CTI-CRYOGENICS 8112866G001 Retrofast Cryopump Helix Vacuum Pump Cryo Torr

( Brand: Cti-cryogenics ), ( Manufacturer Part Number: 8112866G001 ), ( Type: Cryogenic Vacuum Pump ), ( Unit Type: Unit ), ( Fields: Used In Semiconductor, Vacuum, And Research Applications ), ( Cross Reference / Compatibility: Cti Cryo-torr 8 Systems )

Review CTI CRYOGENICS Retrofast Cryopump Helix Vacuum Pump Cryo Torr

The **CTI-Cryogenics 8112866G001 RetroFast Cryopump Helix Vacuum Pump** is a high-performance, compact cryogenic vacuum solution engineered for precision applications requiring ultra-high vacuum (UHV) environments. Part of the advanced **Helix series**, this cryopump combines cutting-edge cryogenic technology with modular design to deliver exceptional pumping speeds and reliability for a wide range of scientific, industrial, and research applications. Utilizing a **closed-cycle helium refrigeration system**, the pump achieves cryogenic temperatures through a highly efficient **Gifford-McMahon (GM) cryocooler**, eliminating the need for liquid cryogens while maintaining operational stability. The **RetroFast interface** ensures seamless integration with existing vacuum systems, offering flexibility in installation and compatibility with standard flange configurations, including CF and ISO standards. With a robust **aluminum housing** and precision-engineered components, this cryopump is built to withstand demanding environments while minimizing thermal drift and maximizing thermal conductivity. Its **turbo-molecular pump (TMP)-like performance** at cryogenic temperatures enables rapid evacuation and superior gas handling, making it ideal for applications such as semiconductor manufacturing, thin-film deposition, surface science, and particle accelerator systems. The **Helix series unique design** incorporates a **multi-stage cold head** to optimize cooling efficiency, reducing power consumption while maintaining consistent performance across extended operating cycles. Additionally, the pump s **low vibration profile** and compact footprint make it suitable for sensitive instrumentation where space and stability are critical. Backed by CTI-Cryogenics reputation for innovation and durability, the 8112866G001 is a versatile solution for researchers and engineers seeking a reliable, high-efficiency cryopump that balances performance, ease of use, and long-term operational integrity.

### **Pros and Cons of buying a CTI-Cryogenics 8112866G001 RetroFast Cryopump (Helix Vacuum Pump, Cryo Torr)**

#### **Pros**

1. **High Pumping Speed for Cryopumps** The RetroFast design provides excellent pumping speed for gases like hydrogen, helium, and water vapor, making it ideal for ultra-high vacuum (UHV) and high-vacuum applications.

2. **Compact and Modular Design** The Helix configuration allows for flexible installation in tight spaces, reducing footprint requirements compared to traditional cryopumps.

3. **Low Operating Costs** Since it uses liquid nitrogen (LN ) rather than electricity, it avoids high power consumption costs associated with turbopumps or ion pumps.

4. **Long Lifespan with Proper Maintenance** Cryopumps have no moving parts (other than the LN refill system), reducing wear and tear over time if maintained correctly.

5. **Versatile Applications** Suitable for semiconductor manufacturing, research labs, thin-film deposition, and other industries requiring high vacuum environments.

6. **Reduced Backstreaming** Unlike turbopumps, cryopumps do not pump oil vapors back into the chamber, minimizing contamination risks.

7. **Quick Cooldown Time** The RetroFast design cools down faster than traditional cryopumps, reducing downtime between cycles.

8. **Compatibility with Existing Systems** Works well with roughing pumps (e.g., scroll or diaphragm pumps) for efficient vacuum chamber evacuation.

9. **Minimal Maintenance Requirements** No oil changes or filter replacements needed, unlike turbopumps.

10. **Environmentally Friendly** No oil or hazardous materials are used, making it a cleaner alternative to some other vacuum pump technologies.

---

#### **Cons**

1. **Dependence on Liquid Nitrogen (LN )** Requires a constant supply of LN , which must be replenished regularly. LN costs add up over time, especially in high-volume applications.

