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Axial Piston Fixed Pump HD-A2FO

Axial Piston Fixed Pump HD-A2FO

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MOQ: 100 PCS

Note: If you have any questions,please contact us

  • 1.Sizes 5~500 ,Series 6, Nominal pressure 400 bar, Maximum pressure 450 bar
  • 2.Fixed pump with axial tapered piston rotary group of bent-axis design, for hydro-static drives in an open circuit.
  • 3.For use in mobile and stationary applications,the flow is proportional to the drive speed and displacement.
  • 4. The drive shaft bearings are designed for the bearing service life requirements usually encountered in these areas.
  • 5. High power density,Small dimensions,High total efficiency,Economical design, One-piece tapered piston with piston rings for sealing
  • HD-A2FO
BEIJING HUADE HYDRAULIC INDUSTRIAL GROUP CO.,LTD

BEIJING HUADE HYDRAULIC INDUSTRIAL GROUP CO.,LTD

Since:

1979

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Product Description

 

HD-A2FO Axial Piston Fixed Pump Ordering Code


 

HD-A2FO Axial Piston Fixed Pump Ordering Code .png
HD-A2FO Axial Piston Fixed Pump Ordering Code .png

HD-A2FO Axial Piston Fixed Pump Technical Data

Shaft seal…Permissible pressure loading

p The service life of the shaft seal is influenced by the speed of the axial piston unit and the case drain pressure (case pressure).

p The mean differential pressure of 2 bar between the case and the ambient pressure may not be enduringly exceeded at normal operating temperature.

p For a higher differential pressure at reduced speed, see diagram.

Momentary pressure spikes (t < 0.1 s) of up to 10 bar are permitted. The service life of the shaft seal decreases with an increase in the frequency of pressure spikes.

p The case pressure must be equal to or higher than the ambient pressure.

n Static characteristic

p Sizes 10 to 200

HD-A2FO Axial Piston

Temperature range

The FKM shaft seal may be used for case drain temperatures from -25 °C to +115 °C

For application cases below -25 °C, an NBR shaft seal is required (permissible temperature range: -40 °C to +90 °C). State NBR     shaft seal in plain text when ordering. Please contact us .

Direction of flow

 

Direction of rotation, viewed on drive shaft

 

Direction of flow

 

clockwise (R)

 

S → B

counter-clockwise (L)

 

S → A

 

 

Long-life bearing

Sizes 250~500

For long service life and use with HF hydraulic fluids. Identical external dimensions as motor with standard bearings. Sub-    sequent conversion to long-life bearings is possible.

Bearing and case flushing via port U is recommended .

Flushing flow...recommended

 

Sizes250355500
qv flush   (l/min)101616
PortsPort forDiagram

A, B

S

T

U(Sizes 250~500)

Working port

Suction port

Drain port

Flushing port

Working pressure range

Working pressure range valid when using hydraulic fluids based on mineral oils

 

HD-A2FO Axial Piston

 

Note:Values for other hydraulic fluids, please contact us

Rate of pressure change RA max

 

HD-A2FO Axial Piston Fixed Pump Ordering Code .png
HD-A2FO Axial Piston Fixed Pump Ordering Code .png
HD-A2FO Axial Piston Fixed Pump Ordering Code .png
HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg

Ports

PortsPort forStandard 6)Size 3)P Max [bar] 5)State 8)
B(A)Working portDIN 3852M18 x 1.5 deep 12350O
SSuction portDIN 3852M22 x 1.5 deep 1430O
T 1, T 2Drain portDIN 3852M10 x 1 deep 83X/O 7)

Note

1) To shaft colla 5) Momentary pressure spikes may occur depending on the application.

2) Center bore according to DIN 332 (thread according to DIN 13) Keep this in mind when selecting measuring devices and fittings.

3) For the maximum tightening torques the general instructions must be observed.

4) Thread according to DIN 3852, maximum tightening torque 30 Nm

5) Momentary pressure spikes may occur depending on the application.

