Axial piston fixed pumpA2FO Series 70
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Catalog excerpts

Axial piston fixed pumpA2FO Series 70 - 1

The Drive & Control Company Rexroth Bosch Group Axial piston fixed pump A2FO Series 70 RE 91405 Edition: 05.2017 ► Compact high-pressure pump with short installation length ► Sizes 45...90 ► Nominal pressure 400 bar ► Maximum pressure 450 bar ► Open circuit Features ► For use in mobile and stationary applications ► Flow is proportional to drive speed and displacement ► Large variety of available nominal sizes allows exact adjustment ► High power density ► Compact dimensions ► High total efficiency ► Bent-axis design Contents Type code 2 Working pressure range 4 Project planning notes 14

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Axial piston fixed pumpA2FO Series 70 - 2

A2FO Series 70 | Axial piston fixed pump Type code Notice ► Note the project planning notes on page 14. ► In addition to the type code, please specify the relevant technical data when placing your order.

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Axial piston fixed pumpA2FO Series 70 - 3

Axial piston fixed pump | A2FO Series 70 3 Hydraulic fluid Hydraulic fluid The axial piston unit is designed for operation with HLP Notes on selection of hydraulic fluid The hydraulic fluid should be selected so that the operating Application instructions and requirements for hydraulic fluid viscosity in the operating temperature range is within the selection, behavior during operation as well as disposal and optimum range (νopt see selection diagram). environmental protection should be taken from the following data sheets before the start of project planning: ▶▶ 90220: Hydraulic fluids...

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Axial piston fixed pumpA2FO Series 70 - 4

A2FO Series 70 | Axial piston fixed pump Flow direction Flow direction Direction of rotation, viewed on drive shaft clockwise counter-clockwise Filtration of the hydraulic fluid Finer filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit. A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406. At very high hydraulic fluid temperatures (maximum 103 °C, measured at port T), a cleanliness level of at least 19/17/14 according to ISO 4406 is necessary. Pressure at working port A or B Definition...

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Axial piston fixed pumpA2FO Series 70 - 5

Axial piston fixed pump | A2FO Series 70 5 Flow direction Single operating period Maximum pressure pmax Nominal pressure pnom Minimum pressure (high-pressure side) Time t Total operating period = t1 + t2 + ... + tn ▼▼ Rate of pressure change RA max

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Axial piston fixed pumpA2FO Series 70 - 6

A2FO Series 70 | Axial piston fixed pump Technical data Size Displacement, geometric, per revolution Rotational speed maximum11 Rotary stiffness Moment of inertia for rotary group Maximum angular acceleration Case volume Weight approx. Hydraulic-mechanical efficiency nt Total efficiency (nt = nv x nhm) Notice ► Theoretical values, without efficiency and tolerances; values rounded ► Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Other permissible limit values, such as...

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Axial piston fixed pumpA2FO Series 70 - 7

Axial piston fixed pump | A2FO Series 70 Technical data Drive shaft Type code with splined shaft with keyed shaft Maximum radial force at distance a (from shaft collar) Maximum differential pressure at Fq max Maximum axial force at standstill or pressure-free operation Permissible axial force per bar working pressure Effect of radial force Fq on bearing service life By selecting a suitable direction of radial force Fq, the load on the bearings, caused by the internal rotary group forces can be reduced, thus optimizing the service life of the bearings. Recommended position of mating gear is...

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Axial piston fixed pumpA2FO Series 70 - 8

A2FO Series 70 | Axial piston fixed pump Dimensions for sizes 45, 56 and 63 Ports Standard Size pmax[bar]1 State61 Fastening thread DIN 13 M10 x 1.5; 17 deep Fastening thread DIN 13 M10 x 1.5; 17 deep R Air bleed port DIN 38525> M12 x 1.5; 12 deep 3 X 4) Depending on installation position, T1 or T2 must be connected (see also installation instructions on page 12). 5) The countersink can be deeper than as specified in the standard. 6) O = Must be connected (plugged on delivery) X = Plugged (in normal operation) Depending on the application, momentary pressure peaks may occur. Keep this in...

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Axial piston fixed pumpA2FO Series 70 - 9

Axial piston fixed pump | A2FO Series 70 9 Dimensions for sizes 45, 56 and 63 ▼▼ Splined shaft DIN 5480, sizes 45 and 56 ▼▼ Parallel keyed shaft, DIN 6885, sizes 45 and 56 35 ▼▼ Splined shaft DIN 5480, sizes 56 and 63 ▼▼ Parallel keyed shaft, DIN 6885, sizes 56 and 63 Center bore according to DIN 332 (thread according to D

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Axial piston fixed pumpA2FO Series 70 - 10

10 A2FO Series 70 | Axial piston fixed pump Dimensions for sizes 80 and 90 Ports A, B Working port Fastening thread S Suction port Fastening thread Ti Drain port Standard Size pmax [bar]1 2 State61 4) Depending on installation position, Ti or T2 must be connected (see also installation instructions on page 12). 5) The countersink can be deeper than as specified in the standard. 6) O = Must be connected (plugged on delivery) X = Plugged (in normal operation) Depending on the application, momentary pressure peaks can occur. Keep this in mind when selecting measuring devices and fittings. Only...

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Axial piston fixed pumpA2FO Series 70 - 11

Axial piston fixed pump | A2FO Series 70 11 Dimensions for sizes 80 and 90 ▼▼ Splined shaft DIN 5480, size 80 ▼▼ Parallel keyed shaft, DIN 6885, size 80 40 ▼▼ Splined shaft DIN 5480, sizes 80 and 90 ▼▼ Parallel keyed shaft, DIN 6885, sizes 80 and 90 Center bore according to DIN 332 (thread according to

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Axial piston fixed pumpA2FO Series 70 - 12

12 A2FO Series 70 | Axial piston fixed pump Installation instructions General The axial piston unit must be filled with hydraulic fluid and air bled during commissioning and operation. This must also be observed following a longer standstill as the axial piston unit may empty via the hydraulic lines. Particularly in the installation position “drive shaft upwards”, filling and air bleeding must be carried out completely as there is, for example, a danger of dry running. The leakage in the housing area must be directed to the reservoir via the highest drain port (Ti, T2). If a shared drain...

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Axial piston fixed pumpA2FO Series 70 - 13

Axial piston fixed pump | A2FO Series 70 13 Installation instructions Above-reservoir installation Above-reservoir installation means that the axial piston unit is installed above the minimum fluid level of the reservoir. Recommendation for installation position 8 (drive shaft upward): Notice Port F is part of the external piping and must be provided on the customer side to make filling and air bleeding easier. A check valve in the drain line (cracking pressure 0.5 bar) can prevent the housing area from draining. Installation position

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