Used Vacuum Pumps›Pfeiffer›Other
Pfeiffer · Other
Pfeiffer TMH 261 — turbomolecular pump, 250 l/s
Original title: PFEIFFER VACUUM TMH 261-250-040 PM P03 626 & TC600 C 3326 181
Market median (sold): €1.298 from 103 sales in this family
📍 Germany
🔴 Check carefully
Turbomolecular pump unsuitable as primary vacuum source for WAVE freeze dryers.
Condition from photo
Exterior shows moderate dust and wear; heatsink fins intact; control electronics present; no visible oil leaks or damage.
Likely refurb / add-ons
- Backing pump (rotary vane, ~€200–400)
- Turbomolecular bearing service (€400–600)
- Control electronics refurbishment (€150–300)
Watch out for
- Turbomolecular pump requires a backing pump; WAVE freeze dryers use single-stage
- No backing pump visible in listing; TC600 controller alone cannot operate this p
- High-speed bearing wear cannot be assessed from exterior photos; internal condit
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- other
- Pumping speed
- ~0 m³/h
- Water-vapour tolerance
- ~0 g/h
- Ultimate vacuum
- —
- Source
- eBay
- Listing #
- eBay #326973006824
- Last verified
- Jul 27, 2026
Price history— Pfeiffer Other
Median €1.119 · 1510 observations · €372–€23.648
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Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- TMH 261-250-040 PM P03 626
- Pumping Speed
- 250 l/s
- Inlet Diameter
- DN 40 ISO-KF
- Backing Pressure
- < 0.1 mbar
- Ultimate Pressure
- < 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 Pfeiffer vacuum pump — model family not auto-detected. Send us the listing URL for a free identification + suitability check.