Deep‑Frozen Performance. Zero‑Intervention Reliability. Total Payload Flexibility.
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120+ Hours of Deep‑Frozen Protection to provide stability for long‑haul and complex logistics
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Qualified to ISTA 7D international profiles
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Simple Operation/Easy Re-ice: Zero‑Intervention Operation, Pre‑conditioned, ready to load, and available within 48 hours
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Integrated Data Logging for full traceability and compliance throughout transit
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Flexible pack‑outs that adapt to your primary packaging
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Reusable & Sustainable helping you reduce environmental impact and total cost of ownership
- Protect Your Products and Strengthen Your Supply Chain with Breakage Prevention and Full Compliance
Deep‑Frozen Performance. Zero‑Intervention Reliability. Total Payload Flexibility.
-
120+ Hours of Deep‑Frozen Protection to provide stability for long‑haul and complex logistics
-
Qualified to ISTA 7D international profiles
-
Simple Operation/Easy Re-ice: Zero‑Intervention Operation, Pre‑conditioned, ready to load, and available within 48 hours
-
Integrated Data Logging for full traceability and compliance throughout transit
-
Flexi‑Fit pack‑outs to maximize payload efficiency across multiple packaging formats
-
Reusable & Sustainable helping you reduce environmental impact and total cost of ownership
- Protect Your Products and Strengthen Your Supply Chain with Breakage Prevention and Full Compliance
Deep‑Frozen Performance. Zero‑Intervention Reliability. Total Payload Flexibility.
-
120+ Hours of Deep‑Frozen Protection to provide stability for long‑haul and complex logistics
-
Qualified to ISTA 7D international profiles
-
Simple Operation/Easy Re-ice: Zero‑Intervention Operation, Pre‑conditioned, ready to load, and available within 48 hours
-
Integrated Data Logging for full traceability and compliance throughout transit
-
Flexi‑Fit pack‑outs to maximize payload efficiency across multiple packaging formats
-
Reusable & Sustainable helping you reduce environmental impact and total cost of ownership
- Protect Your Products and Strengthen Your Supply Chain with Breakage Prevention and Full Compliance
Extensive range of different pack‑out options
This specialized system comes with various different pack‑out options to match the size and format of your packaging guaranteeing a perfect fit for your bags, pouches, vials and bottles needing a stable temperature-controlled environment.
Compatible Packaging Systems Include:
- Sartorius Celsius® FFT bags
- RoSS® systems
- HDPE & Nalgene bottles
- Single API drums
- Clamshells & cryoboxes
- Cylinders
- CurTec & Mueller drums
- CryoVault containers
Overview
The KT400D Flexi‑Fit Ultra Cold is a next‑generation temperature‑controlled transport system engineered for the safe, simple, and secure movement of high‑value biopharmaceutical materials.
The KT400D is built for the realities of international cold chain distribution from manufacturing sites to fill‑finish facilities, clinical trial depots, and end‑use laboratories.
Designed for the demanding needs of global pharma and biotech supply chains, it delivers 120+ hours of protection at temperatures below –60°C and –70°C with no dry ice top‑ups or external power required.
This system ensures uncompromising stability for Deep‑frozen biologics, bioprocess bags, bulk drug substance (BDS), APIs, Global vaccine distribution, microorganisms, cell lines, QC samples, Temperature‑critical research samples and clinical trial materials .
Recommended Use
Air Freight
Road Freight
Multimodal distribution
Specifications
Our most commonly used pack-outs include:

Get additional product information
Please provide any additional information about your temperature sensitive shipping requirements so that we can best address your needs.
NOTE: Products are not always available in every region. Please contact us for more detail.