EDWARDS A37317984 Rotary Vane Vacuum Pump E2M28

( Brand: Edwards ), ( Manufacturer Part Number: A37317984 ), ( Type: Vacuum )

Review EDWARDS Two stage Rotary Vane Vacuum Pump

The **Edwards A37317984 E2M28 Two-Stage Rotary Vane Vacuum Pump** is a high-performance, oil-sealed rotary vane vacuum pump designed for precision applications requiring reliable and consistent vacuum performance across a wide range of industries. Part of Edwards renowned E2 series, this pump combines robust engineering with advanced features to deliver exceptional efficiency, durability, and ease of maintenance. Engineered with a two-stage compression system, the E2M28 excels at achieving final pressures as low as **1.3 x 10 mbar (10 Pa)**, making it ideal for applications such as semiconductor manufacturing, thin-film deposition, analytical instrumentation, and vacuum drying processes. Its compact yet sturdy design incorporates a **ceramic-coated rotor and vanes**, which significantly enhances wear resistance and extends operational lifespan, even under demanding conditions. The pump s **automatic vane ejection system** simplifies maintenance by allowing for quick and easy replacement of worn vanes without requiring specialized tools, reducing downtime and labor costs. Additionally, the integrated **vacuum gauge port** enables real-time monitoring of system performance, ensuring optimal operation and early detection of potential issues. With a **maximum pumping speed of 28 m /h (162 cfm)** and a robust motor rated for continuous operation, the E2M28 is engineered to handle high-volume gas loads while maintaining energy efficiency. Its **low noise output** and smooth operation contribute to a quieter laboratory or production environment, further enhancing its suitability for sensitive applications. Built to meet stringent industry standards, including compliance with **CE and RoHS directives**, this vacuum pump offers a seamless integration with Edwards range of controllers and accessories, such as the **EZVAC** control system, which provides intuitive operation and advanced diagnostics. Whether used in research laboratories, semiconductor fabrication, or industrial vacuum processes, the Edwards A37317984 E2M28 stands as a dependable workhorse, delivering consistent performance, minimal maintenance requirements, and long-term reliability for demanding vacuum applications.

### **Pros and Cons of buying a Edwards A37317984 E2M28 Two-Stage Rotary Vane Vacuum Pump**

#### **Pros**

1. **High Performance and Efficiency**

The E2M28 is a two-stage rotary vane pump, which means it combines a roughing stage and a high-vacuum stage for superior pumping speed and ultimate vacuum levels. This design is ideal for applications requiring precise control, such as laboratory processes, semiconductor manufacturing, or thin-film deposition.

2. **Reliable and Durable Construction**

Edwards is a well-established manufacturer known for producing robust vacuum equipment. The A37317984 model features high-quality materials and precision engineering, ensuring long-term reliability and reduced downtime. The pump is designed to handle continuous operation under demanding conditions.

3. **Wide Range of Applications**

- **Scientific research** (e.g., mass spectrometry, electron microscopy)

- **Semiconductor and microelectronics** (e.g., sputtering, etching)

- **Pharmaceutical and biotechnology** (e.g., freeze-drying, vacuum filtration)

- **Industrial processes** (e.g., vacuum furnaces, degassing)

4. **Easy Maintenance and Serviceability**

Edwards pumps are designed with accessibility in mind. The E2M28 features modular components, making it easier to replace seals, vanes, or other wear parts without extensive disassembly. The manufacturer also provides comprehensive service support, including spare parts and technical assistance.

5. **Energy Efficiency**

Compared to older models or less efficient pumps, the E2M28 is designed to operate with lower power consumption while maintaining high performance. This can lead to cost savings over time, especially in applications requiring continuous use.

6. **Compatibility with Edwards Ecosystem**

If you are already using other Edwards vacuum components (e.g., controllers, gauges, or turbopumps), this pump integrates seamlessly into their system. This compatibility simplifies setup, reduces integration challenges, and ensures optimized performance.

7. **Low Noise and Vibration Levels**

Rotary vane pumps are generally quieter and produce less vibration compared to some other types of pumps (e.g., reciprocating pumps). The E2M28 is engineered to minimize operational noise, which is beneficial in laboratory or cleanroom environments where noise reduction is important.

8. **Proven Track Record**

Edwards has been a leader in vacuum technology for decades, and the E2M28 model benefits from extensive field testing and refinement. Many users in research and industrial settings trust Edwards for critical applications where reliability is non-negotiable.

---

#### **Cons**

1. **Higher Upfront Cost**

Like most high-performance vacuum pumps from reputable brands, the Edwards E2M28 comes with a significant initial investment. The price may be prohibitive for small laboratories, startups, or budget-conscious users who require only basic vacuum capabilities.

