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ULVAC GHD Series Magnetically Coupled Oil Rotary Vane Vacuum Pump

The ULVAC GHD Series is a magnetically coupled two-stage oil rotary vane vacuum pump developed for laboratories, analytical instruments, and OEM equipment manufacturers. Thanks to its non-contact magnetic coupling technology, power is transmitted between the motor and the pump without the use of a mechanical shaft seal, completely eliminating the risk of oil leakage from the shaft seal. With its compact design, low noise level, and high vacuum performance, it provides a reliable and long-lasting vacuum solution.

Key Features

• Non-contact power transmission with magnetic coupling technology that prevents oil leakage
• High vacuum performance with a two-stage rotary vane design
• Compact design for easy integration into equipment and systems
• Anti-suckback valve that prevents contamination of the vacuum chamber with oil
• Stable pumping performance through a forced lubrication system
• Quiet operation with low noise and low vibration
• Direct start-up from atmospheric pressure
• Easy maintenance and long service life

Application Areas

GHD Series vacuum pumps are preferred in a wide range of laboratory and industrial applications requiring precise and reliable vacuum:

• Analytical instruments
• Laboratory and research equipment
• Electron microscope systems
• XRD and XRF analytical instruments
• Helium leak testing systems
• Backing pump applications for turbomolecular pumps
• Vacuum coating systems
• OEM machinery and equipment manufacturers
• General industrial vacuum applications

Technical Advantages

The GHD Series offers solutions for different capacity requirements with the GHD-031A and GHD-101A models. With pumping capacities ranging from approximately 30 L/min to 120 L/min, the series stands out with its ultimate pressure of up to 0.67 Pa, low noise level, and magnetic coupling technology. Thanks to its oil leak-free design, anti-suckback system, forced lubrication mechanism, and compact construction, it delivers reliable and long-lasting performance across a wide range of applications, from laboratories to advanced analytical systems.