Application
Vacuum pumps for the extraction of chips, dust and liquids
In extraction, the negative pressure captures chips, sawdust, dust, fumes or liquids directly at the machine and carries them through a line to the separator. Becker describes it as the extraction of mixtures of gas, liquid and solids, in which a separator protects the pump ā from woodworking to the slaughter line. Below you can see how the application works, what vacuum the manufacturers name and which of their series are intended for it ā 366 models from 5 manufacturers.
Compare 366 modelsHow it works
- 366Models
- 26Series
- 5Manufacturers
- 150ā250 mbarOperating pressure for wood dust (Becker)
Touch the points: each part of the system explains itself.
In short
Extraction of chips, dust and liquids: the key facts
- MixturesBecker describes extraction as capturing mixtures of gas, liquid and solids; a separator protects the pump. Becker names VT, VX, KVT, KVX, VTLF, VXLF, O, U, U4, VADS, BCV and RBP.
- Wood dustFor dust-intensive applications, Becker names oil-free pumps with a large filter area: VTLF/VXLF with 244ā570 m³/h at 200ā250 mbar and BCV with 275ā600 m³/h at 150ā200 mbar.
- ChipsFor the continuous extraction of sawdust, Busch names MINK and SAMOS; Elmo Rietschle describes collecting the chips during cutting, milling and grinding.
- Wet processesAtlas Copco describes evisceration as a wet process in which liquid ring vacuum pumps tolerate water, blood and small parts, and names AWS and LRP VSD+ for it; for slaughter waste, Busch names MINK, R5 and TYR.
Operating principle
How it works: Extraction of chips, dust and liquids
The drawing shows the basic principle in section. The systems and pumps of the individual manufacturers differ in detail.
- CaptureThe negative pressure picks up chips, dust, fumes or liquid directly at the machine ā Busch describes the continuous extraction of sawdust, Becker describes extraction systems in slaughter lines.
- SeparationThrough the suction line, the mixture reaches the separator, which separates solids and liquid from the air and so, according to Becker, protects the pump.
- FiltrationA filter holds back the fine dust, and the vacuum pump releases the cleaned air to the exhaust; for wood dust, Becker names pumps with a large filter area.
Vacuum and sizing
Extraction of chips, dust and liquids: how much vacuum is needed
What the manufacturers say about pressure, pumping speed and sizing.
Which vacuum
For dust-intensive applications, Becker names 200ā250 mbar (VTLF/VXLF) and 150ā200 mbar (BCV).
Which pumping speed
For wood dust, Becker names VTLF/VXLF with 244ā570 m³/h and BCV with 275ā600 m³/h, each also in a VARIAIR version.
What determines the sizing
The mixture: according to Becker, dry dust calls for oil-free pumps with a large filter area; according to Atlas Copco, wet processes such as evisceration call for liquid ring vacuum pumps that tolerate water, blood and small parts. For slaughter waste, Busch names MINK, R5 and TYR, and in its product finder also DOLPHIN and SAMOS.
What the manufacturers point out
The separator ahead of the pump and the filter area for dust (both Becker). For foam extraction in rearing tanks, Busch describes a different approach: a water jet under overpressure destroys the foam (SAMOS, TYR).
Technology
Extraction of chips, dust and liquids: the vacuum pumps the manufacturers name
Listed are the series the manufacturer itself names for this application. āShow only ā¦ā sets the filter of the product overview.
Liquid ring vacuum pumps
95 models Ā· 25ā26,000 m³/h
Side channel blowers
95 models Ā· 40ā2,200 m³/h
Oil-lubricated rotary vane vacuum pumps
78 models Ā· 3ā1,800 m³/h
Claw vacuum pumps
44 models Ā· 18ā1,150 m³/h
Dry-running rotary vane vacuum pumps
30 models Ā· 1.9ā495 m³/h
Rotary lobe blowers
16 models Ā· 535ā4,000 m³/h
Screw vacuum pumps
4 models Ā· 290ā1,380 m³/h
Roots vacuum pumps
3 models Ā· 500ā2,000 m³/h
Screw compressors
1 model · 1,230 m³/h
Elmo Rietschle names the application without naming a series for it.
Product overview
Extraction of chips, dust and liquids: all 366 models compared
Use the filters on the left to narrow the selection ā by manufacturer, technology and the modelsā key figures, for 50 or 60 Hz.
Atlas Copco AWS series 22 models
Atlas Copco DBD series 6 models
DBD 90Pumping speed 91 m³/h 50 Hz110 m³/h 60 HzUltimate pressure 650 ā 700 mbarRated motor power 1.1 ā 1.5 kW 50 Hz1.3 ā 1.7 kW 60 HzVariants 2Atlas Copco DBDt series 17 models
Atlas Copco DBS series 29 models
Atlas Copco DBSt series 12 models
Atlas Copco LRP VSD+ series 3 models
Becker BCV series 7 models
Becker KVT series 4 models
Becker KVX series 4 models
Becker O series 6 models
Becker RBP series 3 models
Becker U4 series 6 models
Becker U series 8 models
Becker VADS series 3 models
Becker VTLF series 6 models
Becker VT series 7 models
Becker VXLF series 5 models
Becker VX series 4 models
Busch DOLPHIN series 70 models
Busch MINK series 32 models
Busch R5 series 58 models
Busch SAMOS series 31 models
Busch TYR series 16 models
Edwards EDC series 2 models
Edwards nEDC series 3 models
Leybold SCREWLINE series 2 models
No model matches these filters.
