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A2FO series 6x

● All-purpose high pressure pump

● Size 5 … 1000

● Nominal pressure up to 400 bar

● Maximum pressure up to 450 bar

● Open circuit

● Metric version
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Features
Type Code
Technical Data
Dimension
Design Notes
Safety
● Robust pump with long service life
● Very high total efficiency
● High power density
● Large variety of available nominal sizes allows exact adjustment to the application
● Optional with long-life bearings for the nominal sizes 250 to 1000
● Bent-axis design

Size 5


Drive shafts


Ports

Size

5

B (A)

Working port

Size

M18 × 15; 12 mm deep

Standard 1)

DIN 3852

State on delivery

With protective cover (must be connected)

S

Suction port

Size

M22 × 15; 14 mm deep

Standard 1)

DIN 3852

State on delivery

With protective cover (must be connected)

T1

Drain port

Size

M10 × 1; 8 mm deep

Standard 1)

DIN 3852

State on delivery 2)

Plugged (observe installation instructions)

T2

Drain port

Size

M10 × 1; 8 mm deep

Standard 1)

DIN 3852

State on delivery 2)

With protective cover (observe installation instructions)

Size 10 … 16


Drive shafts Z and A


Drive shafts P and B


Ports

Size

10 12 16

B (A)

Working port

Size

M22 × 15; 14 mm deep

Standard 1)

DIN 3852

State on delivery

With protective cover (must be connected)

S

Suction port

Size

M33 × 2; 18 mm deep

Standard 1)

DIN 3852

State on delivery

With protective cover (must be connected)

T1

Drain port

Size

M12 × 15; 12 mm deep

Standard 1)

DIN 3852

State on delivery 2)

Plugged (observe installation instructions)

T2

Drain port

Size

M12 × 15; 12 mm deep

Standard 1)

DIN 3852

State on delivery 2)

With protective cover (observe installation instructions)

R

Air bleed port

Size

M8 × 1; 8 mm deep

Standard 1)

DIN 3852

State on delivery

Plugged

Size 23 … 180


Size

D1

D3

D4

D6

D8

D9

D10

D11

D12

D13

D14

D15

D16

D17

D18

D19

D20

D21

D22

D25

D28

D29

D32

D40

D41

D42

D43

D44

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

23 100 0
- 0.022
190 117 60 18 8 25 23.2 70 144 88 166 14 25 106 56 42 61 9 118 125 11 106 18.2 40.5 13 22.2 47.6
28 100 0
- 0.022
190 117 60 18 8 25 23.2 70 144 88 166 14 25 106 56 42 61 9 118 125 11 106 18.2 40.5 13 22.2 47.6
32 100 0
- 0.022
190 117 60 18 8 25 23.2 70 144 88 166 14 25 106 56 42 61 9 118 125 11 106 18.2 40.5 13 22.2 47.6
160 180 0
- 0.025
294 188 101 25 10 40 37.2 121 237 149 271 15 47 158 96 72 108 13 210 224 17.5 180 31.8 66.7 32 35.7 69.9
180 180 0
- 0.025
294 188 101 25 10 40 37.2 121 237 149 271 15 47 158 96 72 108 13 210 224 17.5 180 31.8 66.7 32 35.7 69.9

Drive shafts Z and A


Splined shaft DIN 5480

NG

Code

Designation

Thread G

N2

N3

N4

N5

ØN6

mm

mm

mm

mm

mm

23 Z W25×1.25×18×9g M8 × 1.25 6 19 28 43 35
A W30×2×14×9g M10 × 1.5 7.5 22 27 35 35
28 Z W25×1.25×18×9g M8 × 1.25 6 19 28 43 35
A W30×2×14×9g M10 × 1.5 7.5 22 27 35 35
32 A W30×2×14×9g M10 × 1.5 7.5 22 27 35 35
160 Z W45×2×21×9g M16 × 2 12 36 42 50 60
A W50×2×24×9g M16 × 2 12 36 44 55 60
180 A W50×2×24×9g M16 × 2 12 36 44 55 60

Drive shafts P and B

Parallel keyed shaft DIN 6885

NG

Code

Designation

Thread G

⌀N1

N2

N3

N5

⌀N6

N7

N8

mm

mm

mm

mm

mm

mm

mm

mm

23 P ⌀25, AS8×7×40 M8 × 1.25 25 + 0.015
+ 0.002
6 19 50 35 28 8
B ⌀30, AS8×7×40 M10 × 1.5 30 + 0.015
+ 0.002
7.5 22 50 35 33 8
28 P ⌀25, AS8×7×40 M8 × 1.25 25 + 0.015
+ 0.002
6 19 50 35 28 8
B ⌀30, AS8×7×40 M10 × 1.5 30 + 0.015
+ 0.002
7.5 22 50 35 33 8
32 B ⌀30, AS8×7×40 M10 × 1.5 30 + 0.015
+ 0.002
7.5 22 50 35 33 8
160 P ⌀45, AS14×9×70 M16 × 2 45 + 0.018
+ 0.002
12 36 90 60 48.5 14
B ⌀50, AS14×9×70 M16 × 2 50 + 0.018
+ 0.002
12 36 90 60 53.5 14
180 B ⌀50, AS14×9×70 M16 × 2 50 + 0.018
+ 0.002
12 36 90 60 53.5 14

