Pumps: Vacuum — Used Cryotorr 8 (CTI)

How Much Does Used - Cryotorr 8 Cost in 2026?

The Used Cryotorr 8 typically sells in the range of $1,500, depending on its condition and whether it has been professionally refurbished. Units in "B" grade condition, which is common in the secondary market, typically fall into this price bracket. If you're looking for a higher-grade "A" unit with full documentation and recent service, expect to pay up to $2,000, though such units are rare. Refurbished units from vendors like Ferrotec and Axus Technology can be priced similarly, depending on the extent of their rebuild.

Compared to a new Cryotorr 8, which can cost upwards of $4,000, used units represent a 40–60% cost savings. This can translate into significant budget flexibility, especially for smaller fabs or R&D labs. However, the savings come with a caveat: a poorly maintained or misdiagnosed unit can lead to downtime of 10–14 days during installation and commissioning, which can cost a mid-sized fab $50,000 or more in lost production. Always verify the unit’s maintenance history and service records before purchase.

Used - Cryotorr 8 Specifications and Compatible Tools

The Cryotorr 8 is a high-vacuum cryopump designed for applications requiring ultra-clean environments. It typically achieves base pressures in the 10⁻⁸ to 10⁻⁹ Torr range and has a pumping speed of approximately 100–150 L/s for nitrogen. These units are commonly found in semiconductor tools from the early 2000s, particularly in older deposition and etch systems. They are often used in conjunction with dry scroll or turbomolecular pumps to achieve ultra-high vacuum conditions.

The Cryotorr 8 was commonly used in tools like the Varian 8000 series and the Lam Research 2300 series, which were in production from 1998 to 2006. However, it is not compatible with newer tools such as the Lam 3900 series, which use the CTI Cryotorr 12. Attempting to install a Cryotorr 8 in a system designed for the Cryotorr 12 can lead to system instability and vacuum leaks, which can cost $10,000–$15,000 in repairs and downtime.

What to Check Before Buying a Used Used - Cryotorr 8 in 2026

1. Verify the Production Year: Units produced before 2003 often have lower-quality seals and may require more frequent maintenance. If the unit is older than 2001, be cautious—these models are more prone to seal degradation.

2. Check the Cold Head Condition: The cold head should be free of frost and should maintain a temperature of -150°C or lower. Use a thermocouple test to verify. If it can't reach this temperature, the unit is likely out of spec and should be rejected.

3. Inspect the Pumping Speed: Use a calibrated Pirani gauge to measure the pumping speed. A healthy Cryotorr 8 should achieve at least 100 L/s. If it falls below 80 L/s, it may not be sufficient for most applications.

4. Review the Maintenance History: Look for a service record from the past 3–5 years. Units that haven’t been serviced in over 7 years are a red flag and should be avoided. Lack of maintenance can lead to seal failure and vacuum leaks, which can cost $8,000–$12,000 in repairs.

5. Reject If: The unit has visible signs of overheating, such as discolored or warped components. This is a sign of improper operation and can lead to catastrophic failure during installation.

FAQ

Q: Can I use a Cryotorr 8 in place of a Cryotorr 12?
A: No. The Cryotorr 8 is not compatible with tools designed for the Cryotorr 12. The 12 has a higher pumping speed and different mounting requirements. Attempting to install it can lead to vacuum leaks and system failure, costing $10,000–$15,000 in repairs.

Q: Should I buy a Cryotorr 8 produced before 2001?
A: No. Units produced before 2001 often have inferior seals and are more prone to failure. If you must use an older unit, ensure it has been recently serviced and has a full maintenance history. Otherwise, expect higher maintenance costs and potential downtime.

Q: How long can a Cryotorr 8 last with proper maintenance?
A: With proper maintenance every 3–5 years, a Cryotorr 8 can last 10–15 years. Units that are not maintained may fail within 5–7 years, especially if they are used in high-duty environments.

Q: What is the difference in performance between a Cryotorr 8 and a Cryotorr 12?
A: The Cryotorr 12 has a pumping speed of 200–250 L/s, compared to the 100–150 L/s of the Cryotorr 8. The 12 also has a higher base pressure capability and is more suitable for high-throughput manufacturing. The 8 is better suited for R&D or low-volume production.

Q: How much does it cost to refurbish a Cryotorr 8?
A: A full refurbishment typically costs $800–$1,200, depending on the vendor. This includes replacing seals, cleaning the cold head, and recalibrating the pump. Refurbished units from Ferrotec or Axus Technology are generally more reliable and come with a 1–2 year warranty.