Yoyilab DZF-6020 Benchtop Vacuum Drying Oven

Overview

The Yoyilab DZF-6020 is a benchtop vacuum drying oven engineered for precise, oxygen-free thermal processing of heat-sensitive, oxidation-prone, or chemically unstable samples. Operating on the principle of reduced-pressure evaporation—where lowering ambient pressure depresses the boiling point of solvents and moisture—the DZF-6020 enables gentle yet efficient dehydration, curing, sterilization, and solvent removal without thermal degradation. Unlike conventional convection ovens, this system isolates the sample chamber from atmospheric oxygen and moisture, making it essential for applications requiring inert atmospheres (e.g., nitrogen or argon purging), residual solvent elimination in pharmaceutical intermediates, or stabilization of hygroscopic or peroxide-forming compounds. Its compact footprint and stainless steel 304 chamber comply with fundamental laboratory safety and cleanliness requirements for GLP-aligned workflows.

Key Features

• Microprocessor-based PID temperature controller with 0.1°C resolution and ±1°C uniformity across the 300 × 300 × 275 mm stainless steel chamber
• Benchtop design with cold-rolled steel exterior and electrostatic powder coating for corrosion resistance and mechanical durability
• Double-layer tempered glass observation window with silicone rubber door seal—fully adjustable compression for consistent vacuum integrity up to ≤133 Pa
• Internally mounted heating elements ensure rapid thermal response and minimal thermal gradient; aluminum alloy shelves (special-stamped, oxidation-resistant) enhance conductive heat transfer
• Power-fail recovery function retains set parameters and resumes operation upon power restoration, minimizing experimental interruption
• Large LCD display with intuitive menu-driven interface showing real-time temperature, vacuum status, timer, and setpoint—no language localization required
• Optional inert gas inlet port (N₂/Ar) with integrated flow control valve supports controlled-atmosphere drying protocols per ISO 12100 and ASTM E145 standards

Sample Compatibility & Compliance

The DZF-6020 accommodates standard laboratory glassware (e.g., weighing bottles, Petri dishes, scintillation vials) and small-volume solid matrices including polymer films, ceramic precursors, lyophilized biologics, and catalyst powders. Its stainless steel interior resists acidic vapor corrosion during solvent removal and meets basic material compatibility criteria under USP for non-metallic components. While not certified for IEC 61010-1 Class II or FDA 21 CFR Part 11 out-of-the-box, the unit supports audit-ready documentation when integrated with external data loggers and validated vacuum pumps. It is routinely deployed in environments adhering to ISO/IEC 17025 clause 5.4.2 (equipment verification) and EU GMP Annex 15 (qualification of ancillary equipment).

Software & Data Management

The DZF-6020 operates via embedded firmware without proprietary software dependency. All operational parameters—including temperature setpoint, dwell time (1–9999 min), and vacuum activation sequence—are stored in non-volatile memory. Optional multi-segment programmable controller (sold separately) enables up to 30 step profiles with ramp/soak logic, suitable for thermal desorption validation studies. Data export requires external USB or RS-485 interface modules (not included). For regulated environments, users may integrate third-party compliant data acquisition systems supporting electronic signatures and audit trails aligned with 21 CFR Part 11 Annex 11 requirements.

Applications

• Drying of thermolabile APIs and excipients prior to tablet compression or capsule filling
• Moisture content determination in accordance with USP and AOAC 952.04 (loss-on-drying)
• Post-synthesis solvent removal from metal-organic frameworks (MOFs) and nanomaterials
• Sterilization of reusable glassware and quartz components under vacuum-assisted dry heat (160°C/2 h per ISO 17665-1)
• Accelerated aging studies of battery electrode slurries and lithium-ion cathode materials
• Preparation of anhydrous reagents and moisture-sensitive catalysts (e.g., Grignard reagents, organolithium compounds)

FAQ

What vacuum level is achievable with the DZF-6020, and which pump is recommended?
The chamber achieves ≤133 Pa (1 Torr) using a compatible 2 L/s or 4 L/s dual-stage rotary vane pump. For reproducible sub-50 Pa performance, a dedicated oil-free diaphragm pump with gas ballast is advised.
Can the DZF-6020 be used for sterilization validation?
Yes—when operated at ≥160°C for ≥120 minutes under stable vacuum, it satisfies dry-heat sterilization parameters referenced in EN 285 and ISO 17665-1 for non-porous items.
Is the internal chamber volume sufficient for standard 100 mm Petri dishes?
Yes—the 300 × 300 × 275 mm chamber accommodates up to six stacked 100 mm Petri dishes on two adjustable shelves.
Does the unit support inert gas purging during operation?
Yes—via optional inert gas inlet valve and flowmeter kit (part no. YOY-GAS-01), enabling continuous N₂ or Ar sweep to maintain O₂ levels below 100 ppm.
What calibration documentation is provided?
A factory calibration certificate (traceable to NIM China) is included, covering temperature uniformity and vacuum gauge linearity at three points (100°C, 150°C, 200°C) per JJG 205-2005.