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SP-20 Swiss-type Automatic Lathe

Star’s newest model, the SP-20, offers substantial versatility in a small-scale footprint and modest price, with the capability of machining 1-inch diameter material.  This machine utilizes a gate-shaped tool post designed to encircle the guide bush for front side machining equipped with 8 turning tools, 5-position sleeve holder and 7-spindle power-driven tool unit with 5 cartridge positions for modular units. A wide array of these modular units such as Cross Drilling, Front Drilling, Slotting, Thread Whirling and Polygon Machining enhances the range of machining options.

Machine Specifications

Specifications

Maximum capacity 23 mm 25.4 mm
Number of Axis 7 X1, Y1, Z1, X2, Z2, C1, C2
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
23 mm (0.905")
25.4 mm (1.0") *with Bar End Prep.
Stroke
GB: 205 mm (8.070")
NON-GB: 50 mm (1.970")
Dimensions
2100 x 1200 x 1785 mm
(approx. 83" x 48" x 71" )
Center Height
1060 mm
(41.733")
Weight
2250 kg
(4961 lbs)
Coolant Tank Capacity
190 L
(51 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
1.4 kW (cont.)
Sub Spindle
10,000 RPM
2.2 kW / 1.5 kW (cont.)
Power Driven Tool for Sub
8,000 RPM
0.75 kW (cont.)

Tool Layout

Standard Tool Layout Included

Work Holding
MR25 (TF30) | MR25 (CD25)
Tool Layout
8-Station Tool Holder 12mm (1/2")
7-Spindle Cross Drill Unit
• 2 x Built-in Milling Unit ER16
• 5 x Cartridge positions available
5-Position Sleeve Holder (22mm*5) [10146]
• 5 x Drill Sleeve ER16 [30124]
4-Spindle Unit for Back Working with Drive Unit
• 4 x Drill Sleeve ER16 [10104]

Optional Tool Holders Options

Options for Main Side
7-Station Tool Holder 12mm/16mm
Sleeve Holders
Deep Hole Sleeve Holder
Sleeve Holder for Electric Spindles
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
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
  • Stand Alone Type Coolant Tank with Coolant Level Detector
  • Coolant Flow Detector [2B457]
  • Door Interlock System [2B456]
  • 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 [2B412]
  • 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]
  • Coolant Piping for Tool Holder [2B463]
  • Coolant Piping for Sleeve Holder [2B464]
  • Coolant Piping for Power-Driven Tool [2B465]
  • Coolant Piping for Guide Bush [2B466]
  • Coolant Piping for Back 4-Spindle Unit [2B467]
  • Coolant Piping for Tool Holder 2nd Line [2B484]

Optional Accessories Options

  • Beacon Light
  • Main/Sub/Guide Bush Reductions Systems
  • Main and Sub Spindle Torque Up
  • 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

  • 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