Oilgear D-811 Legacy Variable Displacement Hydraulic Pump

Oilgear D-811 Legacy Variable Displacement Hydraulic Pump is an established product in applications that require consistent performance, precise speed control, and reliable operation in continuous industrial service. The two-way variable pump is part of the Oilgear D Series and has earned its reputation as a reliable workhorse in processing machines and heavy-duty hydraulic systems over many years of service. The heavy-duty nature of the pump and its proven designs make it suitable for operating in environments that require stability and precision in operations.

The legacy pump features an open-loop hydraulic circuit, and it reacts instantly to either electric hand servos or fixed speed position controls. This fast-acting feature enables perfect flow transitions and speed regulation, as well as controlled pressure, without consuming surplus power. The variable displacement action also guarantees the use of power whenever it is needed, hence fewer heats are produced in the system, resulting in an efficient process. The pump adjusts accordingly whenever changes occur in the fluid resistance within the system to ensure constant performance without throttling and flow restrictions.

Oilgear D-811 features a positive variable delivery radial rolling piston design. It is able to handle high pressure yet still have long-lasting components. The design of the pump is engineered to reduce internal stresses. It is therefore able to work adequately even under long cycle times. The design of the pump eliminates the need to use a multitude of directional valves to control flow. Such aspects help reduce the complexities associated with the setup. Piping is also reduced.

In real-life applications, the D-811 Legacy Pump features smooth reversal and the ability to vary the flow infinitely. This capability helps to ensure accuracy-based applications. Even though Oilgear has developed newer PVV pumps for newer applications, the D-811 Legacy Pump remains a reliable model for upgrading applications where consistency and compatibility are necessary. This model helps to ensure steady hydraulic power.