Ports

Size

23 28 32 160 180

B (A)

Working port

Size

1/2 in 1 1/4 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M8 × 125; 15 mm deep M14 × 2; 19 mm deep

State on delivery

With protective cover (must be connected)

S

Suction port

Size

3/4 in 1 1/2 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M10 × 15; 17 mm deep M12 × 175; 20 mm deep

State on delivery

With protective cover (must be connected)

T1

Drain port

Size

M16 × 15; 12 mm deep M22 × 15; 14 mm deep

Standard 2)

DIN 3852

State on delivery 3)

Plugged (observe installation instructions)

T2

Drain port

Size

M16 × 15; 12 mm deep M22 × 15; 14 mm deep

Standard 2)

DIN 3852

State on delivery 3)

With protective cover (observe installation instructions)

R

Air bleed port

Size

M10 × 1; 12 mm deep M14 × 15; 12 mm deep

Standard 2)

DIN 3852

State on delivery

Plugged

Size 200


Drive shafts


Ports

Size

200

B (A)

Working port

Size

1 1/4 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M14 × 2; 19 mm deep

State on delivery

With protective cover (must be connected)

S

Suction port

Size

3 1/2 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M16 × 2; 24 mm deep

State on delivery

With protective cover (must be connected)

T1

Drain port

Size

M22 × 15; 14 mm deep

Standard 2)

DIN 3852

State on delivery 3)

Plugged (observe installation instructions)

T2

Drain port

Size

M22 × 15; 14 mm deep

Standard 2)

DIN 3852

State on delivery 3)

With protective cover (observe installation instructions)

R

Air bleed port

Size

M14 × 15; 12 mm deep

Standard 2)

DIN 3852

State on delivery

Plugged

Size 250


Drive shafts

Ports

Size

250

B (A)

Working port

Size

1 1/4 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M14 × 2; 19 mm deep

State on delivery

With protective cover (must be connected)

S

Suction port

Size

2 1/2 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M12 × 175; 17 mm deep

State on delivery

With protective cover (must be connected)

T1

Drain port

Size

M22 × 15; 14 mm deep

Standard 2)

DIN 3852

State on delivery 3)

With protective cover (observe installation instructions)

T2

Drain port

Size

M22 × 15; 14 mm deep

Standard 2)

DIN 3852

State on delivery 3)

Plugged (observe installation instructions)

U

Bearing flushing

Size

M14 × 15; 12 mm deep

Standard 2)

DIN 3852

State on delivery

Plugged

Size 355 … 1000


Size

D1

D3

D4

D5

D7

D8

D9

D10

D11

D12

D14

D15

D18

D20

D24

D25

D27

D28

D29

D30

D32

D40

D41

D42

D43

D44

D45

D47

D48

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

355 280 0
- 0.081
350 198 171 250 28 14 50 48 128 102 320 83 83 23.5 335 360 320 18 M18 245 36.5 79.4 40 50.8 88.9 63 60 50
500 315 0
- 0.081
396 220 192 276 30 14 50 48 142 112.5 362 98 111 27.5 375 400 360 22 M20 270 36.6 79.4 40 62 106.4 75 65 55
710 400 0
- 0.089
507 249 236 344 35 14 50 47 183 102 485 131 156 41.5 465 500 450 22 M24 340 44.5 96.8 50 77.8 130.2 100 85 70
1000 400 0
- 0.089
511 277 236 344 35 14 50 47 183 143 468 131 156 41.5 465 500 450 22 M24 340 44.5 96.8 50 77.8 130.2 100 85 70

Drive shaft Z


Splined shaft DIN 5480

NG

Code

Designation

Thread G

N2

N3

N4

N5

⌀N6

mm

mm

mm

mm

mm

355 Z W60×2×28×9g M20 × 2.5 15 42 71 82 70
500 Z W70×3×22×9g M20 × 2.5 15 42 67 80 80
710 Z W90×3×28×9g M24 × 3 18 50 91 105 100
1000 Z W90×3×28×9g M24 × 3 18 50 91 105 100

Drive shaft P

1) Center bore according to DIN 332 (thread according to DIN 13)

Parallel keyed shaft DIN 6885

NG

Code

Designation

Thread G

⌀N1

N2

N3

N5

⌀N6

N7

N8

mm

mm

mm

mm

mm

mm

mm

mm

355 P ⌀60, AS18×11×100 M20 × 2.5 60 + 0.03
+ 0.011
15 42 105 70 64 18
500 P ⌀70, AS20×12×100 M20 × 2.5 70 + 0.03
+ 0.011
15 42 105 80 74.5 20
710 P ⌀90, AS25×14×125 M24 × 3 90 + 0.035
+ 0.013
18 50 130 100 95 25
1000 P ⌀90, AS25×14×125 M24 × 3 90 + 0.035
+ 0.013
18 50 130 100 95 25

