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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
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
Wet machining provides significant advantages, especially for internal gears:
The cutting edges are cooled and lubricated during the skiving process, significantly reducing thermal load on the tools.
Generated chips are safely removed and not reintroduced into the process.
Optimal chip removal leads to improved gear quality and surface finish.

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

Skiving³ – Advantages at a Glance
Machine
Very rigid machine design with cast bed for absorbing process forces
Ring loader concept for fast workpiece changeover
Tailstock for shaft machining and optimal workpiece clamping
Optional chamfering during machining possible
Break-resistant enclosure, suitable for dry and wet machining (oil or emulsion)

Tool
Design and manufacture 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 to determine optimal cutting data
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Use of technology applications for customer-specific process optimization
Collision analysis with calculation software for process validation

Machine Concept – Efficiency through Gear Skiving
Gear manufacturers are seeking alternatives that are:
More productive and cost-effective than shaping
At the same time more flexible than broaching
The LK-200 targets exactly this:
Its basis is the high rigidity of the machine bed and skiving head (special bearing concepts, suitable also for longer tool holders – critical for internal gears).
In combination with a break-resistant housing, the machine is designed for both dry and wet machining.
The integrated tailstock makes the unit universally usable:
External and internal gears
Shafts and short gears in a single machine
By combining machine, tool, and process (Skiving³), the LK 200 delivers a complete, fully integrated solution for highly productive gear skiving.

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