شركة ونزهو برانس للمعدات الهيدروليكية المحدودة
Closed Loop Variable Displacement Piston Pump AA4VG
1.Integrated auxliay pump for boost and piot oilsupply.
2.Flow direcion changes smoothy when the swashplate is moved through the neutral postion
3.High-pressure relief valves with integated boost function.
4.With adjustable pressure cut-off as standard
5.Through drive for mounting of further pumps up to same nominal size
6.Large variety of controls
وصف تفصيلي
1.Integrated auxiliary pump for boost and pilot oil supply, which integrates the boost and pilot oil supply functions into a single component, effectively simplifying the overall hydraulic system structure, reducing installation space, and ensuring stable and reliable oil supply for both boost and pilot circuits, thus improving the operational stability of the entire equipment.
2.Flow direction changes smoothly when the swashplate is moved through the neutral position. This design avoids sudden pressure fluctuations and impact during flow direction switching, reduces mechanical wear of internal components, extends the service life of the pump, and ensures smooth and steady operation of the hydraulic system during forward and reverse operation.
3.High-pressure relief valves with integrated boost function, which not only play a role in overpressure protection to prevent damage to the system caused by excessive pressure but also integrate the boost function, realizing the integration of multiple functions, reducing the number of independent components, and lowering the system cost and maintenance difficulty.
4.With adjustable pressure cut-off as standard, allowing users to flexibly adjust the pressure cut-off value according to actual working conditions and load requirements, ensuring the pump operates within the safe pressure range, and adapting to different application scenarios to improve the versatility and applicability of the pump.
5.Through drive for mounting of further pumps up to same nominal size, providing a convenient and compact installation solution for expanding the hydraulic system. It enables the installation of additional pumps of the same nominal size without redesigning the drive structure, enhancing the expandability of the system and meeting the needs of large flow or multi-circuit oil supply.
6.Large variety of controls, including manual, hydraulic, electric and other control modes, which can be selected according to the actual control requirements of the equipment, realizing flexible and precise control of the pump, and adapting to different operating environments and control systems.
التقييم وطلب عرض الأسعار
يجب اختيار سلسلة المنتجات هذه بما يتوافق مع الدائرة الهيدروليكية المعتمدة. تأكد من تحديد التدفق أو الإزاحة المطلوبة، والضغط المستمر وأقصى ضغط، وسرعة الدوران، ونظام التحكم، ونوع السائل، وواجهة التركيب قبل إجراء الاختيار النهائي.
