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Speed change gearboxes

Speed change gearboxes

Engageable planetary gearboxes with
two or more ratios

The PULS engageable planetary gearboxes of the S & SL series are a modular system of engageable planetary gearboxes. The gearboxes are available in a wide range of versions and can cover a wide variety of application areas. Through the combination options with our Planetary Gearboxes P Series & Planetary Gearboxes T Series (see the corresponding catalogs), an almost infinite number of variants with output torques of up to 1,000,000 Nm is possible. PULS planetary speed change gearboxes are used in a wide variety of industries, for example

  • construction machines
  • special-purpose vehicle engineering
  • railbound vehicles
  • mining
  • general mechanical engineering
  • and everywhere where switching the gear ratio or an idling function can yield benefits for the application


In addition to our modular system, there is always the option of making customer-specific modifications. Custom gearboxes are also possible.

PULSGETRIEBE has been manufacturing modular planetary gearboxes, including in manual versions, since the 1960s and has continuously refined and expanded the model series in the intervening decades.
Our gearboxes are based on the latest technology in conjunction with decades of experience. In terms of power density and durability, they have been optimized over the past years, always with a view to ensuring dimensional compatibility with older versions so that existing applications can easily be outfitted with more powerful gearboxes.

Characteristics and advantages
of speed change gearboxes at a glance

  • Speed changes at a standstill with no load utilizing gear couplings (type S) or while operating under loads with discs (type SL)
  • Based on the P series planetary gearbox modular system
  • Countless combination options
  • Also with idling function
  • Output torques up to 1,000,000 Nm
  • Covers a larger ratio range
  • For example SL 18000/8 with i = 500 & 30,000