Machine Comparison
Star NEW SD-26 Type S vs Star SR-32J
Star Micronics vs Star Micronics · Swiss-Type Lathes
Summary
The Star NEW SD-26 Type S and the Star SR-32J are Swiss-type lathes from the same maker in neighboring bar sizes. The Star SR-32J takes the larger and longer part and has the stronger main spindle. The Star NEW SD-26 Type S turns faster and is the smaller machine.
The Star SR-32J takes Ø32 mm bar, or Ø34 mm as an option, against Ø26 mm, and turns 310mm in one chucking against 260mm. Its main spindle is rated 7.5 kW continuous against 5.5 kW. The Star NEW SD-26 Type S runs both the main and the sub spindle to 10,000 rpm against 8,000 rpm, and weighs 3,600 kg against 4,100 kg.
Specifications Comparison
| Specification | Star NEW SD-26 Type S | Star SR-32J |
|---|---|---|
| Max Turning Diameter | φ26mm (1-1/64 inch) | ø32mm (1-1/4in) ▲ |
| Max Turning Length | 260mm (10-15/64 inch) | 310mm (12-13/64in) ▲ |
| Bar Capacity | Ø26 mm (1-1/64 in) | Ø32 mm (1-1/4 in); optional: Ø34 mm (1-11/32 in) |
| Max Spindle Speed | 10,000 rpm ▲ | 8,000 rpm |
| Spindle Power | 5.5 kW (Continuous) / 7.5 kW (10min./25%ED) | 7.5 kW (continuous) / 11.0 kW (10min./25%ED) ▲ |
| Sub-Spindle Speed | 10,000 rpm ▲ | 8,000 rpm |
| Tool Capacity | 5 tools on the front + 2 tools on the rear | 6 tools |
| Rapid Traverse | 36 m/min (X1,Y1,Z1,X2,Z2) ▲ | 35 m/min (X1, X2, Y1, Z1, Z2) |
| Axes | Up to 8 (including Y-axis, C1, C2) | 8 |
| Machine Weight | 3,600 kg | 4,100 kg |
| Floor Space | 2,550 × 1,300 × 1,995 mm | 2,690 × 1,345 × 1,780 mm |
Advantages
Star NEW SD-26 Type S
- 10,000 rpm main and sub spindles against 8,000 rpm
- Lighter machine: 3,600 kg against 4,100 kg
- Smaller footprint: 2,550 × 1,300 mm against 2,690 × 1,345 mm
Star SR-32J
- Ø32 mm bar capacity against Ø26 mm, with Ø34 mm as an option
- 310mm turning length against 260mm
- Main spindle rated 7.5 kW continuous against 5.5 kW
Verdict
Bar diameter decides this one. Work above Ø26 mm, or shafts longer than 260mm, needs the Star SR-32J, and its 7.5 kW continuous main spindle suits the heavier cuts that larger bar brings. For parts that fit inside Ø26 mm, the Star NEW SD-26 Type S is the better match: 10,000 rpm at both spindles keeps surface speed up on small diameters, and the machine takes less floor and weighs 3,600 kg.