OEM Rexroth A8V0/A8VO140 Plunger Pump
OEM Rexroth A8V0/A8VO140 Plunger Pump
Product Description:
Piston pump is a positive displacement pump and a reciprocating pump. The piston pump causes the fluid medium to work through the pressure difference generated by the reciprocating motion of the piston in the piston cylinder, resulting in changes in the seal volume in the piston cylinder. By changing the working stroke of the piston, the flow rate of the piston pump can be controlled.
Applications:
Piston is an important piece of equipment in the hydraulic system. It relies on the reciprocating movement of the piston in the cylinder to change the volume of the sealing chamber to complete the oil absorption and compression. Piston pumps have the advantages of high additional pressure, compact structure, high efficiency and convenient flow adjustment, and are widely used in situations where high pressure, large flow and flow adjustment are required, such as hydraulic machinery, engineering machinery and ships.
Technical Parameters:
| Size | A11VO | 40 | 60 | 75 | 95 | 130 | 145 | 190 | 260 | |
| Displacement | Vg max | cm3 | 42 | 58.5 | 74 | 93.5 | 130 | 145 | 193 | 260 |
| Vamin | cma | O | O | O | O | O | O | O | O | |
| Speed maximum at V Vamat 1) maximum at Vg SVomas 3) |
nlemas | rpm | 3000 | 2700 | 2550 | 2350 | 2100 | 2200 | 2100 | 1800 |
| nlmax1 | rpm | 3500 | 3250 | 3000 | 2780 | 2500 | 2500 | 2100 | 2300 | |
| Fow at nma,and Vg |
qv max | IVmin | 126 | 158 | 189 | 220 | 273 | 319 | 405 | 468 |
| Power at qvmw and Ap = 350 bar |
Pman | kW | 74 | 92 | 110 | 128 | 159 | 186 | 236 | 273 |
| Torque at Vgmas and Ap =350 bar |
Tman | Nm | 234 | 326 | 412 | 521 | 724 | 808 | 1075 | 1448 |
| Rotary stiffness | Z shaft | Nm/rad | 88894 | 102440 | 145836 | 199601 | 302495 | 302495 | 346190 | 686465 |
| P shaft | Nm/rad | 87467 | 107888 | 143104 | 196435 | 312403 | 312403 | 383292 | 653835 | |
| S shaft | Nm/rad | 58347 | 86308 | 101921 | 173704 | 236861 | 236861 | 259773 | 352009 | |
| T shaft | Nm/rad | 74476 | 102440 | 125603 | 301928 | 567115 | ||||
| Moment of inertia for rotary group |
JTW | kgm? | 0.0048 | 0.0082 | 0.0115 | 0.0173 | 0.0318 | 0.0341 | 0.055 | 0.0878 |
| Angular acceleration, max. 4) | rad/s2 | 22000 | 17500 | 15000 | 13000 | 10500 | 9000 | 6800 | 4800 | |
| Filling capacity | V | 1 | 1.1 | 1.35 | 1.85 | 2.1 | 2.9 | 2.9 | 3.8 | 4.6 |
| Mass (approx.) | m | kg | 32 | 40 | 45 | 53 | 66 | 76 | 95 | 125 |
Support and Services:
1. Hydraulic parts are packed in cartons, or in wooden cases if the quantity is large.
2. Hydraulic pump or motor or gearbox or transmission or reducer assembly package, with wooden case.
3. All products packages are standard packages and have strong sea/air transportation capabilities.
4. Air freight or international express or sea freight to meet your needs.
Installation method of copper sleeve
If the plunger pump cylinder is inlaid with copper sleeves, it can be installed by replacing the copper sleeves. First, trim the outer diameter of a group of plunger rods to a uniform size, and then polish the outer diameter with sandpaper above 1000
Three methods for installing copper sleeves on the cylinder:
(a) hot installation of the cylinder or low-temperature freezing and extrusion of the copper sleeve, interference assembly;
(b) assembly with Loctite adhesive, this method requires grooves on the outer diameter surface of the copper sleeve;
(c) tapping the cylinder hole, machining threads on the outer diameter of the copper sleeve, applying Loctite adhesive, and screwing it in for assembly.
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