SR-20J Type C/N CNC Swiss-type Automatic Lathe

• Standard Machine Specifications
• Backworking Attachment Specifications
• Standard Accessories and Functions
• Optional Accessories and Functions

• Max. Machining Diameter

  ø20mm (25/32in)

• Max. Headstock Stroke

  STANDARD
  Type C
  205mm (8in)
  Type N
  Bar diameterx2.5
  
  WITH RMGB
  Type C
  172mm (6-25/32in)
  Type N
  (Max. 55mm) (Max.2-11/64in)

• Tool

  NUMBER OF TOOLS
  6 tools
  
  TOOL SHANK
  12mm

• 4-Spindle Sleeve Holder

  NUMBER OF TOOLS
  Front 4 tools
  Rear 4 tools
  Type N
  
  MAX. DRILLING CAPABILITY
  ø10mm (25/64in)
  
  MAX. TAPPING CAPABILITY
  M8 x P1.25

• 2-spindle front sleeve holder

  NUMBER OF TOOLS (sleeve)
  2 tools
  
  MAX. DRILLING CAPABILITY
  ø8mm (5/16in)
  
  MAX. DEPTH OF HOLE
  100mm (3-15/16in)

• Power-Driven Attachment

  NUMBER OF TOOLS
  Cross milling: 3 tools
  Cartridge type: at 2 position
  
  MAX. DRILLING CAPABILITY
  ø8mm (5/16in)
  
  MAX. TAPPING CAPABILITY
  M6 x P1.0
  
  SPINDLE SPEED
  Max. 8,000min-1
  
  DRIVE MOTOR
  1.2kw

• Rapid Feed Rate

  35m/min (X, Y, Z, XB, ZB)

• Main Spindle Indexing Angle

  C-axis control

• Main Spindle Speed

  Max. 10,000min-1

• Main Spindle Motor

  2.2kw (continuous) / 3.7kw (15min./60%ED)

• Coolant Tank Capacity

  170ℓ

• Dimensions (W x D x H)

  2,250 X 1,200 X 1,700mm

• Weight

  2,200kg

• Power Consumption

  5.2KVA

• Maximum Chucking Diameter

  ø20mm (25/32in)

• Max. Length for Front Ejection

  80mm (3-5/32in)

• Max. Part Projection Length

  30mm (1-3/16 in)

• 4-Spindle Unit for Backworking

  NUMBER OF TOOLS
  4 tools
  
  MAX. DRILLING CAPABILITY
  Stationary Tool
  ø8mm (5/16in)
  Power-Driven Tool
  ø5mm (3/16in)
  
  MAX. TAPPING CAPABILITY
  Stationary Tool
  M8 x P1.25
  Power-Driven Tool
  M4 x P0.7

• Power-driven attachment spindle speed

  Max. 8,000min-1

• Power-driven attachment drive motor

  0.5kw

• Sub-Spindle Indexing Angle

  C-axis control

• Sub-Spindle Speed

  Max. 8,000min-1

• Sub-Spindle Motor

  1.5kw (continuous) / 2.2kw (15min./50% ED)

1. CNC Unit (Fanuc 31i-B)
2. Operation panel 10.4 inch color LCD display
3. Pneumatic unit
4. Automatic centralized lubrication unit
5. Coolant level detector
6. Door interlock system
7. Broken cutoff tool detector
8. Parts ejection detector
9. Drive unit for revolving guide bush (Type C only)
10. Revolving guide bush unit (Type C only)
11. Main / Sub collet
12. Spindle clamp unit (Main/Sub)
13. Spindle clamp unit (Main/Sub)
14. 6-station tool holder (12mm)
15. Drive system for power-driven attachment (including 3 spindle cross milling unit)
16. 4-spindle sleeve holder
17. 2-spindle sleeve holder
18. Back 4-spindle unit
19. Drive unit for power-driven attachment B
20. Parts ejector (Spring type)
21. Parts conveyor
22. Air purge for revolving guide bush (Type C only)
23. Main spindle air purge unit (Type N only)
24. Sub spindle air purge unit
25. Sub spindle air blow unit
26. Work light
27. Leakage breaker

1. Coolant flow detector
2. Water removal unit
3. Beacon
4. Parts separator unit A
5. Main spindle inner tube (Type C & Type N differ)
6. Rotary magic guide bush (Type C only)
7. Parts ejector (Air cylinder type)
8. Parts ejector with guide tube (Type C only)
9. Parts stopper unit (Type C only)
10. Coolant unit 1.5MPa
11. Coolant unit 6.9MPa
12. Coolant pipings
13. Spindle 15 degree indexing unit
14. Stopper (Type N only)
15. Automatic bar feeder interface
16. Compliant with the RS-232Cf interface
17. Transformer
18. Safety relay module version