The CBZ2 series high-pressure gear pump was designed by the Tianjin Engineering Machinery Research Institute and jointly developed by our company. It is a new type of externally meshing high-pressure gear pump with a unique structure. (Chinese invention application number: 85100742.2) Due to the adoption of axial compensation and radial tracking compensation, the high-pressure area is reduced and the radial force is decreased, thus improving the service life. It features an advanced structure, rationality, good performance, high efficiency and stable and reliable operation. At the same time, the CMZ2 series gear motor has been derived. It is widely used in hydraulic devices of engineering machinery, lifting and transportation, and underground mining machinery, serving as the hydraulic power mechanism.