المعلومات التي يجب تضمينها في طلب عرض الأسعار الخاص بك
- الازاحة أو التدفق المطلوب عند سرعة التشغيل
- ضغط النظام المستمر والقصوي
- سرعة المحرك، متطلبات التحكم ونوع الدائرة
- شفة التركيب، العمود، المنافذ، السوائل ومتطلبات الترشيح
الموارد ذات الصلة
اطلب عرض سعر · مركز التنزيل · تصنيع أصلي / تصنيع تصميمي أصلي
اكتب رمزاً
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | ||
| AA4V | G | D | / | 32 | - | N |
وحدة كباس محوري
| 01 | Swashplate design, variable, nominal pressure 5800 psi (400 bar), maximum pressure 6500 psi (450 bar) | AA4V |
نمط التشغيل
| 02 | مضخة، دائرة مغلقة | G |
الحجم (نيجيريا)
| 03 | الإزاحة الهندسية، انظر "البيانات الفنية" في الصفحة 8 | in3/rev. | 1.71 | 2.44 | 3.42 | 4.33 | 5.49 | 7.63 |
| cm3/rev. | 28 | 40 | 56 | 71 | 90 | 125 |
جهاز تحكم
| 28 | 40 | 56 | 71 | 90 | 125 | |||||
| 04 | بدون وحدة تحكم | ● | ● | ● | ● | ● | ● | إن في | ||
| تحكم تناسبي، هيدروليكي | Pilot-pressure related p = 87 to 260 psi (6 to 18 bar) | ○ | ○ | ● | ● | ● | ● | HD3 | ||
| مؤازر ميكانيكي | ● | ● | ● | ● | ● | ● | واجب منزلي | |||
| تحكم نسبي، كهربائي | الجهد = 12 فولت | ● | ● | ● | ● | ● | ● | الحلقة 3 | ||
| الجهد = 24 فولت | ● | ● | ● | ● | ● | ● | الحلقة الرابعة | |||
| تحكم بنقطتين، كهربائي | الجهد = 12 فولت | ● | ● | ● | ● | ● | ● | إي زي 1 | ||
| الجهد = 24 فولت | ● | ● | ● | ● | ● | ● | EZ2 | |||
| تحكم آلي، متعلق بالسرعة | الجهد = 12 فولت | ● | ● | ● | ● | ● | ● | DA1 | ||
| الجهد = 24 فولت | ● | ● | ● | ● | ● | ● | DA2 | |||
| Hydraulic control, direct operated | ○ | ○ | ● | ● | ● | ● | دي جي | |||
| تحكم كهربائي، تشغيل مباشر،,
صمامان خافضان للضغط |
الجهد = 12 فولت | ● | ● | ● | ● | - | - | إي تي 5 | ||
| الجهد = 24 فولت | ● | ● | ● | ● | - | - | إي تي 6 | |||
قطع الضغط
| 05 | Pressure cut-off (standard) | D |
مفتاح الوضع المحايد
| 06 | بدون مفتاح وضع حيادي (بدون رمز) | ● | |
| مفتاح الوضع المحايد (للتحكم في الأجهزة فقط) | ● | L |
محدد الشوط الميكانيكي
| 07 | بدون محدث شوط ميكانيكي (بدون رمز) | ● | |
| محدد شوط ميكانيكي، قابل للتعديل من الخارج | ● | M |
منفذ ضغط غرفة الشوط
| 28 | 40 | 56 | 71 | 90 | 125 | |||
| 08 | |Without stroking chamber pressure port X3, ، X4 (without code) | ● | ● | ● | ● | ● | ● | |
| منفذ ضغط غرفة الشوط X3, ، X4 | ○ | ○ | ● | ● | ● | ● | T | |
صمام تحكم مزدوج الفعل
| إن في | عالي الدقة | واجب منزلي | دي جي | دا | إي بي | سهل | ||||
| 09 | بدون صمام تحكم DA | ● | ● | ● | ● | - | ● | ● | 1 | |
| صمام تحكم مزدوج الفعل، إعداد ثابت | ● | ● | ● | ● | ● | - | 2 | |||
| DA control valve, mechanically adjustable with position lever | اتجاه التشغيل، في اتجاه عقارب الساعة | - | ● | ● | ● | ● | ● | - | ٣ آر | |
| اتجاه التشغيل,
عكس عقارب الساعة |
- | ● | ● | ● | ● | ● | - | 3L | ||
| صمام تحكم مزدوج الفعل، إعداد ثابت، فتحات لجهاز التحكم التجريبي | - | ○ | ○ | - | ○ | ○ | - | 7 | ||
| DA control valve, fixed setting and
brake inch valve mounted, control with brake fluid |
