Variable Displacement Axial Piston Pump for Closed Circuit Manufacturer

Variable Displacement Axial Piston Pump for Closed Circuit

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The HL-A4VSG variable displacement pump is designed for closed-loop hydraulic systems, delivering precise control and high-pressure power output for industrial equipment and construction machinery.

Displacement 40-500 cm³/rev
Nominal pressure 350 bar
Max. allowable pressure 400 bar

Technical Data

Size

Displacement
(cm³/rev)

Max. speed
(rpm)

Max. Flow
(L/min)

n=n_max

n=1500rpm

Max. Power(kw)
Δp=350 bar

n=n_max

n=1500rpm

Details

3700

148

Displacement	V_gmax	cm³/rev	40
Max. rotation speed	n_max	rpm	3700
Max. flow	at n=n_max	L/min	148
Max. flow	at n=1500rpm	L/min	60
Max. power Δp=350 bar	at n=n_max	kW	86
Max. power Δp=350 bar	at n=1500rpm	kW	35
Max. torque	Δp=350 bar	Nm	223
Torque	Δp=100 bar	Nm	64
Weight	approx.	kg	47

3200

227

107

132

Displacement	V_gmax	cm³/rev	71
Max. rotation speed	n_max	rpm	3200
Max. flow	at n=n_max	L/min	227
Max. flow	at n=1500rpm	L/min	107
Max. power Δp=350 bar	at n=n_max	kW	132
Max. power Δp=350 bar	at n=1500rpm	kW	62
Max. torque	Δp=350 bar	Nm	395
Torque	Δp=100 bar	Nm	113
Weight	approx.	kg	60

125

2600

325

186

190

109

Displacement	V_gmax	cm³/rev	125
Max. rotation speed	n_max	rpm	2600
Max. flow	at n=n_max	L/min	325
Max. flow	at n=1500rpm	L/min	186
Max. power Δp=350 bar	at n=n_max	kW	190
Max. power Δp=350 bar	at n=1500rpm	kW	109
Max. torque	Δp=350 bar	Nm	696
Torque	Δp=100 bar	Nm	199
Weight	approx.	kg	100

180

2400

432

270

252

158

Displacement	V_gmax	cm³/rev	180
Max. rotation speed	n_max	rpm	2400
Max. flow	at n=n_max	L/min	432
Max. flow	at n=1500rpm	L/min	270
Max. power Δp=350 bar	at n=n_max	kW	252
Max. power Δp=350 bar	at n=1500rpm	kW	158
Max. torque	Δp=350 bar	Nm	1002
Torque	Δp=100 bar	Nm	286
Weight	approx.	kg	116

250

2200

550

375

321

219

Displacement	V_gmax	cm³/rev	250
Max. rotation speed	n_max	rpm	2200
Max. flow	at n=n_max	L/min	550
Max. flow	at n=1500rpm	L/min	375
Max. power Δp=350 bar	at n=n_max	kW	321
Max. power Δp=350 bar	at n=1500rpm	kW	219
Max. torque	Δp=350 bar	Nm	1391
Torque	Δp=100 bar	Nm	398
Weight	approx.	kg	214

355

2000

710

533

414

311

Displacement	V_gmax	cm³/rev	355
Max. rotation speed	n_max	rpm	2000
Max. flow	at n=n_max	L/min	710
Max. flow	at n=1500rpm	L/min	533
Max. power Δp=350 bar	at n=n_max	kW	414
Max. power Δp=350 bar	at n=1500rpm	kW	311
Max. torque	Δp=350 bar	Nm	1976
Torque	Δp=100 bar	Nm	564
Weight	approx.	kg	237

500

1800

900

750

525

438

Displacement	V_gmax	cm³/rev	500
Max. rotation speed	n_max	rpm	1800
Max. flow	at n=n_max	L/min	900
Max. flow	at n=1500rpm	L/min	750
Max. power Δp=350 bar	at n=n_max	kW	525
Max. power Δp=350 bar	at n=1500rpm	kW	438
Max. torque	Δp=350 bar	Nm	2783
Torque	Δp=100 bar	Nm	795
Weight	approx.	kg	352

Size	Displacement (cm³/rev)	Max. speed (rpm)	Max. Flow (L/min)		Max. Power(kw) Δp=350 bar
Size	Displacement (cm³/rev)	Max. speed (rpm)	n=n_max	n=1500rpm	n=n_max	n=1500rpm
40	40	3700	148	60	86	35
71	71	3200	227	107	132	62
125	125	2600	325	186	190	109
180	180	2400	432	270	252	158
250	250	2200	550	375	321	219
355	355	2000	710	533	414	311
500	500	1800	900	750	525	438

Features

Engineered for High-Performance Applications Designed for industrial and mobile equipment requiring accurate pressure and flow control.
Axial Piston Variable Displacement Pump Uses a swashplate mechanism for infinitely adjustable displacement.
Flow Proportional to Speed and Displacement Ensures smooth and consistent hydraulic output.
Handles High Operating Pressure Supports pressures up to 35 MPa, making it suitable for demanding conditions.
Exceptional Suction Performance Optimized for continuous and stable operation.
Compact and Lightweight Design Reduces system footprint while maintaining high power output.
Low-Noise Operation Designed to minimize vibration and enhance efficiency.
Hydrostatic Balanced Shoes Improve durability and wear resistance.
Fast Response Control Provides rapid system adjustments for dynamic applications.
Integrated Swashplate Angle Indicator Allows for precise monitoring and adjustments.
Control Mode DR, DP, FR, DFR, LR2, MA, HM, HS, EO, HD, DFE1

Applications

Mining and Quarrying Equipment

Marine and Offshore Equipment

Metallurgical and Steelmaking Equipment

To boost the efficiency and reliability of your closed-circuit hydraulic system, consider this advanced axial piston pump. Contact us today to find the right solution for your application.