2. **Limited Pumping for Certain Gases** Performs poorly on reactive gases (e.g., oxygen, nitrogen) unless combined with a getter pump or other auxiliary pumping system.

3. **Cooldown Time for Initial Use** The first cooldown after LN refill takes longer than subsequent cycles, which may impact workflow efficiency.

4. **Higher Initial Cost** Compared to some turbopumps or diaphragm pumps, cryopumps can be more expensive upfront, though long-term operational costs may balance this out.

5. **Sensitivity to Leaks** If the vacuum chamber has leaks, the cryopump s efficiency drops significantly, requiring thorough leak detection and repair.

6. **Not Ideal for Dynamic Vacuum Systems** Cryopumps are best for static or low-flow applications; they struggle with high gas loads or rapid pressure changes.

7. **LN Storage and Handling Requirements** Proper storage and safety measures are needed to handle LN , which can be hazardous if mishandled.

8. **Limited Pumping Speed for Heavy Gases** While strong for light gases (H , He), its performance for heavier gases (e.g., argon, nitrogen) is reduced compared to turbopumps.

9. **Potential for Ice Buildup** If water vapor is present in high concentrations, ice can accumulate on the cold head, reducing efficiency unless properly managed.

10. **Dependence on Supplier for Replacement Parts** Some specialized components (e.g., cold heads, LN transfer lines) may require purchasing directly from CTI or authorized distributors.

---

### **Conclusion**

The **CTI-Cryogenics 8112866G001 RetroFast Cryopump** is a robust and efficient choice for applications requiring **ultra-high vacuum (UHV) with minimal contamination risks**, particularly in **semiconductor processing, research labs, and thin-film deposition**. Its **low operating costs (no electricity), compact design, and long lifespan** make it advantageous for long-term use. However, its **dependence on LN , limited gas compatibility, and higher initial cost** may be drawbacks depending on the specific application.

If your primary needs are **high vacuum purity, low maintenance, and compatibility with light gases**, this cryopump is an excellent investment. If your system requires **high gas loads, dynamic pumping, or frequent pressure changes**, a **turbopump or ion pump system** might be a better fit.

---

### **Recommendation**

- You operate in **UHV or high-vacuum environments** where contamination is a concern.

- Your application involves **light gases (H , He, water vapor)** and requires **minimal maintenance**.

- You can **manage LN supply costs** and storage logistics.

- You need a **compact, modular solution** with **fast cooldown times**.

- Your system requires **high gas loads or dynamic pumping**.

- You frequently work with **reactive or heavy gases** (O , N , Ar).

- LN costs are a significant operational expense.

- You need **faster evacuation times** without LN dependency.

For most **research, semiconductor, or thin-film applications**, this cryopump is a **strong, reliable choice** when properly integrated into the system. Ensure compatibility with your existing vacuum infrastructure and budget for LN consumption before purchase.

Details:

No known performance issues prior to removal. Pulled from a working system. Accurate Photos. Important: This is specialized equipment requiring proper compressor/controller setup.

Includes exactly what is shown in photos. FedEx Ground or USPS Depending on Size/Weight. Operational Notes: Removed from functioning system. This unit includes a Dido Cryo Service tag, indicating prior service/inspection.

Condition: Good overall cosmetic condition. Model: Retrofast 8 Cryopump. No guarantees on ultimate vacuum or temperature performance without proper system integration. Carefully Packaged.

Part Number: 8112866G001. Normal signs of use from industrial environment. Clean unit with service history tag. CTI-Cryogenics Retrofast 8 Cryopump Helix Technology.

No major damage observed. Buyer should be familiar with cryogenic vacuum systems. Not tested after removal due to lack of system. Serial Number: NL9639763.

