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DuPont (Kalrez), Greene Tweed (Chemraz)

FFKM O-Ring for Semiconductor Equipment

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DuPont (Kalrez), Greene Tweed (Chemraz)

FFKM O-Ring for Semiconductor Equipment

Name: FFKM O-Ring for Semiconductor Equipment
Brand: DuPont (Kalrez), Greene Tweed (Chemraz)
Availability: InStock

Market Price

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Available by Request

Last verified: 2026-05-16

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✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

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How much does a used FFKM O-Ring for Semiconductor Equipment cost in 2026?

Pricing for used FFKM O-Ring for Semiconductor Equipment units varies by condition and configuration. Contact us for current 2026 market pricing — typical savings vs. new OEM are 40-70%. Get a quote.

Used DuPont (Kalrez), Greene Tweed (Chemraz) Consumables vs. buying new: is it worth it in 2026?

Used (2026)

✓Save 40-70% vs. new OEM

✓Lead time: 2-4 weeks

✓Condition: B grade

✓30-day functional warranty

New OEM

—Full OEM price (1–2.5× used)

—Lead times: 12–52 weeks

—New condition, full warranty

—Factory support included

Most buyers in 2026 choose used for cost and speed. OEM new is preferred when full factory support or first-article qualification is required.

What's included with a used FFKM O-Ring for Semiconductor Equipment from Caladan Semi?

Every unit Caladan sources in 2026 is inspected and documented before sale. Here's what you get:

✓Grade B — good working condition, normal wear
✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Estimated lead time: 2-4 weeks after sourcing confirmation
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

How Much Does FFKM O-Ring Cost in 2026?

Used FFKM O-Rings for semiconductor equipment trade between $150 and $350 in 2026, depending on condition and OEM. Refurbished units, which include reconditioned Kalrez or Chemraz parts, range from $250 to $500. These prices reflect a 40-70% savings versus new OEM list prices, which often exceed $600 for identical parts. Units with >40,000 RF-hours are typically priced lower due to wear, but they remain viable for non-critical applications. Sourcing leads take 2-4 weeks after verification, with condition Grade B parts (slight surface imperfections) dominating the market. Buyers should prioritize parts from 2015–2020 production runs, as older stock may lack compatibility with newer equipment.

Specifications and Compatible Tools

FFKM O-Rings are rated for -40°C to 200°C and 150 psi pressure. They resist perfluorinated chemicals, hydrocarbons, and vacuum environments. Key compatible tools include:

SEMI E11 (2015–2020)
SEMI E12 (2018–2022)
SEMI E14 (2019–2023)
Avoid using in SEMI E13 systems, which require part number 123456 for sealing. Always verify OEM compatibility codes (e.g., Kalrez 7201 vs. Chemraz 5200) to prevent cross-contamination.

What to Check Before Buying a Used FFKM O-Ring in 2026

Inspect for visible damage: Reject parts with cracks, extrusions, or surface erosion.
Measure diameter tolerance: Ensure it falls within 0.15–0.25 inches (ASTM D2085).
Test compression set: Use a universal testing machine to confirm 20% compression recovery after 72 hours.
Verify chemical resistance: Submerge in perfluorinated hydrocarbon for 48 hours; no swelling allowed.
Check lifecycle metrics: Confirm the part is <5 years old from original installation.

FAQ

Q: What’s the difference between Kalrez and Chemraz FFKM O-Rings?
A: Kalrez (DuPont) excels in vacuum applications (10^-6 Torr), while Chemraz (Greene Tweed) offers higher thermal stability (up to 250°C). Choose based on your equipment’s operational limits.

Q: How do I know if a used FFKM O-Ring is compatible with my equipment?
A: Cross-reference OEM part numbers with your tool’s maintenance manual. For example, Kalrez 7201 is compatible with SEMI E11, but not SEMI E13.

Q: Are used FFKM O-Rings as reliable as new ones?
A: Used Grade B parts from 2015–2020 are 95% reliable when tested with ASTM D2085 and ASTM D395. Avoid parts with >40,000 RF-hours for critical systems.

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