PFEIFFER UNO-30M Vacuum Pump Uno SCW29

( Brand: Pfeiffer ), ( Manufacturer Part Number: UNO-30M ), ( Part Type: Vacuum Pump )

Review PFEIFFER Type Uno 30m Vacuum Pump

The **Pfeiffer Vacuum UNO-30M SCW29** is a high-performance, compact dry scroll vacuum pump designed for precision applications requiring reliable and efficient gas handling in a wide range of industries. Part of Pfeiffer Vacuum s renowned UNO series, this pump combines cutting-edge scroll technology with robust engineering to deliver exceptional performance in both laboratory and industrial environments. The **SCW29** variant features a **30 m /h (17.1 cfm) pumping speed at 1 mbar (100 Pa)**, making it ideal for applications such as vacuum coating, semiconductor processing, analytical instrumentation, and medical device manufacturing where consistent and clean vacuum levels are critical. Its **oil-free dry scroll design** eliminates the need for lubricants, reducing maintenance requirements and minimizing the risk of contamination, which is particularly advantageous in cleanroom or high-purity environments. The pump operates silently, with noise levels kept to a minimum, thanks to advanced acoustic insulation and optimized rotor dynamics, ensuring smooth operation even in sensitive laboratory settings. Constructed from high-quality materials, including stainless steel components and corrosion-resistant finishes, the UNO-30M SCW29 is built to withstand demanding conditions while maintaining long-term durability. Its **compact footprint** and modular design allow for easy integration into existing systems, making it a versatile choice for both new installations and retrofits. Additionally, the pump s **user-friendly interface** and intuitive control options simplify operation, while its **energy-efficient motor** ensures cost-effective performance without compromising on performance. Whether used for vacuum drying, degassing, or process control, the Pfeiffer UNO-30M SCW29 delivers precise, repeatable results with minimal downtime, making it a trusted solution for professionals who demand excellence in vacuum technology.

### Pros and Cons of buying a Pfeiffer UNO-30M (SCW29) Vacuum Pump

1. **High Performance and Efficiency** The UNO-30M is a dry scroll vacuum pump designed for high-speed, oil-free operation, making it ideal for applications requiring clean, contamination-free vacuum environments. It achieves a final pressure of approximately 1 mbar (10 -3 mbar with a backing pump) and can handle large gas loads efficiently.

2. **Oil-Free Operation** Unlike traditional rotary vane or piston pumps, the UNO-30M does not require oil, reducing maintenance costs and eliminating the risk of oil contamination in sensitive processes (e.g., semiconductor manufacturing, pharmaceuticals, or analytical instruments).

3. **Compact and Modular Design** The pump is compact, making it suitable for integration into existing systems with limited space. Its modular design allows for easy installation and retrofitting.

4. **Low Noise and Vibration** Scroll pumps operate quietly compared to other vacuum pump types, reducing operational noise in laboratory or production environments.

5. **Long Service Life** The robust construction and lack of moving parts prone to wear (like oil seals) contribute to a longer operational lifespan with minimal downtime.

6. **Versatility** The UNO-30M can handle a wide range of gases, including inert gases, and is compatible with various backing pumps (e.g., dry screw or diaphragm pumps) for extended pressure ranges.

7. **Energy Efficiency** Scroll pumps are generally more energy-efficient than traditional wet pumps, reducing operational costs over time.

8. **Low Maintenance Requirements** Since it lacks oil, there are no oil changes or filter replacements needed, simplifying maintenance routines.

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1. **High Initial Cost** Dry scroll pumps like the UNO-30M are significantly more expensive upfront compared to traditional oil-sealed rotary vane pumps. The price can range from **$15,000 to $30,000 **, depending on configuration and accessories.

2. **Limited Final Pressure Without Backing Pump** While the UNO-30M can achieve pressures as low as 1 mbar on its own, reaching ultra-high vacuum (UHV) or high vacuum (HV) levels typically requires pairing it with a backing pump (e.g., a dry screw pump), adding to the system cost.

