RackSter: revolutionizing aseptic batch changeovers

Apr 27, 2026 | 2 min read

May we introduce the new rockstar of aseptic manufacturing? With RackSter, we have developed a steam-sterilizable mobile multirack containment system for aseptic parts transfer that answers all your needs for fully automated, gloveless liquid filling operations.

Key takeaways
              RackSter: mobile, steam sterilizable multirack system for automated, gloveless aseptic transfer of sterile parts during batch changeovers, replacing manual handling of conventional RTP containers
High parts capacity in a single unit enables faster changeovers with just one docking step and significantly reduced manual effort
Fully Annex 1 compliant solution with reduced contamination risk, designed for high efficiency and an attractive return on investment

            

Anyone involved in the aseptic filling of liquid pharmaceuticals knows the challenge all too well: How can format parts be transferred out of and back into isolators without human intervention? Until now, this process has involved numerous manual steps. Sterile parts must be transferred in numerous RTP containers, costing pharmaceutical and biotech manufacturers as well as CDMOs a lot of valuable time – and ultimately money. We have developed a groundbreaking, fully Annex 1 compliant solution that fundamentally changes aseptic component transfer during batch changeovers.

All in one system

RackSter is the new patented, mobile multirack containment system from Syntegon. Thanks to a high level of automation and only one required docking operation, it significantly shortens batch changeover times, while at the same time reducing contamination risk and increasing both filling line availability and throughput. In combination with our gloveless, fully integrated SynTiso filling platform and its newly designed automated linear stopper sorting system, RackSter unfolds its true value.

In one single smart solution, RackSter provides a capacity that, depending on part geometry and holder configuration, is comparable to the capacity of up to 12 conventional RTP containers. By connecting the mobile vessel to a central media station, the contained components inside are steam-sterilized, followed by drying and cooling. Upon completion of the sterilization cycle, the vessel is transferred back to the isolator and docked to the dedicated RTP port. From that point on, all components are transferred fully automatically and in the correct sequence, eliminating the need for manual handling.

Discover SynTiso

Your benefits at a glance
              Fully automated sterile parts transfer into isolators
Significantly shorter batch changeovers
Up to 90 percent fewer docking operations compared to RTP containers
Lower contamination risk, minimal manual handling
Higher filling line availability and increased throughput

            

Discover RackSter at interpack

If you want to learn how to reduce changeover times and operator intervention in a fully Annex 1 compliant solution, check out our virtual display at interpack (hall 6, booth A31-B31). We will be happy to show you how to increase the output of your future SynTiso line and similar systems and reduce contamination risk through up to 90 percent fewer docking operations during sterile parts transfer.