Used Vacuum Pumps›Busch›R5 RA / RB
Busch · R5 RA / RB
Busch Vacuum Pump R5 RB0021 C 3M5
📍 United Kingdom
🟡 OK with refurb
Suitable for FD260/FD440 but requires standard refurbishment before use.
Condition from photo
Exterior clean, motor finned and intact, nameplate legible. No visible oil leaks or damage. Motor label shows 2024 manufacture.
Likely refurb / add-ons
- Oil change (Busch VSB 032, 0.33 L) – €30
- Exhaust filter replacement – €80
- Gas-ballast service inspection – €60
Watch out for
- Price €819 is ~37× median market value (€22); verify seller justification or neg
- Internal wear state cannot be assessed from exterior photos alone.
WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.
Specifications
- Type
- Oil-sealed rotary vane
- Pumping speed
- ~21 m³/h
- Water-vapour tolerance
- ~110 g/h
- Ultimate vacuum
- ≤ 0.1 mbar
- Year
- 2024 (per nameplate)
- Source
- eBay
- Listing #
- eBay #389541177728
- Last verified
- Jul 26, 2026
Fits WAVE machines: FD260, FD440
Price history— Busch R5 RA / RB
Median €2.785 · 638 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
- R5 RB 0021 C 3M5
- Serial
- CZM124390064
- Year (plate)
- 2024
- Pumping speed
- 20 m³/h
- Ultimate vacuum
- 2 hPa (mbar)
- Max speed
- 3000 min⁻¹
- Oil quantity
- 0.33 L
- Oil type
- BUSCH VSB 032
- Motor voltage
- 220–240 V
- Motor frequency
- 50 Hz
- Motor power
- 0.75 kW
- Motor current
- 6.1 A
- Power factor
- 0.96
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.