CNC lathe

Optimum OPTIturn L440 CNC-Drehmaschine - 2020

OPTIMUM OPTIturn L440 CNC cycle turning machine.

For sale is an absolute high-precision machine: The OPTIMUM OPTIturn L440 combines state-of-the-art CNC technology with extreme robustness. Equipped with the latest SIEMENS control system and SIEMENS servo drives, this machine delivers maximum efficiency for demanding roughing and finishing operations.

• Manufacturer: OPTIMUM
• Model: OPTIturn L440
• Condition: fully functional
• Location: Graz

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• State-of-the-art control system: Siemens SINUMERIK 828D Basic T with ShopTurn (work step programming), 3D simulation, and remaining material detection.
• Maximum precision: Guaranteed repeatability and positioning accuracy of +/- 0.005 mm thanks to laser measurement and high-quality ball screw drives.
• High-speed spindle: Up to 4,500 rpm (pneumatic, automatic changeover between 2 gear stages) for perfect surface finishes.
• Stability & durability: Particularly wide machine bed with hardened and ground double rectangular guide rails – ideal for heavy roughing operations.
• Safety: Siemens Safety Integrated enables safe setup even with the door open.
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Extensive equipment package:
• Hydraulic tool turret: LS160 VDI40 with 8 tool positions
• Hydraulic 3-jaw chuck: Ø 200 mm (bore Ø 52 mm) including hard and soft jaws
• Ease of operation: Portable, electronic handwheel and two fixed handwheels (X/Z axis) on the mobile control panel
• Coolant management: Closed control cabinet with integrated heat exchanger (protects against dirt and overheating)
• Accessories: Powerful coolant system (55 l/min), halogen work light, automatic lubrication (headstock and carriage), 6 machine feet.
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Technical data:

Max. turning length: 1,000 mm | Center height: 235 mm
Swinging Ø over bed: 475 mm | Over cross slide: 240 mm | In the bed bridge: 710 mm
Spindle bore: 65 mm | Mounting: DIN ISO 702-1 No. 6
Spindle speeds Stage 1: 100 - 950 min⁻¹ (525 Nm) | Stage 2: 900 - 4,500 min⁻¹ (382 Nm)
Feed rate X- & Z-axis: up to 15,000 mm/min
Tailstock mounting: MK 4 | Quill travel: 150 mm | Quill Ø: 65 mm
Connection: 400 V / 3 Ph ~50 Hz | Total connection: 20 kW | Drive motor: 11 kW
Dimensions: L x W x H: 3,030 x 1,952 x 2,025 mm | Total weight: approx. 3,000 kg

Contact and inspection:
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The machine is in excellent condition. An inspection under power is possible after prior arrangement.

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