Whether the hydraulic pump requires variables: radial piston pumps, axial piston pumps, single-acting vane pumps are variable pumps.
Hydraulic pump working pressure: plunger pump pressure 31.5MPa; The pressure of the vane pump is 6.3MPa, and it can reach 21MPa after high pressure; The gear pump pressure is 2.5MPa, and it can reach 25MPa after high pressure.
Hydraulic pump noise index: low-noise pump has internal meshing gear pump, double-acting vane pump and screw pump, double-acting vane pump and screw pump instantaneous flow uniformity.
Hydraulic pump efficiency: axial piston pump has the highest overall efficiency; Pumps of the same structure, the total number of pumps with large displacement is highly efficient.
