yuken Čr s.r.o. - a3h series high pressure variable … · 2016-12-13 · 120 a3h series high...

115A3H Series High Pressure Variable Displacement Piston Pumps

Constant Power (Torque) Control TypePressure Compensator Type Load Sensing Type

1 0 0

M

O

Graphic Displacementcm3/revPump Type

Single Pump★

A3H

Ser

ies H

igh

Pres

sure

V

aria

ble

Dis

plac

emen

t Pis

ton

Pum

ps

Graphic Symbol

MaximumOperatingPressure

MPa

Page

35 118

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

1 2 5 0 2 5 100 200 300

★ Four control types are available such as pressure compensator type. Refer to page 119.

■ “A3H” Series High Pressure Variable High Pressure Displacement Piston Pumps

A3H Series High PressureVariable Displacement Piston Pumps

116 A3H Series High Pressure Variable Displacement Piston Pumps

Hydraulic Fluids

Hydraulic Fluids Control of ContaminationUse petroleum base oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG-32 or 46.The recommended viscosity range is from 20 to 400 mm2/s and temperature range is from 0 to 60 °C, both of which have to be satisfied for the use of the above hydraulic oils.

Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit. Please main-tain the degree of contamination within NAS Grade 10.The suction port must be equipped with at least a 100 μm (150 mesh) reservoir type filter and the return line must have a line filter of under 10 μm.

Instructions

Mounting Drain PipingWhen installing the pump the filling port should be positioned upwards.

Alignment of ShaftEmploy a flexible coupling whenever possible, and avoid any stress from bending or thrust.Maximum permissible misalignment is less than 0.1 mm TIR and maximum permissible misangular is less than 0.2°.

Suction PressurePermissible suction pressure at suction port of the pump is between -16.7 and +50 kPa. In case of the speed is over 1800 r/min, adjust the pressure 0 to +50 kPa.For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used.Make sure that the height of the pump suction port is whithin one metre from the oil level in the reservoir.

Hints on PipingWhen using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise.Whenever there is fear of excessive load, please use rubber hoses.

Suction PipingIn case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.

Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa and surge pressure of less than 0.5 MPa.Length of piping should be less than 1 m, and the pipe end should be submerged in oil.

[Recommended Drain Piping Size]

Model Volume cm3

[Volume of Pre-fill Oil Required]

Safety ValveWhen delivery line is blocked suddenly, surge pressure is occurred so a safety valve should be set in the circuit to eliminate any damage on equipment and piping.

Bleeding AirIt may be necessary to bleed air from pump case and outlet line to remove causes of vibration.

StartingBefore first staring, fill pump case with clean operating oil via the fill port.In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the tank or the actuator moves in a free load.

A3H16 400A3H37 700A3H56 900A3H71 1300

A3H100 1700A3H145 2400A3H180 3200

Model Fitting Size

1/2

Inside Dia. of Pipe

A3H16A3H37

12 mm or more

3/4A3H56

|A3H180

19 mm or more

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A3H Series High Pressure Variable Displacement Piston Pumps

Setting Discharge Pressure and DeliveryAt the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure.Adjust the preset delivery and pressure to meet your system requirements.

Turning the adjustment screw clockwise, increases pressure.

Model Numbers Adjustment Volume MPa

5.5

6.3

5.7

A3H16/A3H37/A3H56-01

A3H71/A3H100/A3H145-01

A3H180-01

Adjustment of Discharge Pressure

Volume adjusted by each full turn of the pressureadjustment screw

Turning the flow adjustment screw clockwise, decreases delivery.

Model Numbers

1.4

3.3

4.2

4.9

6.2

9.4

10.3

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

Adjustable volumrewith each full turn of the adjustment

screw 3 cm /rev

Minimum adjustment flow3 cm /rev

8

16

35

45

63

95

125

Adjustment of Delivery

The minimum adjustable flow and adjustable volume ofeach full turn of the delivery adjustment screw

Flow Adjustment Screw Protrusion Length "L" vs. Geometric Displacement (reference)

LCover

Flow Adj. Screw

Lock Nut

Retainer

50

20

40

60

80

100

120

140

160

180

200

10 15 20

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

Geo

met

ric D

ispl

acem

ent

cm

3 /rev

Adjustment Screw Protrusion Length "L" mm

118 A3H Series High Pressure Variable Displacement Piston Pumps

"A3H37" type performance charateristics

"14"Load Sensing Type

"55"Simple Two-Pressure

Two-Flow Control Type

erusserP erusserP

Out

put F

low

Out

put F

low

"09"Constant Power Control Type

erusserP

Out

put F

low

"01"Pressure Compensator Type

erusserP

Out

put F

low

DR

P

S

0M

P

PP

DRS

0M

0M

P

S DR

LPP

M0

60

40

20

0

N=1800 r/min

0

40

20

Pressure MPa 0

100

80

60

5 10 15 20 25 30 35

Inpu

t Pow

er

kW

Out

put F

low

L/

min

Effic

ienc

y %

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

OUT

IN

Flow Adj. Screw

Spool Pressure Compensator ValvePressure Adj. Screw

Control PistonDrain Port

Pivot

Shaft

Cradle

Slipper Retainer

Spring Spring Piston Ass'y

Cylinder Block

Port Plate


■ Control Type ■ Features● High performance at maximum pressure

35 MPaVolumetric efficiency is over 95% and overall efficiency is more than 90% at 1800 r/min.

● Compact sizeA3H series are compact in size because output / mass ratio is large.

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■ Control Type

Control Type Graphic Symbols Performance Characteristics Explanation Page

"01"Pressure Compensator Type

When the system pressure increases and comes close to the preset cut-off pressure, the pump flow decreases automatically while maintaining the set pressure as it is.

120

"09"Constant Power (Torque) Control Type

• This type of control can control the pump input power according to the motor output.

• When the system pressure increases, the pump swash plate tilt angle (output flow) decreases, in correspondence to predetermined shaft input values.

• This type of control can enable one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow). Therefore, the motor capacity can be reduced.

139


• This is an energy-saving type control which maintains the pump flow and load pressure at the absolute minimum necessary level to operate the actuator.

