Introduction
The Oilgear Company, a global supplier of hydraulic drives and electronic control systems, offers advanced engineering solutions for industries requiring high machine performance and reliability. Established in 1921, Oilgear provides engineered solutions worldwide.

Transfer Barrier* Pump Overview
A Transfer Barrier* pump utilizes fluid-powered pistons driven by oil cylinders, allowing variable control of volume or pressure and improved efficiency compared to mechanical fixed pumps.

Advantages of Transfer Barrier* Pumps

• Variable flow system for speed and pressure control.
• Compatible with aggressive fluids like HWBF, pure water, and Skydrol.
• Modular design for flexible configuration.
• Approximately 15% reduction in power consumption.
• Eliminates the need for accumulators by direct pumping to cylinders.
• High pressures up to 650 bar/9,430 psi.
• No output ripple, reducing the need for pulsation dampeners.
• Lower maintenance costs due to slower ram speeds.

Performance Comparison
Compared to triplex pumps, Transfer Barrier* pumps operate at slower speeds (0.25 m/sec vs. 2.5 m/sec) and have longer cycle times (8 sec vs. 0.2 sec), resulting in reduced wear on seals.

Systems Approach
Oilgear provides a complete Transfer Barrier* pump system, including hydraulic drives, pumps, compatible outlet valving, electronic controls, and documentation.

Model Specifications
Models range from TB 05 to TB 12, with input power from 500 KW to 1260 KW and maximum pressures up to 650 bar/9430 psi available upon request.

Applications

• Forging - Open and closed die
• Descaling systems
• Extrusion with water/high water base fluids
• Test stands for special fluids and high pressure

Global Service Network
Oilgear offers a global service network with regional sales and service centers in over 50 countries, providing fast and efficient support. Custom-designed preventative maintenance programs are available to enhance machine reliability.