Yiheng DZF-6020 Vacuum Drying Oven

Overview

The Yiheng DZF-6020 Vacuum Drying Oven is a benchtop thermal processing system engineered for precise, oxygen-free drying of heat-sensitive, oxidation-prone, or chemically unstable materials. Operating on the principle of reduced-pressure evaporation—where lowering ambient pressure decreases the boiling point of solvents and moisture—the DZF-6020 enables gentle, low-temperature dehydration without thermal degradation. This makes it especially suitable for pharmaceutical intermediates, polymer precursors, biological extracts, nanomaterials, and hygroscopic compounds where conventional convection ovens risk decomposition, discoloration, or irreversible structural change. Its all-stainless-steel (1Cr18Ni9Ti) chamber resists corrosion from acidic vapors or residual solvents, while the integrated inert gas inlet allows controlled purging with nitrogen or argon to further suppress oxidative pathways during drying or storage.

Key Features

• Benchtop design with compact footprint (730 × 560 × 550 mm), optimized for space-constrained laboratories and QC environments.
• Microprocessor-based PID temperature controller with 0.1 °C resolution and ±1 °C stability across the full operating range (RT+10 °C to 200 °C).
• Dual-layer tempered glass observation window with reinforced safety rating—enables real-time visual monitoring without vacuum interruption.
• Uniformly heated stainless steel chamber (415 × 370 × 345 mm internal volume) with seamless welding and electropolished finish for traceability and cleanability.
• High-integrity silicone door seal, integrally molded to the frame, maintains vacuum integrity down to ≤133 Pa; door tension is fully adjustable for long-term sealing performance.
• Standard inert gas inlet port (¼” NPT) compatible with regulated nitrogen/argon supply systems—supports purge-and-hold protocols per ASTM E145 or ISO 12099.
• Two removable, load-rated stainless steel shelves included; shelf positions are fixed but allow unobstructed airflow and uniform heat distribution.

Sample Compatibility & Compliance

The DZF-6020 accommodates a broad spectrum of sample formats—including Petri dishes, glass vials, aluminum weighing pans, ceramic crucibles, and custom trays—without compromising vacuum integrity or thermal homogeneity. Its chamber geometry supports stacked or staggered loading configurations while maintaining minimum clearance for vapor migration. The oven complies with general safety requirements outlined in IEC 61010-1 (Electrical Equipment for Laboratory Use) and meets material compatibility standards for Class II laboratory equipment under GB/T 25915 (Chinese Cleanroom Standards). When used with optional GLP-compliant accessories—such as an imported analog vacuum gauge (±2% FS accuracy), programmable temperature controller (with audit trail and password protection), or oil mist filtration system—it supports documentation workflows aligned with FDA 21 CFR Part 11 and EU Annex 11 expectations for data integrity.

Software & Data Management

The base configuration includes a stand-alone microcontroller with LED display, manual setpoint adjustment, and over-temperature cut-off (activated at 220 °C). Optional upgrades include a programmable LCD controller supporting up to 30 segment ramp-soak profiles, real-time graphing, USB data logging (CSV export), and event-triggered alarms (e.g., vacuum loss, temperature deviation >±2 °C). All logged parameters—including chamber temperature, elapsed time, and vacuum status—are timestamped and stored in non-volatile memory. When paired with external vacuum pumps (e.g., 2XZ-2 or GLD-N201), the system supports automated pump start/stop sequencing via dry-contact relay output, minimizing operator intervention and enhancing process repeatability.

Applications

• Pharmaceutical R&D: Residual solvent removal from APIs and excipients under inert atmosphere per ICH Q5C guidelines.
• Materials Science: Dehydration of MOFs, aerogels, and battery electrode slurries prior to XRD or BET analysis.
• Food & Agriculture: Moisture content determination in herbs, spices, and botanical extracts per AOAC 950.46.
• Electronics Manufacturing: Outgassing of PCB substrates and encapsulation resins to prevent delamination or void formation.
• Academic Research: Long-duration stabilization of enzyme powders, lyophilized vaccines, and cryo-dried cell cultures.
• Quality Control Labs: Accelerated stability testing per ICH Q1A(R2), including low-humidity conditioning of reference standards.

FAQ

What vacuum level can the DZF-6020 achieve without an external pump?

The DZF-6020 does not include an integrated vacuum pump; it requires connection to an external rotary vane pump (e.g., 2XZ-2 or GLD-N201) to reach its rated limit of ≤133 Pa.
Is the chamber temperature uniformity validated per ISO 17025?

While the DZF-6020 is manufactured to meet internal uniformity specifications (±1 °C), formal ISO/IEC 17025 calibration requires third-party verification using NIST-traceable thermocouples and mapping per ISO 14644-3 or ASTM E2297.
Can the DZF-6020 be used for sterilization or depyrogenation?

No. This unit is not designed for microbial kill or endotoxin inactivation; it lacks the temperature range, dwell time control, and validation support required for autoclave-equivalent processes.
Does the inert gas inlet support mass flow control?

The standard port accepts threaded fittings for manual valve regulation; for precise flow management, users must integrate an external mass flow controller (MFC) upstream of the inlet.
Are replacement gaskets and shelves available as spare parts?

Yes. OEM silicone door gaskets (Part No. DZF-GSK-6020) and 304 stainless steel shelves (Part No. DZF-SHLF-6020) are stocked and shipped globally within 5 business days.