CTI 8033299 Cryopump Cryo Torr

( Brand: Cti ), ( Manufacturer Part Number: 8033299 ), ( Type: Vacuum ), ( Unit Type: Unit ), ( Country Of Origin: United States )

Review CTI Cryopump Cryo torr Removed From Working Nice Condition

The **CTI Cryogenics Model 8033299 Cryo-Torr** is a high-performance, closed-cycle cryogenic pump designed for ultra-high vacuum (UHV) and scientific research applications where exceptional pumping speed, reliability, and efficiency are paramount. Engineered with precision, this cryopump leverages advanced cryogenic technology to achieve superior vacuum performance by condensing and adsorbing gases onto a cold surface, effectively reducing system pressure to levels as low as **10 Torr** in properly configured setups. The 8033299 features a robust **Gifford-McMahon (GM) cryocooler**, a closed-cycle refrigeration system that eliminates the need for liquid cryogens, ensuring continuous operation with minimal maintenance. This design not only enhances operational convenience but also reduces downtime, making it ideal for long-term experiments, semiconductor manufacturing, surface science, or particle accelerator environments where consistent vacuum integrity is critical.

The cryopump s **multi-stage cold head** operates at temperatures as low as **-269 C (-452 F)**, enabling it to efficiently adsorb a wide range of gases, including hydrogen, helium, nitrogen, and water vapor, while maintaining high pumping speeds across a broad pressure range. Its **non-evaporable getter (NEG) coating** further enhances performance by chemically adsorbing reactive gases, extending the pump s operational lifespan and improving residual gas composition. The compact yet durable construction incorporates **stainless steel housing** and **aluminum cold fingers**, ensuring thermal stability and resistance to thermal cycling, which is essential for maintaining vacuum integrity over prolonged use. The 8033299 is also equipped with **vibration-dampening mounts** and a **low-noise drive system**, minimizing mechanical disturbances that could affect sensitive instrumentation or delicate experimental setups.

For ease of integration, the Cryo-Torr is designed with **standard flange compatibility**, including options for **CF (Conflat) or ISO-KF connections**, allowing seamless incorporation into existing vacuum systems. Its **modular design** accommodates various cold head configurations, including **single-stage or two-stage cooling**, depending on the specific vacuum requirements of the application. Additionally, the pump includes **built-in safety features**, such as **over-temperature protection, pressure monitoring, and automatic shutdown protocols**, ensuring reliable operation even in demanding environments. The 8033299 is backed by CTI Cryogenics reputation for innovation and engineering excellence, offering users a dependable solution for achieving and maintaining the highest vacuum standards in research, industry, and advanced manufacturing. Whether used in surface analysis, thin-film deposition, or particle physics, this cryopump delivers unmatched performance, efficiency, and longevity.

### **Pros and Cons of buying a CTI Cryopump (Model 8033299 Cryo-Torr)**

#### **Pros**

1. **High Vacuum Performance** The CTI Cryopump is designed for achieving ultra-high vacuum (UHV) levels, making it ideal for applications requiring low-pressure environments such as semiconductor manufacturing, research labs, and thin-film deposition. Its cryogenic cooling effectively sorbs gases, including hydrogen, helium, and water vapor, which conventional pumps struggle with.

2. **Fast Pumping Speed** The cryopump offers rapid gas removal, significantly reducing chamber pump-down times compared to traditional mechanical or turbomolecular pumps. This is particularly beneficial in high-throughput processes where efficiency is critical.

3. **Long Lifespan and Low Maintenance** Unlike mechanical pumps that require frequent oil changes or part replacements, cryopumps have no moving parts (except for the compressor) and rely on cryogenic cooling. This reduces wear and tear, leading to lower long-term maintenance costs.

4. **Compatibility with Reactive Gases** The cryopump can handle reactive gases (e.g., oxygen, nitrogen) without contamination issues that plague oil-sealed pumps. This makes it suitable for processes involving corrosive or chemically reactive environments.

5. **Compact and Modular Design** The unit is relatively compact compared to some turbomolecular pumps, making it easier to integrate into existing systems. Some models also offer modular configurations for flexibility in setup.

6. **Energy Efficiency** While the compressor consumes power, the overall energy efficiency can be better than turbomolecular pumps in certain applications, especially when pumping large volumes of gas over extended periods.

- **Semiconductor fabrication** (etching, deposition)

- **Optical coating** (thin-film deposition)

- **Medical and pharmaceutical** (vacuum sterilization)

- **Scientific research** (surface science, particle accelerators)

8. **Minimal Contamination Risk** Since the pump does not use oil or seals that degrade over time, it reduces the risk of particulate or chemical contamination in sensitive processes.

---

#### **Cons**

1. **High Initial Cost** Cryopumps are significantly more expensive upfront than mechanical or diaphragm pumps. The CTI 8033299, in particular, is a high-end model, making it a substantial investment for smaller labs or startups.

