Hydraulic Pump for Excavators A6VM80 series
Technical requirement
-Inject 46#hydraulic oil and confirm with the oillevel gaugeafter installingthe motor;
-Except for the parts marked with dashed lines,the remaining parts should be painted;
-The testingprogram of assembly products:
1)Sealing test:conduct a gas tightness test after sealing,and the test time should exceed 3 minutes at 0.2Mpaatmospheric pressure;
2)Operation:The overall deviation of the small gear should be within 0.5mm;
-Spray Motor paint
1)Condition:one layer
2)Thickness:over 30um
3)Color:Gray
4)Material:polyurethane resin
-Please review the test specificatons
| Model number | A6VM80HA1/63w-VAB380A-SK |
| Maximum output volume | 80ml/r |
| Set minimum output volume | 30.2ml/r(adjustable) |
| Rotationdirection | Tw-way |
| Rotary speed | Rated speed:3900rpm |
| Maximum speed:6150rpm | |
| System allowable pressure | Rated pressure:400bar |
| Maximum pressure:450bar | |
| Housing pressure | Rated:3bar Peak value:5bar |
| Control mode | HA1 and automatic control related to high voltage |
| Mountingflange | SAE flange,seam allowance:140mm,Installation holes 4-13.5,Installation hole pitch circle 180mm |
| Output shaft | W35×2×16×9g DIN5480 |
| Main oil port | DN25;M12×1.75 ;SAEJ5181,oilports A and B are located behind the rear |
| Housing oil drain port | G1/2 |
| Testing port of system pressure | M18×1.5 |
| Oil port of synchronous control | M14×1.5 |
| Attachment valve group | BVD20F27S Balancevalve |

The A6VM80 series is an axial piston variable motor designed for hydrostatic transmission in open and closed circuits. With displacement ranging from 28 to 1000 ml/r, it operates at nominal pressures up to 450 bar (for sizes 28-200) and 400 bar (for sizes 250-1000). Key features include:
Infinite displacement adjustment (0 to Vgmax) via swashplate design
Dual control options: HD (hydraulic proportional control) for precise flow regulation and HZ (two-point hydraulic control) for fixed displacement switching
Applications: Primary pumps for wheel loaders, crawler crane travel drives, and other heavy machinery