Gantry Type G Series

Gantry Type G Series

    Starvision G Series Gantry type machining center features large capacity including X travel from 6 to 36 meters and is possible to enlarge to 60 meters, Y travel from 2 to 5 meters and Z travel selection is 1, 1.2 and 1.5 meters. Large workpiece machining used to take a lot of time and Starvision is determined to improve the efficiency. For the transmission system, we use German gear reducer and rack and pinion linear motions which deliver 30m/min in rapid feed rate. With twin servo motors operate synchronously, we are able to eliminate the backlash and achieve an optimal precision. G series perfectly combines speed and precision to achieve the ideal efficiency and is well regarded for large workpiece machining, shipbuilding industry, vacuum equipment machining and railway industry.

Model Unit G-XX20 G-XX25 G-XX30 G-XX35 G-XX40 G-XX45 G-XX50
Travel    
X axis mm 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000
Y axis mm 2,000 2,500 3,000 3,500 4,000 4,500 5,000
Z axis mm 1,000 (1,200/1,500 - opt.) 1,000 (1,200/1,500 - opt.) 1,000 (1,200/1,500 - opt.) 1,000 (1,200/1,500 - opt.) 1,000 (1,200/1,500 - opt.) 1,000 (1,200/1,500 - opt.) 1,000 (1,200/1,500 - opt.)
Spindle nose to table distance mm 200-1,200 (200-1,400/200-1,700 - opt.) 200-1,200 (200-1,400/200-1,700 - opt.) 200-1,200 (200-1,400/200-1,700 - opt.) 200-1,200 (200-1,400/200-1,700 - opt.) 200-1,200 (200-1,400/200-1,700 - opt.) 200-1,200 (200-1,400/200-1,700 - opt.) 200-1,200 (200-1,400/200-1,700 - opt.)
Distance between column mm 2,300 2,600 3,000 3,500 4,000 5,300 5,800
Table    
Table dimension (L) mm 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000 6,000 - 36,000
Table dimension (W) mm 1,500 2,000 2,500 3,000 3,500 4,000 4,500
T-slot (width x number x pitch) - 28x9x200 28x9x200 28x9x200 28x9x200 28x9x200 28x9x200 28x9x200
Max. table load kg 5000 (1) 5000 (1) 5000 (1) 5000 (1) 5000 (1) 5000 (1) 5000 (1)
Spindle    
Spindle motor kW 22/26 22/26 22/26 22/26 22/26 22/26 22/26
Spindle speed (gear type) rpm 4,200 (5,500 - opt.) 4,200 (5,500 - opt.) 4,200 (5,500 - opt.) 4,200 (5,500 - opt.) 4,200 (5,500 - opt.) 4,200 (5,500 - opt.) 4,200 (5,500 - opt.)
Spindle taper - BT 50 / ISO-50 / CAT-50 BT 50 / ISO-50 / CAT-50 BT 50 / ISO-50 / CAT-50 BT 50 / ISO-50 / CAT-50 BT 50 / ISO-50 / CAT-50 BT 50 / ISO-50 / CAT-50 BT 50 / ISO-50 / CAT-50
Feed    
Rapid traverse (X/Y/Z) m/min 24/12/12 24/12/12 24/12/12 24/12/12 (24/24/12 - opt.) 24/24/12 24/24/12 24/24/12
Cutting feed-rate mm/min 7,000 7,000 7,000 7,000 7,000 7,000 7,000
Accuracy    
Position accuracy mm P0.02/2,000 P0.02/2,000 P0.02/2,000 P0.02/2,000 P0.02/2,000 P0.02/2,000 P0.02/2,000
Repeatability mm Ps0.015/2,000 Ps0.015/2,000 Ps0.015/2,000 Ps0.015/2,000 Ps0.015/2,000 Ps0.015/2,000 Ps0.015/2,000
ATC      
Tool storage capacity pcs 32T (40/60/90/120 - opt.) 32T (40/60/90/120 - opt.) 32T (40/60/90/120 - opt.) 32T (40/60/90/120 - opt.) 32T (40/60/90/120 - opt.) 32T (40/60/90/120 - opt.) 32T (40/60/90/120 - opt.)
Max. tool length mm 350 350 350 350 350 350 350
Max. tool weight kg 20 20 20 20 20 20 20
Max. tool size (full tools) mm Ø125 Ø125 Ø125 Ø125 Ø125 Ø125 Ø125
Max. tool size (next pocket empty) mm Ø200 Ø200 Ø200 Ø200 Ø200 Ø200 Ø200
Other    
Compressed air kg/cm2 6.5 6.5 6.5 6.5 6.5 6.5 6.5
floor space (L) (approx.) mm 12,000 - 42,000 (2) 12,000 - 42,000 (2) 12,000 - 42,000 (2) 12,000 - 42,000 (2) 12,000 - 42,000 (2) 12,000 - 42,000 (2) 12,000 - 42,000 (2)
floor space (W) (approx.) mm 7,000 7,500 8,000 8,500 9,000 9,500 10,000
floor space (H) (approx.) mm 6,000 6,000 6,000 6,000 6,000 6,000 6,000
Machine weight (approx.) kg 70,000 (3) 75,000 (3) 80,000 (3) 85,000 (3) 90,000 (3) 95,000 (3) 100,000 (3)