2. **Oil Consumption and Maintenance**

Rotary vane pumps operate using oil to lubricate and seal the vanes. Over time, the oil may degrade, require replacement, or become contaminated, adding to maintenance costs. Users must regularly monitor oil levels and quality, and oil changes can be labor-intensive, especially in large systems.

3. **Limited Ultimate Vacuum for Some Applications**

While the E2M28 achieves excellent vacuum levels for many applications, it may not be sufficient for ultra-high-vacuum (UHV) requirements. For such applications, a turbopump or diffusion pump may be necessary, either as a standalone solution or in combination with the rotary vane pump.

4. **Sensitivity to Contaminants**

The pump s performance can degrade if exposed to moisture, dust, or corrosive gases. In environments with poor air quality or without proper filtration, the pump may require more frequent cleaning or part replacements, increasing operational costs.

5. **Size and Installation Space Requirements**

The E2M28 is a robust, industrial-grade pump, which means it occupies significant space. Users with limited bench or installation space may find it challenging to integrate into their setup without modifications.

6. **Dependence on Supplier Support**

Edwards offers excellent customer service, but reliance on their support for maintenance, repairs, or spare parts can be a drawback in regions with limited local service providers. Longer lead times for parts or service calls could cause delays in critical operations.

7. **Potential for Leakage Over Time**

As with any mechanical pump, seals and gaskets can wear out, leading to minor leaks that reduce efficiency. While Edwards pumps are durable, users must stay vigilant about detecting and addressing leaks promptly to avoid performance degradation.

8. **Not Ideal for High-Gas-Load Applications**

The E2M28 is designed for moderate to high-vacuum applications but may struggle with extremely high gas loads (e.g., sudden bursts of gas or large-volume degassing). In such cases, a larger or specialized pump may be required.

---

### **Conclusion**

The **Edwards A37317984 E2M28 two-stage rotary vane vacuum pump** is a high-quality, reliable, and versatile tool well-suited for demanding applications in research, semiconductor manufacturing, pharmaceuticals, and industrial processes. Its two-stage design ensures efficient pumping, while its durability and compatibility with Edwards ecosystem make it a strong choice for users who prioritize performance and longevity.

However, the pump s higher cost, oil maintenance requirements, and space needs may not align with every user s budget or operational constraints. It is particularly well-suited for:

- **Laboratories** requiring precise vacuum control for experiments or instrumentation.

- **Industrial settings** where reliability and efficiency are critical.

- **Users already invested in Edwards vacuum systems**, as integration is seamless.

For applications needing ultra-high vacuum or extreme gas loads, complementary pumps (e.g., turbopumps) may be necessary. Users should carefully assess their specific needs such as budget, space, and maintenance capabilities before purchasing.

---

### **Recommendation**

- You need a robust, two-stage rotary vane pump for moderate to high-vacuum applications.

- Your budget allows for a premium investment in a reliable, long-lasting pump.

- You operate in an industry (e.g., semiconductor, pharmaceutical, research) where Edwards reputation for quality and support is valuable.

- You can accommodate the pump s size and maintenance requirements (oil changes, seal replacements).

- Your budget is limited, and you can find a comparable pump from another manufacturer (e.g., Leybold, Vacuubrand) at a lower cost.

- Your application requires ultra-high vacuum, in which case a turbopump or diffusion pump may be necessary.

- You lack the space or resources for regular oil maintenance and pump servicing.

For most professional users seeking a balance of performance, durability, and support, the **Edwards E2M28 is an excellent choice**. However, thorough research into your specific application and long-term operational needs will ensure the best decision.

Details:

I looked at a few local refurbishing companies. Pulled down to 4 microns: PASSED, - No excessive noise or imbalance: Spun properly: PASSED. They really make me feel like an important customer. Power rating.

Edwards E2M28 Two-Stage Rotary Vane Vacuum Pump A37317984, - Power Cable with NEMA 6-20P Plug, 30-Day Warranty. Notice: This pump is set to 220 volts . Dimensions W HX. Fully Tested and Working Without Issue.

Specifications. After its initial disinfection and inspection, our technicians tested the Edwards E2M28 two-stage rotary vane vacuum pump with following results. Because we placed an order through New Life Scientific for a used Loopholes, were able to get that super fast, so could move forward. I feel very lucky.

Manufacturer. I could not be happier with the piece of equipment that was able to get through New Life. They are very responsive, especially Micah. Quality, Inspection: Our instruments are inspected, tested, repaired, serviced and supported by our technicians.

