Boxun BXK-100 Vacuum Drying Oven

Overview

The Boxun BXK-100 Vacuum Drying Oven is an engineered solution for controlled, low-temperature dehydration of thermally sensitive, oxidation-prone, or structurally complex samples. Operating on the principle of reduced-pressure drying—where lowering ambient pressure depresses the boiling point of volatile components—the BXK-100 enables efficient moisture removal below conventional thermal thresholds. This eliminates thermal degradation risks associated with convection-based ovens and supports applications requiring residual solvent elimination, sterile container conditioning, or structural integrity preservation in porous or particulate matrices. Designed for routine use in GLP-compliant laboratories, pharmaceutical QC environments, and academic research facilities, the BXK-100 integrates precision thermal management with vacuum process stability, delivering reproducible drying outcomes across diverse sample classes including lyophilized biomaterials, catalyst precursors, polymer composites, and analytical reference standards.

Key Features

• Heated shelf architecture: Dual stainless-steel shelves incorporate embedded heating elements with independent PID temperature regulation—ensuring uniform thermal distribution across each layer and eliminating cold spots common in jacketed chamber designs.
• High-integrity vacuum system: Integrated 2 L/s rotary vane pump housed within a purpose-built acoustic enclosure reduces operational noise by up to 40 dB(A), minimizes footprint, and maintains stable vacuum levels ≤133 Pa during extended cycles.
• Robust chamber construction: Interior chamber fabricated from electropolished SUS304 stainless steel with radiused corners (R15) facilitates complete residue-free cleaning and resists corrosion from acidic or alkaline volatiles.
• Intelligent microprocessor controller: 4.3-inch LCD interface displays real-time chamber temperature, setpoint, vacuum level, elapsed time, and shelf-specific temperatures; supports programmable ramp-soak profiles, over-temperature cut-off, and auto-recovery after power interruption.
• Optimized sealing & visibility: Dual-pane tempered glass door with fluorosilicone gasket ensures long-term vacuum integrity while enabling non-invasive observation; door torque is fully adjustable to accommodate gasket compression variance over service life.

Sample Compatibility & Compliance

The BXK-100 accommodates heterogeneous sample formats—including powders, granules, glassware, ceramic substrates, and assembled mechanical assemblies—without displacement or agglomeration, owing to its static vacuum environment. Its chamber geometry (450 × 500 × 450 mm) supports standard ISO 8573-1 Class 4 cleanroom-compatible glassware trays and ASTM E145-compliant sample racks. The system meets essential safety and performance benchmarks for laboratory equipment: IEC 61010-1 (Electrical Safety), EN 60529 (IP20 ingress protection), and conforms to vacuum process requirements outlined in USP for sterile container drying validation. While not inherently 21 CFR Part 11 compliant, audit trails and parameter logging can be enabled via optional RS485/Modbus RTU integration with validated LIMS or ELN platforms supporting electronic signature workflows.

Software & Data Management

The onboard controller logs timestamped temperature and vacuum data at user-defined intervals (1–60 sec), storing up to 10,000 records internally. Export is supported via USB flash drive (CSV format) for post-processing in Excel or statistical analysis tools. Optional Ethernet module enables remote monitoring, alarm notification via SMTP, and synchronization with centralized lab asset management systems. All parameter changes—including setpoints, timer values, and shelf enable/disable states—are recorded with operator ID (if configured) and timestamp, fulfilling basic ALCOA+ data integrity expectations for non-GMP research use. Firmware updates are performed offline using signed binary packages to prevent unauthorized modification.

Applications

• Pharmaceutical: Residual solvent removal from active pharmaceutical ingredients (APIs) per ICH Q5C guidelines; depyrogenation of serum bottles and stoppers under validated vacuum cycles.
• Materials Science: Outgassing of metal-organic frameworks (MOFs) and battery electrode coatings prior to BET surface area analysis.
• Environmental Testing: Moisture content determination in soil/sediment samples per EPA Method 5035B, avoiding organic loss during gravimetric analysis.
• Academic Research: Pre-treatment of nanocellulose aerogels, enzymatic immobilization supports, and freeze-dried microbial cultures where structural collapse must be avoided.
• Quality Control Labs: Calibration standard drying per ISO/IEC 17025 clause 7.7—ensuring metrological traceability of mass loss measurements.

FAQ

What vacuum level can the BXK-100 achieve, and how is it verified?
The system reaches ≤133 Pa (1 Torr) under standard operating conditions, measured using the integrated piezoresistive vacuum transducer calibrated against NIST-traceable references during factory acceptance testing.
Can multiple shelf temperatures be set independently?
Yes—each of the two heated shelves features dedicated PT100 sensors and independent PID controllers, allowing simultaneous operation at different setpoints (e.g., 40°C on Shelf 1, 60°C on Shelf 2) with ±0.3°C accuracy.
Is the chamber suitable for drying oxygen-sensitive compounds?
The sealed stainless-steel chamber supports backfilling with inert gas (N₂ or Ar) via optional inlet valve; vacuum/inert purge cycles can be manually programmed to displace atmospheric oxygen prior to heating.
How is temperature uniformity validated across the working volume?
Boxun provides a factory-issued temperature mapping report (per ASTM E2297) conducted at three load conditions (empty, 50% load, full load) using 9-point thermocouple array, demonstrating ≤±0.5°C deviation at 100°C and 150°C setpoints.
Does the system support regulatory audit requirements for electronic records?
While the base configuration meets FDA 21 CFR Part 11’s “closed system” definition for non-clinical use, full compliance requires supplemental validation of user access controls, electronic signatures, and audit trail retention—services available through Boxun’s certified validation partners.