“a3h” series high pressure variable displacement piston …“a3h” series variable...

19
PISTON PUMPS “A3H” Series Variable Displacement Piston Pumps “A3H” Series High Pressure Variable Displacement Piston Pumps Features 01 Control System for Wide Range Application: Wide range of Delivery Volume 7 models from A3H16 to A3H180 meet the wide range of delivery volume from 16.3 to 180.7 cm 3 /rev. Compact Size Because of output power Vs. mass ratio is high , A3H - Series pumps could be designed in quite small size. operating pressure. Case for A3H37 under the condition of pressure 350 Kgf/cm 2 and shaft speed 1800 r/min, the volumetric efficiency is 95% (or above) and the overall efficiency is 90% (or above). High Performance to meet 350 Kgf/cm 2 of max. Volumetric Efficiency Overall Efficiency Output Flow Input Power 0 20 40 Input Power kW Efficiency 100 80 60 60 40 0 Output Flow L/min. 20 % Pressure Kgf/cm² 0 50 100 150 200 250 300 350 N=1800 r/min. “01 ”Pressure Compensator Type “09” Constant Power Control Type “14” Load Sensing Type For these controls system, consult YUKEN for details. EIC-A-1003-0 64 Pressure Output Flow Pressure Output Flow Pressure Output Flow

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Page 1: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

PISTON PUMPS

“A3H” Series Variable Displacement Piston Pumps

“A3H” Series High Pressure Variable Displacement Piston Pumps

■ Features

01 Control System for Wide Range Application:

Wide range of Delivery Volume

7 models from A3H16 to A3H180 meet the wide range

of delivery volume from 16.3 to 180.7 cm3/rev.

Compact SizeBecause of output power Vs. mass ratio is high , A3H -

Series pumps could be designed in quite small size.

operating pressure.

Case for A3H37 under the condition of pressure

350 Kgf/cm2 and shaft speed 1800 r/min, the

volumetric efficiency is 95% (or above) and the

overall efficiency is 90% (or above).

High Performance to meet 350 Kgf/cm2

of max.

Volumetric Efficiency

Overall Efficiency

Output Flow

Input Power

0

20

40

Inpu

t P

ow

er

kW

Eff

icie

ncy

100

80

60 60

40

0Ou

tpu

t F

low L/m

in.

20

%

Pressure Kgf/cm²

0 50 100150200250 300350

N=1800 r/min.“01

”Pressure

Compensator Type

“09”

Constant Power

Control Type

“14”

Load Sensing

Type

For these controls system, consult YUKEN for details.

EIC-A-1003-0

64

Pressure

Ou

tput

Flo

w

Pressure

Ou

tput

Flo

w

Pressure

Ou

tput

Flo

w

Page 2: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

Hydraulic Fluids

■ Hydraulic Fluids.Use petroleum base oils such as anti-wear type

hydraulic oils or R & O (Rust and oxidation

inhibitor) type hydraulic oils (ISO VG 32 or 46) with

a viscosity range of 20 to 400 cSt at temperature of

0-600C both to be satisfied.

■ Control of contamination.

■ Mounting.

■ Alignment of Shaft.

■ Suction Pressure.

■ Hints on Piping.

■ Suction Piping.

■ Drain Piping.

[Volume of Pre-Fill Oil Required]

■ Recommended Drain Piping Size.

Model Number Fitting Size Inside Dia.

of Pipe

A3H16, A3H37 1/2”

(Inside dia. 12 mm or more)

12 mm

or more

A3H56, A3H71,

A3H100, A3H145,

A3H180

3/4”

(Inside dia. 16 mm or more)

19 mm

or more

■ Safety valve

■ Bleeding Air.

■ Starting.

Model

Number

Volume

cm3

A3H16 400

A3H37 700

A3H56 900

A3H71 1300

A3H100 1700

A3H145 2400

A3H180 3200

PISTON PUMPS

Much care should be taken to maintain control over

contamination of the operating oil which can

otherwise lead to breakdown and shorten the life of

the unit. Please maintain 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 type filter of under

10 µm.

When installing the pump the filling port should be

positioned upwards.

Employ a flexible coupling whenever possible, and

avoid any stress from bending or thrust.

Maximum permissible misalignment is less than

0.1mm TIR and maximum permissible misangularity

is less than 0.20.

Permissible suction pressure at suction port of the

pump is between -0.16 and +0.5 Kgf/cm2

(-127 mm

Hg~+0.5 Kgf/cm2). In case of the speedis over 1800

r/min., adjust the pressure 0 to +0.5 Kgf/cm².

For piping to the suction port, use pipes of the same

diameter as that of the specified pipe flange. Make

sure that the height of the pump suction port is

within one meter from the oil level in the reservoir.

When 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.

In 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

1 Kgf/cm2 and surge pressure of less than 5 Kgf/cm2.

Length of piping should be less than 1m, and the

pipe end should be submerged in oil.

