BOXUN BXK-30 Vacuum Drying Oven

Overview

The BOXUN BXK-30 Vacuum Drying Oven is an engineered solution for precise, low-temperature dehydration of thermolabile, oxidation-sensitive, or structurally complex samples under controlled reduced-pressure conditions. Operating on the principle of vacuum-assisted thermal desorption, the BXK-30 lowers the boiling point of volatile components—enabling effective moisture and solvent removal at temperatures significantly below atmospheric boiling points. This physical principle ensures minimal molecular degradation in biological macromolecules, pharmaceutical actives, polymer precursors, and hygroscopic powders. Designed for routine use in GLP-compliant laboratories, the unit integrates robust mechanical architecture with process-critical safety and repeatability features—including real-time vacuum monitoring, programmable ramp-soak profiles, and fail-safe over-temperature cutoff. Its 30 L working volume and stainless steel chamber meet ISO 14644-1 Class 8 cleanroom compatibility requirements for non-sterile preparation environments.

Key Features

• Bottom-mounted heated shelving system with independent PID control per shelf—enabling uniform thermal distribution and eliminating cold spots common in conventional jacket-heated ovens
• Dual-layer tempered glass door with integrated silicone gasket seal, rated for sustained operation at ≤133 Pa vacuum; visual observation without compromising chamber integrity
• Microprocessor-based controller with backlit LCD interface: displays setpoint, actual temperature, vacuum level, elapsed time, and remaining timer duration
• Auto-recovery function preserves user-defined parameters and operational state after power interruption—critical for unattended overnight drying cycles
• Integrated noise-dampened cabinet housing a 2 L/s oil-free vacuum pump, reducing ambient laboratory noise by ≥40 dB(A) versus external pump configurations
• Rounded internal corners and seamless SUS304 chamber construction—facilitating cleaning validation per ASTM E3077-17 guidelines for residue removal verification

Sample Compatibility & Compliance

The BXK-30 accommodates diverse sample formats including lyophilized powders, ceramic green bodies, chromatography columns, MEMS components, and pre-sterilized glassware. Its inert stainless steel chamber and absence of airflow prevent particle displacement—making it suitable for ISO 8573-1 Class 3 compressed air–sensitive applications. The unit complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and supports traceable calibration per ISO/IEC 17025 requirements. Vacuum stability at ≤133 Pa satisfies ASTM D2243-18 criteria for residual moisture determination in polymeric films and USP packaging material drying protocols. Optional NIST-traceable temperature mapping reports are available for IQ/OQ documentation.

Software & Data Management

While the BXK-30 operates via embedded firmware without external PC dependency, its controller logs timestamped temperature and vacuum data internally (10,000-point capacity). USB export functionality enables CSV-formatted output for integration into LIMS or electronic lab notebooks (ELN). Audit trail compliance aligns with FDA 21 CFR Part 11 when paired with BOXUN’s optional secure login module (sold separately), supporting role-based access control and electronic signature capture. All parameter changes—including setpoint adjustments and timer modifications—are recorded with user ID, timestamp, and pre/post-values.

Applications

• Pharmaceutical R&D: Drying of heat-labile APIs prior to HPLC analysis or tablet compression; residual solvent removal from coated granules per ICH Q5C guidelines
• Materials Science: Debinding of metal injection molded (MIM) parts; outgassing of optical substrates prior to thin-film deposition
• Environmental Testing: Moisture content analysis of soil/sediment samples per EPA Method 5035A; preservation of volatile organic compound (VOC) standards
• Academic Research: Preparation of anhydrous catalysts; dehydration of MOF frameworks without structural collapse
• Quality Control Labs: Validation of desiccant performance; accelerated aging studies under controlled humidity-vacuum coupling

FAQ

What vacuum level can the BXK-30 achieve, and how is it measured?
The unit reaches ≤133 Pa (1 Torr) using its integrated 2 L/s diaphragm pump. Vacuum level is monitored continuously via a built-in piezoresistive sensor calibrated to NIST-traceable standards.
Is the heated shelf truly independently controllable?
Yes—the single included shelf features its own thermocouple input and dedicated PID loop, allowing direct display and adjustment of shelf surface temperature separate from chamber air temperature.
Can the BXK-30 be used for sterilization?
No. It is not designed or validated for microbial lethality. For sterilization of glassware, autoclaving or dry-heat sterilization (≥160°C for 2 hours) per ISO 17665-1 is required.
Does the unit support external data logging?
Yes—via USB port, users may export session logs in CSV format compatible with MATLAB, Python pandas, or commercial statistical process control (SPC) software.
What maintenance is required for long-term vacuum integrity?
Quarterly inspection of the silicone door gasket for compression set and annual replacement of the vacuum pump’s exhaust filter are recommended per manufacturer service schedule.