A11VO High Pressure Rexroth Piston Pumps

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A11VO High Pressure Rexroth Piston Pumps

A11VO axial piston variable displacement pumps are available in 40, 60, 75, 95, 130, 145, 190 and 260 series to meet different hydraulic system requirements.

Operating at a nominal pressure of 350 bar and up to 400 bar, the A11VO series provides powerful power for demanding applications. Its open piston pump design ensures efficient operation and consistent performance under varying conditions.

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Characteristic

The A11VO is a variable displacement axial piston pump with a swash plate design. The Rexroth A11VO high-pressure Rexroth piston pump operates under self-priming conditions for excellent tank pressurization and can optionally be equipped with a charge pump (impeller) to provide stable, continuous hydraulic power to the system.

Comprehensive control options are also available. Its power control option is externally adjustable, meaning power can be fine-tuned as needed even while the pump is running. This design greatly increases the convenience and efficiency of operation. Its thru-shaft drive design allows it to be easily used with gear pumps and axial flow pumps for 100% drive through.

The output flow rate of the Rexroth A11VO piston pump is directly proportional to the drive speed, which means that the change in flow rate is directly related to the drive speed. Between qV max and qV min, unlimited variations are possible, allowing the pump to excel in a variety of applications, whether high or low flows are required.

The Rexroth A11VO piston pump demonstrates its performance in open circuit hydraulic systems thanks to its swash plate design, excellent control options, efficient through-shaft transmission and proportional relationship between flow and speed. It works brilliantly in mobile applications and other systems requiring hydrostatic actuation.

Parameter

A11VO High Pressure Rexroth Piston Pumps

Size	A11VO		40	60	75	95	130	145	190	260
Displacement	Vg max	cm3	42	58.5	74	93.5	130	145	193	260
	Vg min	cm3	0	0	0	0	0	0	0	0
Speed maximum at Vg max maximum at Vg £ Vg max	nmax	rpm	3000	2700	2550	2350	2100	2200	2100	1800
	nmax1	rpm	3500	3250	3000	2780	2500	2500	2100	2300
Flow at nmax and Vg max	qv max	l/min	126	158	189	220	273	319	405	468

Power at qv max and Δp = 350 bar	Pmax	kW	74	92	110	128	159	186	236	273

Torque at Vg max and Δp = 350 bar	Tmax	Nm	234	326	412	521	724	808	1075	1448

Rotary stiffness	Z shaft	Nm/rad	88894	102440	145836	199601	302495	302495	346190	686465
	P shaft	Nm/rad	87467	107888	143104	196435	312403	312403	383292	653835
	S shaft	Nm/rad	58347	86308	101921	173704	236861	236861	259773	352009
	T shaft	Nm/rad	74476	102440	125603	–	–	–	301928	567115
Moment of inertia for rotary group	JTW	kgm2	0.0048	0.0082	0.0115	0.0173	0.0318	0.0341	0.055	0.0878
Angular acceleration, max.	a	rad/s2	22000	17500	15000	13000	10500	9000	6800	4800
Filling capacity	V	l	1.1	1.35	1.85	2.1	2.9	2.9	3.8	4.6
Mass (approx.)	m	kg	32	40	45	53	66	76	95	125

Dimension

Application

Rexroth A11VO piston pump is a key component of a series of construction machinery hydraulic transmission systems. The hydraulic power is stable and reliable, and the control is precise. It is an ideal choice for concrete pump trucks, scraper machinery, concrete machinery, road machinery, compaction machinery, and hoisting machinery.

A11VO High Pressure Rexroth Piston Pumps

A11VO axial piston variable displacement pumps are available in 40, 60, 75, 95, 130, 145, 190 and 260 series to meet different hydraulic system requirements. Operating at a nominal pressure of 350 bar and up to 400 bar, the A11VO series provides powerful power for demanding applications. Its open piston pump design ensures efficient operation and consistent performance under varying conditions.

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Characteristic

Parameter

A11VO High Pressure Rexroth Piston Pumps

Size	A11VO		40	60	75	95	130	145	190	260
Displacement	Vg max	cm3	42	58.5	74	93.5	130	145	193	260
	Vg min	cm3	0	0	0	0	0	0	0	0
Speed maximum at Vg max maximum at Vg £ Vg max	nmax	rpm	3000	2700	2550	2350	2100	2200	2100	1800
	nmax1	rpm	3500	3250	3000	2780	2500	2500	2100	2300
Flow at nmax and Vg max	qv max	l/min	126	158	189	220	273	319	405	468

Power at qv max and Δp = 350 bar	Pmax	kW	74	92	110	128	159	186	236	273

Torque at Vg max and Δp = 350 bar	Tmax	Nm	234	326	412	521	724	808	1075	1448

Rotary stiffness	Z shaft	Nm/rad	88894	102440	145836	199601	302495	302495	346190	686465
	P shaft	Nm/rad	87467	107888	143104	196435	312403	312403	383292	653835
	S shaft	Nm/rad	58347	86308	101921	173704	236861	236861	259773	352009
	T shaft	Nm/rad	74476	102440	125603	–	–	–	301928	567115
Moment of inertia for rotary group	JTW	kgm2	0.0048	0.0082	0.0115	0.0173	0.0318	0.0341	0.055	0.0878
Angular acceleration, max.	a	rad/s2	22000	17500	15000	13000	10500	9000	6800	4800
Filling capacity	V	l	1.1	1.35	1.85	2.1	2.9	2.9	3.8	4.6
Mass (approx.)	m	kg	32	40	45	53	66	76	95	125