noviembre 30, 2016

FLENDER Gear Units for Reactors



The term «reactor» is used in the chemical industry to refer to special apparatus (e.g. a stirred tank reactor) in which educts are reacted to obtain a desired product.

The reactors for this kind of application are designed to meet very high process and safety standards.

Powders and suspensions such as pastes, doughs etc. are dried in a mixer-dryer-reactor. The drying process that takes place inside the reactor is often required to be rapid yet simultaneously gentle on the product.

The gear units must therefore have a very high efficiency and produce only minimal vibration and noise. It should also be possible to monitor the complete gear unit.

Technical data

Types Helical gear unit
Sizes 28
Gear stages 2-, 3- and 4-stage
Power ratings up to 10,500 kW
Transmission ratios i = 6.3 to 450
Nominal torques 5.8 to 1,400 kNm
Mounting positions horizontal and vertical


  • High efficiency
  • Minimal vibration
  • Low noise level
  • Dip lubrication
  • Complete drive solution mounted on a baseframe, comprising:
    • Motor
    • Input coupling (FLUDEX)
    • Gear unit, incl. monitors
    • Gear coupling on output side


Drying / mixing chemical substances as well as food products of all kinds