Used Vacuum PumpsBuschR5 RA / RB

Busch · R5 RA / RB

Busch RA 0100 F 503 — rotary vane, 120 m³/h

Original title: Busch RA 0100 F 503 R5 Rotray Vane Vacuum Pump 120m3/h 3.4kw 200/380v-ac

€6.975above market

Market median (sold): €2.822 from 64 sales in this family

📍 USA

🔴 Check carefully

Spec mismatch: 120 m³/h far exceeds WAVE101/FD260 needs; oversized and likely overpriced.

Condition from photo

Exterior clean, no visible oil leaks or damage. Mounted on frame with dual cooling fans and control box. Labels legible.

Likely refurb / add-ons

  • Oil change (Busch VM 100, 2 L) — €40
  • Exhaust filter replacement — €80
  • Soft-starter commissioning — €280

Watch out for

  • Pumping speed 120 m³/h is 12× the typical WAVE requirement (~10 m³/h); severe ov
  • Asking price €6,975 is 2.4× median market value (€2,948); significant premium un
  • Ultimate vacuum ≤0.1 mbar meets spec, but water-vapour tolerance ~50 g/h may be

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
Year
2020 (per nameplate)
Source
eBay
Listing #
eBay #297433138934
Last verified
Jun 12, 2026

Fits WAVE machines: WAVE101, FD260

Price history Busch R5 RA / RB

Median 2.608 · 812 observations · €1–€62.418

€344€31.381€62.418Jan. 26Aug. 26

Recent sales (Busch R5 RA / RB)

Source: eBay sold listings (Apify aggregation). Year inferred from listing title when present.

Type plate (AI reading)

Exact model
RA 0100 F 503
Serial
DEM120210123
Year (plate)
2020
Manufacturer
Busch Produktions GmbH, Schauinslandstrasse 1, D-79689 Maulb
Pump Type
Vacuum Pump
Absolute Pressure
Pabs = 0.1 hPa (mbar)
Maximum Speed
n max = 1800 min⁻¹
Maximum Volume Flow
Vmax = 120 m³/h
Mass
m = 73 kg
Oil Type
Busch VM 100
Oil Quantity
2.00 L
OEM Code
MU 107835430
Approvals
CE, EAC
Origin
Made in Germany

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.

W

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