Rexroth A8VO Axial Piston Variable Double Pump

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Axial Piston Variable Displacement Double Pump
Series : A8VO 61 / 63 Series
Model : A8VO55, A8VO80, A8VO107, A8VO140, A8VO200.
Nominal Pressure 380 Bar
Maximum Pressure 420 Bar
Axial Tapered Piston For Hydrostatic Drives
Bent-Axis Design In Open Circuit
For Machines with a Multi-Circuit System Such as Excavators, Cranes, Drilling Equipment

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Description
Technical Specifications
Product Models
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Rexroth A8VO Axial Piston Variable Double Pump is a sturdy hydraulic pump, specially designed for hydrostatic drives in open circuits. These pumps comes with two axial tapered piston rotary groups with a bent-axis design, which allows variable displacement. Their pump flow is proportional to the input speed and to the displacement, and is infinitely variable from qV max to qV min = 0.

These pumps are perfect for applications requiring high-pressure hydraulics in industrial and mobile machinery due to their long service life and higher performance. With nominal pressures of 350 bar and peak pressures of up to 400 bar, Rexroth A8VO series is available in sizes ranging from 55 to 200 and supports direct attachment on diesel engine flywheel housings.

These pump features numerous features such as one common suction port for auxiliary pump and both circuits, individual power controller, integrated auxiliary pump with pressure-relief valve, Excellent power to weight ratio and many others.

Technical Specifications

Technical Data

Variation: with integrated auxiliary pump, F00, F-⁴⁾
Size			55	80	107	140	200
Displacement	V_{g max}	cm³	2 × 54.8	2 × 80	2 × 107	2 × 140	2 × 200
Displacement cm³	V_{g min}	cm³	0	0	0	0	0
Gear ratio i = _{rotary groups}			1.0	1.0	1.0	1.0	1.0
Input speed at V_{g max} n_max1 rpm			2500	2240	2150	2100	1950
Input speed at V_{g ≤ V_{g min}}	n_max2	rpm	3000	2750	2450	2450	2250
Flow at n_max and V_{g max}	q_{v max}	L/min	2 × 137	2 × 179	2 × 230	2 × 294	2 × 390
Power at n_max, V_{g max} and Δp = 350 bar	P_max	kW	160	209	268	294³⁾	325³⁾
Input torque at V_{g max} and Δp = 350 bar	T_max	Nm	611	891	1192	1337³⁾	1592³⁾
Rotary stiffness (single rotary group)⁵⁾	CTW	Nm/rad	11213	17985	25565	41408	39505
0.5 V_{g max} to 0 (interpolated)	CTW	Nm/rad	41442	67666	89381	146677	156876
Moment of inertia for rotary group with power take-off, without attachment pump	J_TW	kgm²	0.0161	0.0209	0.0345	0.0581	0.0849
without power take-off (PTO)			0.0126	0.0173	0.0288	0.0500	0.0750
Angular acceleration (single rotary group)⁵⁾	α	rad/s²	25800	21800	17100	7500	11000
Mass approx.	m	kg	82	90	116	146	180
Displacement with integrated auxiliary pump	V_{g max}	cm³	8.6	8.6	8.6 (10.7)⁴⁾	10.7	11 (19.4)⁴⁾
Effective displacement	V_{g max}	cm³	9.7	9.7	11 (13.7)	12.7	13.6 (23.6)
Gear ratio i = n_input/n_{aux. pump}			0.887	0.887	0.780	0.843	0.804
Variation: with power take-offs, K., F.
Max. torque at PTO	T_max	Nm	250	330	380	450	650
Gear ratio i = n_input/n_PTO			1.0	1.0	1.0	1.0	0.804

Product Models

Model Code

Material number	Designation
R902000084	AXIAL-PISTON PUMP A8VO107LA1KH1/60R1-NSG05K04
R902000085	AXIAL-PISTON PUMP A8VO107LA1KH1/60R1+ZP2PRO29
R902000136	AXIAL-PISTON PUMP A8VO55LRGCH2/60R1+A10VO28DFLR/31R
R902000137	AXIAL-PISTON PUMP A8VO55LRGCH2/60R1-NZG05K02
R902000138	AXIAL-PISTON PUMP A8VO107LG1H2/60R1-NZG05K01
R902000170	AXIAL-PISTON PUMP A8VO107LA1KH1/60R1+ZP2PRO29
R902000183	AXIAL-PISTON PUMP A8VO107LG1DS/60R1+A4FO40/31
R902000246	AXIAL-PISTON PUMP A8VO55SRC/60R1+A10VO45DFLR/31R
R902000247	AXIAL-PISTON PUMP A8VO55SRC/60R1-NZG05K04
R902000255	AXIAL-PISTON PUMP A8VO107LA1KH1/60R1-NSG05K04