• This type of control automatically regulates the output flow so that the inlet-outlet differential pressure of the flow control valve at the output side is constant. To do so, the load pressure must be introduced to the load sensing port "L" of the pump through the external piping.

• This type of control provides the remote control of the full cut-off pressure by connecting a remote control relief valve to the pilot port "PP".

145

"55"Simple Two-Pressure Two-Flow Control Type

• This type of control enables one pump to act as two pumps (low-pressure and large-flow/high-pressure and small-flow-rate). Therefore, the motor capacity can be reduced.

• When the system pressure increases near the preset “PL” pressure due to the load increase, the pump flow automatically decreases to “QL.”

• This type of control is suitable for an application like the press, where switching from rapid advance to feed is required just when the press (pressurizing) starts.

• The PH pressure can be remote-controlled with a separately located relief valve. With this type of control, it is easy to change the applied pressure setting when materials or shapes of the press are changed.

151

★A flow control valve is not included with the pump. Install the valve separately.

■ Availability of Control TypeMark "○" in the table below refers to standard model.

Model NumbersGeometric

Displacement cm3/rev

"01"Pressure Compensator

Type

"09"Constant Power

(Torque) Control Type


"55"Simple Two-Pressure

Two-Flow Control Type

A3H 16 16.3 ○ ○ ○

A3H 37 37.1 ○ ○ ○ ○

A3H 56 56.3 ○ ○ ○ ○

A3H 71 70.7 ○ ○ ○ ○

A3H100 100.5 ○ ○ ○ ○

A3H145 145.2 ○ ○ ○ ○

A3H180 180.7 ○ ○ ○ ○

QH

QL

Pressure

Out

put F

low

QH

QL

PL PH

Pressure

Out

put F

low

Pressure

Out

put F

low

M

O

Pressure

Out

put F

low

120 A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

Graphic Symbol

★1. Consult Yuken when pump is used over rated pressure because there is a restriction on operating condition.★2. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.★3. The table above shows specifications for using petroleum based oils.

Pumps (customized design) for special fluids are also available. Their operating pressure and maximum shaft speed however differ from the values in the table above depending on the fluid type.Range of operating temperature and viscosities may differ from those of petroleum based oils due to their characteristics.

★1. As the specific gravities of water-glycol fluids and phosphate ester type fluids are higher than one, an overhead reservoir is required when pumps are operated at 1500 r/min or more.

■ Specifications


Displacementcm3/rev

Minimum Adj. Flow cm3/rev

Operating PressureMPa

Shaft Speed Ranger/min

Approx. Masskg

Rated★1 Intermittent Max.★2 Min. Flange Mtg. Foot Mtg.

A3H 16-＊R01KK-10 16.3 8.0

28 35

3600 600 14.5 23.4

A3H 37-＊R01KK-10 37.1 16.0 2700 600 19.5 27.0

A3H 56-＊R01KK-10 56.3 35.0 2500 600 25.7 33.2

A3H 71-＊R01KK-10 70.7 45.0 2300 600 35.0 42.5

A3H100-＊R01KK-10 100.5 63.0 2100 600 44.9 72.9

A3H145-＊R01KK-10 145.2 95.0 1800 600 60.0 88.0

A3H180-＊R01KK-10 180.7 125.0 1800 600 70.4 98.4

● Specifications and Design numbers for Special Fluids

Type of FluidsOperating Pressure

MPa

Allowable MaximumShaft Speed

r/min

TemperatureRange

°C

ViscosityRange

mm2/s

Design Numbers forSpecial Fluid

Rated Intermittent Rated Max.

Water-Glycols 21 21 1200 (1800)★1 0 - 5020 - 200

1030

Phosphate Ester Type 21 21 1200 (1800)★1 0 - 60 1006

Polyol Ester Type 21 25 1200 1800 0 - 60 20 - 200 10450

A3H Series High Pressure Variable Displacement Piston Pumps, Pressure Compensator Type

M

O

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A3H Series High Pressure Variable Displacement Piston Pumps Pressure Compensator Type

■ Model Number Designation

A3H16 -F R 01 K K -10

Series Number Mounting Direction of Rotation Control Type Pres. Adj. Range

MPa Shaft Extension Design Number

A3H16(16.3 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.

(Viewed from)Shaft End

R: Clockwise (Normal)

01: Pressure Compensator Type

K: 5 - 35 K: Keyed Shaft

10

A3H37(37.1 cm3/rev) 10

A3H56(56.3 cm3/rev) 10

A3H71(70.7 cm3/rev) 10

A3H100(100.5 cm3/rev) 10

A3H145(145.2 cm3/rev) 10

A3H180(180.7 cm3/rev) 10

■ Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.

Pump Model Numbers Name of Port Threaded Connection Socket Welding Butt Welding

A3H16-＊R01Suction F5-08-A-10 F5-08-B-10 F5-08-C-10

Discharge F6-06-A-M-10★1 F6-06-B-M-10 ――







A3H100-＊R01A3H145-＊R01

Suction F5-20-A-10 F5-20-B-10 F5-20-C-10


A3H180-＊R01Suction F5-24-A-10 F5-24-B-10 ――


★1. These flanges are with tapered threaded port, maximum pressure is restricted at 31 MPa.● Details of the pipe flange kits are shown on page 262 to 264.


■ The Circuit and Conditions

● Circuit

■ Result of Measurement

● ConditionsDrive Speed : 1500 r/minHydraulic Fluid : ISO VG32 OilOil Temperature : 40°C [Viscosity 32 mm2/s]

MO

SOL High Pressure Rubber Hose

t2t1

OFF

Time

SOLOFF ON

2 MPa 2 MPa

PS

28 MPa

Pressure

● Size of High Pressure Rubber House

Model High Pressure Rubber Housea

A3H16 3/4B × 1500 mm

A3H37/56/71 3/4B × 2000 mm

A3H100/145 1-1/4B × 2000 mm

A3H180 1-1/4B × 2500 mm

ModelResponse Time ms PS

Overshoot Pres.MPat1 t2

A3H 16 30 140 2.5

A3H 37 40 80 3.5

A3H 56 50 90 7.5

A3H 71 50 140 10.0

A3H100 70 170 11.0

A3H145 70 180 12.5

A3H180 70 220 12.0

Response Characteristics Change in Accordance with Circuits and Operating Conditions.

