Rexroth A4VG Hydraulic Pump

Rexroth A4VG Hydraulic Pump Product Introduction

The Rexroth A4VG hydraulic axial piston pump is a high-performance component engineered for demanding applications in mobile and industrial hydraulic systems. Renowned for its precision and reliability, this pump is designed to provide consistent power and efficiency in a compact package.

Key Features:

1. Variable Displacement: The A4VG pump offers variable displacement, allowing for precise control of hydraulic output, which optimizes energy use and improves system efficiency.

2. High Power Density: Despite its compact size, the A4VG delivers high power output, making it ideal for applications requiring a powerful yet space-efficient solution.

3. Robust Design: Built with durable materials and advanced engineering, the pump is designed to withstand harsh conditions, ensuring long service life and minimal downtime.

4. Smooth Operation: The A4VG is designed to provide smooth and quiet operation, reducing noise levels and improving the working environment.

5. Flexible Configuration: With multiple control options and mounting configurations, the pump can be easily integrated into various hydraulic systems, providing versatility for different applications.

6. Efficient Cooling: The pump’s design includes advanced cooling features, ensuring reliable performance even under high load conditions, which prevents overheating and prolongs component life.

Type: A4VG45, A4VG65, A4VG85, A4VG110, A4VG145, A4VG175, A4VG210, A4VG280

A4VG 28/32/40/45/56/71/90/105/125/140/175/180/250/500 hydraulic pump parts list:

Technical data
Size		NG		28	40	56	71	90	125	180
Geometric displacement,per revolution
	variable pump	Vg max	cm3	28	40	56	71	90	125	180
	boost pump (at p = 20 bar)	Vg sp	cm3	6.1	8.6	11.6	19.6	19.6	28.3	39.8
Rotational speed1)	maximum at Vg max	nnom	rpm	4250	4000	3600	3300	3050	2850	2500
	limited maximum2)	nmax1	rpm	4500	4200	3900	3600	3300	3250	2900
	intermittent maximum3)	nmax2	rpm	5000	5000	4500	4100	3800	3450	3000
	minimum	nmin	rpm	500	500	500	500	500	500	500
Flow	at nnomand Vg max	qv	l/min	119	160	202	234	275	356	450
Power4)	at nnom,Vg maxand Δp = 400 bar	P	kW	79	107	134	156	183	238	300
Torque4)	with Vg maxand Δp = 400 bar                          Δp = 100 bar	M	Nm	178	255	357	452	573	796	1146
		M	Nm	45	64	89	113	143	199	286
Rotary stiffness of drive shaft	S	c	kNm/rad	31.4	69	80.8	98.8	158.1	218.3	244.5
	T	c	kNm/rad	–	–	95	120.9	–	252.1	318.4
	A	c	kNm/rad	–	79.6	95.8	142.4	176.8	256.5	–
	Z	c	kNm/rad	32.8	67.5	78.8	122.8	137	223.7	319.6
	U	c	kNm/rad	–	50.8	–	–	107.6	–	–
Moment of inertia of the rotary group		JTw	kgm2	0.0022	0.0038	0.0066	0.0097	0.0149	0.0232	0.0444
Maximum angular acceleration5)		α	rad/s2	38000	30000	24000	21000	18000	14000	11000
Case volume		V	l	0.9	1.1	1.5	1.3	1.5	2.1	3.1
Weight (without through drive) approx.6)		m	kg	29	31	38	50	60	80	101