The Star SR-20J Type C is a Swiss automatic sliding-head (“guide bush”) lathe designed for high-precision machining of small-diameter components. Ideal for industries such as watchmaking, medical, electronics, and automotive, this machine combines high spindle speeds, multiple live tooling options, and the ability to complete milling/drilling in a single setup.
Advantages for your production:
Reduced non-cutting time thanks to the sliding headstock, automatic bar feeder, and fast tool changes.
Excellent surface finish and repeatability, enabled by rigid construction, 7-axis control, and a main spindle speed up to 10,000 rpm.
Operational flexibility: front and rear live tooling, backworking tools, milling and tapping capabilities.
Support for auxiliary systems: bar feeder, high-pressure coolant, chip conveyor, reliable CNC control.
Technical configuration & specifications:
Maximum machining diameter: 32 mm
Headstock stroke: 310 mm
Spindle speed: up to 7,000 rpm
High-pressure coolant system: Hydrajet BF20-2000
Oil-mist extraction unit: Absolent A.Mist 10S
Number of spindles: 2
Spindle motor power: 7.5 kW / 3.7 kW
Number of axes: 7
Fire suppression: STAT-X
Signal tower: WERNA
Machine dimensions (L × W × H): 1,200 × 2,250 × 1,700 mm
Machine weight: 2,200 kg
Bar feeder: FMB MINIMAG 3200/A
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