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Liebherr LK 200

LIEBHERR LK 200 – CNC Gear Skiving Machine
Key Technical Data
CNC Control: Siemens HMI (Liebherr LHStation / LHMobile operating concept)
Max. Module: approx. 3.0 mm
Max. Workpiece Diameter: approx. 200 mm
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Max. Workpiece Weight: approx. 25 kg
Table Diameter: approx. 285 mm
Axial Travel:
Axial travel up to approx. 500 mm
Machining Stroke / Shift Distance: approx. 400 mm
Max. Spindle Power: 16 kW
Max. Workpiece Spindle Speed: 3,000 rpm
Max. Feed (radial): 7,500 mm/min
Hob/Tool Speed: up to 4,000 rpm
Max. Tool Diameter: approx. 150 mm

Wet Machining
Especially for internal gears, wet machining offers significant advantages:
The cutting edges are cooled and lubricated during the skiving process, which significantly reduces the thermal load on the tools.
Generated chips are safely removed from the process and do not re-enter the machining cycle.
Optimal chip evacuation leads to improved gear quality and surface finish.

Operating Concept LHStation & LHMobile
Liebherr intelligently separates programming and machine operation into two units:
LHStation (fixed operator panel / monitor):
Large screen area for data entry and process monitoring
Multi-touch interface with additional tactile control elements
Increased operating speed and process reliability
LHMobile (mobile hand-held unit):
10" multi-touch as standard
Context-dependent displays (PLC/NC buttons, program status, messages)
Wired signal transmission for maximum safety during setup
Ideal for ergonomic, operator-friendly handling directly at the machine

Skiving³ – Overview of Advantages
Machine
Highly rigid machine construction with cast iron bed for absorbing process forces
Ring loader concept for rapid workpiece change
Tailstock for shaft machining and optimal workpiece clamping
Optional chamfering during machining available
Break-proof enclosure, suitable for dry and wet machining (oil or emulsion)

Tools
Design and manufacturing of both conical and cylindrical skiving tools
Process-optimized tool design for each component
Tools available in PM-HSS and solid carbide

Process
Comprehensive process analysis and simulation for determining optimal cutting parameters
Use of technology applications for customer-specific process optimization
Collision analysis with calculation software to safeguard the process

Machine Concept – Efficiency through Gear Skiving
Gear manufacturers are looking for alternatives that:
Are more productive and cost-effective than gear shaping
At the same time more flexible than broaching
The LK 200 addresses these needs precisely:
The foundation is the high rigidity of the machine bed and skiving head (special bearing concepts, also for longer tool holders – important for internal gears).
Combined with a break-resistant enclosure, the machine is designed for both dry and wet machining.
The integrated tailstock unit makes the system universally usable:
External and internal gear cutting
Shafts and short gears on a single machine
Through the combination of machine, tool, and process (Skiving³), the LK 200 provides a complete, precisely coordinated solution for highly productive gear skiving.

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