Star SP-20 Blends Compact Footprint with 1-Inch Capacity
Star CNC's SP-20 Swiss-type lathe offers small-scale, high-mix job shops an affordable entry point into high-capacity precision turning without devouring valuable floor space. Capable of handling up to 1-inch (25.4 mm) diameter material, this machine is specifically engineered for shops that need to pivot rapidly between completely different part geometries throughout the work week.
At the core of the SP-20's versatile layout is a rigid, gate-shaped tool post that surrounds the guide bush, accommodating up to eight turning tools and a five-position sleeve holder. What truly makes this a workhorse is its seven-spindle power tool unit featuring five modular cartridge positions. Operators can quickly swap out attachments for highly specialized operations like cross drilling, slotting, thread whirling, and polygon machining, completely eliminating the need for secondary setups on separate machines.
To protect your margins, the SP-20 features a flexible switching function between guide-bush and non-guide-bush modes, allowing you to run short parts with minimal bar remnants and drastically reduce material waste.
Precision is maintained during long production runs through integrated thermal sensors that automatically correct for temperature displacement, while an innovative oil mist cooling system keeps the power-driven tool gearbox from overheating.
With the optional Step Cycle Pro software for hassle-free chip breaking, the SP-20 transforms a modest footprint into a highly adaptable, reliable machining cell that helps small shops confidently bid on complex, tight-tolerance aerospace, medical, and commercial contracts.
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