6) The spot face can be deeper than specified in the appropriate standard

7) Depending on the installation position, T1 or T2 must be connected

8) O = Must be connected (plugged on delivery) X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump

Port

PortsPort forStandard4)Size 2)P Max [bar] 3)State 7)
B(A)Working portDIN 3852M22 x 1.5 deep 14350O
SSuction portDIN 3852M33 x 2 deep 1830O
T 1, T 2Drain portDIN 3852M12 x 1.5 deep 123X/O 6)
RAir bieedDIN 3852M8 x 1 deep 83X

 

Note

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

2) For the maximum tightening torques the general instructions must be observed.

3) Momentary pressure spikes may occur depending on the application.

4) The spot face can be deeper than specified in the appropriate standard

 6) Depending on the installation position, T1 or T2 must be connected

Keep this in mind when selecting measuring devices and fittings.

7) O = Must be connected (plugged on delivery) X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg


 

PortsPort forStandardSize 2)P Max [bar] 3)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1/2”

M8 x 1.25 deep 15

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

3/4”

M10 x 1.5 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M16 x 1.5 deep 123O/X 6)
RAir bieedDIN 3852 4)M10 x 1 deep 123X

 

Note

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

2) For the maximum tightening torques the general instructions must be observed .

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
PortsPort forStandardSize 2)P Max [bar] 3)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

3/4”

M10 x 1.5 deep 17

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

1”

M10 x 1.5 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M18 x 1.5 deep 123O/X 6)
RAir bieedDIN 3852 4)M12 x 1.5 deep 123X

 

Note

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

2) For the maximum tightening torques the general instructions must be observed .

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

 

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg

 

PortsPort forStandardSize 2)P Max [bar] 3)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

3/4”

M10 x 1.5 deep 17

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

1”

M10 x 1.5 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M18 x 1.5 deep 123O/X 6)
RAir bieedDIN 3852 4)M12 x 1.5 deep 123X

Note

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

2) For the maximum tightening torques the general instructions must be observed .

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg


 

PortsPort forStandardSize 2)P Max [bar] 3)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

3/4”

M10 x 1.5 deep 17

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

1”

M10 x 1.5 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M18 x 1.5 deep 123O/X 6)
RAir bieedDIN 3852 4)M12 x 1.5 deep 123X

 

Note

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

2) For the maximum tightening torques the general instructions must be observed .

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
PortsPort forStandardSize 2)P Max [bar] 3)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1”

M12 x 1.5 deep 17

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

1- 1/4”

M10 x 1.5 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M18 x 1.5 deep 123O/X 6)
RAir bieedDIN 3852 4)M12 x 1.5 deep 123X

Note

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

2)For the maximum tightening torques the general instructions must be observed

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
PortsPort forStandardSize 2)P Max [bar] 3)State 7)

B(A)

Size 107

Working port

Fastening thread

SAE J518 5)

DIN13

1”

M12 x 1.75 deep 17

450O

B(A)

Size 125

Working port

Fastening thread

SAE J518 5)

DIN13

1- 1/4”

M14 x 2 deep 19

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

1- 1/2”

M12 x 1.75 deep 20

30O
T 1, T 2Drain portDIN 3852 4)M18 x 1.5 deep 123O/X 6)
RAir bieedDIN 3852 4)M14 x 1.5 deep 123X

Note

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

2) For the maximum tightening torques the general instructions must be observed .

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
PortsPort forStandardSize 2)P Max [bar] 3)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1- 1/4”

M14 x 2 deep 19

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

1- 1/2”

M12 x 1.75 deep 20

30O
T 1, T 2Drain portDIN 3852 4)M22 x 1.5 deep 143O/X 6)
RAir bieedDIN 3852 4)M14 x 1.5 deep 123X

Note

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

2) For the maximum tightening torques the general instructions must be observed .

3) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg
PortsPort forStandardSize 3)P Max [bar] 1)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1- 1/4”

M14 x 2 deep 19

450O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

3- 1/2”

M16 x 2 deep 24

30O
T 1, T 2Drain portDIN 3852 4)M22 x 1.5 deep 143O/X 6)
RAir bieedDIN 3852 4)M14 x 1.5 deep 123X

Note

1) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

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

3) For the maximum tightening torques the general instructions must be observed .

