The inner core of a hydraulic log splitter pump is made up of several components that work together to create hydraulic pressure. Here are the key components:

Pump Housing: This is the outer casing of the pump that holds all the other components together.

Drive Shaft: This is a metal rod that connects to the engine or motor of the log splitter and spins the pump.

Piston: The piston is a cylindrical component that moves up and down inside the pump housing to create pressure.

Cylinder: The cylinder is a hollow tube that contains the piston and allows it to move up and down.

Inlet and Outlet Valves: These are one-way valves that control the flow of hydraulic fluid into and out of the pump. The inlet valve allows fluid to enter the cylinder and the outlet valve allows fluid to exit the cylinder.

Hydraulic Fluid: This is the fluid that fills the cylinder and creates pressure when the piston moves up and down.

When the log splitter's engine or motor drives the pump's drive shaft, the piston moves up and down inside the cylinder. As the piston moves down, it creates a vacuum that draws hydraulic fluid into the cylinder through the inlet valve. As the piston moves up, it compresses the hydraulic fluid, which increases the pressure and forces the fluid out of the cylinder through the outlet valve. This high-pressure fluid then powers the log splitter's hydraulic cylinder, which drives the splitting wedge through the log.