When delivery line is blocked suddenly, surge

pressure is occurred so a relief valve should be set in

the circuit to eliminate any damage on equipment

and piping.

It may be necessary to bleed air from pump case and

outlet line to remove causes of vibration.

Before starting, first fill the pump case with clean

operating oil through 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 directly to the tank or the

actuator moves in a free load.

65

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

Instructions

Page 3: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

■ Setting Discharge Pressure and DeliveryAt the time of Dispatch, the unit has been preset to the maximum delivery and minimum discharge pressure.

Adjust the preset delivery and pressure to meet your system requirements.

Adjustment of Discharge Pressure

Turning the adjustment screw clockwise,

increases pressure.

Model Numbers Adjustment

Pressure Kgf/cm2

A3H16, A3H37, A3H56-01 55

A3H71, A3H100, A3H145-01 63

A3H180-01 57

Adjustment of Delivery

[The minimum adjustable flow and adjustable

volume of each full turn of the delivery

adjustment screw]

Model

Numbers

Adjustable volume with

each full turn of the

adjustment screw

cm3/rev.

Minimum

adjustment

flow

cm3/rev.

A3H16 1.4 8

A3H37 3.3 16

A3H56 4.2 35

A3H71 4.9 45

A3H100 6.2 63

A3H145 9.4 95

A3H180 10.3 125

PISTON PUMPS

[Pressure adjusted by each one turn

of the pressure adjustment screw]

Turning the flow adjustment screw clockwise,

decreases delivery.

Lock the screw after adjustment.

5 10 15 20

20

0

40

60

80

100

120

140

160

180

200

A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

Adj. Screw Protrusion Length (L)

Geo

met

ric

Dis

pla

cem

ent

cm³/rev.

mm

LCover

RetainerLock Nut

Flow Adj.

Screw

■ Flow Adj. Screw Protrusion length ‘L’ Vs Geometric Displacement (Reference)

66

Page 4: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

“A3H” Series Variable Displacement Piston Pumps-Single pump,

Pressure Compensator type

■ Model Number Designation

Model Number

Geometric Displacement

cm3/rev.

Min Adj. Flow

cm3/rev.

Operating Pressure

Kgf/cm2

Shaft Speed

r/min.

Approx. Mass

Kg.

Rated*1

Intermittent Max.*2

Min. Flange

Mounting

Foot

Mounting

A3H16-※R01KK-10 16.3 8.0

280 350

3600 600 14.5 23.4

A3H37-※R01KK-10 37.1 16.0 2700 600 19.5 27.0

A3H56-※R01KK-10 56.3 35.0 2500 600 25.7 33.2

A3H71-※R01KK-10 70.7 45.0 2300 600 35.0 42.5

A3H100-※R01KK-10 100.5 63.0 2100 600 44.6 72.6

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

*1 Consult YUKEN when pump is used over rated pressure because, there is a restriction on operating condition.

*2 The Max. shaft speeds shown in the above table are at suction pressure 0 Kgf/cm2.

*3 The table above shows specifications for using Petroleum based oils.

■ Specifications

M

O

PISTON PUMPS

Graphic Symbol

*1 Available to supply pump with anti-clockwise rotation. Consult YUKEN for details.

*2 We are also supplying spline-type shaft extension. Consult YUKEN for details.

67

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

A3H16 -F R 01 K K -10

Series

Number Mounting

Direction

of

Rotation

Control

Type

Pressure Adj.

Range

Kgf/cm2

Shaft∗2

Extension

Design

Number

A3H16

(16.3cm3/rev.)

F :

Flange

Mounting

L :

Foot Mounting

(Viewed from Shaft End)

R :

Clockwise∗1

(Normal)

01 :

Pressure

Compensator

Type

K:

50~350

K:

Keyed Shaft

10

A3H37

(37.1cm3/rev.)

A3H56

(56.3cm3/rev.)

A3H71

(70.7 cm3/rev.)

A3H100

(100.5cm3/rev.)

A3H145

(145.2cm3/rev.)

K:

Keyed Shaft

44.45 mm Dia

K1:

Keyed Shaft

50.8 mm Dia

A3H180

(180.7cm3/rev.)

Page 5: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ Performance Characteristics Curve

Typical Performance Characteristics of “A3H16” Oil Viscosity 32 cSt [ISO VG 32, 400C]

N=1500 r/min. N=1800 r/min. N=3600 r/min.kW

Inp

ut

Po

wer

20

15

10

5

010 15 20 25 30

Output Flow L/min.

kW

Inp

ut

Po

wer

20

15

10

0

kW

Inp

ut

Po

wer

20

15

10

0

5

5

25

30

35

40

10 15 20 25 30

Output Flow L/min.

20 30 40 50 60

Output Flow L/min.