※All specification are subjected to change without prior notice.
(1) Floor type table can be tailor-made according to customer's foundation for extra large or heavy workpiece machining demand.
(2) Machine floor space (L) varies with different X axis travel of the machine.
(3) Machine weight varies with different X axis travel of the machine. The weight listed is based on 6 meter models, and it increases by approximately 10 tons with every 2 meters lengthened in X axis.

Category Description G Series
Controller FANUC 0i-MF controller
FANUC 31i-MB controller
SIEMENS 828D controller
SIEMENS 840D controller
HEIDENHAIN TNC640 controller
Spindle 22/26 kW spindle motor
30/37 kW spindle motor
4,200rpm 2-step gear drive spindle
5,500rpm 2-step gear drive spindle
8,000/10,000rpm direct drive spindle
Z travel extension / higher column Z travel 1000mm 
Z travel 1200/1500mm
Heightened column
ATC Floor type automatic tool changer 32 tools
Floor type automatic tool changer 40/60/90/120 tools
Splash guard Fully enclosed splash guard
(roof excluded)
Fully enclosed splash guard
(roof included)
Mechanical Y/Z axes absolute pulse coder 
Rigid tapping
Twin hydraulic cylinders
Nitrogen balancing system
Automatic lubrication system
Spindle oil cooler
Air blast through spindle
Manual Pulse Generator
Working lamp
3-color alarm lamp
RS-232 interface 
Heat exchanger for electrical cabinet
Water gun and air gun interface
Cutting coolant system
Twin auger chip removal system
Belt type chip conveyor with cart
Sub-table
3 axes manual pulse generator for mold processing
Coolant through spindle at 20/40/70 bar
Coolant through tool holder interface
Air conditioner for electrical cabinet
Transformer
Oil skimmer 
Oil mist collector
Others Leveling bolts & blocks
Tool box
CE norm
Measurement X axis Heidenhain Linear Scale
Y axis Heidenhain Linear Scale
z axis Heidenhain Linear Scale
Automatic tool measuring system
Automatic work piece measuring system
Milling head Manual: 90° angular milling head/ high speed 2-axis milling head/ 2-axis head/ extension head/ boring head
Semi-automatic: 90° angular milling head/ 2-axis head/ extension head/ boring head
-V/H ATC and AHS inapplicable
Automatic: 90° angular milling head/ 2-axis head/ extension head/ boring head
Vertical/Horizontal Automatic Tool Changer (40/60/90 tools)
Automatic Head Station

-Standard /  -Optional / -Depending on the model