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30

20

10

0 0

20

10

N＝1500 r/min

0

100

80

60

5 10 15 20 25 30 35

30

20

10

0

N＝1800 r/min

0

20

10

0

100

80

60

5 10 15 20 25 30 35 0

100

80

60 60

40

20

05 10 15 20 25 30 35

N＝3600 r/min

0

40

20

20

15

10

5

010 15 20 25 30

N＝1500 r/min N＝1800 r/min20

15

10

5

010 15 20 25 30

40

35

30

25

20

15

10

5

020 30 40 50 60

N＝3600 r/min

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Output Flow L/min Output Flow L/min Output Flow L/min

35 MPa30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa

VolumetricEfficiency



Overall Efficiency Overall Efficiency Overall Efficiency

Output Flow Output Flow Output Flow

Input PowerInput Power

Input Power

Pressure MPa Pressure MPa

Out

put F

low

L/min

Inpu

t Pow

er kW

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Effic

ienc

y %

Full Cut-off

Full Flow

Full

Cut

-off

Pow

er kW

Dra

in L/min

Full Cut-off Pressure MPa Pressure MPa

Pressure MPa Pressure MPa Pressure MPa

Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Full FlowFull FlowFull Flow

Full Cut-offFull Cut-offFull Cut-off

■ Performance Characteristic Curve

■ Input Power

■ Full Cut-off Power ■ Drain

■ Noise Level [One metre horizontally away from pump head cover]

Typical Performance Characteristics of Type A3H16 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

Note) The dotted line in the graph indicates less than minimum adjustable flow.


0

100

80

60 60

40

20

05 10 15 20 25 30 35

N＝1500 r/min

0

40

20

60

40

20

0

N＝1800 r/min

0

40

20

0

100

80

60

5 10 15 20 25 30 35

120

80

100

40

60

20

0 0

80

40

N＝2700 r/min

0

100

80

60

5 10 15 20 25 30 35

35

30

25

20

15

10

5

025 30 35 40 45 50 55 6020

60

50

40

30

20

10

030 40 50 70 806020

6065

50

40

30

20

10

030 40 50 60 70 80 90 100

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

N＝1500 r/min

35 MPa30 MPa28 MPa25 MPa20 MPa

15 MPa

10 MPa

5 MPa

N＝1800 r/min 35 MPa

20 MPa

15 MPa

10 MPa

5 MPa

N＝2700 r/min

30 MPa28 MPa25 MPa

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa





Output Flow

Output FlowOutput Flow


Input Power


Out

put F

low

L/min

Inpu

t Pow

er kW

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Effic

ienc

y %

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Output Flow L/min Output Flow L/minOutput Flow L/min

10

8

6

4

2

0 5 10 15 20 25 30 35

2700 r/min

1800 r/min1500 r/min

10

8

6

4

2

0 5 10 15 20 25 30 35

2700 r/min

2700 r/min



N＝1500 r/min80

70

60

500 5 10 15 20 25 30 35

N＝1800 r/min80

70

60

500 5 10 15 20 25 30 35

N＝2500 r/min80

70

60

500 5 10 15 20 25 30 35

Full Cut-off

Full Flow

Full

Cut

-off

Pow

er kW

Dra

in L/min



Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)




■ Input Power





125

PISTON PUMPS

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60

80

100

120

40

200

N＝1500 r/min

0

100

80

60

5 10 15 20 25 30 350

80

40

0

100

80

60

60

80

100

120

40

200

5 10 15 20 25 30 350

80

40

N＝1800 r/min

0

100

80

60

60

80

100

120

140

40

200

5 10 15 20 25 30 350

80

40

120

N＝2500 r/min

60

70

50

40

30

20

10

040 50 60 70 80 90 100 110

60

70

50

40

30

20

10

040 50 60 70 80 90 100 110

0

10

20

30

40

50

60

70

80

90

70 80 90 100 110 120 130 140

N＝1500 r/min

35 MPa30 MPa28 MPa25 MPa20 MPa15 MPa10 MPa5 MPa

N＝1800 r/min

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa

25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

N＝2500 r/min

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa


Volumetric Efficiency Volumetric EfficiencyVolumetric Efficiency


Output Flow


Input Power


Out

put F

low

L/min

Inpu

t Pow

er kW

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Effic

ienc

y %

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW


80

90

70

60

500 5 10 15 20 25 30 35

N＝1500 r/min

80

90

70

60

500 5 10 15 20 25 30 35

N＝1800 r/min

80

90

70

60

500 5 10 15 20 25 30 35

Full Cut-off

Full Flow

Full

Cut

-off

Pow

er kW

Dra

in L/min



Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)



