Rexroth Pump

Series 33

Sizes NG71, 90

Nominal pressure 400 bar

Peak pressure 450 bar

Closed circuit

For the drum drive in mobile concrete mixers

Product Details

Series 33

Sizes NG71, 90

Nominal pressure 400 bar

Peak pressure 450 bar

Closed circuit

For the drum drive in mobile concrete mixers

Features

- Variable axial piston pump of swashplate design for hydro-static closed circuit transmission

- Flow is proportional to drive speed and displacement and is infinitely variable

- Flow increases with the swivel angle of the swashplate from 0 to its maximum value

- Flow direction changes smoothly when the swashplate ismoved through the neutral position

- Two pressure-relief valves are provided on the high pressure ports to protect the hydrostatic transmission (pump and motor) from overload

- The high-pressure relief valves also function as boost valves

- The integrated boost pump acts to replenish leakage and provide control oil.

- The maximum boost pressure is limited by a built-in boost-pressure-relief valve

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