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

250 Kgf/cm²

150 Kgf/cm²

280 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

250 Kgf/cm²

150 Kgf/cm²

280 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

250 Kgf/cm²

150 Kgf/cm²

280 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

500

60

70

80

50 100 150 200 250 300 35050

0

60

70

80

50 100 150 200 250 300 35050

0

60

70

80

50 100 150 200 250 300 350

No

ise

Lev

el

Pressure Kgf/cm²

dB(A)

No

ise

Lev

el

Pressure Kgf/cm²

dB(A)

No

ise

Lev

el

Pressure Kgf/cm²

dB(A)N=1500 r/min. N=1800 r/min. N=2500 r/min.

Full Cut-off Full Cut-off

Full Cut-off

Full Flow Full Flow

Full Flow

■ Noise Level (dB): [One metre horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

Dra

in

3600 r/min.

1800 r/min.

1500 r/min.

3600 r/min.

1800 r/min.1500 r/min.

3600 r/min1800 r/min.1500 r/min.

Full Cut-off

Full Flow

50 100 150 200 250 300 350

Full Cut-off Pressure Kgf/cm² Pressure Kgf/cm²50 100 150 200 250 300 350

0

1

2

3

4

Fu

ll C

ut-

off

Po

wer

kW 5

L/min.

0

1

2

3

4

5

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

68

Pressure Kgf/cm²

0 50 100150200250300350

Pressure Kgf/cm² Pressure Kgf/cm²

N=1500 r/min.Volumetric efficiency

Overall efficiency

Output Flow

Input Power

Input Power

0 50 100150200250300350

N=1800 r/min. N=3600 r/min.

0 50 100 150200250300350

Volumetric efficiencyVolumetric efficiency

Overall efficiency Overall efficiency

Input Power

Output Flow Output Flow

Eff

icie

ncy

100

80

60 30

20

0Outp

ut

Flo

w L/m

in.

0

10

20

Inp

ut

Po

wer

kW

10

%

Eff

icie

ncy

100

80

60 30

20

0

10

%

Eff

icie

ncy

100

80

60 60

40

0

20

%

0

10

20

Inp

ut

Po

wer

kW

0

20

40

Inp

ut

Po

wer

kW

Outp

ut

Flo

w L/m

in.

Outp

ut

Flo

w L/m

in.

Page 6: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

N=2500 r/min.N=1800 r/min.N=1500 r/min.

Nois

e L

evel

dB(A)

50

60

70

80

Nois

e L

evel

dB(A)

50

60

70

80

Nois

e L

evel

dB(A)

50

60

70

80

Pressure Kgf/cm²0 50 100 150 200 250 300 350

Pressure Kgf/cm²0 50 100 150 200 250 300 350

Pressure Kgf/cm²0 50 100 150 200 250 300 350

Full Cut-off Full Cut-off

Full Cut-off

Full Flow Full FlowFull Flow

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ Performance Characteristic Curve

Typical Performance Characteristics of “A3H37” Oil Viscosity 32 cSt [ISO VG 32, 400C]

■ Noise Level (dB): [One metre horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

N=1500 r/min. N=1800 r/min.

N=2700 r/min.

20 25 30

Output Flow L/min.35 40 45 50 55 60

kW

Inp

ut

Pow

er

35

30

25

20

15

10

5

0

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

20 30 40 50 60 70 80

kW

Inp

ut

Pow

er

60

50

40

30

20

10

030 40 50 60 70 80 90 100

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

250 Kgf/cm²

350 Kgf/cm²

kW

Inp

ut

Pow

er

60

50

40

30

20

10

0

65

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

50 100 150 200 250 300 350

Full Cut-off Pressure Kgf/cm²

0

2

4

6

8

10

Full

Cu

t-off

Pow

er

kW

0

2

4

6

8

10

Dra

in

L/min.

50 100 150 200 250 300 350

Pressure Kgf/cm²

2700 r/min

1800 r/min1500 r/min

2700 r/min.1800 r/min.1500 r/min.

2700 r/min.1800 r/min.1500 r/min.

Full Cut-off

Full Flow

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

69

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

Volumetric efficiencyN=1500 r/min. N=1800 r/min. N=2700 r/min.

Volumetric efficiency Volumetric efficiency

Overall efficiency Overall efficiency Overall efficiency

Output Flow

Output Flow

Input Power

Input Power

Input Power

Pressure Kgf/cm² Pressure Kgf/cm² Pressure Kgf/cm²

Eff

icie

ncy

100

80

60

40

20

0

60

Eff

icie

ncy

100

80

60

40

20

0Outp

ut

Flo

w L/m

in.

60

Eff

icie

ncy

100

80

60

80

200

120

60

40

100

0 Inp

ut

Po

wer

20

40

kW

0 Inp

ut

Po

wer

20

40

kW

0 Inp

ut

Po

wer

40

80

kW

80

0 50 100150200250300350 0 50 100150200250300350 0 50 100150200250300350

Output Flow

% % %

Outp

ut

Flo

w L/m

in.

Outp

ut

Flo

w L/m

in.

Page 7: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ Performance Characteristic Curve

Typical Performance Characteristics of “A3H56” Oil Viscosity 32 cSt [ISO VG 32, 400C]

■ Noise Level (dB): [One metre horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

1500, 1800 r/min.

