Description
Flexsafe® RM 50L optical single-use bioreactor bags are designed for cell cultivation with low shear stress using rocking-motion mixing technology. Sized at 50 L and supplied as a pack of 5 pieces, these optical bags integrate pre-calibrated single-use opto-chemical pH and dissolved-oxygen sensors for continuous monitoring. When paired with a Biostat® RM control tower, they support high-end cultivation with full process automation across the Flexsafe® RM range (2 L to 200 L). Bags up to 50 L are also offered with 38 mm screw caps, allowing insertion or removal of larger objects such as microcarriers inside a laminar-flow cabinet. The format fits Biostat® RM bioreactors and is intended for laboratories and bioprocess workflows that require sterile, single-use containment with integrated sensing. Manufactured by Sartorius, the bags combine optical sensor integration with rocking-motion mixing to reduce mechanical stress on sensitive cultures while enabling automated pH and DO control. Net weight is listed as 8,000 kg per pack configuration in the product data. Ideal for research and production cell-culture applications needing reliable single-use bioreactor performance.
Key features
- Pack size: 5 pc(s)
- Storage temperature: Room Temperature
- Product type: Single-use bioreactor bag, optical
- Working volume: 50 L
- Sensors: Pre-calibrated opto-chemical pH and DO
- Mixing technology: Rocking motion, low shear
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Questions about Flexsafe RM 50L optical (5 pcs)
What is this article?
Flexsafe RM 50L optical (5 pcs) is the article on this page. Luminix Health distributes Sartorius for laboratory use. It sits in Cell culture accessories, inside Cell culture, in Life Science & Microbiology.
Cell-culture accessories are the pipettes, the filters and the small tools that stay sterile around a cabinet: aspirators, tube caps, rack inserts. The point is sterility and a material that does not leach into the medium. A non-sterile version of the same shape is a different article.
Cell culture grows cells outside the body. The medium, often with serum, supplies what the flask does not. A flask or a dish is the vessel, treated so the cells attach or left untreated so they float. Contamination by microbes, or by another cell line, is the ordinary failure. Cold-chain articles in this work, including serum, are never part of free standard delivery. Lines are catalogued by ATCC. Papers are on PubMed. Practice is summarised by the WHO laboratory biosafety topic.
Which category should I open next?
The category is Cell culture. The sub-category is Cell culture accessories. The catalogue is Life Science & Microbiology.
Shelves beside this one are Cell culture media & sera, Cell culture flasks, Cell culture plates & dishes and Cell strainers, inserts & scrapers.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

