Edwards STP-300C Turbomolecular Pump

The Edwards STP-300C (originally engineered by Seiko Seiki) is a highly reliable, compact magnetically levitated turbomolecular vacuum pump designed for advanced industrial manufacturing and precision laboratory instrumentation. Delivering a clean pumping speed of $300\text{ L/sec}$ (N2), this pump features a 5-axis magnetic bearing system that completely eliminates physical contact, mechanical wear, and the need for oil lubrication.

Operating at a high rotational speed of $55,000\text{ RPM}$, the STP-300C provides a completely hydrocarbon-free ultra-high vacuum environment. Its magnetic suspension design provides extraordinary resistance to unexpected atmospheric shock, minimizes vibration transmission to sensitive analytical systems, and dramatically lowers the lifetime cost of ownership.

Technical Specifications

Key Features & Benefits

• Hydrocarbon-Free Vacuum: Complete absence of lubricating oils ensures a pure high-vacuum stream, preventing downline chamber or sensor contamination.

• Low Noise & Low Vibration: The frictionless 5-axis magnetic suspension isolates structural harmonics, making it optimal for electron microscopes, mass spectrometers, and surface analysis tools.

• Long Operating Lifespan: Contact-free operation reduces standard mechanical component degradation, yielding an exceptional operational lifetime between required service intervals.

• Harsh Process Tolerance: "C" (Corrosive) designations feature specialized internal nickel plating and purge gas options to defend internal coils and magnets against reactive chemical vapors.