N＝2500 r/min


■ Input Power






90

100

110

80

N＝1500 r/min

0

100

80

60

5 10 15 20 25 30 350

80

40

0

100

80

60

90

100

110

120

130

80

5 10 15 20 25 30 350

80

40

N＝1800 r/min

130

140

150

160

170

120

0

100

40

80

N＝2300 r/min

0

100

80

60

5 10 15 20 25 30 35

N＝1500 r/min

70

80

50

60

30

40

10

20

050 70 90 110 130 150

70

80

50

60

30

40

10

20

050 70 90 110 130 150

N＝1800 r/min

80

100

120

60

40

20

060 80 100 120 140 160

N＝2300 r/min

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa

25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa

20 MPa

25 MPa

15 MPa

10 MPa

5 MPa

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa





Output Flow


Input Power



Out

put F

low

L/min

Inpu

t Pow

er kW

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Effic

ienc

y %

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW


16

8

10

12

14

6

4

2

0 5 10 15 20 25 30 35

2300 r/min

1800 r/min1500 r/min 8

10

12

14

6

4

2

0 5 10 15 20 25 30 35

2300 r/min

2300 r/min

1800 r/min

1800 r/min

1500 r/min

1500 r/min

80

90

70

60

500 5 10 15 20 25 30 35

N＝1500 r/min

80

90

70

60

500 5 10 15 20 25 30 35

N＝1800 r/min

80

90

70

60

500 5 10 15 20 25 30 35

N＝2300 r/min

Full Cut-o

ff

Full Flow

Full

Cut

-off

Pow

er kW

Dra

in L/min



Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Full FlowFull Flow

Full Flow



■ Input Power





127

PISTON PUMPS

A3

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0

100

80

60

130

140

150

160

120

5 10 15 20 25 30 350

100

40

80

N＝1500 r/min

150

160

170

180

190

140

N＝1800 r/min

0

100

80

60

5 10 15 20 25 30 350

120

40

80

0

100

80

60

180

190

200

210

220

170

5 10 15 20 25 30 350

150

50

100

N＝2100 r/min

60

80

100

120

40

20

080 100 120 140 160 180 200

60

80

100

120

40

20

080 100 120 140 160 180 200

0

20

40

60

80

100

120

140

120100 140 160 180 200 220

N＝1500 r/min

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

N＝1800 r/min

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

N＝2100 r/min

35 MPa

30 MPa28 MPa

25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa






Output Flow

Input Power

Input Power

Input Power


Out

put F

low

L/min

Inpu

t Pow

er kW

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Effic

ienc

y %

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Inpu

t Pow

er kW


80

90

70

60

500 5 10 15 20 25 30 35

N＝1500 r/min

80

90

70

60

500 5 10 15 20 25 30 35

N＝1800 r/min

80

90

70

60

500 5 10 15 20 25 30 35

N＝2100 r/min

Full Cut-off

Full Flow

Full

Cut

-off

Pow

er kW

Dra

in L/min



Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Full FlowFull Flow

Full Flow



■ Input Power






180

220

140

N＝1500 r/min100

80

60

0 5 10 15 20 25 30 350

150

50

100 200

240

280

160

N＝1800 r/min100

80

60

0 5 10 15 20 25 30 350

150

50

100

20

0

40

60

80

100

120

140

10060 140 180 220 260

N＝1500 r/min

20

0

40

60

80

100

120

140

160

180

12080 160 200 240 280

N＝1800 r/min35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa

Overall Efficiency Overall Efficiency

Output Flow

Output Flow

Input Power

Input

Power

Pressure MPa

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Output Flow L/min Output Flow L/min



0

5

10

15

20

5 10 15 20 25 30 35 0

5

10

15

20

5 10 15 20 25 30 35

90

80

70

600 5 10 15 20 25 30 35

N＝1500 r/min90

80

70

600 5 10 15 20 25 30 35

N＝1800 r/min

1800 r/min

1500 r/min

1800 r/min

1800 r/min

1500 r/min

1500 r/minFull C

ut-off

Full Flow

Full

Cut

-off

Pow

er kW

Dra

in L/min



Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Full FlowFull Flow

Full Cut-offFull Cut-off


■ Input Power





129

PISTON PUMPS

A3

H S

erie

s


0

40

80

120

160

200

50 100 150 200 250 300

N＝1500 r/min

0

40

80

120

160

210200

50 100 150 200 250 300 350

N＝1800 r/min

240

280

200

N＝1500 r/min100

80

60

0 5 10 15 20 25 30 350

80

160 260

300

340

220

N＝1800 r/min100

80

60

0 5 10 15 20 25 30 350

240

80

160

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

35 MPa

30 MPa28 MPa25 MPa

20 MPa

15 MPa

10 MPa

5 MPa

Effic

ienc

y %

Out

put F

low

L/min

Inpu

t Pow

er kW

Pressure MPa

Overall Efficiency Overall Efficiency


Input Power

Input Power

Pressure MPa

Out

put F

low

L/min

Inpu

t Pow

er kW

Effic

ienc

y %

Inpu

t Pow

er kW

Inpu

t Pow

er kW

Output Flow L/min Output Flow L/min



0

4

8

12

16

20

5 10 15 20 25 30 35 0

10

20

5 10 15 20 25 30 35

N＝1500 r/min90

80

70

600 5 10 15 20 25 30 35

90

80

70

600 5 10 15 20 25 30 35

N＝1800 r/min


1800 r/min

1800 r/min

1500 r/min

1500 r/min

Full Cut-off

Full Flow

Full

Cut

-off

Pow

er

kW

Dra

in L/min



Noi

se L

evel

dB(A)

Noi

se L

evel

dB(A)

Full FlowFull Flow

Full Cut-offFull Cut-off


■ Input Power






6.386.35

28

89.8

13.5

119

89.8

126

37

28

82109.

581

174.5

10

Flow Adj. Screw13 Hex.

Suction Port26 Dia.

Discharge Port19 Dia.

M10 Thd. 19 Deep8 Places

74.5

31.5 31.5

26.2 23.8

52.4

50.8

Position of Drain Port 10

DEC.

74.5

39

49.5Fully Extended 205.5

44

100

165

115

120 120

14 Dia. Through28 Dia. Spotface

288

22

152

9.5

4 Places

X

Filling Port(22 Hex. Head Plug Furnished)

Drain PortRc1/2 Thd.

Pres. Adj. Screw13 Hex.

INC.

41.5

1816

22.2

322

.20

Dia

.

25.0

124

.85

Dia

.10

1.60

101.

55

DIMENSIONS INMILLIMETRES

Flange Mtg. : A3H16-FR01KK

Foot Mtg. : A3H16-LR01KK

View Arrow X★ Install the pump so that the "Filling port" is at the top.

● For other dimensions, refer to “Flange Mtg.”.

131

PISTON PUMPS

A3

H S

erie

s


81

30.2

58.7

57.2

35 35

27.8

47.5

Fully Extended 223

114

61.5

40

49

189.5

12

28

12.5

90

94

150

143

114.

5

13.5

114.5

6.386.35

Positon of Dain Port 16.5

3

39.5

150

23

66.5

16 19

22

100

278

115150 115

158

DEC.

X



Suction Port32 Dia.




INC.



4 Places


82

25.4

025

.37

Dia

.

28.1

828

.00

Dia

.12

7.00

126.

95







Positon of Dain Port

114.5

13.5

143

114.

5

107

62

47.5

40

Fully Extended 223

12.546.5

20612

510

23838

69.9

27.835.7

92

57.2

13

154

28

19

7.977.94

X

3

40150

150

231916

115115

278

22

67100

DEC.Flow Adj. Screw17 Hex.


Suction Port38 Dia. M12 Thd. 22 Deep

4 Places

INC.Pres. Adj. Screw13 Hex.


89




158

4 Places

31.7

531

.70

Dia

.

