LC 2000 - 12000 | Gear hobbing machines

LC 2000 - 12000

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liebherr-gear-hobbing-LC2000-12000-process-example

Machine concept

Is performance-related gear cutting possible on your machine? As nowadays the need to be economical is more important than ever, modern machines are required.

The Liebherr LC series ensures reliable machining with the required torques and cutting forces. This allows us to reinforce the capability of modern CNC gear hobbing machines.

The machine concept fulfills quality requirements such as accuracy, stability and temperature resistance. Stable processes are realized during pre- and finish cutting.

Is dry gear hobbing for large modules (m>10) possible? Yes, as you can see in the picture on the left.

liebherr-gear-hobbing-LC2000-12000-machine-concept

Flexible layouts possible
Chip conveyor can be retracted if required (shaft machining)
Temperature stable, as there is no direct connection between machine table, machine bed and counter column. The connection is made via the foundation.
Welded machine bed for higher rigidity
Hardened guideways
Use of flat guides for increased damping and reduction of vibrations

_{X1 - Radial movement column slide | V1 - Tangential movement tool | Z1 - Axial travel tool | B1 - Rotary movement tool | C2 - Rotary movement workpiece | A1 - Swivel movement tool | Z4 - Vertical travel tailstock}

liebherr-gear-hobbing-LC2000-12000-direct-drive

Process-related drive selection

In this series, you can select between direct drive and gear drive.
All machine tables are equipped with a hydrostatic bearing.

_{Picture on the left: Machine table with direct drive}

liebherr-gear-hobbing-LC2000-12000-double-worm-drive

Process-related drive selection

For internal machining of workpieces, chip removal can be done through the table bore.

_{Figure on the left: Machine table with double worm drive}

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Hob heads

Impressions

Customer projects

Not an off-the-shelf machine: LC 4000 for HMC

With the LC 4000, Liebherr is breaking new ground in the production of large gears and combining different hobbing methods on a highly efficient machine for the American gear specialist.

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Innovative gear cutting center for hobbing, profile millling and 4-axis milling

The machine has a new type of direct-drive cutter head as well as an additional finger milling head for external and internal gears with its own main column. This enables machining with hobbing, profile milling, and 4-axis milling on a single machine which is optimal for the manufacture of herringbone and double helical gears.

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Technical data

Variants	LC 1500	LC 2000	LC 2500	LC 3000	LC 4500	LC 6000	LC 8000	LC 10000	LC 12000

Discover more products from Liebherr-Verzahntechnik GmbH:

Software/control technology

The new, user-friendly LHGearTec user interface makes it much easier to operate the gear cutting machine and has many advantages for the operator.

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liebherr-gear-hobbing-lc180-280-sustainable

Energy and resource efficiency

Liebherr has analyzed its gear cutting machines in extensive testing. It is true that every 100 watts saved reduces environmental impact and justifies evaluation!
- Regenerative drive technology
- Use of efficient control cabinet coolers
- LED technology lighting
- Coolant supply and
- preparation with speed-controlled pumps