CNC lathe Roturn 402 M

horizontalslant bedA2-8

Overview
The Roturn 402 M is a compact CNC production lathe with a rigid inclined-bed design. It features linear guides on X and Z axes, a powered collet chuck, a hydraulically operated tailstock quill, high-resolution C-axis and a 12-station BMT turret with driven tools for axial and radial drilling and milling. Standard equipment includes a hinged chip conveyor and a high-performance coolant system. The machine is controlled by SINUMERIK 828 D Basic.

Highlights

• 12-station BMT turret with driven tools
• High-resolution C-axis for contour milling
• Maximum turning diameter 400 mm, center height 200 mm
• Siemens SINUMERIK 828 D Basic control
• Hydraulic 3-jaw collet chuck and hydraulic tailstock quill

Machine design

• Inclined, heavy machine frame for rigidity and efficient chip flow
• Precision linear guides on X and Z for stable machining under load
• Enclosed work area accessible via large sliding door
• Automatic central lubrication for guideways

Spindle

• Spindle mounting: A2-8 with bore 86 mm (75 mm with draw tube)
• Speed range: 50 – 2,000 1/min (Roturn 402 M); some variants up to 3,000 1/min
• Main spindle motor rating: 11 / 15 kW

Tooling

• 12-position turret (BMT) enabling quick tool changes and broad working area
• Tool shank: 20 x 20 mm; boring bar Ø: 32 mm
• Driven-tool speed: up to 3,000 1/min; driven-tool motor: 2.3 kW (continuous)

Tailstock

• Taper: MT 5
• Quill diameter: 88 mm; quill stroke: 80 mm

Auxiliaries / standard equipment

• Hydraulic 3-jaw chuck with through-hole (standard)
• Hinged belt (chain-type) chip conveyor (standard)
• High-performance coolant system (standard)
• Automatic central lubrication, LED work lamp, operator manual and service tools
• Optional: heat exchanger for electrical cabinet, bar feeder interface, Renishaw measuring systems

Control

• SINUMERIK 828 D Basic: compact, robust CNC with QWERTY keyboard and extensive drilling/milling cycles
• Includes ProgramGUIDE, MDynamics, graphical simulation and standard data transfer options

Technical specifications

• Working area: max. workpiece length 340 mm; center height 200 mm; turning diameter over bed 400 mm; turning diameter over support 250 mm; max machining length 330 mm
• Travels: X 150 mm; Z 380 mm
• Rapid feed: X 20,000 mm/min; Z 25,000 mm/min
• Spindle: chuck Ø 250 mm; speed range 50–2,000 1/min; spindle bore 86 mm (75 mm with draw tube)
• Tooling: 12 positions; tool shank 20 x 20 mm; boring bar mount Ø 32 mm; driven tools 3,000 1/min, 2.3 kW
• Tailstock: taper 5 MT; quill Ø 88 mm; stroke 80 mm
• Drive ratings: main motor 15 / 11 kW; coolant pump 0.18 kW; driven tools 2.3 kW
• Overall dimensions (L x W x H): 3.75 m x 1.9 m x 1.92 m; Weight: 3,760 kg