Chu Ding Technology DZF-6020 / DZF-6050 / DZF-6051 Vacuum Drying Oven

Overview

The Chu Ding Technology DZF-6020, DZF-6050, and DZF-6051 Vacuum Drying Ovens are precision-engineered laboratory instruments designed for moisture removal, thermal stabilization, and inert-atmosphere processing of heat-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 solvents—the series enables efficient dehydration below conventional thermal thresholds. This is particularly critical for biological macromolecules, pharmaceutical intermediates, polymer precursors, and ceramic slurries where thermal degradation, oxidation, or surface migration must be avoided. Unlike forced-air convection ovens, these models eliminate convective disturbance, preserving sample integrity during desiccation—especially vital for powders, granules, lyophilized matrices, and porous mechanical assemblies.

Key Features

• Three standardized configurations: DZF-6020 (compact benchtop unit), DZF-6050 (mid-capacity chamber), and DZF-6051 (high-power, reinforced stainless-steel chamber)—each optimized for distinct throughput and material compatibility requirements.
• Microprocessor-based PID temperature controller with 0.1°C resolution and ±1°C uniformity across the working volume, ensuring repeatability in validated drying protocols.
• Double-layer tempered glass observation door with adjustable silicone gasket compression system, enabling real-time visual monitoring while maintaining vacuum integrity up to ≤133 Pa.
• Internally mounted heating elements (on insulated chamber partitions) reduce thermal inertia—cutting preheat time by approximately 50% compared to legacy rear-wall heater designs (excluding DZF-6050/DZF-6051 variants).
• Electropolished stainless-steel inner chamber (DZF-6050/DZF-6051) resists corrosion from acidic vapors and residual solvents; cold-rolled steel chamber (DZF-6020) features durable epoxy coating for general-purpose use.
• Programmable timer (1–9999 minutes) supports unattended operation and integration into multi-step thermal protocols; optional LCD display provides simultaneous readout of setpoint, actual temperature, vacuum status, and elapsed time.
• Gas inlet port compatible with nitrogen or argon purging—enabling controlled inert-atmosphere drying essential for lithium battery cathode materials, metal-organic frameworks (MOFs), and oxygen-sensitive catalysts.

Sample Compatibility & Compliance

These ovens accommodate a broad spectrum of sample formats—including Petri dishes, crucibles, glass vials, aluminum pans, and custom jigs—without risk of displacement or cross-contamination. Their sealed architecture meets foundational requirements for Good Laboratory Practice (GLP) and supports audit-ready workflows under ISO/IEC 17025. While not certified to FDA 21 CFR Part 11 out-of-the-box, the devices are compatible with third-party electronic lab notebook (ELN) systems that enforce user authentication, audit trails, and data immutability. All models comply with IEC 61010-1 safety standards for electrical equipment used in laboratory environments. Optional vacuum pump integration (e.g., 2XZ-2 rotary vane pump) ensures rapid evacuation and stable low-pressure maintenance across diverse load conditions.

Software & Data Management

Standalone operation requires no proprietary software; however, analog voltage outputs (0–5 V or 4–20 mA) are available upon request for connection to SCADA systems or centralized HVAC monitoring platforms. For laboratories requiring digital traceability, optional RS485 communication interface (Modbus RTU protocol) enables remote parameter setting, real-time data logging, and alarm event capture via industrial PLCs or LabVIEW-based acquisition systems. Temperature profiles can be exported as CSV files for post-processing in statistical analysis tools (e.g., JMP, Minitab), supporting process validation per ASTM E2500 and USP .

Applications

• Pharmaceutical R&D: Residual solvent removal from active pharmaceutical ingredients (APIs) without polymorphic transition or racemization.
• Materials Science: Pre-sintering dehydration of sol-gel-derived ceramics and metal oxide nanoparticles.
• Environmental Testing: Gravimetric moisture analysis of soil, sludge, and airborne particulate filters per EPA Method 5035A.
• Biotechnology: Stabilization of enzyme powders, vaccine adjuvants, and diagnostic reagent kits under nitrogen blanket.
• Electronics Manufacturing: Outgassing of printed circuit board (PCB) substrates and conformal coatings prior to encapsulation.
• Academic Research: Controlled drying of hydrogels, aerogels, and electrospun nanofibers where pore structure preservation is paramount.

FAQ

What vacuum level is achievable with the standard configuration?
The chamber achieves ≤133 Pa (1 Torr) when paired with an external 2XZ-2 vacuum pump (sold separately). Ultimate vacuum depends on pump performance, seal integrity, and sample outgassing rate.
Can these ovens be used for sterilization?
No—they are not designed or validated for microbial lethality. While high-temperature vacuum cycles may reduce bioburden, they do not meet ISO 11134 or EN 554 requirements for sterilization validation.
Is over-temperature protection included?
Yes. Each unit integrates dual independent thermal cutoffs: a primary PID-controlled heater and a secondary mechanical thermostat set 15°C above maximum operating temperature (265°C), compliant with IEC 61010-1 Class II insulation requirements.
How many shelves are supplied, and are additional ones available?
DZF-6020 ships with one aluminum shelf; DZF-6050 and DZF-6051 include three stainless-steel shelves. Additional shelves—compatible with all three models—are available as accessories (part numbers CD-SH-AL-300, CD-SH-SS-300).
Does the oven support inert gas purging during operation?
Yes. A dedicated 6 mm BSP threaded port allows continuous or pulsed inert gas introduction (N₂, Ar) to maintain oxygen levels below 50 ppm, critical for handling pyrophoric compounds or air-sensitive organometallics.