Specifications

SWING DIAMETER S.A.E. Metric
Over Front Apron 31.75 ............... 806 mm
Over Cross Slide 20.75 ............... 527 mm
Over Tailstock 24.25 ............... 616 mm
CAPACITIES S.A.E. Metric
Chuck Size 8.3 ............... 210 mm
Max Cutting Diameter 15.0 ............... 381 mm
Max Cutting Length 20.5 ............... 521 mm
Bar Capacity 2.0 ............... 51 mm
TRAVELS & FEEDRATES S.A.E. Metric
X Axis 9.3 ............... 236 mm
Z Axis 21.0 ............... 533 mm
Rapids on X 945 in/min 24.0 m/min
Rapids on Z 945 in/min 24.0 m/min
Max Thrust X 4588 lb 20408 N
Max Thrust Z 5800 lb 25800 N
SPINDLE S.A.E. Metric
Spindle Nose A2-6
Max Rating 20 hp 14.9 kW
Max Speed 4000 rpm 4000 rpm
Max Torque 150 ft-lb @ 700 rpm 203 Nm @ 700 rpm
Spindle Bore o 3.50 ............... 88.9 mm
TURRET S.A.E. Metric
Number of Tools 12 12
GENERAL S.A.E. Metric
Air Required 4 scfm, 100 psi 113 L/min, 6.9 bar
Coolant Capacity 48 gal 182 L
Machine Weight 9000 lb 4082 kg
Standard equipment on the ST-20 includes rigid tapping,
a 15 color LCD monitor and a USB port.

Notes

Two excellent machines available.
Machine on hours are 553 and 493
We need two Mazak Quick Turn 20's as replacements.
Chip Conveyor
Automatic Tool Setter
Programmable Tailstock
Live tooling = No
Kitagawa 10 Chuck = Yes
The ST-20 is equipped with a 12-station BOT turret
that indexes tools in 0.5 second. The machine provides
a maximum cutting capacity of 15 x 20.5 , with maximum
swings of 31.75 over the front apron and 20.75 over
the cross slide. The ST-20’s A2-6 spindle nose has a
3.0 spindle bore and a bar capacity of 2.0 . It is equipped
with a 8.3 hydraulic 3-jaw chuck. The machine’s 20 hp
vector dual-drive spindle spins to 4000 rpm, and provides
150 ft-lb of torque at 700 rpm. On-the-fly wye-delta
switching yields a wide constant-horsepower band for
constant surface feed cuts, and rapids are 945 ipm.