Global Leader in Laboratory Vacuum Technology


As a respected global leader in laboratory vacuum technology, Welch is renowned for its solution focused vacuum expertise in general and laboratory vacuum pumps in particular.

Serving numerous laboratories and equipment manufacturers around the world, we add value to our customers’ businesses and workflows through unique end-user solutions and innovative OEM products. Due to the variety of laboratory vacuum pump technologies offered, such as rotary vane pumpsdiaphragm pumps, high vacuum pumps, and rotary evaporation technology, we are able to provide the best solution tailored to your laboratory application to enable you to operate at your best.

In addition to our laboratory vacuum pumps, Welch Vacuum offers a wide range of revolutionary products to measure and control your vacuum, vacuum pump oil, and spare parts. Our valued customers and business partners benefit from our exceptional service, valuable training programs, and fast, experienced technical support.

With our key product lines, ranging from rotary vane vacuum pumps, diaphragm vacuum pumps, and systems, WOB-L vacuum pumps, benchtop roots blower systems to vacuum hardware and pump accessories, we offer a large portfolio of laboratory vacuum pumps tailored to your needs.

All vacuum applications such freeze drying, centrifugal concentrators, vacuum filtration, vacuum ovens, vacuum cleaning, and many more are well understood by our sales team, application specialists, and service technicians. Our pump accessories allow you to further tailor our solutions to your lab vacuum application.

Our commitment to developing new technologies, engaging highly qualified specialists, and extensive testing in our in-house laboratories ensure that we meet all our customers’ requirements – both now and in the future.

In case you have any questions regarding our laboratory vacuum pumps or other laboratory and industrial vacuum systems, our Welch Vacuum experts are there for you.

Due to our global presence, our vacuum pumps can be found in many labs around the globe.



Laboratory Vacuum System Applications


Welch provides a range of diaphragm vacuum pumps suitable for vacuum manifolds used for processing of prep kits – such as COVID-19 test kit, plasmid prep kit, and DNA sample prep. The most suitable and in-demand is a quiet and portable MPC301Z diaphragm vacuum pump. It is ideal for vacuum manifolds that hold up to 24 spin-columns.

Welch diaphragm pumps and central vacuum systems find applications in any industry and process that transfers fluids or liquids. Examples include pharma products, bio fluids, as well as corrosive or aggressive chemicals, volatile solvents, viscous, shear sensitive food products, wastewater, solids, oils, or gels.



Vacuum Systems for Laboratory and Industrial Applications


Welch designed a CRVPro Direct Drive Two-Stage Vacuum Pump series to provide deep vacuum for the most demanding applications.

The construction provides the highest reliability for stable operation and long product lifespan for all applications that require high volume evacuation.


Applications and Suitable Product Series


  • Schlenk Line (CRVpro 2/4/6)
  • Freeze Drying (CRVpro 2/4/6/8)
  • Vacuum Oven (CRVpro 8)
  • Glove Box (CRVpro 8/16/24/30)
  • Vacuum Concentrator (CRVpro 6)
  • Short Path (CRVpro 8/30)
  • HVAC (CRVpro 8)
  • Mass Spectrometer (CRVpro 16/24/30)
  • Industrial Applications (CRVpro 4/6/8/16/24/30)


Fluid Aspiration and Filtration Systems Applications


Welch Biovac Aspiration Systems are applicable whenever and wherever you need an accurate aspiration of non-flammable chemical, biological, and medical liquids. They provide a safe transfer in a variety of industries.

The main application fields are the careful aspiration of liquids and fluids, cell culture aspiration, rinsing of sample cultures, or disposal of biological and medical fluids.