Used Vacuum PumpsBuschR5 RA / RB

Busch · R5 RA / RB

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

Original title: 2023 Busch R5 RA 0040 F 503 Rotary Vane Vacuum Pump

€2.846

Market median (sold): €2.325 from 41 sales in this family

📍 USA · Yr 2023

Suitability for 1 × FD440

Not suitable

Item type

Not confirmed

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

🟢 Good fit

Excellent match for FD440/FD440 MAX. 2023 unit, well-maintained.

Condition from photo

Clean exterior, intact labels, no visible oil leaks, mounted on frame with motor and control box.

Likely refurb / add-ons

  • Oil change (Busch VM 100, 1 L) — €35
  • Exhaust filter replacement — €80
  • Soft-starter module — €280

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
Year
2023
Source
eBay
Listing #
eBay #327064317501
Last verified
Jun 23, 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 2.991 · 27 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: €2,511 · Jun 26Asking price: €1,758 · Jun 26Ended listing: €2,991 · Jun 26Ended listing: €3,472 · 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: €4,249 · Jun 26Asking price: €3,509 · Jul 26Asking price: €1,953 · Jul 26Confirmed sold: €1,758 · Aug 26Confirmed sold: €3,537 · Aug 26Confirmed sold: €3,537 · Aug 26Confirmed sold: €3,246 · Aug 26Asking price: €3,146 · Aug 26Asking price: €2,147 · Aug 26Asking price: €3,246 · Aug 26Asking price: €3,109 · Aug 26Asking price: €4,151 · Aug 26Asking price: €2,078 · Aug 26
Asking priceEnded listingConfirmed sold

Type plate (AI reading)

Exact model
RA 0040 F 503
Serial
DEM123200300
Year (plate)
2023
Vacuum Pump
RA 0040 F 503
Absolute pressure
1.5 mbar
Pumping speed
48 m³/h
Maximum speed
1800 1/min
Oil type
Busch VM 100
Oil quantity
1 l
Mass
50 kg
Manufacturer
Busch Produktions GmbH, Schauinslandstrasse 1, D-79689 Maulb
Origin
Made in Germany
Approvals
UK EAEC CA

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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