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ST-20 CNC Swiss-type Automatic Lathe

Machining with the highest specifications and functions that deliver high productivity and profitability

  • Simultaneous machining capability such as turning and milling by opposing twin turret tool posts drastically reduces machining time
  • Main and sub spindles are both capable of the same level of machining which enables complex parts to be machined with incredibly short cycle times and to a high standard of quality
  • Equipped with 3 turrets for ultra-high speed flexible machining
  • Elaborate array of turret posts allow for a wide range of tooling configurations for seamless multi-processing

Machine Specifications

Specifications

Maximum capacity 20 mm
Number of Axis 12 X1, X2, X3, Z1, Z2, Z3, Y1, Y2, Y3, YA2, C1, C2
Main spindle 10,000 RPM 5.5 kW / 3.7 kW (cont.)
Sub spindle 10,000 RPM 5.5 kW / 3.7 kW (cont.)

Control, capacity & movement MM/IN

Controller
Fanuc 31i-B5
Axes (Rapid Feed Rate)
X1, X2, X3, Z1, Z2, Z3 (30 m/min)
Y1, Y2, Y3 (15 min/min)
YA2 (4 m/min)
C1, C2 (198,000 deg/min)
Maximum Capacity
20 mm (0.787")
Stroke
GB: 350 mm (13.780")
NON-GB: n/a
Dimensions
2988 x 1720 x 1845 mm
(approx. 118" x 68" x 73")
Center Height
1083 mm
(42.638")
Weight
4850 kg
(10693 lbs)
Coolant Tank Capacity
220 L
(59 gal)

Spindle & power-driven tooling RPM/KW

Main Spindle
10,000 RPM
5.5 kW / 3.7 kW (cont.)
Power Driven Tools for Main
5,750 RPM
2.5 kW (cont.)
Sub Spindle
10,000 RPM
5.5 kW / 3.7 kW (cont.)
Power Driven Tool for Sub
5,750 RPM
2.5 kW (cont.)

Tool Layout

Standard Tool Layout Included

Work Holding
R20 (TF25) | R20 (TD25S)
Tool Layout
8-Station Turret x 3

Optional Tool Holders Options

Options for Main Side
3-Station Tool Holder
Triple Sleeve Holders
Deep Hole Sleeve Holders
Drill Sleeves and Boring Bar Sleeves
Drilling/Milling Units
2-Spindle Front Drilling Unit
2-Spindle Skewed Hole Drilling Unit
High Speed 2-Spindle Cross Drilling Unit ER11
Thread Whirling Unit
Polygon Unit
Slotting Unit
Hobbing Unit

Accessories

Standard Accessories Included

  • Automatic Centralized Lubrication Unit with level detector
  • Pneumatic Unit
  • Hydraulic Unit
  • Spindle Cooling Unit
  • Coolant Chiller Unit
  • Stand Alone Type Coolant Tank with Coolant Level Detector
  • Coolant Flow Detector [1M459]
  • Door Interlock System
  • Broken Cut-Off Tool Detector
  • C-axis Contour Control (for the main/sub spindles)
  • Spindle Clamp Unit (for the main/sub spindles)
  • Parts Ejector with Spring
  • Parts Ejection Detector
  • Parts Conveyor
  • Electronic Handwheel
  • Beacon Interface [1M428]
  • RS232C Interface
  • Automatic Bar Feeder Interface
  • Automatic Bar Feeder Interface 2 [1M419]
  • Chip Conveyor Interface 20 Contacts Version [1M436]
  • Coolant Unit Signal Cable 46 Contacts Version [1M434]
  • Coolant Unit 0.7MPa (through Sub Spindle) [1M455]
  • Coolant Piping for Guide Bush [1M468]
  • Coolant Discharge for Back Attachment [1M469]
  • Coolant Piping for Turret [59466]
  • Coolant Piping for Turret [59466]

Optional Accessories Options

  • Beacon Light
  • Main/Sub/Guide Bush Expansion Systems
  • Magic Guide Bushing Unit
  • JBS Flexible Guide Bushing Unit
  • Pneumatic Parts Ejector
  • Long Parts Ejector Guide Tube
  • Tool Presetter
  • High Pressure Pump
  • Mist Collector
  • Chip Conveyor
  • Fire Suppression System
  • Bar Feeders

Functions

Standard Functions Included

  • Control unit (FANUC Series 31i-B5)
  • Operation panel (10.4" color LCD display)
  • Number of control axes : 12 total (4 on Path1, 5 on Path2, 3 on Path3)
  • Synchronized axis control (X1/X3, Y1/Y3, Z1/Z3, Z1/Z2, C1/C2)
  • Synchronous rotation/phase control of Main & Sub Spindles
  • Cs contour control (Main & Sub Spindle)
  • Program storage : 8MB in total
  • Number of registerable programs : 1000 in total
  • Tool wear offset : 66 on each Path
  • Automatic collet adjustment function
  • Spare M code (4 pairs)
  • Increment system 1/10
  • Tool life management function
  • Cylindrical interpolation (G107)
  • Polar coordinate interpolation (G112)
  • Polygon machining (G251)
  • Helical interpolation
  • 3D coordinate conversion
  • Motion Control - Optimization

Optional Functions Options

  • HFT Chip Control Technology
  • Circular Thread Cutting
  • Flexible Synchronization Control