Electric travel drives
With the launch of the new FAT 325 in 2015, Liebherr added an electric version to its hitherto hydraulically operated travel drives. On the one hand, this development takes into account the increasing demand for electrically powered crawler-tracked vehicles. On the other hand, it meets the demand for environmentally friendly technologies, since electric travel drives need neither hydraulic lines nor hydraulic oil.
Advantages at a glance
- Extremely compact design of the system
- Unique construction of the gearboxes to ensure uniform load distribution
- High power and torque density in the transmission
- Service-friendly integral design of main bearing
- IP67 protection and durable sealing systems guarantee optimal protection from environmental influences
Application specific systems
In 2015, Liebherr offered a complete drive train – from the inverter, the motor to the travel drives – for the first time. In cooperation with the customer, SBM Mineral Processing GmbH of MFL Group, the first electric travel drives were successfully put into operation in the field of processing technology in the summer of 2016. The Austrian company is among others a leading supplier of mobile crushing plants.
Our exhibits at Bauma China
At Bauma China, Liebherr exhibits an optimally matched system of travel drive and electric motor. Thanks to a high degree of IP rating this can be applied in various machines within diverse fields of application.
Travel drive FAT 325
The coaxial travel drive is designed as a basic model for machines with roughly 30 to 40 tons operating weight and speeds up to 5 km/h. It is ideal for crawler vehicles with a diesel-electric drivetrain. The FAT 325 can for example be driven by a Liebherr electric motor PGK 18/10-J.
|Gear ratio||1:60 - 1:130|
|Output torque:||50,000 Nm (dyn.)|
|Applications:||Travel drive for crawler machinery with a weight of 30 - 40 ton|
Electric motor PGK 18/10-J
The special winding layout of the motor with permanent magnet technology ensures a high torque with a compact design. This allows precise positioning of the drivetrain between the chains of the crawler vehicle. The electric motor PGK 18/10-J drive for example a Liebherr travel drive FAT 325.
|Design||Permanent magnet motor|
|Rated power:||13.5 kW|
|Rated voltage:||376 - 400 V|
|Rated speed:||600 - 1,700 rpm|
|Insulation class:||F (155°C)|
|IP rating:||IP 67|
|Applications:||Travel drive for crawler machinery with a weight of 30-40 ton|