Used Vacuum PumpsBuschR5 RA / RB

Busch · R5 RA / RB

Busch R5 RA 0040 F403 — rotary vane, 40 m³/h

Original title: Used BUSCH R5 RA 0040 F 403 RA0040F403 Oil Lubricated VACUUM PUMP

€2.991

Market median (sold): €2.790 from 49 sales in this family

📍 United Kingdom

Suitability for 1 × FD440

Suitable after function test

Item type

Complete pump

Technical

Requirements met

Condition

Not evidenced

Data

Type plate + model

40 m³/h · 210 g/h H₂O · ≤ 0.1 mbar · Gas ballast required with vapour

🟡 OK with refurb

Suitable for FD440/MAX; typical refurb needed before freeze-dryer duty.

Condition from photo

Exterior shows age and dust; oil level/leaks not visible; mounting frame intact; hoses present.

Likely refurb / add-ons

  • Oil change & filter service — €80
  • Exhaust filter replacement — €80
  • Soft-starter (optional) — €280

Watch out for

  • No internal inspection possible from photos; wear state unknown.

WAVE AI estimate from photo + specs only — not a substitute for our physical pre-purchase check.

Specifications

Type
Oil-sealed rotary vane
Pumping speed
~40 m³/h
Water-vapour tolerance
~210 g/h
Ultimate vacuum
≤ 0.1 mbar
Source
eBay
Listing #
eBay #358154272310
Last verified
Aug 6, 2026

Fits WAVE machines: FD440, FD440 MAX

Source: official manufacturer · product page: product family · document: exact model · EN · link checked Aug 5, 2026

Price history Busch R5 RA / RB

Exact model: R5 RA 0040

Median 3.146 · 37 cleaned observations · €1.758–€4.249

Cleaned price history€1,559€3,004€4,448Jun 26Aug 26Asking price: €3,445 · Jun 26Asking price: €2,991 · Jun 26Asking price: €2,223 · Jun 26Asking price: €1,758 · Jun 26Asking price: €3,162 · Jun 26Asking price: €2,511 · Jun 26Asking price: €1,758 · Jun 26Ended listing: €2,991 · Jun 26Ended listing: €3,472 · Jun 26Ended listing: €3,162 · Jun 26Ended listing: €2,511 · Jun 26Ended listing: €1,758 · Jun 26Ended listing: €2,223 · Jun 26Ended listing: €1,758 · Jun 26Asking price: €3,299 · Jun 26Asking price: €3,299 · Jun 26Asking price: €3,162 · Jun 26Asking price: €4,249 · Jun 26Asking price: €3,509 · Jul 26Asking price: €1,953 · Jul 26Asking price: €3,162 · Aug 26Asking price: €2,078 · Aug 26Asking price: €3,146 · Aug 26Asking price: €3,109 · Aug 26Asking price: €3,246 · Aug 26Asking price: €2,147 · Aug 26Asking price: €4,151 · Aug 26Confirmed sold: €3,162 · Aug 26Confirmed sold: €3,246 · Aug 26Confirmed sold: €3,109 · Aug 26Confirmed sold: €2,147 · Aug 26Confirmed sold: €3,146 · Aug 26Confirmed sold: €4,151 · Aug 26Confirmed sold: €2,078 · Aug 26Confirmed sold: €1,758 · Aug 26Confirmed sold: €3,537 · Aug 26Confirmed sold: €3,537 · Aug 26
Asking priceEnded listingConfirmed sold

Type plate (AI reading)

Exact model
BUSCH RA 0040 F 403
Pumping speed S(N₂)
max. 1500 min⁻¹
Oil capacity
0.4 l/min
Displacement
24 kg
Oil Busch Purol quench 100
1.00 l

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.

Traceable assessment

How each pump is assessed

AI helps read images and listing text. The final suitability result is calculated by a fixed engineering rule using evidenced values.

Method version: 5 August 2026

  1. 1

    Identify the item

    The title and photos are checked first to confirm that the listing is a complete vacuum pump — not an accessory, spare part or pump head only.

  2. 2

    Establish evidence

    The type plate and listing provide specific facts. Manufacturer values are used only for a confirmed model; family-level values stay clearly labelled.

  3. 3

    Compare engineering data

    Pumping speed, water-vapour capacity and ultimate pressure are compared with the selected WAVE machine and the chosen safety margins.

  4. 4

    Assess condition separately

    A photo or a seller saying “runs” does not replace a vacuum test. Unknown data remain unknown and never become an automatic green recommendation.

W

WAVE Advisor

Questions & advice · AI

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