Edwards · E2M
Edwards E2M8 — two-stage rotary vane, 1/2 HP
Original title: EDWARDS No. 8 E2M8 Two-Stage Rotary Vane Vacuum Pump – 1/2 HP – 115/230V
Market median (sold): €1.173 from 40 sales in this family
📍 Canada
🟢 Good fit
Excellent match for WAVE freeze dryers; well-priced relative to market.
Condition from photo
Exterior clean, minimal corrosion on motor housing. Oil level visible in sight glass. No obvious leaks or damage.
Likely refurb / add-ons
- Oil change & filter service (€80)
- Exhaust filter replacement (€60)
- Soft-starter module (€280)
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Oil-sealed rotary vane
- Pumping speed
- ~18 m³/h
- Water-vapour tolerance
- ~120 g/h
- Ultimate vacuum
- ≤ 0.001 mbar
- Source
- eBay
- Listing #
- eBay #147341746408
- Last verified
- Jul 30, 2026
Fits WAVE machines: FD260, FD440
Price history— Edwards E2M
Median €1.023 · 1437 observations · €130–€34.195
Recent sales (Edwards E2M)
- €2.325Sep 22, 2026Edwards E2M40 Rotary Vacuum Pump
- €1.544Sep 22, 2026Edwards E2M28 Vacuum Pump REBUILT 1mTor-4mTor see pics 12-Monrh Warranty!
- €925Sep 22, 2026Edwards 18 Vacuum Pump E2m18
- €2.353Sep 22, 2026Edwards E2M40 Vacuum Pump
- €3.422Sep 22, 2026BOC EDWARDS VACUUM PUMP E2M175
- €2.604Sep 22, 2026Edwards E2M28 Vacuum Pump.Rebuilt by Yourlabsolutions Warranty!
- €558Sep 22, 2026Edwards E2M-8 Two-Stage Rotary Vane Vacuum Pump 8 m³/h 7E-3 mbar 0.37kW
- €2.325Sep 22, 2026Edwards E2M28 Vacuum Pump 28
- €1.368Sep 22, 2026Edwards E2M28 28 Two-Stage Rotary Vane Vacuum Pump 0.01 mBar +sound dampening
- €930Aug 9, 2026EDWARDS E2M-18 VACUUM PUMP T267309
- €1.349Aug 9, 2026Edwards 28 E2M28 Rotary Vane Vacuum 208V Pump. Excellent Never put into service.
- €5.579Aug 9, 2026ROTARY VANE VACUUM PUMP EDWARDS E2M40
Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- E2M8
- Serial
- 12162
- Model
- E2M8
- Serial
- 12162
- Pumping speed S(N₂)
- max. 2.9 m³/h
- Oil capacity
- 0.4 l
- Speed
- max. 3600 1/min
- Electrical (50 Hz)
- 230-240 V ±10% 1.4 A
- Electrical (60 Hz)
- 230-240 V ±10% 1.8 A
- Weight
- 10.5 kg
- Origin
- Made in England by Edwards High Vacuum (Part of BOC Ltd.), C
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Industrial two-stage oil-sealed. Gas-ballast standard. Older but extremely reliable — look for original spec plate, motor type and recent service log.
Manufacturer datasheet — Edwards E2M
- Bauart
- Industrielle zweistufige ölgedichtete Drehschieberpumpe
- Saugvermögen (50 Hz)
- 18 / 28 / 40 / 80 / 160 / 275 m³/h
- Enddruck
- ≤ 7.5 × 10⁻⁴ mbar
- Wasserdampfverträglichkeit
- sehr hoch (mit Gasballast)
- Ölsorte
- Edwards Ultragrade 19/20
- Hersteller
- Edwards Vacuum
Curated from the manufacturer's official datasheet for this family / model. The specific pump may vary slightly by variant.