Rexroth Pump
Rexroth Axial Piston Fixed Pump A4FO
  • Description
  • Technique Feature
  • Specification
  • Applied Range

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Data Sheet of REXROTH A4FO

REXROTH Type Code of A4FO Series

 

 

Description

Project planning notes

▶ The A4FO pump is designed to be used in open circuits.

▶ Project planning, installation and commissioning of the axial piston units requires the involvement of skilled personnel.

▶ Before using the axial piston unit, please read the corresponding instruction manual thoroughly and completely. If necessary, request them from Bosch Rexroth.

▶ Before finalizing your design, request a binding installation drawing.

▶ The specified data and notes must be observed.

▶ Depending on the operating condition of the axial piston unit (working pressure, fluid temperature), the characteristic may shift.

▶ Not all versions of the product are approved for use in a safety function pursuant to ISO 13849. Please consult the responsible contact person at Bosch Rexroth if you require reliability parameters (e.g. MTTFd) for functional safety.

▶ Working ports:

– The ports and fastening threads are designed for the specified maximum pressure. The machine or system manufacturer must ensure that the connecting elements and lines correspond to the specified operating conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors.

– The working ports and function ports can only be used to accommodate hydraulic lines.

 

Technical data

Size 22 28 71 125 180 250 500 250 500
Version Standard High speed
Displacement   Vg cm³ 22 28 71 125 180 250 500 250 500
geometric, per revolution
Nominal pressure   pnom bar 400 400 350 350 350 350 350 350 350
Maximum pressure   pmax bar 450 450 400 400 450 400 400 400 400
Maximum speed 1)   nnom rpm 3600 3000 2200 1800 1800 1500 1320 1900 1500
Flow at nnom qV l/min 79 84 156 225 324 375 660 475 750
Power at nnomand pnom P kW 53 56 91 131 189 219 385 277 438
Torque at pnom M Nm 140 178 396 696 1003 1393 2785 1393 2785
Weight (approx.)   m kg 13.5 13.5 34 61 76 120 220 120 220
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

Features

- Through drive for mounting of further pumps up to same nominal size

- Low noise

- Very long service life at high pressures

- Excellent suction characteristics

- Working ports SAE flange

- High total efficiency

- Swashplate design

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