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

 

HD-A2FO Axial Piston Fixed Pump  .jpg

 

PortsPort forStandardSize 3)P Max [bar] 1)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1- 1/4”

M14 x 2 deep 19

400O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

2- 1/2”

M12 x 1.75 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M22 x 1.5 deep 143X/O 6)
UAir bieedDIN 3852 4)M14 x 1.5 deep 123X

Note

1) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

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

3) For the maximum tightening torques the general instructions must be observed .

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

HD-A2FO Axial Piston Fixed Pump .jpg

 

PortsPort forStandardSize 3)P Max [bar] 1)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1- 1/2”

M16 x 2 deep 21

400O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

2- 1/2”

M12 x 1.75 deep 17

30O
T 1, T 2Drain portDIN 3852 4)M33 x 2 deep 183O/X 6)
UBearing flushing portDIN 3852 4)M14 x 1.5 deep 123X
M A, MBMeasuring workting pressureDIN 3852 4)M14 x 1.5 deep 12400X
M SMeasuring suction pressureDIN 3852 4)M14 x 1.5 deep 1230X

Note

1) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

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

3) For the maximum tightening torques the general instructions must be observed .

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)

 

HD-A2FO Axial Piston Fixed Pump Ordering Code .jpg


 

PortsPort forStandardSize 3)P Max [bar] 1)State 7)
B(A)

Working port

Fastening thread

SAE J518 5)

DIN13

1- 1/2”

M16 x 2 deep 21

400O
S

Suction port

Fastening thread

SAE J518 5)

DIN13

3”

M16 x 2 deep 24

30O
T 1, T 2Drain portDIN 3852 4)M33 x 2 deep 183O/X 6)
UBearing flushing portDIN 3852 4)M18 x 1.5 deep 123X
M A, M BMeasuring workting pressureDIN 3852 4)M14 x 1.5 deep 12400X
M SMeasuring suction pressureDIN 3852 4)M14 x 1.5 deep 1230X

 

Note

1) Momentary pressure spikes may occur depending on the application. Keep this in mind when selecting measuring devices and fittings.

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

3) For the maximum tightening torques the general instructions must be observed .

4) The spot face can be deeper than specified in the appropriate standard

5) Only dimensions according to SAE J518, metric fastening thread is a deviation from standard.

6) Depending on the installation position, T1 or T2 must be connected

7) O = Must be connected (plugged on delivery)     X = plugged (in normal operation)


 

HD-A2FO Axial Piston Fixed Pump Installation instructions

16.jpg

 

Technical Information

Hydraulic fluid

Before starting project planning, please refer to our data sheets mineral oil and environmentally acceptable hydraulic fluids for detailed information regarding the choice of hydraulic fluid and application conditions.

When using environmentally acceptable hydraulic fluids, the limitations regarding technical data and seals must be observed.

Please contact us. When ordering, indicate the hydraulic fluid that is to be used.

Notes on the choice of hydraulic fluid

In order to select the correct hydraulic fluid, it is necessary to know the operating temperature in the reservoir (open circuit) in relation to the ambient temperature.

The hydraulic fluid should be selected so that within the operating temperature range, the viscosity lies within the optimum range (nopt), see shaded section of the selection diagram. We recommend to select the higher viscosity grade in each case.

Example: at an ambient temperature of X ℃ the operating temperature is 60℃. In the optimum operating viscosity range (Vopt; shaded area) this corresponds to viscosity grades VG 46 resp. VG 68; VG 68 should be selected.

Important

The case drain temperature is influenced by pressure and input speed and is always higher than the reservoir temperature.

However, at no point in the component may the temperature exceed 90℃. The temperature difference specified on the left is to be taken into account when determining the viscosity in the bearing

If the above conditions cannot be met, due to extreme operating parameters please contact us.

Filtration of the hydraulic fluid

The finer the filtration the better the cleanliness level of the hydraulic fluid and the longer the service life of the axial piston unit.

In order to guarantee the functional reliability of the axial piston unit it is necessary to carry out a gravimetric evaluation of the hydraulic fluid to determine the particle contamination and the cleanliness level according to ISO 4406.

A cleanliness level of at least 20/18/15 must be maintained.

