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April.2003

YUKEN KOGYO CO.,LTD.

A3H Series High-Pressure Variable Piston PumpA3H Series High-Pressure Variable Piston Pump

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Features

　　 A3H, the ultimate design pump developed by Yuken’s own technology. It is consequently extended with wide displacement range and high pressure.

• Optimal control types available for

industrial machines and industrial vehicles

• Wide displacement range with single and through drive pump

• High performance having maximum pressure up to 35 MPa

• Low noise level and high reliability based on well proved service

• Compact in size, greater ratio of Output power to Mass

　　 A3H, the ultimate design pump developed by Yuken’s own technology. It is consequently extended with wide displacement range and high pressure.

• Optimal control types available for

industrial machines and industrial vehicles

• Wide displacement range with single and through drive pump

• High performance having maximum pressure up to 35 MPa

• Low noise level and high reliability based on well proved service

• Compact in size, greater ratio of Output power to Mass

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A3H180

A3H16

A3H37

A3H145

A3H100

A3H71

A3H56

A10V100

A10V140

A10V71

A10V45

A10V28

PVH131

PVH45

K3VG112

K3VG180

K3VG63

0

10

20

30

40

50

60

70

80

90

100

0 50 100 150 200Displacement　 cm3/rev

Ma

ss　

kg

YUKEN　 　 -SeriesＡ３Ｈ

　　 　　Ｒｅｘｒｏｔｈ Ａ１０Ｖ

　　　　Ｖｉｃｋｅｒｓ ＰＶＨ

KAWASAKI　 GＫ３Ｖ

Compact

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Displacement

16 37 56 71 100 145 180

18 2845 71 100 140

0 50 100 150 200

Displacement cm3/rev

A3H Series

REX. A10V

16 37 56 71 100 145 180

18 2845 71 100 140

0 50 100 150 200

Displacement cm3/rev

A3H Series

REX. A10V

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Model Displacement

cm3/rev Max.Speed

r/min

Max. Pressure

MPa

Rated Pressure

MPa

Mass kg

A3H16 16.3 3600 14.5

A3H37 37.1 2700 19.5

A3H56 56.3 2500 25.7

A3H71 70.7 2300 35.0

A3H100 100.5 2100 44.6

A3H145 145.2 1800 60.0

A3H180 180.7 1800

35 28

70.4

Specifications “01”

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Structure “01”

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Control Type

“01” “09” “14”

　“ 01”: Pressure Compensator Type

　“ 09”: Constant Power Control Type

　“ 14”: Load Sensing Type

　“ 55”: Two Pressure & Two Flow Control Type

　　　　（ High pressure set : By relief valve)

　“ 01”: Pressure Compensator Type

　“ 09”: Constant Power Control Type

　“ 14”: Load Sensing Type

　“ 55”: Two Pressure & Two Flow Control Type

　　　　（ High pressure set : By relief valve)

“55”

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Control Type

Model “01” “09” “14” “55”Rotation

CW

A3H16 ● ● ● ●

A3H37 ● ● ● ● ●

A3H56 ● ● ● ● ●

A3H71 ● ● ● ● ●

A3H100 ● ● ● ● ●

A3H145 ● ● ● ● ●

A3H180 ● ● ● ● ●

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Model Number Designation

Electric Motor No. of Poles

4:4P, 6:6PFrequency of Power Source

A:50Hz, B:60Hz

A3H56-FR14K-10Load Sensing

A3H56-FR01KK-10Pressure

compensatorPressure adjust range

K:5~35 MPa

Shaft Extension

K:Keyed, S:Splined

Series

A3H56-FR09-22B4K-10Constant Power

Control

Control Power Set

See Next Table

Mounting

F:Flange, L:FootDirection of Rotation

R:Clockwise(Normal)

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“09” Constant Power Control Type

Note) Hydraulic power (kW) changes according to shaft rotation speed.

Model

Numbers 3.7 5.5 7.5 11 15 18.5 22 30 37 45 55 75 90

A3H37 ● ● ● ●

A3H56 ● ● ● ● ●

A3H71 ● ● ● ● ●

A3H100 ● ● ● ● ●

A3H145 ● ● ● ● ● ●

A3H180 ● ● ● ● ●

Control Power Set 　 【kW】 at 4-Pole Motor

A3H56-FR09-22B4K-10

Note)

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Dimensions A3H16~A3H180

MODEL A B C D Keyed Shaft

φ（ mm）Splined ShaftSAE J 498b

Pilot FlangeSAE J 744c

A3H16-＊R01 203.5 49.5 190.5 151 φ 22.23 13T-16/32 φ 101.6, 4bolt

A3H37-＊R01 223 61.5 204 163 φ 25.4 15T-16/32 φ 127, 4bolt

A3H56-＊R01 239 62 227 181 φ 31.75 14T-12/24 φ 127, 4bolt

A3H71-＊R01 264 75 254 203.5 φ 38.1 17T-12/24 φ 127, 4bolt

A3H100-＊R01 284.5 95 262.5 215 φ 44.45 13T-8/16 φ 152.4, 4bolt

A3H145-＊R01 321.5 95 281 232 φ 50.8 15T-8/16 φ 152.4, 4bolt

A3H180-＊R01 347.5 112 298 246.5 φ 50.8 15T-8/16 φ 152.4, 4bolt

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Through Drive Type

A3H71 with Gear Pump

Splined Shaft

A3H1671 tandem pump

Keyed Shaft

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Tandem Pumps

A3H164-φ 101.6

A3H374-φ 127

A3H564-φ 127

A3H714-φ 127

A3H1004-φ 152.4

A3H1454-φ 152.4

A3H1804-φ 152.4

Others2-φ82.55

A3H＊37 ▲ ▲ ▲

A3H＊56 ● ● ● ●

A3H＊71 ● ● ● ● ●

A3H＊100 ▲ ▲ ▲ ▲ ▲ ▲

A3H＊145 ▲ ▲ ▲ ▲ ▲ ▲ ▲

A3H＊180 ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲

Note1) ○ : Available, △ : Consult YUKEN

Note2) Others：A16 piston pump, PV2R1 vane pump and other gear pumps etc.

