BTM3.1-NA-TA-TA-TA-BA-RA-2EA Rexroth Output I/O module

BTM3.1-NA-TA-TA-TA-BA-RA-2EA Rexroth Output I/O module

Brand：Rexroth                                Model number：BTM3.1-NA-TA-TA-TA-BA-RA-2EA

Country of origin:Germany               Product weight：0.55kg

HS code：8517623990

Product Dimensions：

To fulfil this requirement the development of the new A4VHO was started. The intention is to provide a pump that can handle a nominal pressure of 630bar and a maximum pressure of 700bar. This development is based upon the A4VS family which can 

already handle a nominal pressure level of 450bar in the A4VBO version.

This new pressure level leads to very high contact pressures inside the rotary group and therefore many improvements have been carried out. For example, a specially formed contour in the slipper pads was introduced in order to reduce the stress and handle 

higher loads. With this new design, stress was reduced significantly, making the slipper pad suitable for pressure peaks up to 700bar. 

Another very important task is the balancing of the cylinder barrel, which was not designed for 700bar initially. Logically the optimal design for the feed-through in the cylinder barrel are circular holes. Furthermore the hydraulic balancing varies with the 

alternating piston forces, due to the odd number of pistons. This gets even more important, when coming to higher pressures. In order to have a very well balanced and stable running cylinder barrel, the balancing was designed in a totally new way. 

With this new design, hydraulic balancing is adapted to the alternating piston forces and therefore no longer varies significantly. This enables the cylinder barrel to run very 

smoothly. 

In order to qualify the pump for a maximum pressure of 700bar a special test was set up. 

Both pumps were set up as a tandem unit with one driveshaft, one unit operating as pump and the other unit operating as motor. The high pressure side was fed directly from 

the pump into the motor via a steel pipe. In this way standard testing equipment could be used and the secondary unit is already tested in motor mode.

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Colour：new                                   Warranty: 12 months

Lead Time：3-day working day      Price: Please contact us  

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