SR-20R IV Type A & B 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
  205mm (8in)
  
  WITH R.M.G.B. UNIT
  160mm (6-19/64in)
  
  NON-GUIDE BUSH TYPE
  Bar diameter x 2.5 (max. 50mm) (max. 1-31/32in)

• Tool

  5 tools on the front + 2 tools on the rear (12mm)

• 4-Spindle Sleeve Holder

  NUMBER OF TOOLS
  Front 4 tools / Rear 4 tools
  
  MAX. DRILLING CAPABILITY
  ø12mm (1/2in)
  
  MAX. TAPPING CAPABILITY
  M10 x P1.5

• 2-Spindle Front Sleeve Holder

  NUMBER OF TOOLS (SLEEVE)
  2 tools
  
  MAX. DRILLING CAPABILITY
  ø10mm (25/64in)
  
  MAX. DEPTH OF HOLE
  100mm (3-15/16 in)

• Power Driven Attachment

  NUMBER OF TOOLS
  Cross Milling: 3 tools
  Cartridge Type: At 2 position
  
  NUMBER OF TOOLS (TYPE A)
  Angle adjustable power-driven tool: At 1 position (front 3 tools + rear 3 tools)
  
  NUMBER OF TOOLS (TYPE B)
  B-axis controlled power-driven tool unit: At 1 position (front 3 tools + rear 3 tools)
  
  MAX. DRILLING CAPABILITY
  ø10mm (25/64in)
  
  MAX. TAPPING CAPABILITY
  M8 x P1.25
  
  SPINDLE SPEED
  Max. 8,000min-1
  
  DRIVE MOTOR
  2.2kw

• Rapid Feed Rate

  35m/min-1 (X1, X2, Y1, Z1, Z2), 15m/min-1 (Y2)

• Main Spindle Indexing Angle

  C-axis control

• Main Spindle Speed

  Max. 10,000min-1

• Main Spindle Motor

  2.2kw (continuous) / 3.7kw (10 min/25% ED)

• Coolant Tank Capability

  170ℓ

• Dimensions (W x D x H)

  2,334 x 1,200 x 1,700mm

• Weight

  2,600kg

• Power Consumption

  4.7KVA

• Max. Chucking Diameter

  ø20mm (25/32in)

• Max. Length for Front Ejection

  80mm (3-5/32in)

• Max. Parts Projection Length

  30mm (1-3/16in)

• Back 8-Spindle Unit

  NUMBER OF TOOLS
  Stationary Tool: 8 tools
  Power Driven Tool: 8 tools
  
  MAX. DRILLING CAPABILITY
  Stationary Tool
  ø12mm (1/2in)
  
  Power-Driven Tool
  ø6mm (15/64in)
  
  MAX. TAPPING CAPABILITY
  Stationary Tool
  M10 x P1.5
  
  Power Driven Tool
  M5 x P0.8

• Power Driven Attachment Spindle Speed

  Max. 8,000min-1

• Power Driven Attachment Drive Motor

  1.0kw (continuous)/1.2kw (5min./30%ED)

• Sub Spindle Indexing Angle

  C-axis control

• Sub Spindle Speed

  Max. 10,000min-1

• Sub Spindle Motor

  Built-in motor drive 2.2kw (continuous) / 3.7kw (10min/25% ED)

1. CNC unit Fanuc 31i-B (Type A)
2. CNC unit Fanuc 31i-B5 (Type B)
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
10. Revolving guide bush unit
11. Main/Sub collet
12. C-axis control (main/sub)
13. Spindle clamp unit (main/sub)
14. 5-station tool holder (12mm)
15. 2-station tool holder (12mm)
16. Main tool post tool rotation drive unit
17. Cross milling tool unit (3-tool type)
18. Angle adjustable power-driven tool unit (Type A)
19. B-axis controlled power-driven tool unit (Type B)
20. 4-spindle sleeve holder
21. Back 8-spindle unit
22. Drive unit for power-driven attachment B
23. Y-axis control for back-working tool post
24. Parts ejector (Spring type)
25. Parts conveyor
26. Air purge for revolving guide bush
27. Sub spindle air purge unit
28. Sub spindle air blow unit
29. Work light
30. Leakage breaker

1. Coolant flow detector
2. Water removal unit
3. Beacon
4. Parts receptacle in the machine
5. Parts separator unit A
6. Main spindle inner tube
7. Parts ejector (air cylinder type)
8. Rotary magic guide bush unit
9. Parts ejector with guide tube
10. Parts stopper unit
11. Coolant unit 2.5MPa
12. Coolant unit 6.9MPa
13. Coolant pipings
14. Oil-hole drill type
15. Automatic bar feeder interface
16. Compliant with the RS-232C interface
17. Transformer
18. Safety relay module version
19. Transformer CE marking version
20. Transformer CE marking specifications