Used Vacuum Pumps›Busch›R5 RA / RB
Busch · R5 RA / RB
Busch R5 RA — rotary vane, 330 CFM
Original title: Busch RAU400 B033 1001 Vacuum Pump Displacement 330CFM
📍 USA
🟡 OK with refurb
Suitable for WAVE101/FD260; typical refurbishment needed before use.
Condition from photo
Exterior shows age and surface corrosion; oil level and internal wear cannot be assessed from photos. Hoses present, mounting frame intact.
Likely refurb / add-ons
- Oil change and filter service — €80–120
- Exhaust filter replacement — €60–100
- Soft-starter (optional, for grid stability) — €250–350
Watch out for
- Surface corrosion visible on pump body; internal condition unknown.
- No recent service history provided; full inspection recommended before operation
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Oil-sealed rotary vane
- Pumping speed
- ~10 m³/h
- Water-vapour tolerance
- ~50 g/h
- Ultimate vacuum
- ≤ 0.1 mbar
- Source
- eBay
- Listing #
- eBay #277705319036
- Last verified
- Jul 5, 2026
Fits WAVE machines: WAVE101, FD260
Price history— Busch R5 RA / RB
Median €2.576 · 571 observations · €1–€45.105
Recent sales (Busch R5 RA / RB)
- €4.836May 19, 2026Busch RA 0063 F 503 Oil Lubricated VACUUM PUMP 0,1hPa(mbar) RA0063F DHL/Fedex
- €1.060Jan 21, 2026BUSCH R5 RA 0010 C Vacuum Pump Salvage from a closed factory
Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.
Type plate (AI reading)
- Exact model
- RAU400 B033-1001
- Serial
- C3106
- Type
- RAU400 B033-1001
- Displacement
- 330 CFM
- Vacuum
- 0.5 mbar
- Weight
- 14 kg
- CFM
- Torr QT
- Origin
- Made in U.S.A.
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Oil-sealed rotary vane with gas-ballast. Robust workhorse. Check ballast valve is intact and oil is clear amber. Run gas-ballast open under water vapour load.
Manufacturer datasheet — Busch R5 RA / RB
- Bauart
- Einstufige ölgedichtete Drehschieberpumpe mit Gasballast
- Saugvermögen (50 Hz)
- 10 – 100 m³/h (RA 0010 – RA 0100)
- Enddruck
- ≤ 0.1 mbar
- Wasserdampfverträglichkeit
- ca. 50 – 330 g/h
- Saugstutzen
- DN 25/40 ISO-KF
- Motorleistung
- 0.55 – 3.0 kW
- Drehzahl (50 Hz)
- 1500 1/min
- Ölsorte
- Busch VM 100 (mineralisch)
- Ölfüllung
- 0.5 – 4.0 l
- Ölwechsel-Intervall
- ca. 500 – 2000 Bh, je nach Anwendung
- Schutzart Motor
- IP55
- Hersteller
- Busch Vacuum Solutions
Curated from the manufacturer's official datasheet for this family / model. The specific pump may vary slightly by variant.