2500 r/min.

1800 r/min.1500 r/min.

2500 r/min.

2500 r/min.

1500, 1800 r/min.

0

2

4

6

8

10

Fu

ll C

ut-

off

Po

wer

kW

0

2

4

6

8

10

50 100 150 200 250 300 350

Full Cut-off Pressure Kgf/cm²50 100 150 200 250 300 350

Pressure Kgf/cm²

Dra

in

L/min.

Full Cut-off

Full Flow

N=1500 r/min. N=1800 r/min. N=2500 r/min.

Nois

e L

evel

dB(A)

50

60

70

80

90

Nois

e L

evel

dB(A)

50

60

70

80

90

Nois

e L

evel

dB(A)

50

60

70

80

90

Pressure Kgf/cm²0 50 100 150 200 250 300 350

Pressure Kgf/cm²0 50 100 150 200 250 300 350

Pressure Kgf/cm²0 50 100 150 200 250 300 350

Full FlowFull Flow

Full Flow

Full Cut-off Full Cut-off

Full Cut-off

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

70

N=1500 r/min. N=1800 r/min. N=2500 r/min.

Volumetric efficiency Volumetric efficiency Volumetric efficiency

Overall efficiency Overall efficiency Overall efficiency

Output Flow

Output Flow

Output Flow

Input PowerInput Power

Input Power

Eff

icie

ncy

60

40

20

0

Outp

ut

Flo

wL

/min

.

60

%

80

100

120

80

100

0 Inpu

t P

ow

er

40

80

kW

Pressure Kgf/cm²

0 50 100150200250300350

Eff

icie

ncy

60

40

20

0

60

%

80

100

120

80

100

0 Inpu

t P

ow

er

40

80

kW

Pressure Kgf/cm²

0 50 100150200250 300350

Eff

icie

ncy

60

40

20

0

60

%

80

100

120

80

100

0 Inpu

t P

ow

er

40

80

kW

Pressure Kgf/cm²

0 50 100150200250300350

120

Outp

ut

Flo

wL

/min

.

Outp

ut

Flo

wL

/min

.

140

N=1500 r/min. N=1800 r/min.

N=2500 r/min.

Inp

ut

Po

wer

70

60

50

40

30

20

10

0

kW

40 50 60

Output Flow L/min.70 80 90 100 110

Inp

ut

Po

wer

70

60

50

40

30

20

10

0

kW

40 50 60

Output Flow L/min.70 80 90 100 110

Inp

ut

Po

wer

70

60

50

40

30

20

10

0

Output Flow L/min.70 80 90 100 110

kW90

80

350 Kgf/cm²

300 Kgf/cm²280 Kgf/cm²250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

350 Kgf/cm²

300 Kgf/cm²280 Kgf/cm²250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

350 Kgf/cm²

300 Kgf/cm²280 Kgf/cm²

250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

120 130 140

Page 8: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ Performance Characteristic Curve

Typical Performance Characteristics of “A3H71” Oil Viscosity 32 cSt [ISO VG 32, 400C]

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

kW

Inp

ut

Po

wer

50 70 90 110 130 150

Output Flow L/min.

kW

Inp

ut

Po

wer

50 70 90 110 130 150

Output Flow L/min.

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

350 Kgf/cm²

300 Kgf/cm²

280 Kgf/cm²

250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

60 80 100 120 140

kW

Inp

ut

Po

wer

Output Flow L/min.

N=1500 r/min. N=1800 r/min.

N=2300 r/min.

80

70

60

50

40

30

20

10

0

80

70

60

50

40

30

20

10

0 0

20

40

60

80

100

120

160

■ Noise Level (dB): [One metre horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

50 100 150 200 250 300 350

Full Cut-off Pressure Kgf/cm²

0

2

4

6

8

10

Fu

ll C

ut-

off

Po

wer

12

14

16

Pressure Kgf/cm²

L/min.

0

2

4

6

8

10

12

14

Dra

in

2300 r/min.

1800 r/min.

1500 r/min.

2300 r/min.1800 r/min.

1500 r/min.

2300 r/min.1800 r/min.1500 r/min.

kW

50 100 150 200 250 300 350

Full

Cut

-off

Full Flo

w

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

0 50 100 150 200 250 300 35050

60

70

80

90

dB(A)N=2300 r/min.

dB(A)N=1800 r/min.

dB(A)N=1500 r/min.

Full Flow

Full Cut-off

Pressure Pressure Pressure

No

ise

Lev

el

No

ise

Lev

el

No

ise

Lev

el

Full Flow

Full Cut-offFull Cut-off

Full Flow

Kgf/cm² Kgf/cm² Kgf/cm²

0 50 100 150 200 250 300 35050

60

70

80

90

0 50 100 150 200 250 300 35050

60

70

80

90

71

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

0 50 100150200250300350

N=1500 r/min. N=1800 r/min. N=2300 r/min.

