CASAPPA original DVP14-04S5 E302.5 Excavator Hydraulic Pump Rebuild Service

The hydraulic pump is a critical component in excavators, responsible for converting mechanical energy into hydraulic energy. It supplies high-pressure hydraulic oil to various actuators (such as hydraulic cylinders and motors), enabling smooth and efficient operation of the excavator. High-quality hydraulic pumps ensure durability, energy efficiency, and precise control, making them essential for construction, mining, and other heavy-duty applications.

Look to axial piston pumps. These are the high-performance champions found in most modern mid-sized to large excavators. Instead of gears, they use pistons arranged in a cylinder block. As the block rotates against a tilted swashplate, the pistons reciprocate – sucking in fluid on the intake stroke and forcing it out under high pressure on the discharge stroke. The genius lies in the adjustable swashplate angle. Changing this angle instantly changes the piston stroke length, which directly controls the pump's output flow – even while the engine speed stays constant! This "variable displacement" capability is revolutionary. It means your excavator can deliver just the right amount of hydraulic power needed for delicate grading or precise positioning, then instantly ramp up to full flow and pressure for hard digging or lifting, all without wasting engine power or fuel. This translates to smoother operation, finer operator control, significantly better fuel economy, and the ability to handle the toughest jobs efficiently.

GUANGZHOU BELPARTS ENGINEERING MACHINERY LIMITED founded in September 2013, loed in the engineering machinery market in Guangzhou, China. At present , we have one shop, one warehouse and one office as well as a professional team for purchasing, selling, packing, shipping and after-sale service.

Our main products are Excavator Hydraulic spare parts, Hydraulic pump, Swing motor, Travel motor, Final drive, Swing gearbox, Travel gearbox, Control valve,Monitor,Controller, Hydraulic cylinder and other hydraulic items with genuine and aftermarket quality. Until now, our products enjoy high reputation all over the world and have been exported to more than 150 countries and regions, spreading all over the Middle East, Southeast Asia, Africa, North America, South America, Europe and Oceania with its own brand "Belparts" are widely acclaimed by foreign customers.

In February 2023, Belparts Yunnan Tourism Team Building

In April 2024, Belparts participated in the Brazil Construction Machinery Exhibition and visited local clients in Brazil.

In April 2024, Belparts participated in the French Construction Machinery Exhibition and visited clients in France and Spain

In May 2024, Belparts Travel Thailand