Star CNC ST-38
Category: Star CNC

INFORMATION

The ST-38 is the ideal sliding head solution for complex mill-turn parts within the 38mm diameter range. Star’s flagship model is packed with functionality that enables challenging parts to be processed in one set-up.

Three 10 station turrets allow up to 70 tools to be loaded, each tool can be easily removed with Star’s unique clamping mechanism permitting fast set-up changes. The main spindle’s lower turret includes an independent Z3 axis. This axis allows two different features to be machined simultaneously (Z1 + Z3) using Star’s “super-position” control mode.

An independent turret is utilized on the sub-spindle where components up to 150mm can be processed and front ejected. STAR MOTION CONTROL is also included to minimize idle time and thus further reduce cycle time.

BENEFITS

  • Standard machining diameter 38mm
  • Z1 Stroke of 350mm
  • Twin turrets on main spindle for balanced turn-mill operations
  • Powerful 11.0 Kw main spindle
  • Z3 axis enables SUPER-POSITION control for increased overlap
  • YA2 axis on sub-spindle enables off-center pick up
  • Tool pre-setter included for easy tool set-up
  • STAR MOTION CONTROL to minimize idle time
  • Independent turret for sub-spindle for maximum overlap

DEMO VIDEO

KINEMATIC DIAGRAM

SPECIFICATIONS

Standard Machine Specs

Max.machining diameter ø38mm(1-1/2in)
Max.headstock stroke Standard 350mm(13-25/32in)
R.M.G.B.unit 315mm(12-13/32in)
Front turret tool post Front 10 stations
Rear 10 stations
Turning tool 1 tool/station(□20mm) ,
max.2 tools/station(□16mm)
Sleeve holder Number of tools max.3 tools/station
Max.drilling capability ø23mm(29/32in)
Max.tapping capability M16×P2.0
Power-driven att. Number of tools max.2 tools/station
Max.drilling capability ø10mm(25/64in)
Max.tapping capability M8×P1.25
Spindle speed max.5,700min-1
Drive motor 2.7kw(Continuous) / 4.0kw(5min./30%ED)
Rapid feed rate 30m/min(X1,Z1,X2,Z2,X3,Z3)
15m/min(Y1,Y2,Y3) , 3.9m/min(YA2)
Main spindle indexing angle C-axis control
Main spindle speed max.7,000min-1
Main spindle motor 7.5kw(Continuous) / 11.0kw(10min./25%ED)
Dimensions (W×D×H) 3,477×1,859×1,865mm
Weight 6,250kg
Power consumption 10.5KVA

Backworking Attachment

Max.chucking diameter ø38mm(1-1/2in)
Max. length for front ejection 150mm(5-7/8in)
Max.work projection length 75mm(2-61/64in)
Back working turret tool post 10 stations
Turning tool 1 tool/station(□20mm) ,
max.2 tools/station(□16mm)
Sleeve holder Number of tools max.3 tools/station
Max.drilling capability ø23mm(29/32in)
Max.tapping capability M12×P1.75
Power-driven att. Number of tools max.2 tools/station
Max.drilling capability ø10mm(25/64in)
Max.tapping capability M8×P1.25
Sub spindle indexing angle C-axis control
Sub spindle speed max.7,000min-1
Sub spindle motor 5.5kw(Continuous) / 7.5kw(10min./40%ED)