Oilgear D-1225 Legacy Variable Displacement Pump

Oilgear D-1225 Legacy Variable Displacement Pump is a compact yet highly capable hydraulic pump designed for applications requiring precise speed control, consistent pressure response, and long-term reliability. Part of Oilgear’s legendary D Series, this model carries forward decades of proven performance in demanding industrial environments. The two-way, variable displacement design enables the pump to provide flow only when it is needed, resulting in outstanding efficiency and responsiveness in open-loop hydraulic systems.

Engineered to handle continuous industrial duty with minimum loss of energy, the D-1225 is a multiple radial rolling piston configuration. The pump instantly responds to electric hand servos or preset speed position controls to give operators smooth and accurate machine motions. This capability makes the D-1225 especially useful in processing machines that must have controlled acceleration, deceleration, and flow reversal.

Oilgear D-1225 features excellent control of hydraulic output with a maximum displacement of 36.65 cc/rev and stable pressure characteristics. The pump operates at speeds up to 1800 RPM and guarantees its performance with a maximum continuous pressure of 3000 psi for high-load conditions. Displacement adjustment according to the requirement of the system minimizes unnecessary power consumption, generated heat, and wear of hydraulic parts.

The major benefit of D-1225 variable displacement pumps can be seen in the fact that it helps to simplify the design of the hydraulic circuit. Since the advent of the D-1225 variable displacement pumps, the Hydraulic Institute has introduced several variations that incorporate higher pressure relief valves and various control options that can work in cooperation with the pintle check-type suction and return valves offered by Oilgear to provide greater stability for the two-way circuits, whether it be differential or non-differential.

The D-1225 can easily find use in the field of metal forming as well as machine tools and the processing of plastic materials. This valve is resistant to damage from the environment it will function in. Due to the efficiency of the D-1225 valve, it will reduce the operating costs of the application it will be used in.