35.3

235

.14

Dia

.12

7.00

126.

95






133

PISTON PUMPS

A3

H S

erie

s


X

114.5

154

114.

5

143

75

55 12.5

50

60.5

Fully Extended 264

140

14

28

229.5

114

106.5

77.8

31.8

41.5

42.9

41.5

66.7

117

9.569.53

Positaion of Drain Port

150

278

115 115

150

231916 3

22

100

53

80 158

DEC.Flow Adj. Screw17 Hex.

97




INC.


Suction Port51 Dia.



Case Drain Port5 Hex. Soc.

4 Places

13.5

19

38.1

038

.05

Dia

.

42.3

642

.18

Dia

.12

7.00

126.

95







X

95

60 12.5

210

196

161.

6

129.

5

81

63

161.611

8.5

144

249.5

17

39

Fully Extended 284.5

Position of Drain Port

11.1411.11

37

3229

210

32

3

63

108

165

398

165

140

220

198

DEC.


103

66.7

45

31.8

88.9

50.8

45

112

Suction Port63 Dia.




INC.



22 Dia. Through43 Dia. Spotface4 Places


21.5

23

44.4

544

.40 49

.39

49.2

1

Dia

. 152.

4015

2.35

Dia

.




View Arrow X

★ Install the pump so that the "Filling port" is at the top.


135

PISTON PUMPS

A3

H S

erie

s



INC.



DEC.

220

95

12.5

161.6

21.5

161.

6

200

81

63

139

129

152

(5.0

8)(5

.98)

22


74

283.5


66.7

31.8

49

88.9

50.8

49

111

12.7312.70

39

26

X

121



Suction Port63 Dia.



123 270 13

200

398

16548

3

29

32

32

123

140

37

210

212

165198


56.4

356

.25

50.8

0 Dia

.50

.75

152.

40 D

ia.

152.

35




View Arrow X




123 270 30

200

398

16565

3

29

32

32

123

140

37

210

212

165198


DEC.


X

27.5

160

148.

5

80

12.5

Fully Extended 347.5 112

36.5

5353

61.9

106.

4

79.4

117129.5

138

161.6

21.5

161.

6

200

220

39

97.5

24

309.5

50.8

050

.75

12.7312.70

Position of Drain Port81



Suction Port76 Dia.



INC.



Dia

.

56.4

356

.25 15

2.40

Dia

.15

2.35




View Arrow X



137

PISTON PUMPS

A3

H S

erie

s


Detail of Section X – X Detail of Section Y – Y Detail "Z"

■ Spear Parts List

A3H16/A3H37/A3H56-＊R01KK

30241325341412268172053372

585960628

31 54 10 42 45 11 7 9 21 39 33 43 19 29 22 4 27 23 1524850413638563

4755493544494653

5

48

40

Z

X

X

Y

Y

72 7161626569666468637367 51 4418 1615

Item Name of PartsPart Numbers

Q'ty.A3H16 A3H37 A3H56

17 Gasket 2270-PK313655-3 2271-PK-313518-3 2272-PK313433-5 1

18 Back Up Ring 1310E-PK412440-0 1

36Cylindrical Roller Bearing NUP205E ―― ――

1Tapered Roller Bearing ―― 4T-30204 4T-33008

37Needle Roller Bearing HMK2025V2 ―― ――

1Tapered Roller Bearing ―― 4T-33006 4T-32205R

38 Oil Seal TCN254511 (FKM) TCN284811 (FKM) TCN355511 (FKM) 1

40 O-Ring S65 (NBR, Hs70) S85 (NBR, Hs70) S95 (NBR, Hs70) 1

41 O-Ring SO-NA-G60 SO-NA-G60 S71 (NBR, Hs70) 1

42 O-Ring SO-NB-P14 SO-NB-P18 SO-NB-P21 1

43 O-Ring SO-NB-P14 1



68 O-Ring SO-NA-A018 1



■ Spear Parts List

A3H71/A3H100/A3H145/A3H180-＊R01KK

YY

X

X

16128142634131572 30 18 11 22 19

58

59

60

39

6

54

17

31

53

10

40 42 12 8 9 23 37 41 27 21 24 4 25 51

50

47

29

36

56

3

494555483543484452

5

46

38

33

717269 616265666468637367 432051

Detail of Section X – X Detail of Section Y – Y

Item Name of PartsPart Numbers

Q'ty.A3H71 A3H100 A3H145 A3H180

19 Gasket 2273-PK212356-0 2274-PK212368-5 2275-PK212382-6 2276-PK212301-6 1

20 Back Up Ring 1310E-PK412440-0 1

29Tapered Roller Bearing 33009JR 4T-33206 HR33011 ――

1Cylindrical Roller Bearing ―― ―― ―― 2276-PK412859-1

30Tapered Roller Bearing 32205JR 4T-30210 4T-33206 ――

1Needle Roller Bearing ―― ―― ―― 2276-PK412860-9

36 Oil Seal TCN426512 (FKM) TCN507212 (FKM) TCN557812 (FKM) TCN557812 (FKM) 1

38 O-Ring S100 (NBR, Hs70) S110 (NBR, Hs70) S125 (NBR, Hs70) S130 (NBR, Hs70) 1

39 O-Ring SO-NA-G80 SO-NA-G95 SO-NA-G95 SO-NA-G105 1

40 O-Ring SO-NB-P24 SO-NB-P26 1


42 O-Ring SO-NB-P9 SO-NB-P10A 1


68 O-Ring SO-NA-A021 1


139

PISTON PUMPS

A3

H S

erie

s

A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type

Graphic Symbol

■ Specifications


Displacementcm3/rev

MinimumAdj. Flow cm3/rev

Max.OperatingPressure

MPa


Approx. Masskg

Max.★ Min. Flange Mtg. Foot Mtg.

A3H 37-＊R09-＊＊＊K-10 37.1 16.0

35

2700 600 23.0 30.5

A3H 56-＊R09-＊＊＊K-10 56.3 35.0 2500 600 29.0 36.5

A3H 71-＊R09-＊＊＊K-10 70.7 45.0 2300 600 38.0 45.5

A3H100-＊R09-＊＊＊K-10 100.5 63.0 2100 600 48.3 76.3

A3H145-＊R09-＊＊＊K-10 145.2 95.0 1800 600 63.0 91.0

A3H180-＊R09-＊＊＊K-10 180.7 125.0 1800 600 74.2 102.2

★ The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.

