Edwards nES300 / nES300S Single Stage Rotary Vane Vacuum Pump (Oil Sealed)
Edwards nES300 and nES300S are high-capacity oil-sealed single stage rotary vane vacuum pumps designed for demanding industrial and process vacuum applications requiring high pumping speed and reliable rough vacuum performance.
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Description
Product Overview
The Edwards nES300 and nES300S Single Stage Rotary Vane Vacuum Pumps are high-capacity oil-sealed mechanical vacuum pumps engineered for demanding industrial and process vacuum applications. Built on proven rotary vane technology, these models deliver high pumping speeds and stable rough vacuum performance for large vacuum systems.
The oil-sealed design provides effective internal sealing, lubrication, and heat dissipation, ensuring consistent vacuum levels and long service life under continuous duty conditions. The nES300 and nES300S share the same core mechanical platform, with performance variations to suit different application requirements. These pumps are commonly used as standalone vacuum pumps or as backing pumps for diffusion and turbomolecular vacuum systems.
Product images are representative. Actual model appearance may vary based on configuration.
Key Features
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Single stage oil-sealed rotary vane vacuum pump
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High pumping speed for large and demanding vacuum systems
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Proven rotary vane technology for extended service life
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Robust industrial construction
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Stable, low-vibration operation
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Designed for continuous duty operation
Technical Specifications
| Parameter | nES300 | nES300S |
|---|---|---|
| Pump Type | Single Stage Rotary Vane (Oil Sealed) | Single Stage Rotary Vane (Oil Sealed) |
| Maximum Displacement (50 Hz) | 280 m³/h | 330 m³/h |
| Maximum Displacement (60 Hz) | 340 m³/h | 385 m³/h |
| Pumping Speed (50 Hz) | 240 m³/h | 284 m³/h |
| Pumping Speed (60 Hz) | 290 m³/h | 330 m³/h |
| Ultimate Vacuum (without gas ballast) | 0.08 mbar | 0.08 mbar |
| Ultimate Vacuum (with gas ballast) | 0.7 mbar | 0.7 mbar |
| Inlet Connection | ISO 63-F / G2 | ISO 63-F / G2 |
| Outlet Connection | ISO 63-F / G2 | ISO 63-F / G2 |
| Motor Rated Power (50 Hz) | 5.5 kW | 6.0 kW |
| Motor Protection | IP55 | IP55 |
| Cooling | Air-cooled | Air-cooled |
| Noise Level (50 Hz) | 72 dB(A) | 72 dB(A) |
| Oil Refill Capacity | 8.5 – 11.5 litres | 8.5 – 11.5 litres |
| Recommended Oil | ULTRAGRADE Performance 70 / Endurance Extend 110 | Same |
Applications
Suitable for use in a wide range of vacuum systems, including:
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Research & Development
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Semiconductor processing
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Aerospace and space simulation systems
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PVD / CVD coating systems
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Chemical and process vacuum setups
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Industrial vacuum pipelines
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Pharmaceutical and laboratory vacuum systems
Actual usage and configuration depend on process and system requirements.
Why Buy from Ultrahivac
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Reliable industrial-grade Edwards vacuum pumps
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Technical support for pump selection and system integration
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Support for vacuum pump oils, spares, and accessories
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Trusted supplier for research, semiconductor, and industrial vacuum users
FAQs
What is the difference between nES300 and nES300S?
The nES300S offers higher pumping speed compared to the nES300 while sharing the same mechanical platform and oil-sealed rotary vane technology.
Are both models suitable for continuous operation?
Yes, both nES300 and nES300S are designed for continuous duty industrial operation.
Can these pumps be used as backing pumps?
Yes, both models are commonly used as backing pumps for diffusion and turbomolecular vacuum systems.
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