3. **Sensitivity to Contaminants** Although oil-free, the pump s internals (e.g., scroll elements) can be damaged by particulate matter or corrosive gases if proper filtration (e.g., particulate filters) is not implemented upstream.

4. **Limited Compatibility with Certain Gases** While it handles most gases well, some reactive or corrosive gases (e.g., chlorine, fluorine) may degrade the pump s materials over time, potentially shortening its lifespan.

5. **Dependence on Backing Pump for Full Performance** For applications requiring pressures below 1 mbar, a secondary backing pump is necessary, increasing system complexity and cost.

6. **Higher Power Consumption** Compared to smaller rotary vane pumps, the UNO-30M consumes more power, which may impact energy costs in continuous operation.

7. **Limited Availability of Spare Parts** As a specialized piece of equipment, finding replacement parts or service providers may be more challenging than for more common pump types.

8. **Learning Curve for Installation and Maintenance** Proper setup, alignment, and maintenance (e.g., checking for gas leaks, ensuring proper cooling) require technical expertise, which may necessitate training or hiring specialized personnel.

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The **Pfeiffer UNO-30M (SCW29)** is a high-quality, oil-free dry scroll vacuum pump that excels in applications where cleanliness, reliability, and efficiency are critical. It is particularly well-suited for industries such as **semiconductor manufacturing, pharmaceuticals, analytical instrumentation, and research laboratories** where contamination risks must be minimized.

However, its **high upfront cost, dependency on a backing pump for ultra-low pressures, and sensitivity to certain gases** make it less ideal for budget-conscious or low-complexity applications. If your application demands **high vacuum performance without oil contamination**, the UNO-30M is a strong choice. For simpler or cost-sensitive applications, a traditional rotary vane pump (e.g., Edwards RV or Leybold) may be a more economical alternative.

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- You require an **oil-free, contamination-free vacuum solution**.

- Your application involves **high vacuum demands (1 mbar or better) with large gas loads**.

- You are working in **pharmaceuticals, semiconductor fabrication, or analytical sciences** where cleanliness is non-negotiable.

- You can justify the **higher initial cost** with long-term operational and maintenance savings.

- Your budget is **limited**, and a lower-cost rotary vane pump will suffice.

- Your application only requires **rough or medium vacuum** (where a simpler pump would work).

- You lack **technical expertise** for installation, troubleshooting, or maintenance.

- Your process involves **highly corrosive or reactive gases** that could damage the pump over time.

- For **lower-cost options**, evaluate **Edwards RV or Leybold TRIVAC** rotary vane pumps (if oil contamination is acceptable).

- For **ultra-high vacuum (UHV) applications**, consider pairing the UNO-30M with a **dry screw backing pump** (e.g., Pfeiffer HiPace) for extended pressure ranges.

- If **space is a constraint**, verify the pump s dimensions against your system layout to ensure compatibility.

Ultimately, the UNO-30M is a **premium choice** for demanding vacuum applications where reliability and cleanliness outweigh cost concerns. Carefully assess your specific requirements before purchasing.

Details:

Used items have a 30-day return. High cost, high value equipment for a fraction of the new /replacement price. No accessories including standard power cord/cable. No means to test.

Acquired from a reliable source.

part #: uno30m price

• $187.50

specifications valvplu:

• brand: Pfeiffer
• mpn: Uno-30m
• part type: Vacuum Pump

payments valvplu:

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

offer valvplu:

• started: February 12, 2026
• options: Ship-to-home
• availability: In Stock
• quantity: 1
• best offers: True
• sold: 0

shipping valvplu:

• type: Fixed
• transit: 5-8 Days
• class: Standard
• service: UPS Ground
• carrier: UPS
• cost: $128.95

returns valvplu:

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

seller valvplu:

• rating: 100.0%
• # reviews: 56588
• city: Bosque Farms, New Mexico

general valvplu:

• Pumps Pump Accessories > Vacuum Pumps > Rotary Vane Pumps
• condition: Used

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