Manufacturer: CTI-Cryogenics Helix Technology. Sold as used industrial equipment.

part #: 8112866g001 price

• $3795.00

specifications valvplu:

• brand: Cti-cryogenics
• mpn: 8112866g001
• type: Cryogenic Vacuum Pump
• unit type: Unit
• fields: Used In Semiconductor, Vacuum, And Research Applications
• cross reference / compatibility: Cti Cryo-torr 8 Systems

shipping valvplu:

• class: Standard
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery
• type: Fixed
• transit: 3-7 Days
• carrier: FedEx

general valvplu:

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

returns valvplu:

• policy: No Returns

offer valvplu:

• options: Ship-to-home
• sold: 0
• availability: In Stock
• best offers: True
• quantity: 1
• started: April 14, 2026

seller valvplu:

• # reviews: 1284
• rating: 99.8%
• city: Eleva, Wisconsin

payments valvplu:

• wallet: Google-pay
• credit card: Diners-club
• other

Cti-cryogenics 8112866G001 Is Similar To:

• 1020r Cti Cryogenics Cti-cryogenics Compressor (36.4% similar) On the ask a question link at bottom of this listing. Buyer pays for all shipping costs. Warranty the items in this listing are sold as-is no. Manufacturer: cti cryogenics condition: for parts or not working. Items are described to the best of our ability. Please for details. For estimated cost ...(January 30th, 2018)
• 250f Cti Cryogenics Onboard Cryo Pump Vacuum Cryogenic Rebuilt (52.6% similar) It is ready to work. This cti cryogenics 250F vacuum pump is used, rebuilt, and tested...(September 21st, 2018)
• 2k21c3r 236a-6a Cti-cryogenics Module For (36.2% similar) Compatibility issues are not considered DOA. All parts, including accessories and cables are only included if pictured or listed in the. All pictures are taken in house. Save packaging for carrier claim. USPS or ups ground. Are only included if pictured or listed in. All parts, accessories, cables, ...(February 17th, 2018)
• 8011 Cti Cryogenics Used Control Module Free Shipping (34.4% similar) Do not duplicate or copy. I hold the winning bidder accountable for his her bid. Delivery confirmation is used. Buyer pays shipping charges as stated. Sold as-is pictured. No warranty. I also include numerous photos with all of my listings. Template made by. I try to be accurate in my. Used cti ...(September 4th, 2018)
• 8018182 Cti Cryo-torr 10 Vacuum Pump W (38.9% similar) A forklift is onsite to load suitable vehicle. Weather and had some rain on it. Some controls have been removed but comes with everything shown. Cryo-torr cti high vacuum pump model , removed from working environment but sat outside so. Items over 150 lbs. Char auto-tech ii control, 818 cryopump ...(February 25th, 2018)
• 8031346g002 Helix Water Cooled Cryo Compressor Cti Cryogenics (17.6% similar) 8MAX input power Cti-cryogenics helix 8500 water cooled cryo compressor refurbished unit, 60 day return warranty. Us domestic only. 75 karate fl Lr current a flat rate shipping vac 60HZ 50HZNOM power factor...(August 27th, 2018)
• 8032-224 Cti Cryogenics Model Sc Helix Helium Air Compressor (44.4% similar) Shipping contents: 1 cti cryogenics model SC compressor 8032-224LISTING is sold as. Working condition: very recently pulled from environment. Bruin computer trading buying on: cti cryogenics model SC helix helium air compressor physical condition: unit is in fair condition with signs of use, ...(September 19th, 2018)
• 8032222g008 Cti-cryogenics Cable 6 Pin (33.6% similar) Please first before buying on an item if you choose this method. This is a Cti-cryogenics 8032222G008 cable 6 pin, in good used condition. INDUSTRIALCONNECTIONS5B...(November 29th, 2017)
• 8033168 Cti-cryogenics Cti Cryo-torr 8 (42.5% similar) The drive motor sounds good, and there appear to be no issues with scotch-yoke assembly. The pump cools down in about roughing valve, purge gas solenoid, and heater are not included. We ran this for weeks at a time. For sale is a Cti-cryogenics cryo torr 8 pn high vacuum pump. There were no ...(September 4th, 2017)
• 8033168r Cti-cryogenics Cti Cryogenics Cryo (49.2% similar) ...(January 17th, 2018)
• 8042002g003 Cti-cryogenics Helix Vacuum-pump Temperature (51.9% similar) Your satisfaction is extremely important to us. width in inches: 16. If in doubt, please before purchasing. If you do receive the package, submit clear images of packaging box and damaged item from multiple angles. length in inches: 16. Do not discard the packaging. Are only included if pictured...(February 1st, 2018)