Used Vacuum Pumps›Edwards›Other
Edwards · Other
Edwards nEXT400IID — turbomolecular pump, UHV
Original title: Edwards nEXT400IID UHV-160W Vacuum Pump B83200816
📍 United Kingdom · Yr 2000
Suitability for 1 × FD440
Not verifiedItem type
Not confirmed
Technical
Cannot calculate
Condition
Not evidenced
Data
Family only
🔴 Check carefully
Turbomolecular pump unsuitable as primary vacuum source for WAVE freeze dryers.
Condition from photo
Exterior clean, finned motor head and base intact. No visible oil leaks or damage. Labels legible.
Watch out for
- Turbomolecular pump requires backing pump; not a standalone vacuum source for WA
- UHV-160W is a high-vacuum stage, not suitable for rough-pump duty on freeze drye
- No backing pump included in listing; system incomplete for WAVE application.
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- other
- Year
- 2000
- Source
- eBay
- Listing #
- eBay #116839779359
- Last verified
- Jul 30, 2026
The Other family is recognised, but the exact variant is not supported. Model-specific performance and water-vapour figures from Other Edwards are therefore withheld.
Price history— Edwards Other
Family: OtherExact model is not supported by the listing or type plate.
Median €2.552 · 827 cleaned observations · €300–€15.345
Type plate (AI reading)
- Exact model
- nEXT400IID
- Pump Type
- Turbomolecular
- Pumping Speed (N₂)
- 160 l/s
- Ultimate Vacuum
- UHV (< 1×10⁻⁶ mbar)
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Generic Edwards vacuum pump — the exact model family was not detected automatically. Suitability remains unverified until the model or type plate is clear.
Traceable assessment
How each pump is assessed
AI helps read images and listing text. The final suitability result is calculated by a fixed engineering rule using evidenced values.
Method version: 5 August 2026
- 1
Identify the item
The title and photos are checked first to confirm that the listing is a complete vacuum pump — not an accessory, spare part or pump head only.
- 2
Establish evidence
The type plate and listing provide specific facts. Manufacturer values are used only for a confirmed model; family-level values stay clearly labelled.
- 3
Compare engineering data
Pumping speed, water-vapour capacity and ultimate pressure are compared with the selected WAVE machine and the chosen safety margins.
- 4
Assess condition separately
A photo or a seller saying “runs” does not replace a vacuum test. Unknown data remain unknown and never become an automatic green recommendation.