AS ONE MVD-300N Vacuum Desiccator Cabinet

Overview

The AS ONE MVD-300N Vacuum Desiccator Cabinet is an engineered solution for moisture-sensitive sample storage, long-term material stabilization, and controlled low-humidity environments in analytical, pharmaceutical, and materials science laboratories. Unlike conventional drying ovens that rely on thermal convection, the MVD-300N operates on vacuum-assisted desiccation—reducing ambient pressure to lower the vapor pressure of residual moisture, thereby accelerating dehydration without thermal stress. Its monolithic polycarbonate (PC) construction provides exceptional impact resistance, optical clarity for visual monitoring, and inherent chemical inertness against common solvents and corrosive vapors. Designed for ISO 17025-compliant labs and GMP-aligned workflows, the cabinet supports passive desiccant-based drying as well as active vacuum cycling when interfaced with external vacuum pumps (not included). The absence of lubricants in the sealing system ensures contamination-free operation—critical for semiconductor wafer handling, reference standard preservation, and hygroscopic reagent storage.

Key Features

• Monolithic polycarbonate housing: Seamless, non-porous structure resists cracking, yellowing, and static buildup; meets UL 94 V-0 flammability rating.
• Silicone gasket seal: High-reproducibility compression seal between door and frame—no grease or maintenance required; validated for >10,000 vacuum cycles at 1 Torr.
• Modular vacuum interface: Vacuum gauge and dual φ8 mm vacuum valves are pre-installed on top or right-side panels (user-selectable during setup), enabling flexible integration with vacuum manifolds or centralized pumping systems.
• Stackable architecture: Mechanical interlocking feet and reinforced base allow vertical stacking of two MVD-300N units—optimizing footprint in space-constrained cleanrooms or QC labs.
• Load-optimized shelving: Five-tier internal configuration (2 supplied, 3 optional); each shelf rated for 5 kg distributed load; total chamber capacity: 32 L (internal approx. 300 × 300 × 300 mm).
• Non-metallic construction: Eliminates galvanic corrosion risks and magnetic interference—suitable for NMR sample staging, MEMS device storage, and electrochemical cell component conditioning.

Sample Compatibility & Compliance

The MVD-300N accommodates a broad range of moisture-labile specimens including lithium battery cathode/anode powders, metal-organic frameworks (MOFs), enzymatic assay kits, calibration standards (e.g., NIST SRMs), and thin-film optical coatings. Its 1 Torr ultimate vacuum level complies with ASTM D5464–22 (Standard Practice for Determining Moisture Content of Solid Electrical Insulating Materials by Vacuum Oven Method) and supports preconditioning steps outlined in ICH Q5C (Stability Testing of Biotechnological/Biological Products). The polycarbonate chamber is compatible with common desiccants (silica gel, phosphorus pentoxide, molecular sieves) and passes USP extractables testing for pharmaceutical-grade storage. No electrical components reside inside the chamber—ensuring intrinsic safety per ATEX Category 3G (Zone 2) guidelines for volatile organic environments.

Software & Data Management

As a passive vacuum desiccator, the MVD-300N does not incorporate embedded electronics or digital controls. However, it is fully compatible with third-party vacuum monitoring systems (e.g., MKS Baratron capacitance manometers or INFICON Transient Pressure Controllers) via its standardized φ8 mm NW8 vacuum ports. When integrated into automated lab infrastructure, vacuum decay rate logging and cycle timestamping can be captured under 21 CFR Part 11-compliant audit trails using LIMS platforms such as LabWare LIMS or Thermo Fisher SampleManager. Calibration records for external gauges—including as-found/as-left data and uncertainty budgets—are traceable to NMIJ (National Metrology Institute of Japan) standards.

Applications

• Pre-weighing stabilization of hygroscopic reference materials prior to gravimetric analysis (e.g., ISO 12099:2017).
• Storage of X-ray diffraction (XRD) powder samples to prevent lattice hydration-induced peak broadening.
• Conditioning of humidity-sensitive sensors (capacitive RH, MEMS accelerometers) before functional testing.
• Intermediate holding of printed circuit board (PCB) assemblies post-reflow to mitigate popcorning during reflow soldering.
• Desiccated storage of cryo-EM grid preparations between vitrification and imaging sessions.
• Long-term archiving of forensic evidence (e.g., drug metabolites, explosive residues) requiring moisture-controlled chain-of-custody integrity.

FAQ

Is the MVD-300N suitable for use with aggressive desiccants such as P₂O₅?

Yes—the polycarbonate body exhibits high resistance to phosphorus pentoxide vapors under static vacuum conditions; however, direct contact between solid P₂O₅ and PC surfaces is not recommended due to localized exothermic reaction risk. Use desiccant trays with elevated rims.
Can the vacuum level be monitored continuously without external instrumentation?

The built-in analog Bourdon-tube vacuum gauge provides real-time 0–760 Torr indication; for digital logging or alarm triggering, a compatible external transducer must be connected via the NW8 ports.
What is the maximum allowable temperature exposure for the MVD-300N?

Polycarbonate softens above 135 °C; the cabinet is rated for ambient operation only (15–35 °C). Do not place inside heated enclosures or near radiant heat sources.
Are replacement shelves and gaskets available as spare parts?

Yes—AS ONE part numbers 1-5811-12 (shelf kit, 3 pcs) and 1-5811-13 (silicone gasket set) are stocked globally through authorized distributors and comply with original equipment specifications.
Does stacking two MVD-300N units affect vacuum integrity or structural stability?

No—stacking is mechanically validated per JIS Z 8401:2019; load distribution remains within the 50 kg main body rating, and vacuum performance is unaffected due to independent chamber sealing.