بناءً على الزيوت المعدنية | - | - | - | - | ● | - | - | 8 | |
•= available ○= on request -= not available
البرنامج المفضل
مسلسل
| 10 | المسلسل 3، الفهرس 2 | 32 |
اتجاه الدوران
| 11 | تمت معاينته على عمود الدوران | مع عقارب الساعة | R |
| عكس عقارب الساعة | L |
مادة مانعة للتسرب
| 12 | NBR (nitrile rubber), shaft seal in FKM (fluoroelastomer) | N |
عمود الدوران
| 28 | 40 | 56 | 71 | 90 | 125 | ||||
| 13 | عمود مسنن
ANSIB92.1a |
لمضخة واحدة | ● | ● | ● | ● | ● | ● | S |
| for combination pump - 1st pump | _1) | _1) | ● | ● | _1) | ● | T | ||
| only for combination pump -2nd pump | - | ● | - | - | ● | - | U | ||
شفة التركيب
| 28 | 40 | 56 | 71 | 90 | 125 | ||||
| 14 | SAEJ744 | ثقبان | ● | ● | ● | - | - | - | C |
| 2+4 فتحات | - | - | - | ● | ● | ● | F | ||
منفذ عامل
| 28 | 40 | 56 | 71 | 90 | 125 | ||||
| 15 | SAE working port A and B, top and bottom | منفذ الشفط S السفلي | - | ● | ● | ● | ● | ● | 52 |
| SAE working port A and B, top and bottom | منفذ الشفط S العلوي | - | ○ | ● | - | - | ○ | 53 | |
| SAE working port A and B, same side right2) | منفذ الشفط S السفلي | ● | - | - | - | - | - | 60 | |
| SAE working port A and B, same side left2) | منفذ الشفط S السفلي | - | - | - | ● | - | - | ||
| SAE working port A and B, same side right2) | منفذ الشفط S العلوي | - | - | - | - | - | ○ | 63 | |
Boost pump
| 16 | Without integrated boost pump | بدون محرك مرور | N |
| with through drive | K | ||
| Integrated boost pump | with and without through drive | F |
Through drives3)
| 28 | 40 | 56 | 71 | 90 | 125 | ||||
| 17 | Without through drive, versions N and F (no. 16) only | ● | ● | ● | ● | ● | ● | 00 | |
| Flange SAE J7444) | سرّة لعمود مسنن | ||||||||
| ٢-٨٢ (أ) | 5/8 in 9T 16/32DP5) | ● | ● | ● | ● | ● | ● | 01 | |
| ١٠١-٢ (ب) | 7/8 in 13T 16/32DP5) | ● | ● | ● | ● | ● | ● | 02 | |
| 1in 15T 16/32DP5) | ● | ● | ● | ● | ● | ● | 04 | ||
| 127-2 (C)6) | 1 1/4 in 14T 12/24DP5) | - | - | ● | ● | ● | ● | 07 | |
| 152-2/4 (D) | 13/4 in 13T 8/16DP5) | - | - | - | - | - | ● | 69 | |
•= available ○= on request -= not available
البرنامج المفضل
1) Standard for combination pump - 1st pump: Shaft S
2) Only possible without attachment filter
3) Specifications for version with integrated boost pump, please contact us for version without boost pump
4) 2 = 2-hole; 4 = 4-hole
5) Hub for splined shaft to ANSI B92.1a
6) NG90 to 125 with additional 4-hole-flange (127-4)
High-pressure relief valve
| Setting range Δp | 28 | 40 | 56 | 71 | 90 | 125 | ||||
| 18 | High pressure relief valve, pilot operated | 1450 to 6100 psi
(100 to 420 bar) |
with bypass | - | - | - | ● | ● | ● | 1 |
| High-pressure relief valve, direct operated,
fixed setting |
3600 to 6100 psi
(250 to 420 bar) |
without bypass | ● | ● | ● | - | - | - | 3 | |
| with bypass | ● | ● | ● | - | - | - | 4 | |||
| 1450 to 3600 bar
(100 to 250 bar) |
without bypass | ● | ● | ● | - | - | - | 5 | ||