Volumetric efficiency Volumetric efficiency Volumetric efficiency

Overall efficiency

Output Flow

Eff

icie

ncy

%100

80

60

110

100

90

80

0

Ou

tpu

t F

low L/m

in.

0

40

80

Eff

icie

ncy

%100

80

60

110

100

90

80

0

120

130

0

40

80

Eff

icie

ncy

%100

80

60

0

160

170

0

40

80

Inp

ut

Po

wer

kW

Pressure Kgf/cm² Pressure Kgf/cm² Pressure Kgf/cm²

120

130

140

150 100

0 50 100150200250300350 0 50 100150200250300350

Inp

ut

Po

wer

kW

Inp

ut

Po

wer

kW

Output FlowOutput Flow

Overall efficiencyOverall efficiency

Input Power

Input Power

Input P

ower

Ou

tpu

t F

low L/m

in.

Ou

tpu

t F

low L/m

in.

Page 9: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ Performance Characteristic Curve

Typical Performance Characteristics of “A3H100” Oil Viscosity 32 cSt [ISO VG 32, 400C]

■ Noise Level (dB): [One metre horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

kW

Inp

ut

Po

wer

0

20

40

60

80

100

120kW

Inp

ut

Po

wer

0

20

40

60

80

100

120

80 100 120 140 180 200160 80 100 120 140 180 200160 100 120 140 180 2001600

20

40

60

80

100

120

140kW

Inp

ut

Po

wer

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

N=1500 r/min. N=1800 r/min.

N=2100 r/min.

50 Kgf/cm²

100 Kgf/cm²

200 Kgf/cm²

280 Kgf/cm²

150 Kgf/cm²

300 Kgf/cm²

350 Kgf/cm²

250 Kgf/cm²

220

N=1500 r/min. N=1800 r/min. N=2100 r/min.

Nois

e L

evel

dB(A)

Pressure Kgf/cm²

500

60

70

80

50 100 150 200 250 300 350

90

Nois

e L

evel

dB(A)

Pressure Kgf/cm²

500

60

70

80

50 100 150 200 250 300 350

90

Nois

e L

evel

dB(A)

Pressure Kgf/cm²

500

60

70

80

50 100 150 200 250 300 350

90

Full Flow

Full Cut-off

Full FlowFull Flow

Full Cut-off Full Cut-off

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

72

N=1500 r/min. N=1800 r/min. N=2100 r/min.

Volumetric Efficiency Volumetric Efficiency Volumetric Efficiency

Overall Efficiency Overall Efficiency Overall Efficiency

Output Flow

Output Flow Output Flow

Input Power

Input P

ower

Input P

ower

Eff

icie

ncy

100

80

60

150

140

130

120

0

Eff

icie

ncy

100

80

60

170

160

150

140

0

Eff

icie

ncy

100

80

60

200

190

180

170

00

40

80

Input

Pow

er

kW

0

40

80

Input

Pow

er

kW

0

50

100

Input

Pow

er

kW

0 50 100150200250300350 0 50 100150200250300350 0 50 100150200250 300350

Pressure Kgf/cm² Pressure Kgf/cm² Pressure Kgf/cm²

160

190

180

220

210

100

120 150

Outp

ut

Flo

w L/m

in.

Outp

ut

Flo

w L/m

in.

Outp

ut

Flo

w L/m

in.

% % %

0

2

4

6

8

10

12

14

16

Fu

ll C

ut-

off

Po

wer

2100 r/min.

1800 r/min.

1500 r/min.

2100 r/min.

1800 r/min.1500 r/min.

1500,1800 r/min.2100 r/min.

50 100 150 200 250 300 3500

2

4

6

8

10

12

14

Dra

in

50 100 150 200 250 300 350

Full Cut-off Pressure Kgf/cm² Pressure Kgf/cm²

kW

L/min.

Full Cut-o

ff

Full Flow

Page 10: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

N=1500 r/min. N=1800 r/min.

No

ise

Lev

el

dB(A)

60

70

80

90

0 50 100 150 200 250 300 350

No

ise

Lev

el

dB(A)

60

70

80

90

0 50 100 150 200 250 300 350

Full Cut-off

Full Flow Full Flow

Full Cut-off

Pressure

Kgf/cm²

Pressure

Kgf/cm²

PISTON PUMPS

Typical Performance Characteristics of “A3H145” Oil Viscosity 32 cSt [ISO VG 32, 400C]

■ Performance Characteristic Curve

■ Noise Level (dB): [One metre horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

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

73

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

1800 r/min.

1500 r/min.

1800 r/min.

1800 r/min.

1500 r/min.

1500 r/min.

N=1500 r/min. N=1800 r/min.

