Eppendorf Innova S44i Refrigerated Double-Stack from 2023
The Eppendorf Innova S44i (refrigerated, double-stack configuration) is a large-capacity, temperature-controlled incubator shaker designed for cell culture, microbial growth, protein expression, and other applications requiring precise temperature and agitation control. It features a spacious chamber with high flask capacity, a robust Eppendorf X-Drive system for smooth high-speed shaking (even when stacked), and refrigeration for temperatures below ambient. The slide-up glass doors and intuitive VisioNize touchscreen interface make it highly user-friendly for 24/7 lab operation.
Key Features:
High Capacity in Compact Footprint — Exceptional flask capacity (e.g., up to ~39 × 1L or higher with optimized platforms) while maintaining a small overall footprint.
Refrigerated Temperature Control — Precise cooling (down to ~4–20°C below ambient) and heating (up to 80°C) with excellent uniformity (±0.25°C at 37°C), using R134A refrigerant. Ideal for temperature-sensitive cultures.
Powerful & Reliable Shaking — Speed range 20–400 rpm (1-inch/25 mm orbit in this unit), with the advanced X-Drive and semi-automatic counterbalance for smooth, stable operation even at high speeds in double/triple stacks.
User-Friendly Design — Large double-pane glass slide-up doors for easy access, VisioNize touch interface with user management, programmable modes, data logging, and connectivity (USB/Ethernet).
Stackable & Flexible — Designed for stable double or triple stacking to maximize lab space; includes imbalance detection, quiet operation (<70 dB), and options like photosynthetic LED lighting.
Other Specifications
Model: Innova S44i
Voltage: 120V, 1800 VA, 50/60 Hz
Refrigerant: R134A (285g)
Comes with our 90-day warranty.
Biotech Equipment Sales, Inc.: based in South San Francisco, the Biotech capital of the world, since 2009. We are dedicated to bringing high-quality pre-owned laboratory instrumentation to our scientific community.
Biotech Equipment Sales, Inc.
226 Miller Ave.
South San Francisco, CA 94080
650-871-5707 office
650-276-7487 fax
sales@biotechequipmentsales.com




