Ningbo Helm Tower Noda Hydraulic Co.,Ltd
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Excavator Hydraulic Pump Repair Kit High Power Density High Hardness
Features:
Rexroth A6VM hydraulic piston motor and parts
Large control range with hydrostatic transmission
Cost-saving due to the possibility of using smaller pumps
High efficient
Due to the elimincetion of gear shifts, and the possibility of using smaller pumps, the product is cost saving. Meanwhile , it offers high power density, high efficiency, good starting performance, and low moment of interia. The variable displacement motor additionally has high axial loading capacity.
Displacement diagram:
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| 28 | 55 | 80 | 107 | 160 | 225 | 250 | 468 | |||
| Displacement | Vgmax | ml/r | 28.1 | 54.8 | 80 | 107 | 160 | 225 | 250 | 468 | |||
| Vgmin | ml/r | 8.1 | 15.8 | 23 | 30.8 | 46 | 64.8 | 0 | 135 | ||||
| Max.Permissible.Swept volome | Qgmax | L/min | 133 | 206 | 268 | 321 | 424 | 530 | 590 | 889 | |||
| Max.speed(at Qmax) | nmax at Vgmax | r/min | 4750 | 3750 | 3350 | 3000 | 2650 | 2360 | 2360 | 1900 | |||
| nmax at Vg<Vgmax | r/min | 6250 | 5000 | 4500 | 4000 | 3500 | 3100 | 3100 | 2500 | ||||
| Torque constants | Max at Vgmax | Nm/MPa | 4.463 | 8.701 | 12.75 | 16.97 | 25.41 | 35.71 | 39.79 | 74.41 | |||
| Max at Vgmin | Nm/MPa | 1.285 | 2.511 | 3.73 | 4.9 | 7.35 | 10.3 | 11.46 | 21.47 | ||||
| Max.torque(p=35Mpa) | Mmax at Vgmax | Nm | 156 | 304 | 446 | 594 | 889 | 1250 | 1391 | 2604 | |||
| Mmax at Vgmin | Nm | 45 | 8 | 130 | 171 | 257 | 360 | 401 | 751 | ||||
| Max.output power(at 35Mpa and Qmax | KW | 78 | 120 | 156 | 187 | 247 | 309 | 335 | 519 | ||||
| Moment | Kgm2 | 0.0017 | 0.0052 | 0.0109 | 0.0167 | 0.0322 | 0.0532 | 0.0532 | 0.025 | ||||
| Weight | kg | 18 | 27 | 39 | 52 | 74 | 103 | 103 | 223 | ||||
Our Pumps and motors are mainly used for construction machinery, geological drilling equipment, special vehicles,mining machinery, lifting and transporting equipment, cranes, ship machinery, agricultural and forestry machinery, and so on.