Swing Gearbox

Tailored for use with excavators, cranes, and other construction equipment, as well as ship unloading equipment and other heavy equipment, this range of ZF gearboxes are GFB planetary gearboxes, ideal for use with various mobile and industrial applications, as well as in the wind industry.

These industrial gearbox types can be used in all applications wherever rotary movement in combination with precise positioning is needed, and where high acceleration and braking torques prevail. Also certified for offshore applications, they incorporate the following features & benefits:

  • Standard output torques between 40 & 740 kNm
  • Compact, space-saving planetary design
  • 2-, 3- or 4-staged
  • Easy mounting & comfortable oil change
  • Integrated spring-applied multiple-disk brake
  • Low noise & high efficiency


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ZF Gearboxes

Find out more about our swing gearboxes

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Decades of experience

Industrial gearbox manufacturers ZF Industrieantriebe Witten GmbH incorporate decades of knowledge into the design and production of their swing drives, supplemented by a unique long-term experience in the field of dynamic simulation and testing. The company uses state-of-the-art calculation methods, like the Finite Element Method (FEM), to produce high quality gearboxes, dependable even under the harshest and most challenging conditions.

Gearbox design

The design (and manufacturing quality) of these swing drive gearboxes results in resilient, dependable, low-noise gearboxes of exceptional resilience, reliability, and low noise operation. ZF swing gearboxes GFB are easy to install and easy to maintain, which aids in achieving lower operating costs. They are delivered ready for installation, without oil filling and are painted with standard RAL colours. External flanges, shaft extensions and mounting faces have blank surfaces, and are protected against corrosion.

Collective load class

The maximum output torques T2max indicated under technical data relate to FEM Section 1 as well as DIN 15020. Standard classification categories are time category T5 and K-factor 1 corresponding to collective load class L2 and driver unit class M5. The max. reference output speed is 25 rpm.

Operating conditions

The standard range of swing gearboxes is designed for use at ambient temperatures of between –25° and 40° C, but all swing gearboxes can be designed to the client’s specific applications and requirements.

Motor adaptions

The gearboxes are designed for direct flange attachment of variable or fixed displacement hydraulic motors. They can be supplied with mounted motors and adaptations for various motor suppliers and types, and electric motors are also available.


Ideal for all heavy-duty equipment, the ZF transmission (ZF gearbox or gearbox swing drive) is also found in wheel loaders, skid steer loaders, excavator swings, large excavators, and other large, heavy-duty industrial equipment and applications.


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