A3H Series High Pressure Variable Displacement Piston Pumps, Constant Power (Torque) Control Type

OM

O M

PP

P

S DR


A3H37 -F R 09 -11 A 4 K -10

Series Number Mounting Direction of Rotation Control Type Input Power

Setting

Frequency of Power Source

Pole Number of Electric

MotorShaft Extension★2 Design

Number

A3H37(37.1 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.


R: Clockwise★1

(Normal)

09: ConstantPower(Torque)ControlType

5.5: 5.5 kW |110: 110 kW

Refer to the tableon following pagefor combination.

A: 50 Hz

B: 60 Hz

4: 4 Poles

6: 6 PolesK: Keyed Shaft

10

A3H56(56.3 cm3/rev) 10

A3H71(70.7 cm3/rev) 10

A3H100(100.5 cm3/rev) 10

A3H145(145.2 cm3/rev) 10

A3H180(180.7 cm3/rev) 10

★1. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.★2. We can also supply spline-type shaft extension. Consult Yuken for details.

140 A3H Series High Pressure Variable Displacement Piston Pumps Constant Power (Torque) Control Type

5 10 15 20 25 30 35

120

100

80

60

40

20

0

N＝1500 r/min

30 kW

22 kW18.5 kW15 kW

5 10 15 20 25 30 35

120

100

80

60

40

20

0

N＝1500 r/min

37 kW

30 kW

22 kW18.5 kW

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

● Combination of pump series and input power setting (○= available combinations)

Model NumbersInput Power Setting kW

Pole Number of Electric Motor : 4P Pole Number of Electric Motor : 6P11 15 18.5 22 30 37 45 55 75 90 110 5.5 7.5 11 15 18.5 22 30 37 45 55 75

A3H 3750 Hz ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○

A3H 5650 Hz ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○

A3H 7150 Hz ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○

A3H10050 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○

A3H14550 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

A3H18050 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○60 Hz ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

■ Pipe Flange KitsFor pipe flange, refer to form of pressure compensator type on page 121.

Typical Performance Characteristics of Control Type 09 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

● A3H37

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

5 10 15 20 25 30 35

70

60

50

40

30

20

10

0

N＝1500 r/min

18.5 kW15 kW11 kW

N＝1800 r/min

22 kW18.5 kW15 kW11 kW

5 10 15 20 25 30 35

70

60

50

40

30

20

10

0

● A3H56

141

PISTON PUMPS

A3

H S

erie

s


Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

Pressure MPa

Out

put F

low

L/

min

5 10 15 20 25 30 35

150

125

100

75

50

25

0

N＝1500 r/min

37 kW

30 kW

18.5 kW22 kW

5 10 15 20 25 30 35

200

175

150

125

100

75

50

25

0

N＝1500 r/min N＝1800 r/min

55 kW

45 kW

30 kW37 kW

22 kW

5 10 15 20 25 30 35

300

250

200

150

100

50

0

N＝1500 r/min N＝1800 r/min

75 kW

55 kW

37 kW45 kW

30 kW

5 10 15 20 25 30 35

300

350

250

200

150

100

50

0

N＝1500 r/min

90 kW75 kW

55 kW45 kW

37 kW

5 10 15 20 25 30 35

300

350

250

200

150

100

50

0

N＝1800 r/min

110 kW

90 kW75 kW

55 kW

45 kW

5 10 15 20 25 30 35

300

250

200

150

100

50

0

90 kW

75 kW

45 kW55 kW

37 kW

5 10 15 20 25 30 35

200

175

150

125

100

75

50

25

0

55 kW

45 kW30 kW

37 kW

5 10 15 20 25 30 35

150

125

100

75

50

25

0

N＝1800 r/min

45 kW

37 kW

22 kW

30 kW

● A3H71

● A3H100

● A3H145

● A3H180

Typical Performance Characteristics of Type A3H-09 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]


YUKEN

121

27.830.2

3535

57.2

58.7

154 82

94

189.5

41.8

1228

90

139

61.512.5 4947.540

13.5

143

114.5

150

Position of Drain Port 16.5114.5

6.386.35

Drain PortRc1/2 Thd. Flow Adj. Screw

17 Hex.DEC.

Fully

Ext

ende

d11

2

Fully Extended223

127.

0012

6.95

Dia

.

Input Power Setting Screw 2




Suction Port32 Dia.


1


INC.

28.1

828

.00

25.4

025

.37

Dia

.

112

3827.8

3835.7

57.2

69.9

129

89162

102

150

107

20645.5

1328

12.5 46.562

47.540

154

13.5Position of Drain Port 19

143

114.5

114.5

7.977.94

YUKEN

Fully

Ext

ende

d

Fully Extended239

127.

0012

6.95

Dia

.


Suction Port38 Dia.


Flow Adj. Screw17Hex.


DEC.

1Drain PortRc3/4 Thd.


INC.

35.3

235

.14

31.7

531

.70

Dia

.


Flange Mtg. : A3H37-FR09-＊＊＊K




● Foot Mounting TypeMounting bracket is common to that of pressure compensator model.Refer to page 131 for the dimensions of mounting bracket.


★1. Install the pump so that the "Filling Port" is at the top.★2. Do not touch the screw because it is adjusted at the time of shipment.

★1. Install the pump so that the "Filling Port" is at the top.★2. Do not touch the screw because it is adjusted at the time of shipment.

143

PISTON PUMPS

A3

H S

erie

s


114

117 175

77.8

66.7

134.5

41.541.5

31.842.9

97167.5

229.5

54.5

14

7512.5 5560.550

143

114.5

13.5Position of Drain Port 19

154114.5

9.589.53

28

YUKEN


1


2

Fully Extended264

127.

0012

6.95

Dia

. 42.3

642

.18

Dia

.38

.10

38.0

5



Suction Port51 Dia.



DEC.


INC.

