Aseptic block for low-acid products
A protected atmosphere for your product
The Krones aseptic systems family includes experts for all kinds of different sterilisation methods and products to be filled. One of them is the Contipure AseptBloc DN, which is specialised on low-acid products and fully meets their requirements. Regardless of whether you are blow moulding, filling or capping, with the Contipure AseptBloc DN every production step is safely included in an aseptic processing chain.
At a glance
- Design:
- Preform sterilisation module
- Aseptic blow moulder
- Aseptic filler and capper - Suitable for:
- Low-acid products
- Cylindrical and square PET containers
- Standard and lightweight containers - Output: up to 55,200 containers per hour
- Only one sterilising medium: gaseous hydrogen peroxide (H2O2)
DN = Dry, Neutral

3-A certification for the Contipure AseptBloc
Beverage containers made from rPET

Material properties, processability, food grade quality: you can find all kinds of interesting facts about the use of recycled PET in our free white paper.
The design

Benefits to you
Triple protection
The all-round treatment with gaseous H2O2 sterilises the entire preform surface at once, both the inside and the neck area on the outside.
Gentle preform treatment
The sterilisation of the preforms hardly leaves any residues: This is because the surface enlarges by many times and the residues of the sterilisation medium are diluted accordingly.
High availability
The entire block is in production for 168 hours non-stop and only two and a half hours later is ready to start again.
Proof of safety
In the proof of concept, the AseptBloc DN has proven that it meets the requirements of the FDA criteria for filling low-acid products.
Microbiological safety
During the operation, the system does not consume any water. Therefore, microbiological organisms have no living space whatsoever.
Slim peripherals
The block does not need any sterile UHT nor a hygiene centre.
Pinpoint production
Filling to the last drop: The system uses the remaining product quantity in order to calculate exactly how many more PET containers and caps are still to be sterilised.
Fully-automatic change-over
Handling parts change-over at the filler and the capper can be performed up to a defined output without any manual interference.
Tethered caps: Get ready!
Everything you need for PET: the closed plastics cycle under one roof
Can plastic packages be sustainable? Yes, they can, if the process for producing them is resource-economical and if they are kept in a closed cycle. You can achieve both of this with technology from Krones and the services it provides. Starting with material-saving packaging design, then low-energy container production right through to recovery of used plastics: Krones offers PET bottles and other packages a chance for a sustainable, eco-compatible life-cycle – not only once, mind you, but again and again.