Application

Vacuum pumps for parts cleaning and vacuum cleaning

In parts cleaning under vacuum, the workpieces lie in a closed chamber: Elmo Rietschle describes how pressurised liquid cleans cavities and undercuts, how contaminants evaporate when heated in the vacuum chamber and how residual water in channels and blind holes evaporates. Busch names contamination-free parts cleaning, Atlas Copco the cleaning of bottles before filling, Elmo Rietschle container cleaning. Below you can see how the application works, what vacuum the manufacturers name and which of their series are intended for it – 354 models from 3 manufacturers.

Compare 354 modelsHow it works

  • 354Models
  • 16Series
  • 3Manufacturers
  • 4Industries
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Touch the points: each part of the system explains itself.

In short

Parts cleaning and vacuum cleaning: the key facts

  • Three processesElmo Rietschle describes three steps of parts cleaning under vacuum: flood injection washing, de-oiling by heating in the vacuum chamber, and vacuum drying.
  • Cavities and blind holesAccording to Elmo Rietschle, the pressurised liquid cleans cavities and undercuts, and during drying the residual water in channels and blind holes evaporates – places that stay wet in air.
  • Contamination-freeFor automotive and transport, Busch names cleaning by means of vacuum as contamination-free parts cleaning, and the MINK claw vacuum pumps for it.
  • ManufacturersAtlas Copco (bottle cleaning, roller cleaning with the DB side channel blowers), Busch, Elmo Rietschle (container cleaning with the L series) and Leybold (industrial cleaning, listed only) list the application.
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  • Air and gas (vacuum)
  • Exhaust

Operating principle

How it works: Parts cleaning and vacuum cleaning

The drawing shows the basic principle in section. The systems and pumps of the individual manufacturers differ in detail.

  1. WashingFlood injection washing under vacuum: according to Elmo Rietschle, the pressurised liquid cleans cavities and undercuts of the parts.
  2. De-oilingDe-oiling under vacuum: the parts are heated in the vacuum chamber and the contaminants evaporate (Elmo Rietschle).
  3. DryingVacuum drying: the residual water in channels and blind holes evaporates, as Elmo Rietschle describes it.

Vacuum and sizing

Parts cleaning and vacuum cleaning: how much vacuum is needed

What the manufacturers say about pressure, pumping speed and sizing.

What vacuum

What is described is what the vacuum does: bringing liquid into cavities, letting contaminants and residual water evaporate (Elmo Rietschle), removing residues (Atlas Copco, Elmo Rietschle).

Which pumps

Busch names MINK (claw vacuum pumps), and its product finder also lists COBRA (screw), DOLPHIN (liquid ring), PANDA/PUMA (Roots) and R5 (oil-lubricated rotary vane); for cleaning belt and drum filters MINK, SAMOS and TYR. Elmo Rietschle names the L-BV2, L-BV3, L-BV5, L-BV7 and L-BL2 liquid ring vacuum pumps, Atlas Copco the DBS, DBSt, DBD and DBDt side channel blowers. Leybold lists industrial cleaning for VARODRY.

What the manufacturers point out

In this application the pump has to deal with liquid and vapours: for container cleaning, Elmo Rietschle names liquid ring vacuum pumps, which remove residues; in de-oiling the contaminants evaporate, in drying the residual water. Busch emphasises that the parts cleaning is contamination-free.

Technology

Parts cleaning and vacuum cleaning: the vacuum pumps the manufacturers name

Listed are the series the manufacturer itself names for this application. “Show only …” sets the filter of the product overview.

Leybold names the application without naming a series for it.

Product overview

Parts cleaning and vacuum cleaning: all 354 models compared

Use the filters on the left to narrow the selection – by manufacturer, technology and the models’ key figures, for 50 or 60 Hz.

Atlas Copco DBD series 6 models

DBD 90Pumping speed 91 m³/h 50 Hz110 m³/h 60 HzUltimate pressure 650 – 700 mbarRated motor power 1.1 – 1.5 kW 50 Hz1.3 – 1.7 kW 60 HzVariants 2
DBD 180Pumping speed 181 m³/h 50 Hz218 m³/h 60 HzUltimate pressure 550 – 600 mbarRated motor power 3 – 4 kW 50 Hz3.5 kW 60 HzVariants 2
DBD 240Pumping speed 236 m³/h 50 Hz285 m³/h 60 HzUltimate pressure 550 – 600 mbarRated motor power 4 – 5.5 kW 50 Hz4.8 – 6.5 kW 60 HzVariants 2
DBD 310Pumping speed 310 m³/h 50 Hz374 m³/h 60 HzUltimate pressure 600 mbarRated motor power 5.5 kW 50 Hz6.5 kW 60 HzVariants 1
DBD 390Pumping speed 390 m³/h 50 Hz466 m³/h 60 HzUltimate pressure 600 mbarRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 1
DBD 430Pumping speed 430 m³/h 50 Hz519 m³/h 60 HzUltimate pressure 600 mbarRated motor power 7.5 kW 50 Hz9 – 11 kW 60 HzVariants 2