Case Drain Port5 Hex. Soc.(Opposite Side)

Fully

Ext

ende

d11

3

118.5

113

179

142.5

88.9

66.7

31.850.8

4545

175.5 103

129.5

249.5

59.2

17

9512.5 608163

21.5

196

161.6

210

Position of Drain Port 23

39

161.6

YUKEN


1


2

Fully Extended284.5

11.1411.11

152.

4015

2.35

Dia

.



Suction Port63 Dia.



DEC.


INC.

Case Drain Port5 Hex. Soc.(Opposite Side)

Fully

Ext

ende

d

49.3

949

.21

Dia

.44

.45

44.4

0







★1. Install the pump so that the "Filling Port" is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.★3. Do not touch the screw because it is adjusted at the time of shipment.



3

1

2

DEC.

INC.

12.7312.70

139


283.5

21.5 81

161.

6

200

2273.5

63

161.6220

Position of Drain Port 12.5

95

74

129

187

Fully

Ext

ende

d 50.8

149

49 49

88.9

31.8

66.7

182 111

113

26

39

63 Dia.

13 Hex.

5 Hex. Soc.(Rear Side)

Case Drain Port

Rc3/4 Thd.Drain Port

Suction Port

34 Dia.

19 Hex.


Input Power Setting Screw


Pres. Adj. Screw Flow Adj. Screw

Discharge Port15

2.40

152.

3556

.43

56.2

5

Dia

.

50.8

050

.75

Dia

.

2

12.7312.70

152.

4015

2.35

56.4

356

.25

Dia

.

148.

5

309.5

97.521.5

200

161.

6

82

80

161.6220

12.5112

81

53

138

195

106.

4

61.9

15653

79.4

36.5

189 117

Fully

Ext

ende

d11

3

24


39

Position of Drain Port 27.576 Dia.

M16 Thd. 29 Deep

44 Dia.

8 PLACES

Discharge Port

Suction Port

(27 Hex. Head Plug Furnished)Filling Port

19 Hex.Flow Adj. Screw

Case Drain Port

(Rear Side)5 Hex. Soc.


13 Hex.Pres. Adj. Screw

Input Power Setting Screw

INC.

DEC.

3

1

50.8

050

.75

Dia

.









145

PISTON PUMPS

A3

H S

erie

s

A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

Graphic Symbol

■ Specifications


Displacementcm3/rev

Operating Pressure★1

MPaLoad Sensing

Pres. DifferenceΔPMPa


Approx. Masskg

Rated Intermittent Max.★3 Min. Flange Mtg. Foot Mtg.

A3H 16-＊R14K-10 16.3

28 351.5

At the time(of shipment)

3600 600 17.5 26.4

A3H 37-＊R14K-10 37.1 2700 600 22.5 30.0

A3H 56-＊R14K-10 56.3 2500 600 28.7 36.2

A3H 71-＊R14K-10 70.7 2300 600 38.0 45.5

A3H100-＊R14K-10 100.5 2100 600 47.9 75.9

A3H145-＊R14K-10 145.2 1800 600 63.0 91.0

A3H180-＊R14K-10 180.7 1800 600 73.4 101.4

★1. The operating pressure means pump discharge pressure.★2. Load pressure difference ΔP is adjustable in range of 1.0 - 3.0 MPa.★3. The maximum shaft speeds shown in the above table are at suction pressure 0 kPa.

A3H Series High Pressure Variable Displacement Piston Pumps, Load Sensing Type

★

"L""PP"

MO


A3H37 -F R 14 K -10

Series Number Mounting Direction of Rotation Control Type Shaft Extension★2 Design Number

A3H16(16.3 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.


R: Clockwise★1

(Normal)

14: Load Sensing Type K: Keyed Shaft

10

A3H37(37.1 cm3/rev) 10

A3H56(56.3 cm3/rev) 10

A3H71(70.7 cm3/rev) 10

A3H100(100.5 cm3/rev) 10

A3H145(145.2 cm3/rev) 10

A3H180(180.7 cm3/rev) 10

★1. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.★2. We can also supply spline-type shaft extension. Consult Yuken for details.

★ A flow control valve is not included with the pump.Install the valve separately.

★2

146 A3H Series High Pressure Variable Displacement Piston Pumps Load Sensing Type

30252015105 35

100

120

140

80

40

60

20

0

　P＝1.5 MPaΔN=1800 r/min

30252015105 35

10

12

14

8

4

6

2

0

2300 r/min


30252015105 35

15

20

10

5

0

1/10 Q1/8 Q1/4 Q1/2 Q2300 r/min1800 r/min1500 r/min

2300 r/min1800 r/min1500 r/min

Pressure MPa

Out

put F

low

L/

min

Full Cut-off Pressure MPa

Full

Cut

-off

Pow

er

kW

Pressure MPa

Dra

in

L/m

in

Load Sensing Pressure Difference

MAX. Q

Full Cut-off

Cut-off pressure or less

★ Ask Yuken for Performance caracteristics of other series than A3H71.

■ Pipe Flange KitsPipe flange kits are available. When ordering, specify the kit number from the table below.

Typical Performance Characteristics of Control Type A3H71 at Viscosity 32 mm2/s [ISO VG32 oils, 40°C]

Pump Model Numbers Name of PortPipe Flange Kits Number

Threaded Connection★ Socket Welding Butt Welding

A3H 16-＊R14KSuction F5-08-A-10 F5-08-B-10 F5-08-C-10

Discharge F6-06-A-M-10 F6-06-B-M-10 ――







A3H100-＊R14KA3H145-＊R14K

Suction F5-20-A-10 F5-20-B-10 F5-20-C-10


A3H180-＊R14KSuction F5-24-A-10 F5-24-B-10 ――


★ These flanges are with tapered threaded port, maximum pressure is restricted at 31 MPa.

■ Pressure vs. Output Flow ■ Full Cut-off Input Power

■ Drain

147

PISTON PUMPS

A3

H S

erie

s


137.5

Fully Extended 205.589.5

75.5

31.5

28

89.8

13.5

119

89.8

126

49.5

37

39 9.5

28

82

81

174.5

10

74.5

31.5 31.5

26.2 23.8

52.4

50.8

Load Sensing Port "L"Rc1/4 Thd.

131.5

124.5 Position of Drain Port

6.386.35

Position of Pilot Port "PP"

101.

6010

1.55

Dia

.

