø50 mm high precision ballscrew A axis : Roller gear cam type C axis : Roller gear cam type (Opt. DD motor type) Ø800 mm Ø1,000 H600 mm Spindle X/Y/Z axis A/C axis rotary table Table size Max. workpiece dimension 01 GT Series Five-Axis Vertical Machining Center GT Series Five-Axis Vertical Machining Center 02 GT Series