Overall efficiency Overall efficiency

Input P

ower

Input P

ower

Volumetric efficiency Volumetric efficiency

Output Flow

Output FlowEff

icie

ncy

60

140

0

%

180

220

80

100

Eff

icie

ncy

60

%

80

100

Pressure

0 50 100150200250300350 0 50 100150200250300350

0

Inp

ut

Pow

er

kW

Inp

ut

Po

wer

kW

50

100

150

0

50

100

150

160

0

200

240

280

60 100 140Output Flow

180 220 260

300 Kgf/cm²

280 Kgf/cm²

250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

Inp

ut

Pow

er

140

120

100

80

60

40

20

0

kW

Inp

ut

Pow

er

140

120

100

80

60

40

200

kW180

160

80 120 160 200 240 280

N=1500 r/min.N=1800 r/min.

350 Kgf/cm²

300 Kgf/cm²

280 Kgf/cm²250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

350 Kgf/cm²

50 100 150 200 250 300 350

Full Cut-off Pressure

0

5

10

15

20

Full

Cu

t-o

ff P

ow

er

kW

0

5

10

15

20

Dra

in

L/min.

50 100 150 200 250 300 350

Full Cut-o

ff

Full Flow

Ou

tpu

t F

low L/m

in.

Ou

tpu

t F

low L/m

in.

Kgf/cm²

Pressure

Kgf/cm²

L/min.Output Flow

L/min.

Kgf/cm²

Pressure

Kgf/cm²

Page 11: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

Typical Performance Characteristics of “A3H180” Oil Viscosity 32 cSt [ISO VG 32, 400C]

■ Performance Characteristic Curve

■ Noise Level (dB): [One meter horizontally away from pump head cover]

■ Input Power

■ Full Cut-off Power ■ Drain

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

74

Overall efficiency Overall efficiency

Input Power

Input P

ower

Volumetric efficiency Volumetric efficiency

Output Flow

Output Flow

Eff

icie

ncy

60

200

0

%

240

280

80

100

Eff

icie

ncy

60

%

80

100

220

0

260

300

340

Pressure Kgf/cm²

0 50 100150200250300350

Pressure Kgf/cm²

0 50 100150200250300350

0 Inp

ut

Po

wer

kW

80

160

0 Inp

ut

Po

wer

kW

80

160

240

N=1500 r/min. N=1800 r/min.

Outp

ut

Flo

w L/m

in.

Outp

ut

Flo

w L/m

in.

N=1500 r/min.N=1800 r/min.

N=1500 r/min. N=1800 r/min.

300 Kgf/cm²280 Kgf/cm²250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

350 Kgf/cm² 300 Kgf/cm²

280 Kgf/cm²

250 Kgf/cm²

200 Kgf/cm²

150 Kgf/cm²

100 Kgf/cm²

50 Kgf/cm²

350 Kgf/cm²

Inp

ut

Pow

er

120

80

40

0

kW

160

200

0 50 100Output Flow L/min.

150 200 250 300 50 100Output Flow L/min.

150 200 250 300

Inp

ut

Pow

er120

80

40

0

kW

160

200210

350

1800 r/min.

1500 r/min.

1500 r/min.

1800 r/min.

1800 r/min.1500 r/min.

0

4

8

12

16

Full

Cu

t-o

ff P

ow

er

kW

50 100 150 200 250 300 350

Full Cut-off Pressure Kgf/cm²

50 100 150 200 250 300 350

Pressure Kgf/cm²

0

10

20

Dra

in

L/min.

Full Cut-off

FUll Flow

20

No

ise

Lev

el

dB(A)

60

70

80

90

Pressure Kgf/cm²

0 50 100 150 200 250 300 350

Pressure Kgf/cm²

0 50 100 150 200 250 300 350

No

ise

Lev

el

dB(A)

60

70

80

90

Full Cut-off

Full FlowFull Flow

Full Cut-off

Page 12: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

50.8

23.8

31.531.5

26.2

52.4

74.5 74.5

Discharge Port "P"

19 Dia.

M10 Thd. x 19 Deep

8 Places

Suction Port "S"

26 Dia.

Flow Adj. Screw13 Hex.

174.5

10

22.2

3

22.2

0D

ia.

25

.01

24

.85

10

1.6

0

10

1.5

5D

ia.

82

28

37

49.5

9.539

Fully Extended 205.5

10

9.5

81

Filling Port

22 Hex. Head

Plug Furnished

Dec.

Drain Port

Rc 12 Thd.

12628

89

.8

11

913.5

89.8

Pres. Adj. Screw13 Hex.

6.38

6.35

Inc.

165

100

22

41.544

152

120 120

288

16 18 1

15

14 Dia. x Thru.

28 Dia. Spotface

4 Places

View Arrow X

X

10

Position of

Drain Port

■ A3H16-FR01KK-10

■ A3H16-LR01KK-10

Flange Mounting

Foot Mounting

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

*

* Install the pump so that the “filling port” is at the top.

75

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

Page 13: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

57

.2

8281

58.7

30.2 27.8

35 35

Flow Adj.

Screw

17 Hex.

Dec.

M12 Thd. x 22 Deep

4 Places

Suction Port "S"

32 Dia.

Discharge Port "P"

24 Dia.

M10 Thd. x 18 Deep

4 Places

Drain Port

Rc 12 Thd.

