Ying’an Meicheng LyoDry LSM55P Benchtop Pilot-Scale Freeze Dryer

Overview

The Ying’an Meicheng LyoDry LSM55P is a benchtop pilot-scale freeze dryer engineered for reproducible, scalable lyophilization under controlled vacuum and low-temperature conditions. Based on the fundamental principles of sublimation—where ice transitions directly from solid to vapor phase below the triple point—this unit integrates a high-efficiency refrigeration system, robust stainless steel chamber architecture, and precise vacuum regulation to support method development from early-stage R&D through process validation. Designed and manufactured in the United Kingdom by MechaTech (distributed globally by Ying’an Meicheng), the LSM55P serves as a bridge between laboratory-scale feasibility studies and small-batch production readiness. Its compact footprint (945 × 700 × 950 mm) and integrated casters allow flexible placement adjacent to laminar flow hoods or analytical workstations without requiring dedicated utility infrastructure.

Key Features

• Standard shelf-type configuration with uniform temperature distribution across all shelves—critical for consistent cake morphology and residual moisture control.
• Condenser operating at −55 °C with 44.5 L capacity, optimized for water vapor capture during primary drying of aqueous formulations up to 4–6 L total load volume.
• Ultimate vacuum capability of <20 Pa, achieved via dual-stage oil-sealed rotary vane pump (pump not included; compatible with common ISO-KF 25/40 interfaces).
• Touchscreen human-machine interface (HMI) with intuitive graphical workflow navigation, real-time trend display of shelf temperature, condenser temperature, and chamber pressure.
• Hot-gas defrost system enabling rapid, residue-free condenser regeneration between cycles—reducing downtime and improving throughput consistency.
• Fully welded 304 stainless steel drying chamber and condenser housing, compliant with ISO 14644-1 Class 7 cleanroom-compatible surface finish standards.
• Onboard data logging with timestamped records for shelf temp, chamber pressure, condenser temp, and cycle stage; exportable via USB 2.0 port in CSV format.

Sample Compatibility & Compliance

The LSM55P accommodates a wide range of primary containers—including open trays (bulk drying), serum bottles (2–500 mL), glass vials (2–50 mL), and sealed ampoules—without requiring custom adapters. Its shelf spacing (adjustable in 25 mm increments) supports standard 100 mm and 150 mm vial racks. The system meets mechanical and operational requirements aligned with ISO 22042:2016 (freeze-drying equipment performance specifications) and supports compliance workflows for GLP and GMP environments when paired with validated SOPs. While the unit itself does not carry FDA 21 CFR Part 11 certification out-of-the-box, its audit-trail-capable data logging architecture enables integration into Part 11–compliant electronic record systems via third-party validation packages.

Software & Data Management

The embedded firmware provides full-cycle programmability: pre-freeze ramp rate, hold duration, primary drying ramp/slope control, secondary drying temperature ramp, and endpoint detection logic based on pressure rise test (PRT) correlation. All parameters are stored per protocol with user-defined naming and versioning. Raw time-series data—including shelf setpoint vs. actual, chamber pressure differential, and condenser load trends—are retained internally for ≥1,000 cycles and exported in machine-readable CSV format. No cloud connectivity or proprietary software installation is required; data analysis can be performed using standard tools such as Excel, MATLAB, or Python-based lyo-modelling libraries (e.g., LyoModel, Freezeframe).

Applications

The LSM55P is routinely deployed in pharmaceutical formulation development (e.g., monoclonal antibody, vaccine, and peptide stabilization), biotechnology (enzyme preservation, cell lysate drying), diagnostics (lyophilized reagent kits), and academic research (nanoparticle matrix stabilization, cryo-electron microscopy sample prep). Its thermal stability (<±0.5 °C shelf uniformity) and vacuum repeatability make it suitable for DOE-based optimization of critical process parameters (CPPs) such as shelf temperature ramping profiles and primary drying endpoint determination. It also supports comparative studies across excipient matrices (e.g., trehalose vs. sucrose formulations) under identical hardware conditions.

FAQ

Is the vacuum pump included with the LSM55P?
No—the unit requires an external two-stage oil-sealed rotary vane pump (recommended minimum pumping speed: 8 m³/h) with KF25 or KF40 flange interface.
What is the maximum batch size this system can handle?
For optimal primary drying efficiency, the recommended total ice load is ≤5 L; maximum theoretical capacity is ~6 L depending on product eutectic temperature and container geometry.
Can the LSM55P be used for organic solvent-based formulations?
It is designed exclusively for aqueous systems; use with solvents such as acetone or ethanol is not supported due to condenser temperature limitations and material compatibility constraints.
Does the system support automated cycle transfer between instruments?
Yes—cycle protocols saved via USB can be loaded onto other LSM55P units running identical firmware versions, ensuring inter-instrument method transferability.
Is IQ/OQ documentation available?
Factory-issued Installation Qualification (IQ) and Operational Qualification (OQ) templates are provided upon request and may be executed by qualified internal personnel or certified third-party service providers.