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SB-20RII CNC Swiss-type Automatic Lathe

The SB-20RII delivers enhanced performance, versatility, and ergonomics with added tool stations, higher spindle speeds, advanced controls, and improved accuracy. With 7 axes, the main spindle supports 6 turning tools, 2 fixed spindles for cross-working, and 3 modular power-driven stations for various attachments. The sub spindle offers 4 standard stations, expanding to 6. The SB-20RII can operate in both guide bush and non-guide bush modes for greater flexibility.

Machine Specifications

Specifications

Maximun Capacity 20 mm 25.4 mm *Optional with Bar End Prep.
Number of Axis 7 X1, Y1, Z1, X2, Z2 (35 m/min) C1, C2 (198,000 deg/min)
Main spindle 10,000 RPM 3.7 kW / 2.2 kW (cont.)
Sub spindle 10,000 RPM 2.2 kW / 1.5 kW (cont.)

Control, capacity & movement MM/IN

Controller
Fanuc 0i-TF PLUS
Axes (Rapid Feed Rate)
X1, Y1, Z1, X2, Z2 (35 m/min)
C1, C2 (198,000 deg/min)
Maximum Capacity
20 mm (0.787")
25.4 mm (1.0") *Optional with Bar End Prep.
Stroke
GB: 205 mm (8.070")
NON-GB: 50 mm (1.970")
Dimensions
2070 x 1095 x 1775 mm
(approx. 82" x 44" x 70")
Center Height
1060 mm
(41.733")
Weight
2000 kg
(4410 lbs)
Coolant Tank Capacity
180 L
(48 gal)

Spindle & power-driven tooling RPM/KW

Main Spindle
10,000 RPM
3.7 kW / 2.2 kW (cont.)
Power Driven Tools for Main
8,000 RPM
1.2 kW (cont.)
Sub Spindle
10,000 RPM
2.2 kW / 1.5 kW (cont.)
Power Driven Tool for Sub
8,000 RPM
1.0 kW (cont.)

Tool Layout

Standard Tool Layout Included

Work Holding
R20 (TF25) | R20 (TD25S)
Tool Layout
6-Station Tool Holder 12mm (1/2")

5-Spindle Cross Drill Unit
• 2 x Built-in Milling Unit ER16
• 2 x Milling Unit ER16 (cart type) [33150]
• 1 x Cartridge position used for Sleeve Holder [14114]

5-Position Sleeve Holder (22mm*5, cart type) [14114]
• 5 x Drill Sleeve ER16 [30124]

4-Spindle Unit for Back Working w/ Drive Unit
• 4 x Drill Sleeve ER16 [10104]

Optional Tool Holders Options

Optional for Main Side
6-Station Tool Holder 12mm (1/2") - Coolant Through
Sleeve Holders
Deep Hole Sleeve Holder
Drill Sleeves and Boring Bar Sleeves
Drilling/Milling Units
3-Spindle Front Drilling Unit
3-Spindle Cross Drilling Unit
4x Speed Type Cross Drilling Unit
4x Speed Type Front Drilling Unit
Thread Whirling Unit
Polygon Unit
Slotting Unit
Options for Sub Side
Drill Sleeves and Boring Bar Sleeves
Drilling/Milling Units
4x Speed Type Drilling Unit
Cross Drilling Unit (max 1)
Height Adjustable Slotting Unit
Back 3-Spindle Drilling Unit
Triple Sleeve Holder

Accessories

Standard Accessories Included

  • Guide Bushing / Non-Guide Bushing Conversion
  • Automatic Centralized Lubrication Unit with level detector
  • Pneumatic Unit
  • Cooling Unit for Spindles and Drive Unit for Gang Tool Post
  • Stand Alone Type Coolant Tank with Coolant Level Detector
  • Coolant Flow Detector [2B457]
  • Door Interlock System [2E454]
  • 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 [2B478]
  • Parts Ejection Detector [1A409]
  • Parts Conveyor [2E412]
  • Electronic Handwheel
  • Beacon Interface [2B428]
  • LAN/RS232C Interface with Cover [72808]
  • Automatic Bar Feeder Interface [2A413]
  • Automatic Bar Feeder Interface 2 [2A419]
  • Chip Conveyor Interface 20 Contacts Version [2A442]
  • Coolant Unit Signal Cable 46 Contacts Version [2B439]

Optional Accessories Options

  • Beacon Light
  • Main/Sub/Guide Bush Expansion (1.0") and Reductions Systems
  • Stationary Guide Bushing Unit
  • Magic Guide Bushing Unit
  • JBS Flexible Guide Bushing Unit
  • Pneumatic Parts Ejector
  • Long Parts Ejector Guide Tube
  • Chiller Unit
  • High Pressure Pump
  • Mist Collector
  • Chip Conveyor
  • Fire Suppression System
  • Bar Feeders

Functions

Standard Functions Included

  • Control unit (FANUC Series 0i-TF Plus)
  • Operation panel (10.4" color LCD display)
  • Number of control axes : 7 total (4 on Path1, 3 on Path2)
  • Synchronized axis control (Z1/Z2, C1/C2)
  • Synchronous rotation/phase control of Main & Sub Spindles
  • Cs contour control (Main & Sub Spindle)
  • Program storage : 2MB in total
  • Number of registerable programs : 1000 in total
  • Tool wear offset : 64 on each Path
  • Guide Bush / Non Guide Bush change function
  • Spare M code (4 pairs)
  • Increment system 1/10
  • Tool life management function
  • Cylindrical interpolation (G107)
  • Polar coordinate interpolation (G112)
  • Polygon machining (G251)

Optional Functions Options

  • HFT Chip Control Technology
  • SCP Chip Control Technology
  • Circular Thread Cutting
  • Helical interpolation