189.5

12

90

114

Fully Extended 223

25

.40

25

.37

28

.18

28

.00

127

.00

126

.95

94

40

47.5

12.549

61.5

Filling Port

22 Hex. Head

Plug Furnished

Dia

.

Dia

.

150

28

114

.5

143

6.386.35

13.5

114.5

Position of

Drain PortPres. Adj. Screw

13 Hex.

INC.

X

View Arrow X

16.5

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ A3H37-FR01KK-10

■ A3H37-LR01KK-10

Flange Mounting

Foot Mounting

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

*

100

150

66.5

39.5 278

1583

23

150

16

14 Dia. x Thru.

28 Dia. Spotface

4 Places

22

19

115 115

* Install the pump so that the “filling port” is at the top.

76

Page 14: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ A3H56-FR01KK-10

■ A3H56-LR01KK-10

Flange Mounting

Foot Mounting

57.2

38 38

35.7 27.8

92 89

69

.9

Suction Port "S"

38 Dia.

M12 Thd. x 22 Deep

8 Places

Discharge Port "P"

26 Dia.

Flow Adj. Screw 17 Hex.

Dec.

154

28

14

3

114

.5

13.5

Position of

Drain Port

114.5

Pres. Adj. Screw13 Hex.

INC.

7.977.94

206

13

31

.75

31

.70

35.3

235

.14

127

.00

12

6.9

5

10

7

Dia

.

Fully Extended 239

40

47.5

12.546.5

62

Drain Port

Rc 3/4 Thd.

Filling Port

22 Hex. Head

Plug Furnished

125

10

2

Dia

.

X

View Arrow X

19

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

100

150

67

40

1916

22

278

3

23 1

50

14 Dia. x Thru.

28 Dia. Spotface

4 Places

115 115

158

*

* Install the pump so that the “filling port” is at the top.

77

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

Page 15: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

66

.7

41.5 41.5

42.9 31.8

77.8

106.5 97

M12 Thd. x 19 Deep

8 Places

Flow Adj. Screw 17 Hex.

Suction Port "S"

51 Dia.

Discharge Port "P"

34 Dia.

Dec.

229.5

14

11

41

40

Fully Extended 264

38.1

03

8.0

5

42.3

642

.18

127.0

012

6.9

5

11

7

50

60.5

12.555

75

Drain Port

Rc 3 4 Thd.

Filling Port

22 Hex. Head

Plug Furnished

Dia

.

Dia

.

28

14

3

11

4.5

13.5

154

Position of

Drain PortPres. Adj. Screw13 Hex.

INC.9.569.53

114.5

150

100 80

53

19

16

278

1583

23

150

14 Dia. x Thru.

28 Dia. Spotface

4 Places

22

X

View Arrow X

Case Drain Port5 Hex. Soc.

19

115 115

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ A3H71-FR01KK-10

■ A3H71-LR01KK-10

Flange Mounting

Foot Mounting

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

*

* Install the pump so that the “filling port” is at the top.

78

Page 16: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

31.850.8

45 45

66.7

88.9

112 103

Suction Port "S"

63 Dia.

M12 Thd. x 19 Deep

8 Places

Flow Adj. Screw 17 Hex.

Dec.

249.517

11

8.5

144

44

.45

44.4

0

49.3

9

49

.21

15

2.4

0

152.3

5

12

9.5

63

81

95

12.560

Fully Extended 284.5

Filling Port

27 Hex. Head

Plug Furnished

Drain Port

Rc 3 4 Thd.

Dia

.

Dia

.

39

196

161.6

21.5

161.6

210

Position of

Drain Port

11.1411.11

Pres. Adj. Screw13 Hex.

INC.

37

210

398

198

3

32

220

140 108

63

3229

22 Dia. x Thru.

43 Dia. Spotface

4 Places

Discharge Port "P"

34 Dia.

X

View Arrow X

Case Drain Port

5 Hex. Soc.

23

165 165

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ A3H100-FR01KK-10

■ A3H100-LR01KK-10

Flange Mounting

Foot Mounting

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

*

* Install the pump so that the “filling port” is at the top.

79

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

Page 17: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ A3H145-FR01KK-10

■ A3H145-LR01KK-10

Flange Mounting

Foot Mounting

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

*

* Install the pump so that the “filling port” is at the top.

80

Discharge Port "P"

34 Dia.

31.850.8

4949

88

.9

66

.7

121 111

Flow Adj. Screw

19 Hex.Dec.

Suction Port "S"

63 Dia.

M12 Thd. x 22 Deep

8 Places

54

.45

44.4

0

49

.39

49.2

1

15

2.4

01

52.3

5

139

Dia

.

Dia

.

283.5

63

81

95

12.574

Fully Extended 321.5

12

915

2

Filling Port

27 Hex. Head

Plug Furnished

Drain Port

Rc 3 4 Thd.

