YAMA SEIKI

SPINDLE GS-200/200L GS-260/260L GS-280/280L
Hole through draw tube Ø 52 mm ( 2.05" ) Ø 66 mm ( 2.59" ) Ø 75.5 mm ( 2.97" )
Hole through spindle Ø 66 mm ( 2.59" ) Ø 76 mm ( 2.99" ) Ø 90 mm ( 3.54" )
Spindle bearing diameter Ø 100 mm ( 3.93" ) Ø 120 mm ( 4.72" ) Ø 130 mm ( 5.11" )
Hydraulic cylinder 8" 10" 10"*4
Spindle nose A2-6 A2-8 A2-8
Spindle motor type FANUC β22 / 6,000 i ( AC / Wide-Range / Const. Ouptut )
Motor output ( Cont. ) 11 kW ( 15 HP )
Motor output ( 30min. / Peak ) 15 kW / 18.5 kW ( 20 HP / 25HP )
Motor full output speed 750 RPM
Spindle drive system Direct Belt Drive
Spindle drive ratio 4 : 5 2 : 3 7 : 12
Spindle speed range 48 ~ 4,800 RPM 40 ~ 4,000 RPM 35 ~ 3,500 RPM
Spindle full output speed 600 RPM 500 RPM 440 RPM
Spindle torque (30min.) 239 N-M ( 176 ft-lbs ) 287 N-M ( 212 ft-lbs ) 327 N-M ( 242 ft-lbs )
Spindle torque (Peak) 291 N-M ( 215 ft-lbs ) 350 N-M ( 258 ft-lbs ) 399 N-M ( 295 ft-lbs )
2-SPEED SPINDLE (OPTIONAL)
Spindle speed ranges L 20 ~1,200 RPM 20 ~1,000 RPM 20 ~ 875 RPM
H 1,201 ~ 4,800 RPM 1,001 ~ 4,000 RPM 876 ~ 3,500 RPM
Spindle full output speed L 400 RPM 335 RPM 295 RPM
H 600 RPM 500 RPM 440 RPM
Spindle torque (15 min.) L 358 N-M ( 264 ft-lbs ) 429 N-M ( 317 ft-lbs ) 490 N-M ( 362 ft-lbs )
Spindle torque (30 min.) H 239 N-M ( 176 ft-lbs ) 287 N-M ( 212 ft-lbs ) 327 N-M ( 242 ft-lbs )
Cf-AXIS SPINDLE (OPTIONAL)
Cf-axis drive motor AC 0.75 kW ( 1HP FANUC α2 / 5,000i , Absolute encoder, 1,000,000/rev. )
Cf-axis drive ratio 1 : 120
Cf-axis rapid 33 RPM
Cf-axis torque output ( Const. ) Direct Belt Drive
Min. spindle indexing angle +/- 0.001˚
Dynamic accuracy +/- 0.002˚


Specifications are subject to change without notice.
*1 Individual models may vary, please see interference drawings.
*2 Work piece supported by chuck & tailstock.
*3 Chucks optional.
*4 Optional 10" Big-bore hydraulic cylinder & chuck provide Ø 78 mm ( 3.07" ) bar capacity.