Busch · Other
Busch RB 0021 — single-stage rotary vane, 2 bar
Original title: BUSCH RB-0021-B3Z4-ATXX SINGLE STAGE ROTARY VANE VACUUM PUMP €1000 Net Price
📍 Ireland
🟡 OK with refurb
Suitable for WAVE freeze dryers; typical single-stage vane pump. Needs refurbishment assessment.
Condition from photo
Externally clean, well-maintained appearance. No visible oil leaks or damage. Labels legible. Motor and pump housing in good cosmetic condition.
Likely refurb / add-ons
- Oil change and filter service — €80
- Exhaust filter replacement — €60
- Soft-starter (optional) — €280
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
- —
- Year
- 2003 (per nameplate)
- Source
- eBay
- Listing #
- eBay #292304183059
- Last verified
- Jul 26, 2026
Price history— Busch Other
Median €2.074 · 752 observations · €308–€33.945
Type plate (AI reading)
- Exact model
- RB 0021 B 3Z4 ATXX
- Serial
- C0326000156
- Year (plate)
- 2003
- Type
- RB 0021 B 3Z4 ATXX
- Serial Number
- C0326000156
- Pressure
- 2 hPa (mbar)
- Oil ISO VG
- 32 / 0.5 l
- CE Mark
- 03
- Origin
- Made in Switzerland
Auto-extracted from one of the listing photos. Verify on the real unit before purchase.
What to look for on this family
Generic Busch vacuum pump — model family not auto-detected. Send us the listing URL for a free identification + suitability check.