Proxcys B.V. is the world's primary producer of high performance low pressure cGMP compliant radial chromatography equipment

Micro RFC

Micro RFC columns: chromatographic performance of the radial column format in analytical scale volumes. Since the Micro RFC columns are an accurate scale-down...

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Lab HP-RFC columns offer “Radical” Chromatographic performance on bench scale. Ultra fast processing in robust processes with any resin and easy handling. Lab columns' suitability...
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SUPR columns

Extended range Micro to Process RFC columns in a prepacked-prevalidated format "plug-and-produce". Prepacked columns can be used for extended periods, dedicated projects...
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Pilot Process Industrial RFC

Proxcys High-Performance Radial Flow Chromatography (HP-RFC) columns are applicable from Pilot to Industrial scale operations. The "work-horses"...

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Accessories & Systems

Proxcys offers a full range of cGMP compliant accessories including sanitary Bubble traps, Intelligent packing systems and miscellaneous...
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Custom Engineering

Proxcys will develop and supply ancillary equipment that support your Downstream Processing tasks and handling. Sophisticated 3D modelling will allow fast turnaround...
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Proxcys Downstream Biosystems

PROXCYS Downstream Biosystems is headquartered in Nieuw-Amsterdam (Netherlands). Proxcys B.V. is the world's primary producer of High Performance low pressure cGMP compliant Radial Flow Chromatography equipment.

More than a decade of DSP and engineering experience forms the basis for the development of the unique proprietary Annular Packing system that results in superior column efficiency, symmetry and packed bed stability. cGMP compliant Laboratory, Pilot and Process columns are available in Stainless Steel and/or USP Class VI approved plastics and come with a comprehensive documentation package.

PROXCYS' systems are dedicated for the purification of biologicals from various sources like Human blood plasma, cell culture, fermentation, homogenates or milk.



Proxcys' mission is to be a reliable partner. Manufacturer, supplier and support organisation of innovative high performance process & industrial scale purification technology.


“Organic growth” business model

Development of quality DSP products for the Bio-Pharmaceutical industry requires focus, time and patience. At the start of Proxcys in 2003 this was the main reason for Marcel Raedts, current owner and CEO, to decide for the "organic growth" business model. In 2010 Proxcys moved into a new and larger facility of > 1000m2 in Nieuw-Amsterdam where clean assembly & production possibilities are created. 2011 is the start of the Prepacked & Prevalidated columns that highly facilitate the entry and acceptance of RFC technology. 2016 Proxcys introduced the Tripod system, a column design with the smallest environmental footprint of process scale columns supporting awareness and sustainability programs.


Core activities Nieuw-Amsterdam

  • Sales & marketing
  • Technical development & documentation
  • Assembly & testing
  • Packing & validation
  • Engineering & prototyping
  • Finance & admin

Our Clients

Proxcys B.V. is the world's primary producer of high performance low pressure cGMP compliant radial chromatography equipment.


Proxcys BV

Bedrijvenweg 4

NL-7833 JH Nieuw-Amsterdam

The Netherlands

Phone: +31 591 677 447

Fax: +31 591 677 448