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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 Turning Machine with Siemens SINUMERIK 828D control impresses with its performance, speed, precision, and long service life.

Dimensions and Weights
Max. Width/Depth: 2300 mm
Length approx.: 2530 mm
Width/Depth approx.: 1595 mm
Height approx.: 1795 mm
Weight approx.: 2600 kg

Working Areas
Chuck diameter: 150 mm
Chuck actuation: hydraulic
Center height: 223 mm
Distance between centers: 850 mm
Swing over bed: 446 mm
Swing over gap: 520 mm
Swing over cross slide: 240 mm
Bed width: 300 mm

Axis Drive Torque
X-axis: 6 Nm
Z-axis: 8.5 Nm

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

Electrical Data
Drive motor power: 7 kW
Connection voltage: 400 V
Mains frequency: 50 Hz
Total connected load: 23 kVA

Precision
Repeatability: ± 0.005 mm
Positioning accuracy: ± 0.005 mm

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

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

Machine Data
Spindle bore diameter: 40 mm

Motor(s)
Drive motor torque: 33 Nm

Tailstock
Taper: MT 4
Quill stroke: 165 mm
Quill diameter: 52 mm

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

Control
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 power (continuous S1): 7 kW
Drive motor power S6-30% duty cycle: 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
Feed force X-axis: 7.5 kN
Feed force Z-axis: 5.3 kN

Tool Changer
Type: hydraulic; VDI 30
Number of tool stations: 8
Maximum tool size (square): 20 x 20 mm
Maximum boring bar diameter: 25 mm

SIEMENS SAFETY INTEGRATED

Equipment
Main Spindle
• Robust design

Machine Bed
• Heavily ribbed
• High rigidity and durability

Guides
• Stable flatbed guides

Ball Screws
• For high rapid traverse speeds on all axes
• Reduced wear
• High positioning and repeat accuracy
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Cast Body
• Hardened to HRC48-52 and heat-treated

Machine Feet
• Six pieces
• Optimal machine leveling

Heat Exchanger
• Enclosed control cabinet with intelligent cooling management
• Optimum temperature even at high ambient temperatures

Tool Change System
• Eight tool stations
• Hydraulic VDI30 tool changer
• Max. tool height 20 mm

Hydraulic Unit
• Motor power 750 W
• Tank capacity 50 liters
• Clamping/operating pressure 2,500 – 2,942 kPa

Three-jaw Chuck
• Hydraulic three-jaw chuck Ø 150 mm
• Hydraulic clamping and release via foot switch
• Easy clamping of workpieces
• Hard and soft block jaws

Central Lubrication System
• Automatic interval lubrication
• Reduces wear on bearings, guides, and ball screws
• With float switch. An acoustic signal sounds when oil level is too low

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