CNC automatic lathes



The new SV-20R CNC automatic lathe updates the proven SV series. The machine combines the machining possibilities of sliding and fixed headstock lathes in a unique way and continues the impressive success of the SV-20 series from the star* company. Every second turret station has been equipped with a flexible B axis and the backworking offers versatile, time-overlapped possibilities with 8 tool stations.

  • FANUC 31i-B5 control system
  • Movable control panel
  • C axis control as standard on main and sub spindle
  • Convertible from sliding headstock to fixed headstock lathe
  • Tool post and turret for simultaneous machining on the front side
  • Three fully independent tool systems
  • Additional longitudinal axis on the turret
  • Fully independent backworking
  • Turret drive power 4 kW


  • 7 turning tools
  • 5 power-driven tools for cross machining
  • 8 + α tools for turning, drilling, cross machining and backworking with drive on the turret
  • 4 of these tools with B axis drive
  • 8 tools for power-driven backworking
  • 12 axes
Diameter Durchmesser 20 mm / 23 mm (option)
Length Länge 205 mm / 50 mm (fixed headstock)
Machining options Geometrie
C axis C-Achse Main spindle
C axis C-Achse Sub spindle


Number of axes 8
Main spindle (headstock) Z1 / C1 axis
Tool post X1 / Y1 axis
Turret B3 / X3 / Y3 / Z3 axis
B axis on the turret freely programmable
Max. machining diameter 20 mm / 23 mm (option)
Max. headstock stroke (sliding/fixed headstock) 205 mm / 50 mm
Max. main spindle drive power 5.5 kW
Max. main spindle speed 10,000 rpm
Tools on the tool post
Turning tools

7 tools (□ 12 mm)

Cross machining tools 5 tools ER 16
Max. cross machining drive power 2.2 kW
Max. cross machining speed 8,000 rpm
Turret tools
Number of tool stations

8 tools (all power-driven)

B axis 4 stations
Max. cross machining drive power 4.0 kW
Max. cross machining speed 5,750 rpm
Number of axes 4
Sub spindle X2 / Z2 / C2 axis
vertical axis Y2
Max. gripping diameter 20 mm / 23 mm (option)
Max. sub spindle drive power 3.7 kW
Max. sub spindle speed 10,000 rpm
Backworking tools
Tool stations 8 tools (all power-driven)
Max. backworking speed 8,000 rpm
Total number of axes 12
Max. rapid traverse speed 30 m/min
Coolant tank capacity 220 litres
Dimensions (L x W x H) Approx. 2730 x 1350 x 1865 mm
Weight 4,150 kg