Rexroth A2FO Axial Piston Fixed Pump – Series 70

Rexroth A2FO Axial Piston Fixed Pump – Series 70

Rexroth A2FO is popular pump with compact high-pressure feature with short installation length. We deal in sales, maintenance and repair services of Rexroth A2FO Axial Piston Fixed Pump – Series 70 including their entire sizes/ models.

Axial Piston Fixed Displacement Pump
Medium Pressure Pump For High Power Machines
Model Sizes : A2FO45, A2FO56, A2FO63, A2FO80, A2FO90, A2FO107, A2FO125.
Nominal Pressure up to 400 Bar
Maximum Pressure up to 450 Bar
All-Purpose High Pressure Pump
Robust Pump with Long Service Life
Bent-Axis Design, For Hydrostatic Drives
Compact High-Pressure Pump with Short Length
For Use In Mobile and Stationary Applications In Open Circuit

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Rexroth A2FO Axial Piston Fixed Pump - Series 70 is specially designed for mobile and industrial applications including excavators, tractors, loaders and hydraulic presses. These pumps are available in compact size and high-pressure, which is perfect for shorter installation space. Rexroth A2FO pumps comes in multiple sizes 45 to 125, with a nominal pressure to 400 bar and maximum pressure to 450 bar.

Rexroth A2FO is a fixed pump for hydrostatic drives in open circuits that has an axially tapered piston rotary group in a bent-axis configuration. Their flow is a function of displacement and drive speed. In bent-axis designed axial piston units, the pistons are positioned with the drive shaft at an angle. These pumps have advance features such as robust 40° bent-axis technology, high power density and compact design.

These pumps are know for multi-purpose, high pressure, robust construction offering a very high total efficiency. Rexroth A2FO has a long service life and low maintenance needs due to their straightforward, robust design, which also produces consistent hydraulic power with a reduced noise level.

Technical Specifications

Specifications

Size				45	56	63	80	90	107	125
Displacement geometric, per revolution		Vg	cm³	44.9	56.6	63.0	79.8	90.5	106.7	125.0
Nominal pressure		pnom	bar	400	400	400	400	400	400	400
Maximum pressure		pmax	bar	450	450	450	450	450	450	450
Maximum speed		nnom 1)	rpm	2240	2000	2000	1800	1800	1600	1600
Maximum speed		nmax 2)	rpm	4250	3750	3750	3350	3350	3000	3000
Flow	at nnom	qV	l/min	101	113	126	144	163	171	200
Power	at nnom and pnom	P	kW	68	75	84	96	108	114	133
Torque 3)	at pnom	M	Nm	286	360	401	508	596	679	796
Rotary stiffness		c	kNm/rad	4.52	6.83	8.09	8.96	9.69	12.59	13.65
Moment of inertia for rotary group		JTW	kg·m²	0.0032	0.0032	0.0032	0.0058	0.0054	0.088	0.091
Maximum angular acceleration		ɑ	rad/s²	14600	7500	7500	6000	6000	4500	4500
Case volume		V	l	0.6	0.6	0.6	0.65	0.65	1.1	1.1
Weight (approx.)		m	kg	17	17	17	23	23	32.8	32.8

1)	These values are valid at: – an absolute pressure of pabs = 1 bar at suction port S – for the optimum viscosity range from vopt = 36 to 16 mm2/s – with hydraulic fluid based on mineral oils
2)	Maximum speed (limiting speed) with increased inlet pressure pabs at suction port S, see the following diagram.
3)	Torque without radial force, with radial force see table “Permissible radial and axial forces of the drive shafts”