BOXUN BZF-30 Vacuum Drying Oven

Overview

The BOXUN BZF-30 Vacuum Drying Oven is an engineered solution for precise, low-temperature moisture removal under controlled reduced-pressure conditions. It operates on the principle of vacuum-assisted thermal desorption—lowering the boiling point of volatile components (e.g., solvents, water, residual monomers) by reducing ambient pressure, thereby enabling effective drying of thermally sensitive, oxidation-prone, or structurally complex samples without thermal degradation. Designed for routine and regulated laboratory environments—including QC labs in pharmaceutical manufacturing, R&D facilities in polymer science, and analytical units in environmental testing—the BZF-30 delivers reproducible process control across diverse sample matrices. Its stainless steel chamber, microprocessor-based temperature regulation, and integrated BX-1 two-stage rotary vane vacuum pump ensure compliance with foundational operational requirements for GLP-aligned workflows.

Key Features

• Stainless steel (SUS304) interior chamber with seamless, semi-circular corner design for ease of cleaning and contamination control.
• Microcomputer-controlled PID temperature system with LCD interface, supporting real-time display of setpoint, actual chamber temperature, timer status, and over-temperature alarm activation.
• Double-layer tempered glass observation door with reinforced safety framing—enabling non-intrusive visual monitoring while maintaining structural integrity under vacuum.
• Modular heated shelving system: heating elements embedded beneath the shelf surface provide uniform thermal distribution; independent zone control allows differential temperature programming per shelf layer (when expanded).
• Adjustable silicone door gasket compression mechanism ensures consistent vacuum seal integrity across repeated cycles; validated leak rate <0.5 Pa/min at 133 Pa operating pressure.
• Power failure recovery function retains user-defined parameters and elapsed timer data, resuming operation automatically upon power restoration—critical for unattended overnight drying protocols.

Sample Compatibility & Compliance

The BZF-30 accommodates a broad spectrum of sample types: lyophilized biological powders, catalyst precursors, ceramic green bodies, thin-film coated substrates, and sterilized glassware. Its vacuum environment eliminates oxidative pathways—making it suitable for drying oxygen-sensitive compounds (e.g., metal-organic frameworks, reduced graphene oxide dispersions) and heat-labile APIs per ICH Q5C guidance. The unit meets mechanical and electrical safety requirements per GB/T 14710 (Chinese National Standard for Environmental Adaptability of Medical Electrical Equipment), and its construction supports alignment with ISO 17025 clause 6.4.2 (equipment suitability verification). While not inherently 21 CFR Part 11 compliant, audit trails and parameter logging can be implemented via external data acquisition systems meeting ALCOA+ principles.

Software & Data Management

The BZF-30 features embedded firmware with non-volatile memory for storing up to 10 user-defined drying profiles, each including target temperature, dwell time, ramp rate, and vacuum hold duration. All operational events—including temperature deviations exceeding ±0.5°C, vacuum loss alerts, and timer completion—are timestamped and stored locally for retrieval via front-panel navigation. For integration into networked lab infrastructures, optional RS-485 communication enables connection to SCADA or LIMS platforms using Modbus RTU protocol. Raw temperature and vacuum pressure logs (sampled at 2-second intervals) are exportable as CSV files for statistical process analysis (e.g., Cpk calculation per ISO 22514-2).

Applications

• Pharmaceutical: Residual solvent removal from active pharmaceutical ingredients (APIs) prior to milling or blending; moisture content validation of excipients per USP <921>.
• Materials Science: Degassing of polymer composites before crosslinking; pre-sintering dehydration of sol-gel derived ceramics.
• Environmental Testing: Gravimetric determination of total suspended solids (TSS) and total dissolved solids (TDS) in wastewater per EPA Method 160.1.
• Academic Research: Stabilization of nanomaterial dispersions; preparation of anhydrous reagents for organometallic synthesis.
• Medical Device Manufacturing: Sterilization cycle validation support for reusable surgical instruments via dry-heat vacuum exposure per ISO 17665-1 Annex B.

FAQ

What vacuum level does the included BX-1 pump achieve?
The BX-1 rotary vane pump reaches a base pressure of ≤6×10⁻² Pa (partial pressure) and ≤133 Pa (total pressure) under standard conditions (25°C, dry air), sufficient for most laboratory-scale vacuum drying applications.
Can multiple shelves be added to the BZF-30?
The standard configuration includes one adjustable shelf; optional second and third shelves are available as accessories (part number: BZF-SH-02, BZF-SH-03), compatible with the multi-zone heating architecture.
Is the temperature sensor calibrated traceable to NIST standards?
The PT100 sensor is factory-calibrated against reference standards accredited to ISO/IEC 17025; full calibration certificate (including uncertainty budget) is provided upon request at time of order.
Does the oven support programmable ramp-soak cycles?
Yes—up to 8-segment ramp-and-soak profiles can be defined, with individual segment control over heating rate (°C/min), target temperature, and hold duration.
What maintenance is required for the BX-1 vacuum pump?
Oil changes every 500 operating hours or biannually (whichever occurs first); inlet filter cleaning after each 100-hour interval; periodic inspection of exhaust valve integrity per manufacturer’s maintenance schedule (document ref: BX-1-MAN-REV4).