Atlas Copco DBDt series 17 models

DBDt 70Pumping speed 65 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 560 mbarRated motor power 1.5 kW 50 Hz1.75 kW 60 HzVariants 1
DBDt 110Pumping speed 110 m³/h 50 Hz130 m³/h 60 HzUltimate pressure 800 mbarRated motor power 0.85 kW 50 Hz0.95 kW 60 HzVariants 1
DBDt 120Pumping speed 120 m³/h 50 Hz145 m³/h 60 HzUltimate pressure 500 – 760 mbarRated motor power 1.1 – 4 kW 50 Hz1.3 – 4.6 kW 60 HzVariants 2
DBDt 140Pumping speed 139 m³/h 50 Hz168 m³/h 60 HzUltimate pressure 700 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 1
DBDt 150Pumping speed 150 m³/h 50 Hz180 m³/h 60 HzUltimate pressure 670 mbarRated motor power 2.2 kW 50 Hz2.55 kW 60 HzVariants 1
DBDt 170Pumping speed 165 m³/h 50 Hz195 m³/h 60 HzUltimate pressure 480 mbarRated motor power 5.5 kW 50 Hz6.3 kW 60 HzVariants 1
DBDt 210Pumping speed 215 m³/h 50 Hz259 m³/h 60 HzUltimate pressure 600 – 650 mbarRated motor power 3 – 4 kW 50 Hz3.5 – 4.8 kW 60 HzVariants 2
DBDt 230Pumping speed 230 m³/h 50 Hz275 m³/h 60 HzUltimate pressure 610 – 660 mbarRated motor power 3 – 4 kW 50 Hz3.45 – 4.6 kW 60 HzVariants 2
DBDt 310Pumping speed 312 m³/h 50 Hz376 m³/h 60 HzUltimate pressure 600 – 750 mbarRated motor power 4 – 5.5 kW 50 Hz4.8 – 9 kW 60 HzVariants 3
DBDt 320Pumping speed 320 m³/h 50 Hz380 m³/h 60 HzUltimate pressure 580 mbarRated motor power 5.5 kW 50 Hz6.3 kW 60 HzVariants 1
DBDt 420Pumping speed 416 m³/h 50 Hz502 m³/h 60 HzUltimate pressure 600 – 650 mbarRated motor power 5.5 – 7.5 kW 50 Hz6.5 – 9 kW 60 HzVariants 2
DBDt 520Pumping speed 518 – 520 m³/h 50 Hz620 – 625 m³/h 60 HzUltimate pressure 570 – 650 mbarRated motor power 7.5 – 11 kW 50 Hz8.6 – 12.6 kW 60 HzVariants 4
DBDt 660Pumping speed 657 m³/h 50 Hz793 m³/h 60 HzUltimate pressure 550 – 650 mbarRated motor power 11 – 15 kW 50 Hz13 – 17 kW 60 HzVariants 2
DBDt 800Pumping speed 804 m³/h 50 Hz970 m³/h 60 HzUltimate pressure 550 – 700 mbarRated motor power 11 – 15 kW 50 Hz13 – 22 kW 60 HzVariants 3
DBDt 900Pumping speed 903 m³/h 50 Hz1,089 m³/h 60 HzUltimate pressure 600 – 650 mbarRated motor power 15 – 18.5 kW 50 Hz17 – 22 kW 60 HzVariants 2
DBDt 1010Pumping speed 1,007 m³/h 50 Hz1,216 m³/h 60 HzUltimate pressure 600 – 700 mbarRated motor power 18.5 – 22 kW 50 Hz22 – 26 kW 60 HzVariants 2
DBDt 1110Pumping speed 1,110 m³/h 50 Hz1,310 m³/h 60 HzUltimate pressure 560 – 700 mbarRated motor power 12.5 – 20 kW 50 Hz14.5 – 23 kW 60 HzVariants 2

Atlas Copco DBS series 29 models

DBS 70Pumping speed 74 m³/h 50 Hz89 m³/h 60 HzUltimate pressure 850 – 900 mbarRated motor power 0.37 – 0.55 kW 50 Hz0.42 – 0.65 kW 60 HzVariants 2

Atlas Copco DBSt series 12 models

Busch COBRA Industry series 36 models

Busch DOLPHIN series 70 models

Busch MINK series 32 models

Busch PANDA/PUMA series 26 models

Busch R5 series 58 models

Busch SAMOS series 31 models

Busch TYR series 16 models

Elmo Rietschle L-BL2 series 7 models

Elmo Rietschle L-BV2 series 4 models

Elmo Rietschle L-BV3 series 1 model

Elmo Rietschle L-BV5 series 5 models

Elmo Rietschle L-BV7 series 4 models

Model comparison

Models a manufacturer no longer carries in its current range are listed in its “Outdated models” section.

