Two Stage Oil Sealed Rotary Vane Vacuum Pump For Molecular Pump
| Product name: | Oil-Lubricated Two-Stage Oil-Sealed Rotary Vane | Max Pumping Speed(60Hz):: | 350 M³/h |
| Ultimate Pressure(Gas Ballast Closed): | 4×10⁻¹ Pa | Motor Power: | 5.5kW / 7.5kW |
| Other service: | OEM, ODM & Customization Available | Warranty period: | 2 Years |
| Inlet Connection: | NW40 | Speed (50/60Hz): | 1440 / 1710 Rpm |
| Noise Level: | 75 DB | Net Weight: | 198~215 Kg |
| High Light: | Molecular Vacuum Pump Two Stage,Rotary Vane Vacuum Pump Oil Seal,Oil Sealed Vacuum Pump Two Stage |
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Industrial Fore Pump Two Stage Oil Sealed Rotary Vane Vacuum Pump For Molecular Pump
Product Overview
The ARD series two-stage oil-sealed rotary vane vacuum pump features a rugged, long-service-life construction. Equipped with an advanced lubrication circuit and heavy-duty accessories, it fulfills most mainstream vacuum application demands. A built-in disposable oil filter and forced oil lubrication system guarantee efficient operation under any inlet pressure. The large oil sight glass allows convenient real-time oil level monitoring to prevent dry running caused by insufficient oil. This pump can run while pumping gas or working in environments with potentially explosive gas. When paired with MH Roots booster pumps, it delivers higher pumping speed and better ultimate vacuum performance.
Key Features and Benefits
- Heavy-duty solid construction for long-term durable operation
- Advanced lubrication circuit + built-in disposable oil filter
- Forced oil lubrication structure, stable performance at varied inlet pressure
- Large sight glass for intuitive oil level inspection, avoid oil shortage operation
- Adaptable for environments with potentially explosive gas
- Can work standalone or combine with Roots pumps for upgraded vacuum performance
- Serves as backing / fore pump for high and ultra-high vacuum systems
Working Principle
It adopts classic two-stage rotary vane oil-sealed compression principle. The rotary vanes slide out under centrifugal force to form sealed chambers. Gas is continuously sucked in, compressed and exhausted. The forced circulating oil provides sealing, lubrication and cooling for the pump chamber. The gas ballast function handles condensable vapors. It can be used as a pre-pump for molecular pumps, diffusion pumps and Roots vacuum systems.
Install size
Technical Specifications
| Item | Unit | ARD175 | ARD275 |
|---|---|---|---|
| Pumping Speed (50Hz) | m³/h (L/s) | 175 (50) | 255 (75) |
| Pumping Speed (60Hz) | m³/h (L/s) | 214 (60) | 350 (97.5) |
| Ultimate Pressure (Gas Ballast Closed) | Pa | 4×10⁻¹ | 4×10⁻¹ |
| Ultimate Pressure (Gas Ballast Open) | Pa | 4 | 4 |
| Oil Capacity | L | 16 / 25 | 18 / 28 |
| Inlet Port | - | SIO-F/NW63 | SIO-F/NW63 |
| Outlet Port | - | NW40 | NW40 |
| Motor Power | kW | 5.5 | 7.5 |
| Rotating Speed (50Hz) | rpm | 1440 | 1440 |
| Rotating Speed (60Hz) | rpm | 1710 | 1710 |
| Noise | dB | 75 | 75 |
| Net Weight | kg | 198 | 215 |
Industrial Applications
Widely used in scientific research, teaching, supporting vacuum equipment, electronics, semiconductor, display production lines, vacuum packaging, vacuum freeze drying, refrigerator & air-conditioner production, light source manufacturing and analytical instruments. It can be used alone or act as fore pump / pre-pump for molecular pumps, diffusion pumps and Roots pumps in high & ultra-high vacuum systems.
Why Choose AIRIPA as Your Vacuum Pump Manufacturer?
AIRIPA is a direct industrial vacuum pump manufacturer integrating R&D, in-house manufacturing, assembly, and factory testing. We provide industrial vacuum solutions and flexible manufacturing services for equipment manufacturers, distributors, and industrial buyers.
Direct Factory Manufacturing
With our own production workshops and assembly lines, AIRIPA offers factory-direct communication, coordinated production support, and efficient technical discussions for industrial vacuum pump projects.
R&D & Engineering Expertise
Our engineering team focuses on industrial vacuum technology, precision engineering, and product optimization, supported by technical collaboration with industry specialists and research teams.
In-House Assembly & Factory Testing
AIRIPA operates its own assembly lines and factory testing equipment, supporting production oversight, quality management, and product performance verification before delivery.
OEM, ODM & Private Labeling Services
We support OEM, ODM, and private labeling services for equipment manufacturers, distributors, and industrial brands, including discussions of product configurations, equipment integration, and branding requirements.
Frequently Asked Questions
- Can this ARD vacuum pump be used in explosive gas environments? Yes, this series is designed for operation where potentially explosive gas may exist.
- Can it connect with a Roots vacuum pump? Yes. Matched with MH Roots booster pump, the assembly achieves higher pumping speed and lower ultimate pressure.
- What is the function of the large oil sight glass? It lets operators check the oil level easily, preventing the pump from running with insufficient oil.
- Can this pump be a backing pump for molecular pumps? Yes, it is commonly used as a fore pump and pre-pump for molecular pumps, diffusion pumps and other high-vacuum equipment.
- What maintenance is needed? Regular vacuum oil replacement and disposable oil filter replacement are required for stable service life.
Request a Quote
ARD175 and ARD275 two models are available for selection. Please contact us to get the full datasheet, quotation and technical support. Email: evelyn@airipa.com
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