A11V(L)O Open shaft variable displacement pump 1

A11V(L)O Open shaft variable displacement pump 2

A11V(L)O Open shaft variable displacement pump

The rotating parts of the A11VO pumps are precision designed, and the variable mechanism enables stepless changes in flow rate by adjusting the angle of the rotating swash plate. In addition, A11VO pumps are available with a variety of controls to meet different application requirements, and the power control can be adjusted even when the pump is running.

The A11VO variable pumps are particularly suitable for mobile operating machinery, such as mining machinery, marine machinery, construction machinery, etc., to provide strong power support, and are suitable for a variety of mechanical environment.

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Product features

◉ Automatic oil filling function: The pump operates in automatic start-up oil filling under conditions of tank pressurization or use of the built-in filling pump (impeller).

◉ Various control options: Various control options are available to meet the requirements of various applications, and the power control option is externally adjustable, allowing the pump to be operated even when it is running.

◉ Through-axis drive: 100% through-axis drive, compatible with gear pumps and axial piston pumps, with output flow proportional to the drive speed and available in the qVmax and qVmin =0 stepless variation between.

◉ High efficiency and low noise: The cylinder and the flow distribution disk adopt spherical oil distribution, which can be automatically centered in the rotation, with smaller circumferential speed, high efficiency and low noise.

◉ Excellent performance in high-pressure environments: Maintains high volumetric ratio in high-pressure environments, high mating accuracy.

Specifications

Technical Data/Specifications	A11VO	code	unit	75	95	115	130	145	190	260
Displacement	run-rate	Vgmax	cm³	74	93.5	93.5	130	145	193	260
Displacement	run-rate	Vgmin	cm³	0	0	0	0	0	0	0
Speed	Vgmax1)	nmax	rpm	2550	2350	2350	2100	2200	2100	1800
Speed	Vg≤Vgmax3)	nmax1	rpm	3000	2780	2780	2500	2500	2100	2300
Flow	nmax Vgmax	qvmax	L/min	189	220	220	273	319	405	468
Power	qvmax△p=350bar	Pmax	kW	110	128	128	159	186	236	273
Torque	Vgmax △p=350 bar	Tmax	Nm	412	521	521	724	808	1075	1448
Rotational rigidity	Shaft end Z	c	Nm/rad	145836	199601	199601	302495	302495	346190	686465
	Shaft end P	c	Nm/rad	143104	196435	196435	312403	312403	383292	653835
	Shaft end S	c	Nm/rad	101921	173704	173704	236861	236861	259773	352009
	Shaft end T	c	Nm/rad	125603	-	-	-	-	301928	567115
Rotating Assembly Moment of Inertia		JTW	kgm²	0.0115	0.0173	0.0173	0.0318	0.0341	0.055	0.0878
Maximum Angular Acceleration		a	rad/s²	15000	13000	13000	10500	9000	6800	4800
Housing Capacity		V	L	1.85	2.1	2.1	29	2.9	3.8	4.6
Weight (Controls) Approximation		m	kg	45	53	53	66	76	95	125

Technical Data/Specifications	A11VLO	code	unit	75	95	115	130	145	190	260
Displacement	Run-rate	Vgmax	cm³	-	-	-	130	145	193	260
Displacement	Run-rate	Vgmin	cm³	-	-	-	0	0	0	0
Speed	Vgmax1)	nmax	rpm	-	-	-	2500	2500	2500	2300
Speed	Vg≤Vgmax3)	nmax1	rpm	-	-	-	2500	2500	2500	2300
Flow	nmax Vgmax	qvmax	L/min	-	-	-	325	363	483	598
Power	qvmax △p=350bar	Pmax	kW	-	-	-	190	211	281	349
Torque	Vgmax △p=350 bar	Tmax	Nm	-	-	-	724	808	1075	1448
Rotational rigidity	Shaft end Z	c	Nm/rad	-	-	-	302495	302495	346190	686465
	Shaft end P	c	Nm/rad	-	-	-	312403	312403	383292	653835
	Shaft end S	c	Nm/rad	-	-	-	236861	236861	259773	352009
	Shaft end T	c	Nm/rad	-	-	-	-	-	301928	567115
Rotating Assembly Moment of Inertia		JTW	kgm²	-	-	-	0.0337	0.036	0.0577	0.0895
Maximum Angular Acceleration		a	rad/s²	-	-	-	10500	9000	6800	4800
Housing Capacity		V	L	-	-	-	29	2.9	3.8	4.6
Weight (Controls) Approximation		m	kg	-	-	-	72	73	104	138

Note on labeling
1) Values apply to suction port S and mineral hydraulic fluids at an absolute pressure (Pabs) of 1 bar.
2) Values apply to suction port S and mineral hydraulic fluids at an absolute pressure (Pabs) of at least 0.8 bar.
3) Values apply if Vg≤Vgmax or if the inlet pressure (Pabs) at the suction port S increases.
4) The effective area is between 0 and the maximum permissible speed. It applies to external excitation (e.g. engine rotation frequency 2 to 8 times the original, universal joint shaft rotation frequency twice the original).
Limit values apply only to single-stage pumps.
The loads on the connections must be taken into account.
Attention:
Exceeding the permissible limits may result in loss of function, shortened service life or damage to components of the axial piston pump. The permissible values can be determined by calculation.