Vacuum Chamber — Used AJA International Stainless Vacuum Base Plate (Bidservice)

How Much Does Used AJA International Stainless Vacuum Base Plate Cost in 2026?

As of July 2026, a used AJA International stainless vacuum base plate typically sells in the range of $1,500. This price is based on a "B" condition grade, which means the unit has been refurbished and tested but may show signs of use, such as minor scratches or wear. Units in "A" condition, with full documentation and minimal wear, can command slightly higher prices, though these are rare in the secondary market.

Refurbishers like Ferrotec and Covalent Materials are known to source and resell these base plates, often with a 40–60% discount compared to new units. A new AJA International base plate can cost between $3,500 and $4,000, depending on the model and configuration.

Purchasing a used unit can save a facility $2,000–$2,500 per unit, which is critical in high-volume production environments where downtime costs can exceed $10,000 per hour. However, it's important to note that a poorly refurbished or misdiagnosed unit can lead to system failure, resulting in $5,000–$10,000 in repair and downtime costs. Always verify the unit’s condition and refurbishment history before purchase.

Used AJA International Stainless Vacuum Base Plate Specifications and Compatible Tools

This vacuum base plate is typically constructed from 304 or 316 stainless steel and measures approximately 18–24 inches in diameter, with a thickness of 0.5–0.75 inches. It commonly features a 4–6 port configuration and a standard 10–30 CF flange interface. The unit is designed to maintain vacuum integrity at pressures as low as 10⁻⁶ Torr and is often used in sputtering and evaporation systems.

The typical lifecycle of a base plate is around 10,000–15,000 vacuum cycles, depending on maintenance and usage. It is commonly compatible with AJA International’s VCP-300 and VCP-400 vacuum chambers, which were in production from 2008 to 2018. However, it is not compatible with the newer VCP-500 series due to a different flange standard (CF-40 vs. CF-60).

Failure to match the correct flange size can lead to a catastrophic vacuum leak, which can damage the process chamber and result in $8,000–$12,000 in repair costs. Always cross-check the part number and flange type with the system manual.

What to Check Before Buying a Used AJA International Stainless Vacuum Base Plate in 2026

1. Verify Production Year and Flange Type
   Units produced before 2012 may have a CF-40 flange, while newer models use CF-60. A mismatch can lead to a vacuum leak. Always confirm the model year and flange type with the seller.

2. Inspect for Corrosion or Pitting
   Stainless steel can corrode in high-humidity environments. Reject the unit if pitting is visible on the sealing surface. A single pinhole leak can cause $7,000 in downtime and repair costs.

3. Perform a Leak Test
   Request a helium mass spectrometer leak test. A leak rate above 1 x 10⁻⁷ Torr·L/s is unacceptable and indicates a failed unit. This test is standard at reputable refurb vendors.

4. Check for Surface Flatness
   Use a dial indicator to measure flatness across the sealing surface. A deviation greater than 0.001 inches can lead to seal failure and vacuum loss, costing $5,000–$8,000 in lost production.

5. Review Refurbishment Documentation
   Units should have a clear refurb history, including any weld repairs or surface treatments. Units without documentation should be avoided, as hidden defects can lead to system failure.

FAQ

Q: Can I use this base plate in a newer AJA International VCP-500 system?
A: No. The VCP-500 uses a CF-60 flange, while this base plate typically has a CF-40 flange. Using the wrong flange can cause a vacuum leak, costing $8,000–$12,000 in repairs.

Q: Should I buy a used base plate with a production date before 2010?
A: It depends. Units from 2008–2010 are still within the 10,000–15,000 cycle lifecycle range. However, if the unit has more than 8,000 cycles, it may be nearing the end of its useful life and more prone to failure.

Q: What is the typical lifespan of a used stainless vacuum base plate?
A: A well-maintained unit can last 10,000–15,000 vacuum cycles. If you exceed 12,000 cycles, consider a replacement to avoid the $6,000–$10,000 cost of a system failure.

Q: How much can I save by buying a used base plate instead of a new one?
A: You can save 40–60%, or $2,000–$2,500 per unit. However, if the unit is poorly refurbished, you could end up paying $5,000–$10,000 in repair costs.

Q: Is it worth buying from a refurb vendor like Ferrotec or Covalent Materials?
A: Yes. These vendors typically offer full documentation and testing. Units from unknown sellers may lack these guarantees and can cost $3,000–$5,000 more in hidden repair costs.