I wouldn't say had bad experiences, BUT only good experiences with New Life Scientific.

part #: a37317984 prices

• $367.95-$1200.00

specifications valvplu:

• brand: Edwards
• mpn: A37317984
• type: Vacuum

returns valvplu:

• policy: Returns Accepted
• method: Money back
• paid by: Buyer
• time: 30 Days

shipping valvplu:

• cost: $510.00
• type: Fixed
• service: Flat Rate Freight
• class: Freight

seller valvplu:

• # reviews: 8599
• city: Lima, Ohio
• rating: 99.5%

general valvplu:

• condition: Used
• Pumps Pump Accessories > Vacuum Pumps > Other Vacuum Pumps

offer valvplu:

• availability: In Stock
• quantity: 1
• started: April 22, 2026
• options: Ship-to-home
• best offers: True
• sold: 0

payments valvplu:

• other
• credit card: Discover
• wallet: Google-pay

Edwards A37317984 Is Similar To:

• 000744323 Edwards Two Stage Rotary Vane Vacuum Pump (72.2% similar) I package all of my breakables very well, have never had any issues with packaging. States only. I am human and do make mistakes from time. I will 100 make it right. It powers up just fine and looks to be in great overall condition with some very minor scuffs on outside of the case. I want to say ...(October 30th, 2018)
• 07-d395-13-000 Edwards 503 Pirani Vacuum (41.2% similar) This includes all original packaging, labels, instructions, and subpart. Item number must be included with each return...(February 11th, 2018)
• 076305320 Edwards Active Pirani Vacuum Gauge (47.5% similar) Working pull from our university's mass spectrometer...(May 25th, 2018)
• 086167682 Edwards Boc Model Rotary Vacuum Pump (56.3% similar) Product detail displacement swept volume: 255 M311 FT3MIN-1PUMPING speed: 234 FT3MIN-1ULTIMATE vacuum total pressure without gas ballast...(September 3rd, 2018)
• 100-300 Edwards Diffstak Vapour Diffusion Pump Flange Untested (35.3% similar) This assembly was removed from Cambridge instruments scanning electron microscope type however, the oil residue is clean and has no evidence of burning. We keep a smaller portion of each sale. These are all 99. Due to lack of special expertise and corresponding equipment this assembly is untested. ...(July 26th, 2018)
• 100m-lnz Edwards Diffusion Pump Unit (30.1% similar) Does not power up. Most cords pictured are for testing purposes only. All statements regarding products and their configurations are made to the best of our ability with assumption that buyer is knowledgeable proficient in use this type equipment. Has some cosmetic wear. No manuals,no standard power...(October 8th, 2018)
• 117 A65312906 Rv5 Labconco Edwards Vacuum Pump Rotary Vane Dual Stage Not Working (34.8% similar) Universal motor to cover the widest possible voltage and frequency range from a single variant. 5 x 10-3 pressure GB i3 10-2 MBA bar gauge 7 persecutor power 50 60HZ450 550WPOWER connector 1-PHIEC EN60320 C13NOMINAL rotation speed 60HZ1500 1800RPMWEIGHT without oil 28 kg M3H FT3MIN-1 60HZ10 ...(March 21st, 2019)
• 157007812 Edwards Turbo Pump Iso Factory Rebuilt (28.6% similar) Vacuum pump expertise starts right here: need a refurbished shipped today. Technical help from expert call us. A world-wide supplier of rebuilt and new vacuum pumps, turbo pumps helium leak detectors. Is now in our 28TH year of operation, offering sales and service vacuum pumps. We buy surplus and ...(March 10th, 2018)
• 200-200h 24v Edwards Turbo Molecular High Vacuum Pump Controller (44.6% similar) Finial white design courtesy ship script...(September 5th, 2018)
• 212-j Stokes Vacuum Boc Edwards Microvac Pump Weg Motor (32.1% similar) See pictures for more details. All offered products are sold as advertised, is and without warranty. Is there a dock forklift available. Delivery hours: lift-gate required. 5HP, 3PH, 460V looks to be in good cosmetic condition with signs of wear and previous use. No software, power cords, or other ...(April 9th, 2018)
• 212j-14 Stokes Microvac Pennwalt Vacuum Pump Edwards Atlas Copco Rebuilt (27.9% similar) This pump has a pump is for sale locally in the Midwest and may be sold at anytime. Stokes 212J-14 with a 3 inch inlet micro vac rotary piston, 150 cfm , rebuilt bearings 2, seals, gaskets and exhaust valves. 5 hp motor and solenoid valve, volt 3 phase. This pump comes with a limited 1 year ...(September 28th, 2018)