Star SR 20 J 11 Type A - 7 Axis
Cnc Sliding Head Machine
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Equipment and Features
Machine Specification
SR-20J II Type A 7-axis CNC sliding head lathe designed for high-precision, small-part machining. Equipped with main and sub spindles, live tooling, and multi-axis capability, this machine is ideal for complex components requiring simultaneous front and back working in a single setup.
General information SR-20J II type A
Number of axes 7
Max. rapid traverse speed 35 m/min
Weight approx. 2,750 kg
Coolant tank capacity 202 litres
Dimensions (L x W x H) approx. 2,250 × 1,200 × 1,700 mm
Main spindle side
Main spindle side SR-20J II type A
Number of axes 4
Axes ain spindle (headstock) Z1 / C1 Z1 / C1
Axes tool post X1 / Y1 X1 / Y1
Max. machining diameter 20 mm / 23 mm (option) 20 mm
Max. headstock stroke (sliding/fixed headstock) 205 mm / 50 mm 205 mm / 50 mm
Max. main spindle drive power 3.7 kW
Max. main spindle speed 10,000 1/min
Tools on the tool post
Turning tools 6 tools (□ 12 mm)
Drilling tools (5-spindle drilling unit) 5 tools (ER16)
Cross machining tools 1 tool (ER20) / 4 tools (ER16)
Max. cross machining drive power 3.0 kW
Max. cross machining speed 8,000 rpm
Front drilling unit tools
Sleeve Ø 22 mm
Max. drilling depth 115 mm
Sub spindle side
Sub spindle side SR-20J II type A
Number of axes 3 4
Axes sub spindle X2 / Z2 / C2
Vertical axis for backworking Y2
Max. chucking diameter 20 mm
Max. sub spindle drive power 3.7 kW
Max. sub spindle speed 10,000 rpm
Backworking tools
Tool stations 4 tools (4 power-driven)
Max. backworking speed 8,000 rpm
POA