Bags for Bulk – the versatile solution for safe lyophilization

  • Combine with single-use or
multiple-use trays

  • Different closing systems

  • Fly-out stays inside the bag

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Exploded view of Lyoprotect Bag for Bulk with red and white closing stick. A tray is partly inside the bag.

Optimal adaptability for your freeze-drying process

Are you searching for a simple solution for your individual freeze-drying situation?

What can be easier than using the open containers of your choice and safely enclosing them with our Lyoprotect® Bags for Bulk? The high-performance membrane ensures safe lyophilization without compromising the performance of the cycle. Opt for a multiple-use closing system or choose a heat-sealing strip for flexible closure.

Features of the Lyoprotect® Bags for Bulk

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Versatile application

Simply place a single-use or a multiple-use container inside the Bag for Bulk to keep fly-out inside and protect your contents. After closing the bag, it can safely be moved to the freeze dryer.

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Safe sublimation

The Lyoprotect® Membrane on the upper side of the bag acts as a sterile barrier and ensures zero fly-out. Vapor effortlessly passes through the hydrophobic membrane, which supports fast drying.

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Customized sizes

The bags are manufactured in individual dimensions for optimized footprint utilization of the freeze dryer shelves. They can even come with a filler assembly to facilitate your processes.

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High quality

Our bags are manufactured in Germany, with 100% visual inspection of the individual components and final bags. Extraction study plus toxicological assessment and validation guide available.

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Sterilization

All components are suited for sterilization in an autoclave at 121°C (250°F) for 20 minutes. Sterilization validation available on request. APIs can be aseptically produced in compliance with GMP.

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Closure of choice

Safely close the bag with our multiple-use closing stick. For a more flexible solution, or if space is an issue, the bags are also available with a heat-sealing strip on one side (to be joined with a heat sealer).

Lyoprotect® Bags for Bulk

The flexible solution for bulk lyophilization without fly-out.

Lyoprotect Bag for Bulk with a plastic tray inside and a red and white closing stick lying next to it

WITH CLOSING STICK

Tailor-made Bag for Bulk, enclosing an open single-use tray. Firm closure with HDPE closing stick and counterpart with omega profile and safety clips.

WITH HEAT-SEALING STRIP

WITH FILLER ASSEMBLY

Functional Claims

Bacteria-proof bag with vapor-permeable membrane

Very high sublimation rate

No fly-out

No cross-contamination

Safe compliance with occupational exposure limits (OEL 100 ng/m³) with flexible isolators

Gloved hands inserting a steel tray into a Lyoprotect Bag for Bulk. The closing system can be seen in the left upper corner.

Quality Claims

100% visual inspection of bags and components

Full traceability and receiving inspection of plastics with FTIR spectrometer

BSE/TSE safe and complies with (EU) No 10/2011 regarding food safety

Bag fulfills requirements of SVP (sub visible particles) acc. to standard for LVP (large volume parenterals).

Endotoxin test, extractables profile, toxicological evaluation

Made in Germany

A Lyoprotect Bag for Bulk with heat-sealing strip is held open by gloved hands.

Dimensions

Product nameMaterialDimensionsVolumes
LPSU-Bag-xx-xxePTFE membrane, PP bottom filmmax. 460 x 900 mm
LPSU-Bag-xx-xx-HSxePTFE membrane, PP bottom film and heat-sealing stripmax. 460 x 900 mm
LPSU-BagFA-xx-xx-OePTFE membrane, PP bottom film and
 PP filler assemblymax. 460 x 900 mmmax. 4,200 ml

Useful resources

DATASHEET

All Product Features at a Glance

Overview of all the technical features of Lyoprotect® Bags for Bulk

Download

OPERATING INSTRUCTIONS

Operation and Handling

How to load, handle and close Lyoprotect® Bags

Download

OPERATING INSTRUCTIONS

Sterilization Recommendation

Autoclaving, packing, unpacking and decontamination of Lyoprotect® Bags.

Download

PRODUCT CATALOG

Comprehensive Product Information

Explore the application range, dimensions and order numbers of our products.

Download

Related Products

Combine the Lyoprotect® Bag for Bulk with the open Single-use Tray PP. Choose between a heat-sealing closure or the reliable Closing Stick.

View all products

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