Driven Pump（＊）Model

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Constant Power Control “09”

Pump swash-angle(α) changes in inverse proportion to delivery pressure(p). Under power control condition, the figure p ×α remains in constant balance between two forces acting on cam. One force is spring acting via the compensator spool, the other force is delivery pressure via the feed back piston. The operating point change is dependent on swash angle. Consequently, pump oil power (p × Q) is kept constant at constant condition of shaft speed(N) because Q=N ×function(tanα).

α

pQ

ppspring

cam

control piston

feedback piston

compensator spool

0

M

N

Graphic SymbolStructure of Control Section

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Constant Power Control “09”

Input power

Test condition

・ Hydraulic oil : ISO VG 32

・ Temperature : 40℃

・ Oil viscosity : 32 mm2/sec

・Max. speed : 1800 r/min

・ Control power set : 75 kW

Test condition

・ Hydraulic oil : ISO VG 32

・ Temperature : 40℃

・ Oil viscosity : 32 mm2/sec

・Max. speed : 1800 r/min

・ Control power set : 75 kW

Output flow

Output flow

Input power

Pressure

Test condition

・ Hydraulic oil : ISO VG 32

・ Temperature : 40℃

・ Oil viscosity : 32 mm2/sec

・Max. speed : 1500 r/min

・ Control power set : 45 kW

Test condition

・ Hydraulic oil : ISO VG 32

・ Temperature : 40℃

・ Oil viscosity : 32 mm2/sec

・Max. speed : 1500 r/min

・ Control power set : 45 kW

Performance Data:A3H180

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Load Sensing “14”

Graphic Symbol Load Sensing

Const. Flow Control

●Variable Flow Compensator Setting:1.0~3.0MPa

●Pilot relief valve connection via remote control port (pp)

Pressure

Flo

wF

low

Shaft Speed

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Load Sensing “14”

Test condition ・ Hydraulic oil : ISO VG 32

・ Temperature : 40℃

・ Oil viscosity : 32 mm2/sec

・ Max. speed : 1800 r/min

・ Flow Compensator Set : 1 MPa

Test condition ・ Hydraulic oil : ISO VG 32

・ Temperature : 40℃

・ Oil viscosity : 32 mm2/sec

・ Max. speed : 1800 r/min

・ Flow Compensator Set : 1 MPa

Pressure

Flow

Performance Data:A3H56

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455055606570758085

0 5 10 15 20 25 30 35 40

MPa

ｄB

(A) A3H16

A3H37

A3H56

A3H71

A3H100

A3H145

A3H180

Noise Level Characteristics

1 metre away from pump head cover

Typical Data;at Max. Flow Cut Off, N= 1800 r/min

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Noise Level Characteristics

505560657075808590

5 10 15 20 25 30 35

MPa

ｄB

(A) A3H16

A3H37

A3H56A3H71

A3H100A3H145

A3H180

1 metre away from pump head cover

Typical Data;at Full Cut Off, N= 1800 r/min

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Applications

Presses, Pipe bending machine Tube forming machine Steel works, Rolling mills Injection molding machine, Die casting Compactor Industrial Vehicles

Presses, Pipe bending machine Tube forming machine Steel works, Rolling mills Injection molding machine, Die casting Compactor Industrial Vehicles

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Equivalent Models

A10V PVP PVH PVM K3VL

Maker Model rated P/max.P Displacement cm3/rev

YUKEN A3H 28/35 16,37,56,71,100,140,180

Bosch-Rexroth A10V 28/35 18,28,45,71,100,140

Parker-Hannifin PVP 25/35 16,23,33,41,48,60,76,100,140

Eaton-Vickers PVH 28/32/35 45,57,74,131

Eaton-Vickers PVM 28/35 18,28,45,57,74,98,131

Kawasaki K3VL 32/35 45,71,112,140

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End Cover

Doc.No.： PPD.2797　 Compiled by YUKEN Product Planning Section　 Date of issue： 4/03/2003

Reference Publication Pub.No.： EL-0108 Title： A3H Series High Pressure Variable Displacement Pumps Date of issue： 9/25/2002

YUKEN KOGYO CO., LTD.International Business Department1 Miyamae, Fujisawa, Kanagawa Prefecture, 251-8525 JapanTelephone ： +81-466-23-2107 Facsimile ： +81-466-27-7100e-mail ： int.bd@yuken.co.jp Internet ： www.yuken.co.jp

ALA Industries Limited.1150 Southpoint Drive, Suite DValparaiso, IN 46385Tel: 219-465-4197, Fax: 219-477-4194www,yuken-usa.com