| with bypass | ● | ● | ● | - | - | - | 6 | |||
Filtration boost circuit/external boost pressure supply
| 28 | 40 | 56 | 71 | 90 | 125 | |||
| 19 | Filtration in the boost pump suction line | ● | ● | ● | ● | ● | ● | S |
| Filtration in the boost pump pressure line
Ports for external boost circuit filtration (Fe and Fa) |
● | ● | ● | ● | ● | ● | D | |
| Mounted cold start valve and ports for external boost circuit filtration | - | ● | ● | - | - | - | K | |
| Attachment filter with cold start valve | - | ● | ● | ● | ● | ● | F | |
| Attachment filter with cold start valve and visual contamination indicator | - | ● | ● | ● | ● | ● | P | |
| Attachment filter with cold start valve and electric contamination indicator | - | ● | ● | ● | ● | ● | B | |
| External boost pressure supply (version without integrated boost pump - NO0, K...) | ● | ● | ● | ● | ● | ● | E | |
Swivel angle sensor
| 28 | 40 | 56 | 71 | 90 | 125 | |||
| 20 | Without swivel angle sensor (without code) | ● | ● | ● | ● | ● | ● | |
| Electric swivel angle sensor7) | ○ | ○ | ● | ○ | ○ | ○ | R | |
Connector for solenoids8)
| 21 | Without connector (without code), only for purely hydraulic control | ● | ||
| DEUTSCH molded connector, 2-pin | without suppressor diode | ● | P | |
| with suppressor diode (only for EZ and DA) | ● | Q | ||
Standard / special version
| 22 | Standard version | بدون رمز | |
| combined with attachment part or attachment pump | -K | ||
| Special version | -S | ||
| combined with attachment part or attachment pump | -SK |
•= available ○= on request -= not available
البرنامج المفضل
Notice
▶Note the project planning notes on page 68.
▶In addition to the type code, please specify the relevant technical data when placing your order.
7)Please contact us if the swivel angle sensor is used for control
8) Connectors for other electric components may deviate
البيانات الفنية
| حجم | غير مقبول | 28 | 40 | 56 | 71 | 90 | 125 | |||
| الإزاحة الهندسية لكل دورة | Vg max
|
in3 | 1.71 | 2.44 | 3.42 | 4.33 | 5.49 | 7.63 | ||
| variable pump | سم3 | 28 | 40 | 56 | 71 | 90 | 125 | |||
| boost pump (at p = 290 psi (20 bar)) | Vg Sp
|
in3 | 0.37 | 0.52 | 0.71 | 1.20 | 1.20 | 1.73 | ||
| سم3 | 6.1 | 8.6 | 11.6 | 19.6 | 19.6 | 28.3 | ||||
| Rotational speed1) | maximum at Vجي ماكس | nnom | دورة في الدقيقة | 4250 | 4000 | 3600 | 3300 | 3050 | 2950 | |
| limited, maximum2) | nmax1 | دورة في الدقيقة | 4500 | 4200 | 3900 | 3600 | 3300 | 3250 | ||
| intermittent, maximum3) | nmax2 | دورة في الدقيقة | 5000 | 5000 | 4500 | 4100 | 3800 | 3450 | ||
| minimum | nmin | دورة في الدقيقة | 500 | 500 | 500 | 500 | 500 | 500 | ||
| تدفق | at nnom and Vجي ماكس | qv | gpm | 31.4 | 42.3 | 53.4 | 61.8 | 72.6 | 94 | |
| لتر/دقيقة | 119 | 160 | 202 | 234 | 275 | 356 | ||||
| Power4) | at nnom, Vجي ماكس and | Δp = 5800 psi | P | hp | 106 | 143 | 180 | 209 | 245 | 319 |
