Key Features
Swashplate axial piston variable pump for closed circuit hydrostatic transmission
Nominal:400 bar, Peak:450 bar
Integrated charge pump & overload protection valves
Multiple control types: HW, EP, DA, HD3 etc
Through-drive design for tandem pump installation
Infinitely variable flow & smooth bi-directional rotation
Full displacement range: 28~250cc
Direct replacement compatible
For rollers, pavers, loaders, farm machinery
Technical Information
Introduction to Detailed Specifications and Parameters of A4VG Series Axial Piston Pump
| Unit | 28 | 40 | 56 | 63 | 71 | 80 | 90 | 100 | 125 | 135 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Geometric displacement | variable pump, V_gmax | mL/r | 28 | 40 | 56 | 63 | 71 | 80 | 90 | 100 | 125 | 135 |
| boost pump (Δp=20 bar), V_gp | mL/r | 6.1 | 8.6 | 11.6 | 13.8 | 19.6 | 19.6 | 19.6 | 28.3 | 28.3 | 28.3 | |
| Rotational speed | rated speed, n | min⁻¹ | 4250 | 4000 | 3600 | 3600 | 3300 | 3200 | 3050 | 3250 | 2850 | 2800 |
| maximum speed, n_max | min⁻¹ | 4500 | 4200 | 3900 | 3900 | 3300 | 3200 | 3300 | 3250 | 3250 | 3200 | |
| minimum speed, n_min | min⁻¹ | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 | |
| Flow | at n_nom, V_gmax and Δp=0 bar | L/min | 119 | 160 | 202 | — | 234 | — | 275 | — | 356 | — |
| Power | at n_nom, V_gmax and Δp=400 bar | kW | 79 | 107 | 134 | — | 156 | — | 183 | — | 238 | — |
| Torque | at n_nom, V_gmax and Δp=400 bar | Nm | 178 | 255 | 357 | — | 452 | — | 573 | — | 796 | — |
| at n_nom, V_gmax and Δp=100 bar | Nm | 45 | 64 | 89 | — | 113 | — | 143 | — | 199 | — | |
| Case volume | V | L | 0.9 | 1.1 | 1.5 | 1.4 | 1.5 | 1.5 | 1.5 | 1.3 | 2.1 | 1.8 |
| Weight | kg | 29 | 31 | 38 | 38 | 39 | 50 | 50 | 54 | 80 | 82 |
About this supplier
Who do we serve? Taifeng Intelligent supplies hydraulic components and electro-hydraulic integrated control systems to leading manufacturers in machine tools, metallurgy, recycling equipment, construction machinery, mining, rail transit and energy industries.
Our customers include China First Heavy Industries, XCMG, Zoomlion, MCC and other large state-owned enterprises and listed companies — proof of our reliability in demanding applications.
Founded in 2000 in Jining High-tech Zone, Shandong, China, we are the world's largest two-way cartridge valve manufacturer (about 70% domestic market share) and China's largest producer of hydraulic integrated systems. Core products: two-way cartridge valves, piston pumps, multi-way valves, prefill valves and hydraulic cylinders. ISO 9001 certified and an MIIT Single-Item Champion since 2016. Join our satisfied customers worldwide.
