R900910271 LFA16WEA-7X Rexroth

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The swash plate pump is a long-known design, cf. /1/. Because of wear problems in earlier development stages, high quantities were only reached in the last few decades. 

Today, the swash plate design is deemed to be the most significant hydrostatic piston machine /2/, /3/.

The advantages of axial piston pumps with swash plate design is the high nominal pressure level, variability of the displacement, beneficial efficiencies, through drive capability and low mass of inertia. Typically, swash plate pumps are used in applications 

with high technical requirements, for example construction, agricultural and industrial machinery /4/. 

Figure 1 shows that in comparison to other pump designs, the axial piston pump design is characterized by the highest efficiencies with typical applications for middle to high 

pressure ranges, traditionally used in mobile and industrial hydraulics. The specific speed nq on the x-axis is a function of the speed, flow and specific pump work.

Besides the nominal pressure, more characteristics are relevant for an excellent hydrostatic drive. These are the duration ratio at maximum power, the power ratio, efficiency, speed ratio at atmospheric inlet pressure, the number of possible operation 

modes as well as the required controllers. Another important criteria, noise, is discussed in /6/ and therefore not included in this paper.

Especially in steel plants high pressures are demanded in order to keep the sizes of the cylinders and the framework as small as possible. In order to do so, expensive pressure intensifiers are needed to increase the pressure up to a typical level of well above 600bar. 

In order to reduce the installation equipment, a high pressure pump is required, that directly provides such a high pressure level.

We have the same series of models in stock.  If you don't find the model you need, please contact us and we will provide you with an official quotation！

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Rexroth AC-Mainspindle

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Rexroth 2AD104C-B350A1-CS06-E2N2

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