Industries

Parts cleaning and vacuum cleaning: where the manufacturers name it

The manufacturers list these uses on their own pages.

Mechanical engineering and manufacturing

For parts cleaning in mechanical engineering, Elmo Rietschle describes flood injection washing under vacuum, de-oiling under vacuum and vacuum drying, but names no series for them.

Industry page: Mechanical engineering and manufacturing →

Automotive and transport

For automotive and transport, Busch names cleaning by means of vacuum as contamination-free parts cleaning with the MINK claw vacuum pumps; its product finder lists COBRA, DOLPHIN, MINK, PANDA/PUMA and R5 for it.

Industry page: Automotive and transport →

Beverages and bottling

For beer bottling, Atlas Copco names vacuum cleaning machines that remove residues before filling (without a series); Elmo Rietschle names container cleaning in the beverage industry with liquid ring vacuum pumps of the L series.

Industry page: Beverages and bottling →

Fish farming and aquaculture

For fish farming, Busch lists the cleaning of belt and drum filters with the MINK, SAMOS and TYR series.

Industry page: Fish farming and aquaculture →

Frequently asked questions

Parts cleaning and vacuum cleaning: frequently asked questions

How does parts cleaning under vacuum work?

The parts lie in a closed chamber whose pressure is lowered by a vacuum pump. Elmo Rietschle describes three steps: in flood injection washing, pressurised liquid cleans cavities and undercuts; in de-oiling, the contaminants evaporate when heated in the vacuum chamber; in vacuum drying, the residual water in channels and blind holes evaporates.

What is flood injection washing under vacuum?

Elmo Rietschle names a cleaning step of this kind, in which pressurised liquid cleans the cavities and undercuts of the parts. The vacuum in the chamber ensures that the liquid also reaches places where air would otherwise remain trapped.

How does de-oiling under vacuum work?

The parts are heated in the vacuum chamber; the contaminants evaporate in the process, as Elmo Rietschle describes it. Under vacuum, oil and grease residues evaporate at a lower temperature than in air, and the vapours are extracted.

Why are cleaned parts dried under vacuum?

Because in air, residual water stays in channels and blind holes. Under vacuum it evaporates, as Elmo Rietschle describes for vacuum drying in parts cleaning, and is carried away with the extracted air.

Which vacuum pump is suitable for parts cleaning?

For contamination-free parts cleaning, Busch names its MINK claw vacuum pumps, and its product finder also lists COBRA, DOLPHIN, PANDA/PUMA and R5. Leybold lists industrial cleaning for VARODRY without describing it; VARODRY is not a series in our range. Elmo Rietschle describes the processes but names no series for parts cleaning.

How much vacuum does a vacuum cleaning system need?

That depends on the step: for drying, the pressure must drop far enough for the residual water in channels and blind holes to evaporate; for de-oiling, far enough for the contaminants to evaporate when heated. We determine the pump size with you on the basis of chamber volume, cycle time and process.

Oil-free or oil-lubricated for parts cleaning?

Busch emphasises freedom from contamination and names the dry-running MINK claw vacuum pumps for it; its product finder also lists the dry COBRA screw vacuum pumps, the PANDA/PUMA Roots pumps, but also the oil-lubricated R5 rotary vane vacuum pumps and the DOLPHIN liquid ring vacuum pumps. Where liquid occurs, Elmo Rietschle names liquid ring vacuum pumps (L series for container cleaning).

Which vacuum pump for bottle cleaning in beverage bottling?

For beer bottling, Atlas Copco names vacuum cleaning machines that remove residues before filling, without naming a series. For container cleaning in the beverage industry, Elmo Rietschle names its L-BV2, L-BV3, L-BV5, L-BV7 and L-BL2 liquid ring vacuum pumps, which remove residues.

Which vacuum pump for cleaning belt and drum filters?

Busch lists the cleaning of belt and drum filters, as found in fish farming, with the MINK (claw vacuum pumps), SAMOS (side channel blowers) and TYR (rotary lobe blowers) series.

What is roller cleaning with vacuum?

Atlas Copco lists roller cleaning for its DBS, DBSt, DBD and DBDt side channel blowers without describing the process. For this, a side channel blower supplies an air flow at a slight vacuum.

A single pump or a central vacuum system?

A central system in a room of its own keeps noise and heat away from production and matches its output to the demand. Central vacuum systems are planned and built by Eugen Theis Vakuum, a company of the Ehrler & Beck group – more under Central Vacuum.

Does Ehrler & Beck also supply spare parts and service?

Yes. Ehrler & Beck offers original spare parts and accessories as well as maintenance and repair.

Which pump suits your process?

Tell us the application, the medium and the volume – we advise you on selection, spare parts and service.

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