16

1.6

200

39

220

21.5

161.6Position of

Drain Port

12.73

12.70

Pres. Adj. Screw13 Hex.

22

Inc.

X

View Arrow X

Case Drain Port

5 Hex. Soc.

26

198

29

32

140

270

200 48

13

32

398

212 37 2

10

22 Dia. x Thru.

43 Dia. Spotface

4 Places

3

165 165

123 123

Page 18: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

PISTON PUMPS

■ A3H180-FR01KK-10

■ A3H180-LR01KK-10

Flange Mounting

Foot Mounting

DIMENSIONS IN

MILLIMETRES

For other dimensions, refer to “Flange Mtg”.

*

* Install the pump so that the “filling port” is at the top.

81

A

“A3H” Series High Pressure Variable

Displacement Piston Pumps

36.5

53 53

61.9

10

6.4

79.4

129.5 117Position of

Drain Port

M12 Thd. x 29 Deep

8 Places

Suction Port "S"

76 Dia.

Flow Adj. Screw

19 Hex.Dec.

Discharge Port "P"

44 Dia.

309.5

24

152

.40

152

.35

50.8

05

0.7

5

56

.43

56.2

5

Dia

.

Dia

.

148

.5

160

13

8

80

12.581

Fully Extended 347.5 112

97.5

Drain Port

Rc 3 4 Thd.

Filling Port

27 Hex. Head

Plug Furnished

20

0

16

1.6

220

39

21.5

161.6Pres. Adj. Screw

13 Hex.INC.

12.7312.70

3

198

270

200 65

30

32

140

29

32

398

165

212 37 2

10

22 Dia. x Thru.

43 Dia. Spotface

4 Places

X

View Arrow X

Case Drain Port

5 Hex. Soc.

27.5

123 123

165

Page 19: “A3H” Series High Pressure Variable Displacement Piston …“A3H” Series Variable Displacement Piston Pumps Hydraulic Fluids Hydraulic Fluids. Use petroleum base oils such as

“A3H” Series Variable Displacement Piston Pumps

Sl.

No. Name of Parts

Part Numbers Qty.

A3H16 A3H37 A3H56

1 Gasket 2270-PK313655-3 2271-PK313518-3 2272-PK313433-5 1

2 Back Up Ring 1310E-PK412440-0 1

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

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

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

6 O-Ring S0-NB-P14 S0-NB-P18 S0-NB-P21 1

7 O-Ring S0-NB-P14 1

8 O-Ring S0-NB-P9 4

9 O-Ring S0-NB-P6 S0-NB-P8 S0-NB-P9 1

10 O-Ring SO-NA-A018 1

11 O-Ring SO-NB-P26 1

■ Spare Parts List

List of Seals

Note: When ordering seals, please specify the seal kit number from the table below.

List of Seal Kit

Model Number Seal Kit Numbers

A3H16-※R01KK-10 KS-A3H16-01-10

A3H37-※R01KK-10 KS-A3H37-01-10

A3H56-※R01KK-10 KS-A3H56-01-10

Sl. No.

Name of Parts Part Numbers

Qty. A3H71 A3H100 A3H145 A3H180

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

2 Back Up Ring 1310E-PK412440-0 1

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

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

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

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

7 O-Ring SO-NB-P14 SO-NB-P18 SO-NB-P18 1

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

9 O-Ring SO-NB-P9 4

10 O-Ring SO-NA-A021 1

11 O-Ring SO-NB-P32 1

Note: When ordering seals, please specify the seal kit number from the table below.

List of Seal Kit

Model Number Seal Kit Numbers

A3H71-※R01KK-10 KS-A3H71-01-10

A3H100-※R01KK-10 KS-A3H100-01-10

A3H145-※R01KK-10 KS-A3H145-01-10

A3H180-※R01KK-10 KS-A3H180-01-10

PISTON PUMPS

82

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

■ Pipe Flange Kits.

Pump Model Numbers

Port Name

Pipe Flange Kit Numbers. *1

Threaded Connection Socket Welding

A3H16-※R01 Suction F5-08-A-10 F5-08-B-10

Discharge F6-06-A-M-10 *2

F6-06-B-M-10

A3H37-※R01 Suction F5-10-A-10 F5-10-B-10

Discharge F6-08-A-M-10 *2

F6-08-B-M-10

A3H56-※R01 Suction F5-12-A-10 F5-12-B-10

Discharge F6-08-A-M-10 *2

F6-08-B-M-10

A3H71-※R01 Suction F5-16-A-10 F5-16-B-10

Discharge F6-10-A-M-10 *2

F6-10-B-M-10

A3H100-※R01

A3H145-※R01

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

Discharge F6-10-A-M-10 *2

F6-10-B-M-10

A3H180-※R01 Suction F5-24-A-10 F5-24-B-10

Discharge F6-12-A-M-10 *2

F6-12-B-M-10

*1 Details of pipe flange kits are described in EIC-L-1001.

*2 These flanges are with tapered threaded port, maximum pressure is restricted at 310 Kgf/cm².