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Optimum L44 CNC

The machine is on display and has only been used for demonstration purposes. Optiturn L44 CNC Premium CNC Lathe – directly from the manufacturer.

L44 CNC – The OPTIMUM Premium CNC lathe with Siemens SINUMERIK 828D control system stands out for its performance, speed, precision, and long service life.

Dimensions and Weight:
- Max. width/depth: 2300 mm
- Approx. length: 2530 mm
- Approx. width/depth: 1595 mm
- Approx. height: 1795 mm
- Approx. weight: 2600 kg

Working Range:
- Chuck diameter: 150 mm
- Chuck clamping actuation: hydraulic
- Centre height: 223 mm
- Centre distance: 850 mm
- Swing diameter over bed: 446 mm
- Swing diameter over gap: 520 mm
- Swing diameter over cross slide: 240 mm
- Bed width: 300 mm

Servo Torque:
- X-axis: 6 Nm
- Z-axis: 8.5 Nm

Spindle Speed Range:
- Number of speed ranges: 1
- Spindle speed range: 10 – 3000 rpm

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Electrical Data:
- Drive motor power: 7 kW
- Voltage: 400 V
- Network frequency: 50 Hz
- Total connected load: 23 kVA

Accuracy:
- Repeatability: ± 0.005 mm
- Positioning accuracy: ± 0.005 mm

Hydraulic System:
- Motor power: 0.75 kW
- Tank capacity: 50 l

Ball Screw:
- X-axis diameter: 25 mm
- X-axis lead P: 5 mm
- X-axis accuracy grade: C3
- Z-axis diameter: 40 mm
- Z-axis lead P: 5 mm
- Z-axis accuracy grade: C3

Coolant System:
- Coolant pump power: 270 W
- Tank capacity: 90 l

Machine Data:
- Spindle bore diameter: 40 mm
- Drive motor torque: 33 Nm

Tailstock:
- Taper: MT 4
- Quill travel: 165 mm
- Quill diameter: 52 mm

Spindle:
- Spindle nose: DIN ISO 702-1 No. 5
- Spindle bore/bar capacity: 52 mm

Controller:
- Type: Sinumerik 828D PPU 240
- System software: SW 24
- CNC memory: 3 MB
- Look Ahead: 50
- Block change time: 3 ms
- Number of tools: 128

Travel:
- X-axis: 250 mm
- Z-axis: 760 mm

Vertical Spindle:
- Drive motor continuous power S1: 7 kW
- Drive motor S6-30% duty cycle power: 16 kW
- Drive motor torque: 33 Nm
- Drive motor torque S6-30% duty cycle: 80 Nm

Feed Rate:
- X-axis: 15,000 mm/min
- Z-axis: 15,000 mm/min

Feed Force:
- X-axis: 7.5 kN
- Z-axis: 5.3 kN

Tool Changer:
- Type: hydraulic; VDI 30
- Number of tool stations: 8
- Max. square tool shank height/width: 20 x 20 mm
- Max. boring bar diameter: 25 mm

Features:
- Siemens spindle and servo motors
- Full enclosure with safety interlock
- Standard with max. spindle speed up to 3000 rpm
- Automatic central lubrication
- Swiveling control panel
- Tailstock cover
- Electronic hand wheels for X and Z axes
- Coolant system with 90-liter tank
- RJ45 connection, USB port, and 230 V power socket
- EMC (Electromagnetic compatibility)
- Six leveling feet
- Operator tools included

SINUMERIK 828D Basic – COMPLETE PACKAGE
- Safety Integrated
- Remainder material detection and machining
- ShopTurn step programming
- Network drive management
- 3D simulation
- Graphical tracking

Control:
- 10.4” color display
- 4:3 format
- User-friendly SINUMERIK Operate software
- Front interfaces: USB 2.0, RJ45 Ethernet, Compact Flash (CF) Card

Guides:
- Rigid flat-bed guideways

Ball Screw:
- For high rapid traverse speeds on all axes
- Reduced wear
- High positioning and repeat accuracy

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