SP Scientific VirTis Ultra Benchtop Pilot-Scale Freeze Dryer

Overview

The SP Scientific VirTis Ultra is a benchtop pilot-scale freeze dryer engineered for reproducible, scalable lyophilization under controlled GMP-adjacent conditions. Based on primary drying principles governed by sublimation kinetics and heat/mass transfer balance, the system operates under high-vacuum environments (≥15 mTorr) to remove water from frozen samples via direct phase transition—bypassing the liquid state. Its design integrates core engineering heritage from VirTis (founded 1953), FTS (precision thermal control systems), and Hull (industrial-scale lyo architecture), enabling seamless translation from lab-scale formulation development to clinical batch production. The Ultra model features an external condenser configuration optimized for high-capacity vapor trapping and thermal stability during extended cycles—critical for preserving protein conformation, nucleic acid integrity, and diagnostic reagent activity.

Key Features

• Shelf temperature range: −55 °C to +65 °C with ±0.5 °C uniformity across full shelf surface (ASTM E2294-compliant mapping)
• External cryogenic condenser operating at −85 °C, rated for 35 L/24 h ice capacity—compatible with aggressive primary drying ramp profiles
• Stoppering-compatible shelf design supporting automated or manual stopper insertion post-drying; accommodates 2 mL vials (14.75 mm OD × 40 mm height) up to 9,270 units per cycle using 10-shelf configuration
• Dual vacuum display: selectable units (mTorr, µbar, Pa) with real-time logging and alarm thresholds configurable per SOP
• Modular architecture permitting integration of optional pressure rise test (PRT), controlled nucleation, and vapor pressure monitoring (VPM) modules
• Stainless steel 316L construction with electropolished surfaces; compliant with ASME BPE-2021 surface finish standards for pharmaceutical contact zones

Sample Compatibility & Compliance

The Ultra supports diverse sample formats including serum vials (2–50 mL), 96-well microplates, scintillation vials, and custom trays for botanical extracts or cell lysates. Its validated shelf geometry ensures uniform thermal exposure across heterogeneous loads—essential for FDA-regulated stability studies (ICH Q5C). All control firmware adheres to 21 CFR Part 11 requirements, featuring electronic signatures, audit trails, and role-based access. System documentation includes IQ/OQ protocols aligned with ISO 9001:2015 and EU Annex 11 expectations. Optional validation packages support GLP and GMP audits for Phase I–III clinical material production.

Software & Data Management

Control is managed via SP Scientific’s LyoLogic® software suite—a Windows-based platform supporting recipe-driven operation, multi-stage ramp/soak profiles, and real-time deviation alerts. Raw sensor data (shelf temp, chamber pressure, condenser temp, vacuum rate) are timestamped and exported in CSV or ASTM E2500-compliant XML format. Integrated data integrity safeguards include automatic backup to network drives, encrypted local storage, and configurable retention policies. Remote monitoring via secure HTTPS interface enables off-site cycle oversight without compromising firewall compliance.

Applications

• Pilot-scale lyophilization of monoclonal antibodies, vaccines, and oligonucleotide therapeutics prior to tech transfer
• Stability testing of diagnostic assay kits under accelerated and real-time storage conditions
• Processing of biobanked tissues and primary cell isolates requiring low-residual moisture (<1.5% w/w)
• Drying of plant-derived active pharmaceutical ingredients (APIs) and botanical concentrates with thermolabile phytochemicals
• Development of lyo formulations for point-of-care lateral flow devices and rapid antigen tests
• Batch processing of serum standards and calibration materials used in clinical chemistry QC workflows

FAQ

What regulatory standards does the Ultra freeze dryer support?
It meets ISO 9001:2015 certification requirements; optional qualification packages align with FDA 21 CFR Part 11, EU GMP Annex 11, and ASTM E2500 for computerized system validation.
Can the system be integrated into a cleanroom environment?
Yes—the Ultra is designed for Class C/D cleanroom installation with HEPA-filtered air purge options and pass-through port configurations.
Is shelf temperature uniformity validated across the full 2.13 m² area?
Yes—thermal mapping per ASTM E2294 confirms ≤±0.5 °C deviation across all operational setpoints and load conditions.
Does the external condenser require liquid nitrogen or closed-loop chiller support?
The standard −85 °C condenser uses a cascade refrigeration system; no external cryogen supply is required.
How is data integrity ensured during long-duration cycles (e.g., >72 h)?
LyoLogic® implements cyclic redundancy checks (CRC), write-once archival storage, and automatic recovery after power interruption without data loss.