Ports

Size

355 500 710 1000

B (A)

Working port

Size

1 1/2 in 2 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M16 × 2; 21 mm deep M20 × 25; 30 mm deep

State on delivery

With protective cover (must be connected)

S

Suction port

Size

2 1/2 in 3 in 4 in

Standard

Dimensions according to SAE J518

Fastening thread 1)

M12 × 175; 17 mm deep M16 × 2; 24 mm deep

State on delivery

With protective cover (must be connected)

T1

Drain port

Size

M33 × 2; 18 mm deep M42 × 2; 20 mm deep

Standard 2)

DIN 3852

State on delivery 3)

With protective cover (observe installation instructions)

T2

Drain port

Size

M33 × 2; 18 mm deep M42 × 2; 20 mm deep

Standard 2)

DIN 3852

State on delivery 3)

Plugged (observe installation instructions)

U

Bearing flushing

Size

M14 × 15; 12 mm deep M18 × 15; 12 mm deep

Standard 2)

DIN 3852

State on delivery

Plugged

MB (MA)

Measuring port pressure A, B

Size

M14 × 15; 12 mm deep

Standard 2)

DIN 3852

State on delivery

Plugged

MS

Measuring port suction pressure

Size

M14 × 15; 12 mm deep

Standard 2)

DIN 3852

State on delivery

Plugged

Installation instructions

General

  • During commissioning and operation, the axial piston unit must be filled with hydraulic fluid and air bled. This must also be observed following a relatively long standstill as the axial piston unit may drain back to the reservoir 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 case drain fluid in the housing must be directed to the reservoir via the highest available drain port (T1,T2).
  • If a shared drain line is used for several units, make sure that the respective case pressure is not exceeded. The shared drain line must be dimensioned to ensure that the maximum permissible case pressure of all connected units is not exceeded in any operating conditions, specifically on cold start. If this is not possible, separate reservoir lines must be laid as required.
  • To achieve favorable noise values, all connecting lines should be decoupled by using elastic elements and above-reservoir installation is to be avoided.
  • In all operating conditions, the suction and drain lines must lead into the reservoir below the minimum fluid level. The permissible suction height hS results from the overall loss of pressure; it must not, however, be higher than hS max = 800 mm. The minimum suction pressure at port S must also not fall below 0,8 bar absolute during operation and during cold start.
  • When designing the reservoir, ensure adequate space between the suction line and the drain line.This provides a slow-down and desgasification of the fluid and prevents that heated return flow is being drawn directly back into the suction line.

Installation position

See the following examples 1 to 8.

Further installation positions are possible upon request. Recommended installation position: 1 and 2.

Below-tank installation (standard)

Below-tank installation is at hand if the axial piston unit is installed below the minimum liquid level outside the tank.

Installation position

Air bleeding

Filling

1

T1

2

T2

3

T1

4

R (U)

T2

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): A check valve in the drain line (cracking pressure 0,5 bar) can prevent draining of the pump housing.

Installation position

Air bleeding

Filling

5

F

T1 (F)

6

F

T2 (F)

7

F

T1 (F)

8

R (U)

T2 (F)

Key

F

Filling / Air bleeding

R

Air bleed port

U

Bearing flushing / air bleed port

S

Suction port

T1, T2

Drain port

ht min

Minimum required immersion depth (200 mm)

hmin

Minimum required spacing to reservoir bottom (100 mm)

SB

Baffle (baffle plate)

hS max

Maximum permissible suction height (800 mm)

Note: Connection F is part of the external piping and must be provided on the customer side to simplify the filling and bleeding.

Note

  • Connection F is part of the external piping and must be provided on the customer side to simplify the filling and bleeding.

General project planning notes

  • The axial piston unit is designed to be used in open circuits.
  • The project planning, installation and commissioning of the axial piston unit require the involvement of qualified skilled personnel.
  • Before using the axial piston unit, please read the corresponding instruction manual completely and thoroughly. If necessary, request it from Bosch Rexroth.
  • Before finalizing your design, request a binding installation drawing.
  • The specified datas and notes must be observed.
  • Preservation: Our axial piston units are supplied as standard with preservative protection for a maximum of 12 months. If longer preservative protection is required (maximum 24 months), please specify this in plain text when placing your order. The preservation times are valid under optimal storage conditions. Details of these conditions can be found in the data sheet 90312 or the instruction manual.
  • A pressure relief valve is to be provided in the hydraulic system.
  • Observe the instructions in the instruction manual regarding tightening torques of connection threads and other threaded joints used.
  • The notes in the instruction manual on tightening torques of the port threads and other screw joints must be observed.
  • The ports and fastening threads are designed for the permissible maximum pressure pmax (see instruction manual). The machine or system manufacturer must ensure that the connecting elements and lines correspond to the specified operating conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors.
  • The working ports and function ports are only intended to accommodate hydraulic lines.
  • During and shortly after operation, there is a risk of burns on the axial piston unit. Take appropriate safety measures (e.g. by wearing protective clothing).
Application scenarios