Variable Displacement Axial Piston Pump for Open Circuit

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Website: http://hydraulicsystem-en.com/1-1-12-variable-displacement-pump.html

The HL-A11VO series hydraulic pump is built for compact, durable performance, delivering steady hydraulic power even under tough conditions. It is especially well-suited for applications with rapidly changing dynamic loads.

Displacement 74-260 cm³/rev
Nominal pressure 350 bar
Max. allowable pressure 400 bar

Technical Data

Size

Displacement (cm³/rev)

V_gmax

V_gmin

Max. speed (rpm)

V_gmax

V_gV≤V_gmax

Max. Flow (L/min)

Max. Power(kw)
Δp=350 bar

Details

2550

3000

189

110

Geometric displacement		V_gmax	cm³/rev	74
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	2550
Rotation speed	at V_g≤V_gmax	n_max1	rpm	3000
Flow	at n_max and V_gmax	q_{v max}	L/min	189
Power	at q_{v max} and Δp=350bar	P_max	kW	110
Torque	at V_gmax and Δp=350bar	T_max	Nm	412
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	145836
	Shaft end P	c	Nm/rad	143104
	Shaft end S	c	Nm/rad	101921
	Shaft end T	c	Nm/rad	125603
Moment of inertia for rotary group		J_TW	kgm²	0.0115
Max. angular acceleration		α	rad/s²	15000
Case volume		V	L	1.85
Weight	approx.	m	kgm²	45

93.5

2350

2780

220

128

Geometric displacement		V_gmax	cm³/rev	93.5
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	2350
Rotation speed	at V_g≤V_gmax	n_max1	rpm	2780
Flow	at n_max and V_gmax	q_{v max}	L/min	220
Power	at q_{v max} and Δp=350bar	P_max	kW	128
Torque	at V_gmax and Δp=350bar	T_max	Nm	521
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	199601
	Shaft end P	c	Nm/rad	196435
	Shaft end S	c	Nm/rad	173704
	Shaft end T	c	Nm/rad
Moment of inertia for rotary group		J_TW	kgm²	0.0173
Max. angular acceleration		α	rad/s²	13000
Case volume		V	L	2.1
Weight	approx.	m	kgm²	53

115

93.5

2350

2780

220

128

Geometric displacement		V_gmax	cm³/rev	93.5
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	2350
Rotation speed	at V_g≤V_gmax	n_max1	rpm	2780
Flow	at n_max and V_gmax	q_{v max}	L/min	220
Power	at q_{v max} and Δp=350bar	P_max	kW	128
Torque	at V_gmax and Δp=350bar	T_max	Nm	521
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	199601
	Shaft end P	c	Nm/rad	196435
	Shaft end S	c	Nm/rad	173704
	Shaft end T	c	Nm/rad
Moment of inertia for rotary group		J_TW	kgm²	0.0173
Max. angular acceleration		α	rad/s²	13000
Case volume		V	L	2.1
Weight	approx.	m	kgm²	53

130

2100

2500

273

159

Geometric displacement		V_gmax	cm³/rev	130
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	2100
Rotation speed	at V_g≤V_gmax	n_max1	rpm	2500
Flow	at n_max and V_gmax	q_{v max}	L/min	273
Power	at q_{v max} and Δp=350bar	P_max	kW	159
Torque	at V_gmax and Δp=350bar	T_max	Nm	724
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	302495
	Shaft end P	c	Nm/rad	312403
	Shaft end S	c	Nm/rad	236861
	Shaft end T	c	Nm/rad
Moment of inertia for rotary group		J_TW	kgm²	0.0318
Max. angular acceleration		α	rad/s²	10500
Case volume		V	L	2.9
Weight	approx.	m	kgm²	66

145

2200

2500

319

186

Geometric displacement		V_gmax	cm³/rev	145
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	2200
Rotation speed	at V_g≤V_gmax	n_max1	rpm	2500
Flow	at n_max and V_gmax	q_{v max}	L/min	319
Power	at q_{v max} and Δp=350bar	P_max	kW	186
Torque	at V_gmax and Δp=350bar	T_max	Nm	808
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	302495
	Shaft end P	c	Nm/rad	312403
	Shaft end S	c	Nm/rad	236861
	Shaft end T	c	Nm/rad
Moment of inertia for rotary group		J_TW	kgm²	0.0341
Max. angular acceleration		α	rad/s²	9000
Case volume		V	L	2.9
Weight	approx.	m	kgm²	76

190

193

2100

405

236

Geometric displacement		V_gmax	cm³/rev	193
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	2100
Rotation speed	at V_g≤V_gmax	n_max1	rpm	2100
Flow	at n_max and V_gmax	q_{v max}	L/min	405
Power	at q_{v max} and Δp=350bar	P_max	kW	236
Torque	at V_gmax and Δp=350bar	T_max	Nm	1075
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	346190
	Shaft end P	c	Nm/rad	383292
	Shaft end S	c	Nm/rad	259773
	Shaft end T	c	Nm/rad	301928
Moment of inertia for rotary group		J_TW	kgm²	0.055
Max. angular acceleration		α	rad/s²	6800
Case volume		V	L	3.8
Weight	approx.	m	kgm²	95

260

1800

2300

468

273

Geometric displacement		V_gmax	cm³/rev	260
Geometric displacement		V_gmin	cm³/rev	0
Rotation speed	at V_gmax	n_max	rpm	1800
Rotation speed	at V_g≤V_gmax	n_max1	rpm	2300
Flow	at n_max and V_gmax	q_{v max}	L/min	468
Power	at q_{v max} and Δp=350bar	P_max	kW	273
Torque	at V_gmax and Δp=350bar	T_max	Nm	1448
Rotary stiffness of drive shaft	Shaft end Z	c	Nm/rad	686465
	Shaft end P	c	Nm/rad	653835
	Shaft end S	c	Nm/rad	352009
	Shaft end T	c	Nm/rad	567115
Moment of inertia for rotary group		J_TW	kgm²	0.0878
Max. angular acceleration		α	rad/s²	4800
Case volume		V	L	4.6
Weight	approx.	m	kgm²	125

Size	Displacement (cm³/rev)		Max. speed (rpm)		Max. Flow (L/min)	Max. power (kw)
Size	V_gmax	V_gmin	V_gmax	V_g≤V_gmax	Max. Flow (L/min)	Δp=350 bar
75	74	0	2550	3000	189	110
95	93.5	0	2350	2780	220	128
115	93.5	0	2350	2780	220	128
130	130	0	2100	2500	273	159
145	145	0	2200	2500	319	186
190	193	0	2100	2100	405	236
260	260	0	1800	2300	468	273

Features

Static hydraulic transmission Designed for open-loop hydraulic systems.
Flow proportional to drive speed and displacement Allows stepless adjustment through swivel angle changes.
Auto-supply operation Runs with either pressurized tanks or optional built-in charge pump.
Variety of control options Provides flexibility to meet different application demands.
External power control adjustability Control devices can be adjusted even during operation.
Through-drive capability Compatible with gear pumps or other axial piston pumps of the same size.
Flow output adjustable from zero Provides fine-tuned control between zero and maximum flow.
Control Mode DRS, EP, EPD, LRDU, LES, LRDS, LRDH

Applications

Mining and Quarrying Equipment

Construction Machinery

This axial piston pump offers reliability, precision, and flexibility for your hydraulic system. Contact us today to find the right solution for your application.