Edwards / Seiko Seiki STP-600 Turbomolecular Pump

The Edwards / Seiko Seiki STP-600 (P/N: CO28535) is an ultra-clean, high-performance 650 L/s magnetically levitated turbomolecular vacuum pump. Originally engineered under the legacy Seiko Seiki brand architecture, this high-vacuum workhorse remains a staple in advanced laboratories, university physics departments, and thin-film R&D facilities worldwide due to its rugged dependability and contact-free bearing mechanics.

Utilizing an advanced 5-axis magnetic levitation system, the rotor is completely suspended in a magnetic field during operation. This design entirely eliminates the need for mechanical lubricating oils or greases, ensuring a 100% hydrocarbon-free, ultra-pure vacuum environment with absolutely zero risk of backstreaming contamination. The contact-free suspension also drastically reduces acoustic and mechanical vibration, making it ideal for vibration-sensitive instruments, mass spectrometry, and electron microscopy.

Key Features

• Maintenance-Free Magnetic Bearings: Eliminates routine bearing changes and oil refills, lowering long-term operating costs.

• Omnidirectional Mounting: The contact-free mag-lev suspension allows the pump to be mounted and operated in any physical orientation.

• Ultra-Clean Vacuum Profile: Absolute oil-free operation preserves high-purity vacuum environments from molecular contamination.

• Fail-Safe Mechanical Backups: Features emergency precision mechanical touch-down bearings to safely catch and protect the rotor array in the event of an abrupt laboratory power failure or sudden atmospheric line breach.

Technical Specifications