Rexroth A4FO Fixed Displacement Axial Piston Pump/Motor 28-500 cm³ 400 Bar for Hydraulic Systems
Price:
$1025-$4999
MOQ:
1PC
Delivery Time:
2-5Day
Brand:
OUSTER
Product Description
Product Overview
Rexroth A4FO series represents high-performance fixed displacement axial piston units designed for both pump and motor applications in industrial and mobile hydraulics.
Key Features and Benefits
- Dual Functionality: Can operate as either a hydraulic pump or motor, providing design flexibility
- High Power Density: Compact design delivers maximum performance in minimal space
- Excellent Efficiency: Optimized hydraulics ensure high volumetric and mechanical efficiency
- Robust Construction: Heavy-duty bearings and hardened components ensure long service life
- Multiple Configurations: Available in various displacements, shaft types, and porting options
Technical Specifications
| Parameter | Specification |
|---|---|
| Series | A4FO |
| Type | Fixed Displacement, Axial Piston Unit (Pump/Motor) |
| Displacement Range | 28 cm³/rev to 500 cm³/rev |
| Maximum Pressure (Pump) | 400 bar (5,800 psi) continuous |
| Maximum Pressure (Motor) | 450 bar (6,500 psi) intermittent |
| Speed Range | Up to 3,600 rpm (depending on size) |
| Efficiency | >95% volumetric efficiency |
| Mounting | Standard SAE and ISO flange mounts |
| Shaft Options | Splined, keyed, or tapered shaft ends |
Working Principle
The A4FO operates on the bent-axis principle. The cylinder block and drive shaft are connected at a fixed angle, causing the pistons to reciprocate as the unit rotates. This fixed geometry creates a constant displacement per revolution. When used as a pump, mechanical energy is converted to hydraulic power.
Applications
As Hydraulic Pump:
- Industrial hydraulic power units
- Machine tool hydraulics
- Press and injection molding machines
- Mobile equipment hydraulic systems
As Hydraulic Motor:
- Winch and hoist drives
- Conveyor systems
- Mixer and agitator drives
- Wheel drives for mobile equipment
- Fan and pump drives
Configuration Options
- Rotation: Clockwise or counter-clockwise rotation available
- Porting: Various port connection styles and positions
- Shaft Types: SAE splined, DIN splined, parallel key, or tapered shafts
- Drain Connections: Multiple drain port options for flexible installation
- Mounting Flanges: Standard SAE and ISO mounting patterns
Selection Guide
Choose the right A4FO unit by considering application type, displacement requirements, pressure needs, speed range, shaft requirements, and mounting configuration. Contact our hydraulic experts for application-specific recommendations.
Frequently Asked Questions
Q: Can A4FO units be used as both pump and motor?
A: Yes, the A4FO is designed to operate efficiently as either a hydraulic pump or motor, providing excellent flexibility in system design.
A: Yes, the A4FO is designed to operate efficiently as either a hydraulic pump or motor, providing excellent flexibility in system design.
Q: What is the maximum speed for A4FO units?
A: Maximum speed depends on displacement size, ranging from 1,800 rpm for larger units (500 cm³) to 3,600 rpm for smaller units (28 cm³).
A: Maximum speed depends on displacement size, ranging from 1,800 rpm for larger units (500 cm³) to 3,600 rpm for smaller units (28 cm³).
Available Models
| Part Number | Model |
|---|---|
| R902039558 | A4FO40/32L-NTC12K01 |
| R902039557 | A4FO40/32R-NTC12K01 |
| R902231380 | A4FO40/32R-NTC12K01-S |
| R902239833 | A4FO40/32R-NTC12K01-S |
| R902227660 | A4FO40/32R-NTC12K01-S |
| R902105159 | A4FO40/32R-NTC12K02 |
| R902094020 | A4FO40/32R-NTC12N00-S |
Additional model numbers available upon request.
Product Images
Manufacturer Information
QUZHOU OUSTER HYDRAULIC Co., Ltd, founded in 2015 with more than 13 years export experience, specializes in procuring and selling hydraulic pumps and hydraulic pump parts. Our main products include hydraulic pumps, hydraulic pump parts, hydraulic motors, gearboxes, and hydraulic valves. Our products have been exported to more than 68 countries worldwide.
Manufacturing Facility
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
QUZHOU OUSTER HYDRAULIC CO.,LTD
Location
No. 128, Gaoxin Road, Nianli Town, Qujiang District, Quzhou City, Zhejiang Province, China.
Contact Person
SONG