KW Ultra-Low Temperature Freezers (-90°C) – Witec AG

Engineered for reliable and energy-efficient long-term storage down to -90°C

The K Line represents the state-of-the-art in Ultra-Low Temperature (ULT) freezers, reaching down to -90°C, and offers innovative technical solutions with a wide variety of configurations. Thanks to the extensive work of KWs Research & Development (R&D) department and over 68 years of experience, they offer a complete line of ULT freezers with the highest levels of performance and reliability, characterized by low energy consumption and comprehensive cloud connectivity.

• Stable Temp: ±3°C (Standard), ±0.2°C (U.P.).
• Uniform Temp (U.P.): ±5°C in air.
• Superior Insulation: PUR foam + V.I.P.
• Eco-Friendly: Natural refrigerants, HFC-free foam (low GWP).
• Hygienic Interior: AISI 304 stainless steel.
• Energy Efficient: Lowest consumption, Energy Star certified.
• Industry 4.0 Ready: Network integration.
• Customizable: Tailored to your needs.
• Certified: Meets top international standards.
• Rapid Startup: Ready in no time.
• Fast Temp Recovery: Quick return after opening/loads (+booster).
• Long Power Hold: >5 hours to -50°C.
• Controller Backup: Battery powered during outages.
• Medical Grade Option: Class IIa certified (HPL models).