| Δp =400 bar | P | كيلوواط | 79 | 107 | 134 | 156 | 183 | 238 | ||
| Torque4) | at Vجي ماكس and | Δp =5800 psi | T | Ib-ft | 131 | 188 | 263 | 333 | 423 | 587 |
| Δp =400 bar | T | لا شيء جديد | 178 | 255 | 357 | 452 | 573 | 796 | ||
| Ap =1450 psi | T | lb-ft | 33 | 47 | 66 | 83 | 105 | 147 | ||
| Ap =100 bar | T | لا شيء جديد | 45 | 64 | 89 | 113 | 143 | 199 | ||
| Rotary stiffness of drive shaft | S | c | lb-ft/rad | 23159 | 50892 | 59595 | 72871 | 116609 | 161010 | |
| kNm/rad | 31.4 | 69 | 80.8 | 98.8 | 158.1 | 218.3 | ||||
| T | c | lb-ft/rad | - | - | 70068 | 89171 | - | 185939 | ||
| kNm/rad | - | - | 95 | 120.9 | - | 252.1 | ||||
| U | c | lb-ft/rad | - | 37468 | - | - | 79362 | - | ||
| kNm/rad | - | 50.8 | - | - | 107.6 | - | ||||
| Moment of inertia for rotary group | JTW | lbs-ft2 | 0.0522 | 0.0902 | 0.1566 | 0.2302 | 0.3536 | 0.5505 | ||
| kgm2 | 0.0022 | 0.0038 | 0.0066 | 0.0097 | 0.0149 | 0.0232 | ||||
| Maximum angular acceleration5) | α | rad/s2 | 38000 | 30000 | 24000 | 21000 | 18000 | 14000 | ||
| Case volume | V | gal | 0.24 | 0.29 | 0.40 | 0.34 | 0.40 | 0.55 | ||
| I | 0.9 | 1.1 | 1.5 | 1.3 | 1.5 | 2.1 | ||||
| Weight (without through drive) approx. | m | Ibs | 64 | 68 | 84 | 110 | 132 | 176 | ||
| كيلوغرام | 29 | 31 | 38 | 50 | 60 | 80 | ||||
Notice
▶Theoretical values, without efficiency and tolerances;values rounded
▶Operation above the maximum values or below the minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Bosch Rexroth recommend testing the loads by means of experiment or calculation / simulation and comparison with the permissible values.
Determining the operating characteristics
| تدفق | qv=(Vg ∙ n ∙ ηv) /231 | gpm | (Vg ∙ n ∙ ηv) / 1000 | لتر/دقيقة |
| Torque | T=(Vg ∙ Δp) /(24 ∙ π ∙ ηhm) | lb-ft | (Vg ∙ Δp) /(24 ∙ π ∙ ηhm) | لا شيء جديد |
| Power | P=(2π ∙ T ∙ n)/33000=(qv ∙ Δp)/(1714 ∙ ηt) | HP | (2π ∙ M ∙ n)/60000=(qv ∙ Δp∙ ηt)/600 | كيلوواط |
Key
Vg Displacement per revolution [in3(cm3)]
Δp Differential pressure [psi(bar)]
n Rotational speed [rpm]
ηv Volumetric efficiency
ηhm Hydraulic-mechanical efficiency
ηt Total efficiency (ηt= ηv*ηhm)
1)The values are applicable:
- for the optimum viscosity range from Vopt = 170 to 82 SUS(36 to 16 mm2/s)
- for hydraulic fluid based on mineral oils (for HF hydraulic fluids,observe the technical data in 90225)
2)Valid at half corner power (e.g. at Vجي ماكس and pN/2)
3) Valid at Δp = 1000 to 2200 psi (70 to 150 bar) or Δp < 4350 psi(300 bar) and t < 0.1 s
4)Without boost pump
5)The data are valid for values between the minimum required and maximum permissible rotational speed.
Valid for external excitation (e.g. diesel engine 2 to 8 times rotary frequency, cardan shaft twice the rotary frequency).
The limit value is only valid for a single pump.
The load capacity of the connecting parts must be considered.