2. **Dependence on Cryogenic Cooling** The pump requires a continuous supply of liquid nitrogen (or sometimes helium) to maintain cryogenic temperatures. This adds operational costs and logistical challenges, such as storage and refilling.

3. **Limited Pumping Speed for Certain Gases** While excellent for most gases, cryopumps are less effective at pumping noble gases (e.g., argon, neon) unless combined with a backing pump. This may require additional equipment, increasing complexity.

4. **Slow Warm-Up Time** If the pump needs to be regenerated (warmed up to release trapped gases), it can take several hours, during which the system is non-operational. This downtime must be factored into production schedules.

5. **Sensitivity to Backing Pump Performance** Cryopumps require a robust backing pump (often a roughing pump) to maintain optimal performance. Poor backing pump performance can degrade vacuum levels and reduce efficiency.

6. **Potential for Ice Buildup** If not properly maintained, moisture in the system can condense on cold surfaces, leading to ice formation. This requires regular cleaning and maintenance to prevent blockages.

7. **Limited Lifespan of Compressor** The compressor (if included) is a mechanical component and may require eventual replacement, adding to long-term costs. However, this is less frequent than issues with oil-sealed pumps.

8. **Not Ideal for High-Pressure Applications** Cryopumps are designed for low-pressure environments (UHV to rough vacuum). They are not suitable for roughing or high-pressure pumping tasks, which require separate pumps.

9. **Training and Expertise Required** Operating and maintaining a cryopump effectively requires specialized knowledge, especially in managing cryogenic systems and troubleshooting vacuum leaks or pump failures.

10. **Environmental Considerations** Liquid nitrogen consumption contributes to operational costs and may require proper handling to avoid spills or waste disposal issues.

---

### **Conclusion**

The **CTI Cryopump (8033299 Cryo-Torr)** is a powerful and reliable tool for achieving ultra-high vacuum in applications where purity, speed, and low maintenance are critical. Its advantages in terms of gas sorption efficiency, longevity, and compatibility with reactive gases make it a top choice for industries like semiconductor manufacturing, research, and thin-film deposition. However, the high upfront cost, dependency on liquid nitrogen, and operational complexities (such as warm-up times and backing pump requirements) must be carefully considered.

For **large-scale industrial or research facilities** with the budget and infrastructure to support cryogenic systems, this pump is an excellent investment. For **smaller labs, startups, or applications where cost efficiency is a priority**, a cryopump may not be the most practical choice, and alternatives like turbomolecular or diaphragm pumps might be more suitable.

---

### **Recommendation**

- You require **ultra-high vacuum (UHV) or clean vacuum environments** with minimal contamination risk.

- Your application involves **reactive or corrosive gases** that would degrade oil-sealed pumps.

- You have **consistent access to liquid nitrogen** and can justify the **high initial cost** with long-term efficiency gains.

- Your system **benefits from fast pump-down times** and reduced maintenance overhead.

- Your budget is **limited**, and you can achieve acceptable vacuum levels with lower-cost pumps.

- Your application does **not require UHV** and can tolerate slight contamination or slower pumping speeds.

- You lack **expertise in cryogenic systems** or infrastructure to support liquid nitrogen storage.

- Your process involves **high-pressure or rough vacuum** stages that a cryopump cannot handle alone.

For most **high-end research or production environments** where vacuum integrity is non-negotiable, the **CTI 8033299 Cryo-Torr remains a strong recommendation**. However, a thorough cost-benefit analysis including operational expenses, maintenance, and system compatibility is essential before making a purchase. Consulting with vacuum system specialists or suppliers can also help tailor the decision to your specific needs.

Details:

Gas Pumping Speeds: Water Vapor: 4,000 l/s. Specs: Configuration: Straight. Cryopump capture molecules onto cryogenic ally cooled surfaces, removing them from the process environment. Cryopump are ideal for processes requiring fast pumping of inert, non-toxic, or non-corrosive gases.

Air: 1,500 l/s. CTI Cryogenics Cryo-Torr 8 High Vacuum Pump Part #8033299, Used, removed from working service. Feel free to message with any questions. Unit is in good condition and was pulled from an operational system.

Vacuum Flange: 11 OD, 200mm ID.

part #: 8033299 price

• $2495.00

specifications valvplu:

• brand: Cti
• mpn: 8033299
• type: Vacuum
• unit type: Unit
• country of origin: United States

returns valvplu:

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

payments valvplu:

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• credit card: Mastercard
• wallet: Google-pay

shipping valvplu:

• cost: $0.00
• type: Fixed
• carrier: FedEx
• transit: 4-10 Days
• class: Standard
• service: FedEx Ground / FedEx Home Delivery

seller valvplu:

• rating: 100.0%
• city: Saint Paul, Minnesota
• # reviews: 68

general valvplu:

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

offer valvplu:

• started: May 26, 2026
• quantity: 1
• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0

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