Rexroth A4fo/A4fo22/A4fo28/A4fo45/Ala4fo500/R902437217Hydraulic Plunger Pump Alternative
Product Description:
The total reciprocating stroke L of the plunger pump is constant and is determined by the lift of the cam. The amount of oil supplied by the plunger per cycle depends on the oil supply stroke, which is not controlled by the camshaft and is variable. The start time of oil supply does not change with the change of the oil supply stroke. Rotating the plunger can change the end time of oil supply, thereby changing the amount of oil supply. When the plunger pump is working, the cam on the injection pump camshaft and the plunger spring force the plunger to reciprocate up and down, thereby completing the oil pumping task.
Features:
Design: Compact and robust structure, suitable for high-pressure applications.
Flow Rate: Capable of delivering a flow rate of up to 150 liters per minute, making it efficient for medium to large-scale operations.
Pressure Capability: Designed to handle high pressures , often exceeding 100 bar, ideal for demanding environments.
Materials: Typically constructed from corrosion-resistant materials, ensuring durability and longevity even in harsh conditions.
Piston Mechanism: Utilizes a plunger mechanism for precise control of fluid movement, offering consistent performance.
Versatility: Suitable for a wide range of fluids, including water, chemicals, and viscos liquids.
Technical Parameters:
| Specifications | HLA4VTG90 |
| Variable pump displacement | Vgmax cm3/r 90 |
| Supply pump displacement | Vg Sp cm3/r 19.8 |
| Speed | max rpm 3000 |
| Speed | min rpm 500 |
| Flow | rate when n=nmax L/min 270 |
| Power | when n=nmaxv=Vgmax △P=40MPa KW 180 |
| Case oil filling volume | 1.5L |
Applications:
1. Construction machinery
Used in equipment such as excavators, cranes and bulldozers to provide powerful hydraulic power.
2. Manufacturing industry
Applied in automated production lines, CNC machine tools and industrial robots to provide power for mechanical movement.
3. Shipbuilding industry
In ship hydraulic systems, it drives steering gears, cranes and other hydraulic equipment.
4. Metallurgical industry
Used in steelmaking and casting equipment to support hydraulic operations under high temperature and high pressure environments.
Advantages
1. Axial piston fixed displacement motor with inclined shaft structure, suitable for hydrostatic transmission in open and closed circuits.
2. Suitable for mobile machinery and industrial applications
3. Output speed is related to pump flow and motor displacement
4. Torque increases with the pressure difference between high and low pressure sides and the increase of displacement
5. Carefully select the displacement provided, its specifications can be matched to each actual application
6. High power/weight ratio, compact structure
7. Starting torque, economical design, integrated plunger design with plunger ring