Permissible radial and axial forces on the drive shaft
▼Splined shaft ANSI B92.1a
| حجم | غير مقبول | 28 | 40 | 40 | 56 | 56 | 71 | ||
| عمود الدوران | in | 1 | 1 | 1 1/4 | 1 1/4 | 1 3/8 | 1 1/4 | ||
| Maximum radial force at distance a(from shaft collar) | ![]() |
Fq الحد الأقصى | lbf | 671 | 958 | 766 | 1073 | 975 | 1360 |
| N | 2983 | 4261 | 3409 | 4772 | 4338 | 6050 | |||
| a | in | 0.75 | 0.75 | 0.94 | 0.94 | 0.94 | 0.94 | ||
| mm | 19 | 19 | 24 | 24 | 24 | 24 | |||
| Maximum axial force | ![]() |
+Fax max | lbf | 350 | 477 | 477 | 654 | 654 | 954 |
| N | 1557 | 2120 | 2120 | 2910 | 2910 | 4242 | |||
| -Fax max | lbf | 94 | 198 | 198 | 355 | 355 | 620 | ||
| N | 417 | 880 | 880 | 1490 | 1490 | 2758 | |||
| حجم | غير مقبول | 71 | 90 | 90 | 125 | 125 | ||
| عمود الدوران | in | 1 3/8 | 1 1/4 | 1 3/4 | 1 3/4 | 2 | ||
| Maximum radial force at distance a(from shaft collar) | ![]() |
Fq الحد الأقصى | lbf | 1236 | 1724 | 1232 | 1711 | 1497 |
| N | 550 | 7670 | 5478 | 7609 | 6658 | |||
| a | in | 0.94 | 0.94 | 1.32 | 1.32 | 1.57 | ||
| mm | 24 | 24 | 33.5 | 33.5 | 40 | |||
| Maximum axial force | ![]() |
+Fax max | lbf | 954 | 973 | 973 | 1361 | 1361 |
| N | 4242 | 4330 | 4330 | 6053 | 6053 | |||
| -Fax max | lbf | 620 | 600 | 600 | 797 | 797 | ||
| N | 2758 | 2670 | 2670 | 3547 | 3547 | |||
Notice
▶The axial and radial forces generally influence the service life of the bearings.
▶Special requirements apply in the case of belt drive and cardan shaft. Please contact u
| حجم | غير مقبول | 28 | 40 | 56 | 71 | 90 | 125 | |||
| Torque at Vg max and | Δp = 5800 psi1) | T | lb-ft | 131 | 188 | 263 | 333 | 423 | 587 | |
| Δp = 400 bar1) | T | لا شيء جديد | 178 | 255 | 357 | 452 | 573 | 796 | ||
| Maximum input torque
at drive shaft2) ANSI B92.1a (SAE J744) |
S | TE الحد الأقصى | lb-ft | 232 | 444 | 444 | 444 | 1210 | 1210 | |
| لا شيء جديد | 314 | 602 | 602 | 602 | 1640 | 1640 | ||||
| in | 1 | 1 1/4 | 1 1/4 | 1 1/4 | 1 3/4 | 1 3/4 | ||||
| T | TE الحد الأقصى | lb-ft | - | - | 715 | 715 | - | 1969 | ||
| لا شيء جديد | - | - | 970 | 970 | - | 2670 | ||||
| in | - | - | 1 3/8 | 1 3/8 | - | 2 | ||||
| U3) | TE الحد الأقصى | lb-ft | - | 232 | - | - | 444 | - | ||
| لا شيء جديد | - | 314 | - | - | 602 | - | ||||
| in | - | 1 | - | - | 1 1/4 | - | ||||
| Maximum through-drive torque4) | TD الحد الأقصى | lb-ft | 170 | 232 | 384 | 487 | 606 | 819 | ||
| لا شيء جديد | 231 | 314 | 521 | 660 | 822 | 1110 | ||||
Distribution of torques

| Torque at 1st pump | T1 |
| Torque at 2nd pump | T2 |
| Torque at 3rd pump | T3 |
| Input torque | TE=T1+T2+T3 |
| TE < TE max | |
| Through∙drive torque | TD=T2+T3 |
| TD < TD max |
1) Efficiency not considered
2) For drive shafts free of radial force
3) Shaft "U" is only permitted as drive shaft on the 2nd pump on a combination pump of the same size.
4)Note maximum input torque for shaft S!