Atlas Copco AWS series 22 models
Atlas Copco DBD series 6 models
Atlas Copco DBDt series 17 models
Atlas Copco DBS series 29 models
Atlas Copco DBSt series 12 models
Atlas Copco LRP VSD+ series 3 models
Becker BCV series 7 models
Becker KVT series 4 models
Becker KVX series 4 models
Becker O series 6 models
Becker RBP series 3 models
Becker U4 series 6 models
Becker U series 8 models
Becker VADS series 3 models
Becker VTLF series 6 models
Becker VT series 7 models
Becker VXLF series 5 models
Becker VX series 4 models
Busch DOLPHIN series 70 models
Busch MINK series 32 models
Busch R5 series 58 models
Busch SAMOS series 31 models
Busch TYR series 16 models
Edwards EDC series 2 models
Edwards nEDC series 3 models
Leybold SCREWLINE series 2 models
Models a manufacturer no longer carries in its current range are listed in its āOutdated modelsā section.
Industries
Extraction of chips, dust and liquids: where the manufacturers name it
The manufacturers list these uses on their own pages.
Woodworking
Becker names the extraction of wood chips and sawdust with BCV and, for wood dust, VTLF, VXLF and BCV; Busch names the continuous extraction of sawdust with MINK and SAMOS; Elmo Rietschle names collecting the chips during cutting, milling and grinding.
Meat, poultry and fish
Atlas Copco describes the evisceration of poultry and meat as a wet process with liquid ring vacuum pumps (AWS, LRP VSD+) and a pipe network that carries slaughter waste to the collection point.
Food and beverage
Atlas Copco names extraction in food processing during evisceration: there, liquid ring vacuum pumps tolerate water, blood and small parts.
Fish farming and aquaculture
Busch names the extraction of offal and trimmings with MINK, R5 and TYR as well as foam extraction in rearing tanks with SAMOS and TYR.
Mechanical engineering and manufacturing
Becker names industrial vacuum cleaners for general mechanical engineering, without describing them; Leybold lists waste management as a field of use of the SCREWLINE.
Packaging
Elmo Rietschle names edge trim extraction (Trim Removal) in packaging; Becker also lists extraction there.
Semiconductors, electronics and displays
Becker names soldering fume extraction in the electronics industry, without describing it in more detail.
Environmental and wastewater
Becker names extraction for waste recycling and air pollution control with BCP; Edwards lists waste disposal as a use of EDC and nEDC.
Frequently asked questions
Extraction of chips, dust and liquids: frequently asked questions
How does extraction with a vacuum pump work?
The vacuum pump generates negative pressure at the extraction point; the inflowing air carries chips, dust, fumes or liquid with it. Becker describes extraction as capturing mixtures of gas, liquid and solids, in which a separator protects the pump. A filter holds back the fine dust, and the cleaned air leaves the pump.
Which vacuum pump for chip extraction?
For wood chips and sawdust, Becker names the BCV claw vacuum pumps; for the continuous extraction of sawdust, Busch names MINK and SAMOS. Elmo Rietschle describes collecting the chips during cutting, milling and grinding, without naming a series. Atlas Copco lists the DB side channel blowers for chips and dust.
Which vacuum pump for wood dust?
For dust-intensive applications, Becker names oil-free pumps with a large filter area: VTLF and VXLF with 244ā570 m³/h at 200ā250 mbar and BCV with 275ā600 m³/h at 150ā200 mbar, each also as a VARIAIR version.
How much vacuum does the extraction of chips and dust need?
For wood dust, Becker names 200ā250 mbar for VTLF/VXLF and 150ā200 mbar for BCV.
Oil-free or oil-lubricated for extraction?
For wood dust, Becker explicitly names oil-free pumps with a large filter area (VTLF, VXLF, BCV). For extraction in general, Becker lists dry-running (VT, VX, KVT, KVX, VTLF, VXLF) and oil-lubricated rotary vane vacuum pumps (O, U, U4) side by side. For wet processes, Atlas Copco describes liquid ring vacuum pumps that tolerate water, blood and small parts.
Which vacuum pump extracts liquids?
Becker describes the extraction of mixtures of gas, liquid and solids with a separator that protects the pump. For evisceration as a wet process, Atlas Copco names liquid ring vacuum pumps (AWS, LRP VSD+) that tolerate water, blood and small parts, and for condensate and paint the DB side channel blowers.
Why does extraction need a separator?
Because chips, liquid and small parts must not get into the pump. According to Becker, the separator protects the pump when mixtures of gas, liquid and solids are extracted. For slaughter waste, Atlas Copco describes a pipe network that carries it to the collection point.
What can be done if dust clogs the vacuum pump?
Check the separator and the filter: according to Becker, the separator protects the pump, and for dust Becker names pumps with a large filter area (VTLF, VXLF, BCV). A full or undersized filter lets dust through; it must match the amount of dust and be cleaned regularly.
Which vacuum pump for slaughter waste and evisceration?
Atlas Copco describes evisceration as a wet process with the AWS and LRP VSD+ liquid ring vacuum pumps. For offal and trimmings, Busch names MINK, R5 and TYR, and in its product finder also DOLPHIN and SAMOS. For bleeding, extraction and spinal cord removal in slaughter lines, Becker names U, U4 and RBP.
Can soldering fumes be extracted with a vacuum pump?
Becker names soldering fume extraction in the electronics industry as an application, without describing it in more detail or naming a series. Becker also lists industrial vacuum cleaners only as a field of use.
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 ā 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 ā we advise you on selection, spare parts and service.







