Vakuum-Bohemia s.r.o
PRODUCTS > Vacuum Pumps > Screw vacuum pumps

Screw vacuum pumps


Lidická kolonie 47
586 01 Jihlava

Phone: +420 567 322 487
Service: +420 567 330 556


VAKUUM BOHEMIA offers sale, servicing, and repair of screw vacuum pumps by Busch, Rietschle and GEV.

Screw vacuum pumps are used in areas were other vacuum pumps cannot be used. Vacuum pumps are dry-running and are ideal for chemical and pharmaceutical applications. Vacuum pumps can pump explosive gases and be installed in areas where there is a risk of explosion (ATEX). Screw vacuum pumps are usually cooled by water. Their accessories include exchangers for air cooling or secondary water cooling. Parts in contact with the medium can have their surfaces modified in order to resist chemicals. Installation of rinsing allows the vacuum pump to be cleaned before stopping or during operation.

Operating principle of screw vacuum pumps

Screw vacuum pumps contain two screw rotors which rotate inside a cylinder. They are synchronised via a precision gear. Gas is captured in the space between the cylinder and the screw and then transported to the exhaust.  

Standard vacuum pumps




ATEX certification

Screw vacuum pumps are oil-free vacuum pumps achieving a fine vacuum in a single stage. To pump corrosive gases, these vacuum pumps include a surface coating.  

Screw vacuum pumps are often supplemented with customized instrumentation, auxiliary vacuum pumps, rinsing and control systems.


Screw vacuum pumps and systems with these pumps are suitable for handling explosive gases or for use in environments with a risk of explosions.

Parameters of screw vacuum pumps​:

  • pumping speed: from 100 m3/h up to 2500 m3/h
  • motor power: from 3.5 kW to 55 kW
  • max. vacuum: 0.05 mbar(abs)
  • external ATEX: zone 1 or 2
  • internal ATEX: zone 0 or 1 or 2
  • TEFLON coating

Advantages of screw vacuum pumps:

  • dry-running
  • contactless rotors and stators
  • high vacuum in a single-stage vacuum pump
  • anti-corrosion surface coating
  • nearly maintenance-free
  • possibility of regulation with a frequency converter

Our services:

  • vacuum systems with screw vacuum pumps
  • sale of screw vacuum pumps
  • sale of spare parts
  • sale of accessories (dampers, air filters, rinsing, frequency converters)
  • on-site servicing
  • repair and overhaul of screw vacuum pumps



  • chemical industry
  • vacuum drying
  • vacuum furnaces
  • metal and other coatings
  • vacuum distillation and drying

Screw vacuum pumps are used in the following industries:

  • chemical and pharmaceutical industries
  • vacuum distillation and vacuum drying
  • metal coating
  • the environment
  • research and development laboratories – other industrial applications

Table of models

ModelPumping speed
Max. vakuum
[(l x w x h) mm]
SC 01351350,15,5DN 40diff. versions2101385 x 495 x 476
SC 02802800,111DN 50diff. versions3101653 x 570x 512
SC 03903900,0315DN 65diff. versions4001749 x 586 x 535
SC 07207200,0322DN 100diff. versions6001982 x 760 x 635
Lidická kolonie 47
586 01 Jihlava
  Tel: +420 567 322 487
Fax: +420 567 330 560
Tel. services: +420 567 330 556
Urgent matters outside office hours: +420 602 806 203

VAKUUM BOHEMIA, s.r.o. © 2016
vacuum pumps, blowers, compressors, vacuum, wholesale, retail, service, Busch, Becker, Leybold, Rietschle