
Index Mill-Turn Centers
INDEX & TRAUB turn-mill centers set the standard for economic, high-precision solutions tailored to the customer’s needs. Standards ranging from the classic production turning machine to tailor-made machining cells equipped with handling units. For the machining of simple to highly complex parts, in small to large lot sizes, INDEX consistently offers economically and technologically superior solutions.
Mill-Turn

Index G200
Specifications
Bar Capacity: 2.5”
Chuck Diameter: 6.5”
Max Turn Length: 26”
Spindle Speed: 6,000 RPM
Milling Spindle: 7,200 RPM / HSK-A40 / 29.5 HP
Dual Lower Turret: 7,200 RPM / 12 HP
Features
• Up to three tool carriers with Y-axis usable on main and counter spindles
• Simultaneous machining with up to 4 tools possible
• Powerful and dynamic milling spindle (360° B-axis, max. 7,200 rpm, 22 kW and 52 Nm, HSK-A40)
• Economic complete machining of parts as well as of bar stock and as of chuck parts
• Incomparably large degrees of freedom in the large work area for turning-milling operations with up to 660 mm turning length
• Excellent ergonomics for quick setup
• Compact foot print an enormous power density for economic manufacturing

Index G220
Specifications
Bar Capacity: 2.5” (3.5” Option)
Chuck Diameter: 8” (10” Option)
Main / Sub-Spindle Speed: 5,000 RPM / 5,000 RPM
Milling Spindle: 18,000 RPM / 23 HP / HSK-T40
Tool Magazine for Milling Spindle:70 Tools (140 Option)
Dual Lower Turret: 7,200 RPM / 8 HP / VDI
Features
• Generous work area designed for turning/milling or milling/turning
• 2 powerful, identical motorized spindles (up to 40 kW and 310 Nm)
• Lower tool turret with Y-axis (100 mm) and 18 or 12 stations
• Fast tool change
• Simultaneous machining with two tool carriers possible
• High dynamics (up to 55 m/min rapid traverse speed)
• Already included: the operating system iXpanel i4.0 ready with 18.5” touch screen – based on Siemens S840D sl

Index G300. / G320
Specifications
Bar Capacity: 4” Bar
Chuck Diameter: 10” Chuck (12” Option)
Main / Sub-Spindle Speed: 4,000 RPM / 4,000 RPM
Milling Spindle: 18,000 RPM / 21 HP / HSK-T63
Tool Magazine for Milling Spindle: 52 Tools (111 Option)
Dual Lower Turret: 7,200 / VDI
Features
• Identical main and counter spindles with spindle clearance Ø 102 mm
• Chuck up to Ø 250 mm (Ø 315 mm)
• 3 tool carriers for up to 141 tools
• Powerful motor milling spindle with proven Y/B quill kinematics for complex 5-axis milling operations (G320)
• Sophisticated work area concept for turning lengths up to 1,400 mm and variable machining options
• High thermal and mechanical stability
• High acceleration and fast rapid traverse rates up to 50 m/mm

Index G400. / G420
Specifications
Bar Capacity: 4.7” Bar
Chuck Diameter: 15” Chuck
Main / Sub-Spindle Speed: 3,000 RPM / 3,000 RPM
Milling Spindle: 12,000 RPM / 34 HP / HSK-T63
Dual Lower Turret: 5,400 / VDI
Features
• Identical main and counter spindles with spindle clearance 120 mm
• Chuck D 400 mm
• Tool stock for up to 139 tools (INDEX G420)
• Sophisticated working area concept for turning lengths up to 1,600 mm / 2,300 mm and variable machining options
• High thermal and mechanical stability
• High dynamic response (rapid traverse rate up to 50 m/min)
• Chip conveyor can be used on the left and right

Index G500. / G520
Specifications
Bar Capacity: 4.7” Bar
Chuck Diameter: 20” Chuck
Main / Sub-Spindle Speed: 2,500 RPM / 2,500 RPM
Milling Spindle: 12,000 RPM / 34 HP / HSK-T63
Dual Lower Turret: 5,400 / VDI
Features
• Identical main and counter spindles with spindle clearance D 120 mm
• Chuck D 500 mm
• Tool stock for up to 139 tools (INDEX G520)
• Sophisticated working area concept for turning lengths up to 1,600 mm / 2,300 mm and variable machining options
• High thermal and mechanical stability
• High dynamic response (rapid traverse rate up to 50 m/min)

Index R200
Specifications
Bar Capacity: 2.5” Bar
Chuck Diameter: 6.8” Chuck
Main / Sub-Spindle Speed: 5,000 RPM / 5,000 RPM
Milling Spindles: 18,000 RPM / 15 HP / HSK-T40
Features
• 5-axis machining on workpiece front and rear allows an extremely large variety of parts
• A total of 12 stationary turning tools for particularly high rigidity and cutting performance
• High cutting volume by powerful motorized milling spindles at 18,000 rpm
• Best damping and guiding properties of the milling spindles result in better workpiece quality and extended tool lives
• Outstanding dynamics due to high rapid traverse speeds and accelerations
• Already included: the operating system iXpanel iX4.0 with 18.5” touch screen based on Siemens S840D sl

Index R300
Specifications
Bar Capacity: 4.0” Bar
Chuck Diameter: 12.5” Chuck
Main / Sub-Spindle Speed: 3,500 RPM / 3,500 RPM
Milling Spindles: 9,000 RPM / 33 HP / HSK-T63
Number of Tools for Milling Spindles: 70 Tools (160 Option)
Features
• Change up to 140 tools (HSK-T63) in 6 seconds chip-to-chip time – thereby shortening secondary processing times at both spindles
• Two full 5-axis systems in a turn-mill center
• Extensive automation options – tailored to the individual customer needs
• X travel ranges of up to 780 mm