Pilot Port "PP"Rc1/4 Thd. (With plug set)


Suction Port26 Dia.



DEC.


Load Sensing Pres. Difference Adj. Screw13 Hex.

Pressure Adj. Screw14 Hex.

INC.

INC.Filling Port★1

(22 Hex. Head Plug Furnished)

Position of Load Sensing Port "L" 10

25.0

124

.85

22.2

322

.20

Dia

.

92 82

78

34

58.7

35 35

27.830.2

57.2

146.5

139.5

142

90

189.5

12 28

12.54947.5

40

94

114.5

13.5

114.5

143

150

61.5

★1




INC.

INC.

Fully Extended 223

6.386.35





Suction Port32 Dia.




DEC.

127.

0012

6.95

Dia

.



Position of Load Sensing Port "L" 16.5

28.1

828

.00

Dia

.25

.40

25.3

7

Flange Mtg. : A3H16-FR14K






★1. Install the pump so that the "Filling Port" is at the top.



94 89

80

36

153

57.2

38

35.7 27.838

69.9

62

102

13

206

12.546.5

47.5

40

107

114.5

13.5

114.5

143

154

28

★1




INC.

INC.




Suction Port38 Dia. Discharge Port

26 Dia.


DEC.

Fully Extended 239

161.5


7.977.94

127.

0012

6.95

Dia

.



Position of Load Sensing Port "L" 19

35.3

235

.14

Dia

.31

.75

31.7

0

★1

★2

97106.5

9143.5

41.5 41.542.9 31.8

77.8

66.7

114

159

Fully Extended 264

55

75

12.5

60.5

50

117

14

229.5

143

114.5

154

114.5

13.5

28




INC.

INC.


Pilot Port "PP"Rc1/4 Thd. (With plug set) Flow Adj. Screw

17 Hex.

Suction Port51 Dia.



DEC.

9.569.53

174

181


127.

0012

6.95

Dia

.



Position of Load Sensing Port "L"


19

42.3

642

.18

Dia

.38

.10

38.0

5








★1. Install the pump so that the “Filling Port” is at the top.★2. Please use case drain port in case of discharge the hydraulic oil in the pump casing.

149

PISTON PUMPS

A3

H S

erie

s


★1

★2

118.5

163

88.9

103112

9042.5

45 4550.8 31.8

66.7


60

95

12.5

81

63

129.5

210

161.6

21.5

196

161.6

17 39

249.5

11.1411.11


Load Sensing Pres. Difference Adj. Screw13 Hex. Pressure Adj. Screw

14 Hex.

INC.INC.




Suction Port63 Dia.



DEC.

152.

4015

2.35

Dia

.

196.5

189.5




23

49.3

949

.21

Dia

.44

.45

44.4

0



121

49

50.8

49

31.8

88.9

66.7

21.5

283.5

22

220

161.6

200

161.6

111

93.546

129

171


74

95

12.5

81

63

139 12.73

12.70

39




INC.

INC.




Suction Port63 Dia.



DEC.

152.

4015

2.35

Dia

.50.8

050

.75

Dia

.


222.5

215.5

Case Drain Port ★2

5 Hex. Soc.

Filling Port ★1




26

56.4

356

.25










117129.5

87.5

40

53 53

61.9 36.5

106.4

79.4

138

179

Fully Extended 347.5 220

161.6

21.5

161.6

200

81

112

12.5

97.5

80

148.5

24

309.5

39




INC.

INC.


Pilot Port "PP"Rc1/4 Thd. (With plug set) Flow Adj. Screw

19 Hex.

Suction Port76 Dia.



DEC.

12.7312.70

244.5


152.

40 D

ia.

152.

35

50.8

0 D

ia.

50.7

556

.43

56.2

5

Filling Port ★1




Case Drain Port ★2

5 Hex. Soc.

27.5

Flange Mtg. : A3H180-FR14K DIMENSIONS INMILLIMETRES



151

PISTON PUMPS

A3

H S

erie

s

A3H Series High Pressure Variable Displacement Piston Pumps Simple Two-Pressure Two-Flow Control Type

■ Specifications


Displacementcm3/rev

Delivery Volume Adj. Rangecm3/rev

Operating PressureMPa Shaft Speed

Ranger/min

Large Displacement

(QH)

Small Displacement

(QL)Rated Intermittent

A3H16-＊R55-KK-10 16.3 8 - 16.3 ★ - 8

25 25

600 - 3600

A3H37-＊R55-KK-10 37.1 16 - 37.1 ★ - 19 600 - 2700

A3H56-＊R55-KK-10 56.3 35 - 56.3 ★ - 30 600 - 2500

A3H71-＊R55-KK-10 70.7 45 - 70.7 ★ - 35 600 - 2300

A3H100-＊R55-KK-10 100.5 63 - 100.5 ★ - 48 600 - 2100

A3H145-＊R55-KK-10 145.2 95 - 145.2 ★ - 60 600 - 1800

A3H180-＊R55-KK-10 180.7 125 - 180.7 ★ - 90 600 - 1800

A3H Series High Pressure Variable Displacement Piston Pumps, Simple Two-Pressure Two-Flow Control Type


A3H37 -F R 55 K K -10

Series Number Mounting Direction of Rotation Control Type Pres. Adj. Range Shaft Extension Design

Number

A3H16(16.3 cm3/rev)

F: Flange Mtg.

L: Foot Mtg.


R: Clockwise (Normal)

55: Simple Two-Pressure Two-Flow Control Type

K: 5 - 25 K: Keyed Shaft

10

A3H37(37.1 cm3/rev) 10

A3H56(56.3 cm3/rev) 10

A3H71(70.7 cm3/rev) 10

A3H100(100.5 cm3/rev) 10

A3H145(145.2 cm3/rev) 10

A3H180(180.7 cm3/rev) 10

Graphic Symbol

QH

QL

Performance Characteristics

Pressure　→

Out

put F

low　→

QH

QL

PL PH

Note) ★ Pressure, PH, is the minimum required flow of the external relief valve.

■ InstructionPlease install the external relief valve since there is no full cut-off performance on this pump.

Consult Yuken when detailed such as dimensions figures is required.

yuken Čr s.r.o. - a3h series high pressure variable … · 2016-12-13 · 120 a3h series high...

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