INFORMATION
The SV-20R combines the fast processing ability of a traditional platen type sliding head lathe with the flexibility of a turret machine. The main spindle benefits from a gang type tool post and an 8 station turret to enable simultaneous machining operations. The 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.
Fanuc’s high specification 31i-B5 control delivers full five axis capability enabling highly complex components to be processed. The B-axis tool holders on the turret enable angular features to be machined on both the main and sub-spindle.
The powerful sub-spindle with independent 8 station platen increases overlapped machining possibilities. The Y2 axis on the sub-spindle platen allows both cross working and front facing power tools to be mounted in any station.
BENEFITS
- Standard machining diameter 20mm (22.2mm optional)
- Z1 Stroke of 205mm in Swiss mode (Guide Bush)
- Z3 axis enables SUPER-POSITION control for increased overlap
- Switchable between guide bush and non-guide bush modes
- Main spindle speed 10,000 rpm, sub-spindle speed 10,000 rpm
- Built-in type main and sub-spindle motors for improved indexing accuracy
- Programmable B axis for angular machining
- STAR MOTION CONTROL to minimize idle time
- 8 Station sub-spindle platen for maximum overlapping
DEMO VIDEO
KINEMATIC DIAGRAM
SPECIFICATIONS
Standard Machine Specs |
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Max. machining diameter | Ø 20 mm (25/32in) | |
Max. headstock stroke | Standard | 205 mm (8in) |
R.M.G.B. type | 160 mm (6-19/64in) : OP | |
N.G.B. type | Bar diameter x 2.5 (Max. 50mm) (Max. 1-31/32in) | |
Tool Post Configuration | Gang type | Turning tool + Power-driven tool |
Turret type | 8 stations | |
Tool-Number of tools | Gang type | 6 tools (16mm), 7 tools (12mm) |
Turret type | 1 tool/station (16 mm), Max. 3 tools/station (12 mm) | |
Sleeve | Number of tools | Max. 3 tools/ station |
Max. drilling capacity | Ø 14 mm (35/64in) | |
Max. tapping capacity | M10xP1.5 | |
Power driven att. | Number of tools gang type | 5 tools |
Number of tools turret type | Max. 2 tools/ station (mountable at each 8 positions) | |
Max. drilling capability | Ø10mm (25/64in) | |
Max. tapping capability | M8 x P1.25 | |
Spindle speed gang type | Max. 8,000min-1 | |
Spindle speed turret type | Max. 5,750min-1 | |
Drive motor gang type | 2.2kw | |
Drive motor turret type | 2.7kw (continuous)/ 4.0kw (5min./30%ED) | |
Rapid feed rate | 30mm/min (X1,X2,X3,Y1,Z1,Z2,Z3) | |
20mm/min (Y2), 15mm/min(Y3) | ||
Main spindle indexing angle | C-axis control | |
Main spindle speed | Max. 10,000min-1 | |
Main spindle motor | 3.7kw (continuous)/ 5.5kw (10min./60%ED) | |
Coolant tank capability | 220l | |
Dimension (W x D x H) | 2,730 x 1,350 x 1,865 mm | |
Center height | 1,125mm | |
Weight | 4,150kg | |
Power Consumption | 6.3KVA |
Backworking Attachment |
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Max. chucking diameter | Ø 20 mm (25/32in) | |
Max. length for front ejection | 105 mm (4-9/64in) | |
Max. parts projection length | 75 mm (2-61/64in) | |
Back 8-Spindle unit | Number of tools stationary | 8 tools |
Number of tools power driven | Max. 8 tools | |
Max. drilling capability stationary | Ø12mm (1/2in) | |
Max. drilling capability power driven | Ø6mm (15/64in) | |
Max. tapping capability power driven | M10 x P1.5 | |
Max. tapping capability power driven | M5 x P0.8 | |
Power-driven att. spindle speed | Max. 8,000min-1 | |
Power-driven att. 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 speed control | AC spindle drive | |
Sub spindle motor | 2.2kw (continuous) /3.7kw (10min/25%ED) |
LINKS

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