At very high hydraulic fluid temperatures (90℃ to maximum 115℃), a cleanliness level of at least 19/17/14 according to ISO 4406 is necessary.

If the above cleanliness levels cannot be maintained, contact us.


 

Viscosity and temperature of hydraulic fluids


 

 ViscosityShaft sealTemperature 3)Comment
Cold startVmax  ≤1600 mm2/s

NBR 2)

FKM

θSt  ≥ -40℃

θSt  ≥ -25℃

t ≤3 min, without load (P ≤ 50 bar) n≤1000 rpm      Permissible temperature difference between axial piston unit and hydraulic fluid in the system maximum 25 K
Warm-up phaseV = 1600~400 mm2/s  t ≤15 min,P ≤0.7*P nom and n ≤ 0.5*n nom

Continuous

operation

V = 400~10 mm2/s1)

NBR 2)

FKM

θ= +85℃

T = +110℃

measured at port L, L1
V = 36~16 mm2/s  Range of optimum operating viscosity and efciency

Short-term

operation

V = 10~7 mm2/s

NBR 2)

FKM

θ = +85℃

θ = +110℃

t ≤3 min,P ≤0.3*P nom   measured at port L, L1


 

1)Corresponds e.g. for VG 46 to a temperature range of +4 °C to +85 °C (see selection diagram)   

 2)Version EA10VSO...-P (if operating with HFA, HFB and HFC hydraulic fluids)

3)If the temperature at extreme operating parameters cannot be adhered to, please contact us

 

Selection diagram

HD-A2FO Axial Piston Fixed Pump .jpg

General instructions

 The pump HD-A2FO is designed to be used in open circuits. The motor HD-A2FM/E is designed to be used in open and closedcircuits.

 The project planning, installation and commissioning of the axial piston unit requires the involvement of qualified personnel.

 Before using the axial piston unit, please read the corresponding instruction manual completely and thoroughly.

 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).

 Depending on the operating conditions of the axial piston unit (operating pressure, fluid temperature), the characteristic may shift.

Service line ports

The ports and fastening threads are designed for the specified maximum pressure.

The machine or system manufacturer must ensure that the connecting elements and lines correspond to the specified application conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors.

The service line ports and function ports can only be used to accommodate hydraulic lines.

The data and notes contained herein must be adhered to.

The product is not approved as a component for the safety concept of a general machine according to ISO 13849.

The following tightening torques apply

Fittings

Observe the manufacturer's instructions regarding tightening torques of the fittings used

Mounting bolts

For mounting bolts with metric ISO thread according to DIN 13 or with thread according to ASME B1.1, we recommend checking the tightening torque in individual cases in accordance with VDI 2230.

Female threads in the axial piston unit

The maximum permissible tightening torques MG max are maximum values for the female threads and must not be exceeded. For values, see the following table.

Threaded plugs

For the metallic threaded plugs supplied with the axial piston unit, the required tightening torques of threaded plugs MV apply. For values, see the following table.

Ports

Maximum permissible tightening torque 

of the female threads M Gmax

Required tightening torque of the 

threaded plugs Mv1)

hexagon socket in 

the threaded plugs WAF

StandardSize of thread
DIN 3852M8 x 110 Nm7 Nm3 mm
M10 x 130 Nm12 Nm5 mm
M12 x 1.550 Nm25 Nm 2)6 mm
M14 x 1.580 Nm35 Nm6 mm
M16 x 1.5100 Nm50 Nm8 mm
M18 x 1.5140 Nm60 Nm8 mm
M22 x 1.5210 Nm80 Nm10 mm
M26 x 1.5230 Nm120 Nm12 mm
M27 x 2330 Nm135 Nm12 mm
M33 x 2540 Nm225 Nm17 mm
M42 x 2720 Nm360 Nm22 mm
DIN ISO 228G1/4”40 Nm--

Note

1) The tightening torques apply for screws in the "dry" state as received on delivery and in the "lightly oiled" state for installation.

2) In the "lightly oiled" state, the MV is reduced to 10 Nm for M10 x 1 and 17 Nm for M12 x 1.5.

 

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