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SR-20JII Type A/B CNC Swiss-type Automatic Lathe

The new upgrade to the SR-20JII model provides increased flexibility, more tooling configurations, and high rigidity with high accuracy.

  • Large tooling capacity for main operations
  • 8-Station back-working unit with Y-axis and increased power.
  • Slanted dovetail construction on tool post provides high rigidity
  • Switchable G.B. and N.G.B. change-over

Machine Specifications

Specifications

Maximum capacity 20 mm
Number of Axis 8 X1, Y1, Z1, X2, Z2, C1, C2, Y2*type B only
Main spindle 10,000 RPM 3.7 kW / 2.2 kW (cont.)
Sub spindle 10,000 RPM 3.7 kW / 2.2 kW (cont.)

Control, capacity & movement MM/IN

Controller
Fanuc 32i-B
Axes (Rapid Feed Rate)
X1, Y1, Z1, X2, Z2 (35 m/min)
Y2 (24 m/min) *type B only
C1, C2 (198,000 deg/min)
Maximum Capacity
20 mm (0.787")
Stroke
GB: 205 mm (8.070")
NON-GB: 50 mm (1.970")
Dimensions
2250 x 1200 x 1700 mm
(approx. 89" x 48" x 67")
Center Height
1060 mm
(41.733")
Weight
2750 kg
(6063 lbs)
Coolant Tank Capacity
200 L
(53 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
3.0 kW / 2.2 kW (cont.)
Sub Spindle
10,000 RPM
3.7 kW / 2.2 kW (cont.)
Power Driven Tool for Sub
8,000 RPM
1.2 kW / 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
• 1 x Built-in Milling Unit ER20
• 2 x Built-in Milling Unit ER16
• 2 x Milling Unit ER16 (cartridge type) [33150]
5-Position Sleeve Holder (22mm*5)
• 4 x Drill Sleeve ER16 [30125]
8-Spindle Unit for Back Working with Drive Unit (4-Spindle Unit for type A)
• 4 x Drill Sleeve ER16 [10104]
• 4 x Cartridge positions available (type B only)
2-Position Deep Hole Drilling Station

Optional Tool Holders Options

Options for Main Side
Drill Sleeves and Boring Bar Sleeves
Drilling/Milling Units
3-Spindle Front Drilling Unit
4x Speed Type Cross Drilling Unit
4x Speed Type Front Drilling Unit
Thread Whirling Unit
Polygon Unit
Slotting Unit
Hobbing Unit
Options for Sub Side
Drill Sleeves and Boring Bar Sleeves
Drill Sleeves with Internal Coolant
Drilling/Milling Units
4x Speed Type Drilling Unit
Cross Drilling Unit (max 4, type B only)
Slotting Unit (Height Adjustable version for type A)

Accessories

Standard Accessories Included

  • Guide Bushing / Non-Guide Bushing Conversion
  • Automatic Centralized Lubrication Unit with level detector
  • Pneumatic Unit
  • Stand Alone Type Coolant Tank with Coolant Level Detector
  • Coolant Flow Detector [1R459]
  • Door Interlock System [1R456]
  • 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 [1R484]
  • Parts Ejection Detector [1A409]
  • Parts Conveyor [1R412]
  • Beacon Interface [1N428]
  • LAN/RS232C Interface with Cover [72808]
  • Automatic Bar Feeder Interface [1R413]
  • Automatic Bar Feeder Interface 2 [1C419]
  • Chip Conveyor Interface 20 Contacts Version [1R442]
  • Coolant Unit Signal Cable 46 Contacts Version [1N439]

Optional Accessories Options

  • Beacon Light
  • Main/Sub/Guide Bush Expansion 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 32i-B)
  • Operation panel (10.4" color LCD display)
  • Number of control axes : 8 total (4 on Path1, 4 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 : 1MB in total
  • Number of registerable programs : 1000 in total
  • Tool wear offset : 99 on each Path
  • Automatic collet adjustment function
  • 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)
  • Helical interpolation

Optional Functions Options

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