Shanghai Yiheng DZF-6030B Vacuum Drying Oven
| Brand | Shanghai Yiheng |
|---|---|
| Origin | Shanghai, China |
| Model | DZF-6030B |
| Temperature Range | RT+10 to 65 °C |
| Temperature Uniformity | ±1 °C |
| Temperature Resolution | 0.1 °C |
| Ultimate Vacuum | 133 Pa |
| Interior Dimensions | 320 × 320 × 300 mm (W×D×H) |
| Exterior Dimensions | 610 × 510 × 490 mm (W×D×H) |
| Chamber Material | Stainless Steel (AISI 304) |
| Heating Method | Electric Resistive Heating |
| Power Consumption | 250 W |
| Standard Shelf | 1 pc |
| Door Type | Double-Layer Tempered Glass with Silicone Gasket |
Overview
The Shanghai Yiheng DZF-6030B Vacuum Drying Oven is an entry-level benchtop vacuum oven engineered for controlled moisture removal, solvent evaporation, and oxygen-sensitive thermal processing in academic laboratories, quality control environments, and R&D settings. It operates on the principle of reduced-pressure drying: by evacuating air from the chamber, the boiling point of water and volatile solvents is significantly lowered—enabling effective drying at temperatures well below atmospheric boiling points. This minimizes thermal degradation of heat-labile samples such as pharmaceutical intermediates, polymer precursors, biological extracts, and ceramic powders. Designed for stability and repeatability, the unit maintains a nominal vacuum level of 133 Pa (1 Torr) and supports continuous operation within a precisely regulated temperature range of RT+10 °C to 65 °C—ideal for applications where oxidation inhibition, low-temperature dehydration, or inert-atmosphere annealing is required.
Key Features
- Microprocessor-based PID temperature controller with 0.1 °C resolution and ±1 °C uniformity across the chamber volume—ensuring high reproducibility in time-sensitive drying protocols.
- Double-layer tempered glass observation door with adjustable sealing tension and a molded silicone gasket, providing visual monitoring without compromising vacuum integrity.
- Stainless steel (AISI 304) interior chamber—electropolished and corrosion-resistant—designed for long-term exposure to acidic vapors, residual solvents, and humid condensates.
- Optimized chamber geometry (320 × 320 × 300 mm internal volume) maximizes usable space while maintaining rapid pressure stabilization and thermal homogeneity.
- Energy-efficient 250 W heating system with distributed resistive elements—reducing average heating time by over 50% compared to conventional vacuum ovens operating under identical load and vacuum conditions.
- Front-access vacuum port compatible with standard two-stage rotary vane pumps (not included); integrated pressure relief valve and vacuum gauge connection support safe depressurization and process verification.
Sample Compatibility & Compliance
The DZF-6030B accommodates a broad spectrum of sample formats—including Petri dishes, weighing boats, glass vials, aluminum pans, and custom fixtures—within its 30.7 L internal volume. Its oxygen-free operation enables processing of oxidation-prone materials such as lithium battery cathode precursors, unsaturated fatty acids, metal-organic frameworks (MOFs), and enzymatic assay reagents. While not certified to ISO/IEC 17025 or GLP/GMP out-of-the-box, the instrument’s stable thermal profile and repeatable vacuum performance align with common laboratory practices referenced in ASTM E145 (Standard Specification for Gravity-Convection and Forced-Ventilation Ovens) and USP (Statistical Tools for Analytical Procedure Validation). Users implementing this unit in regulated workflows should validate temperature distribution (via thermocouple mapping) and vacuum decay rates per internal SOPs.
Software & Data Management
The DZF-6030B operates via a standalone front-panel interface with manual setpoint input, real-time digital display of chamber temperature, and basic alarm indicators (over-temperature, door open, vacuum loss). It does not include built-in data logging, Ethernet/USB connectivity, or PC-based control software. For traceability in validated environments, integration with external data acquisition systems (e.g., via 4–20 mA or 0–5 V analog output modules, if retrofitted) is feasible. Process records—including start/end timestamps, target temperature, achieved vacuum level, and duration—must be manually documented or captured using third-party environmental monitoring platforms compliant with FDA 21 CFR Part 11 requirements.
Applications
- Drying hygroscopic reference standards prior to gravimetric analysis (e.g., ASTM D1557, ISO 554).
- Removing residual solvents from coated films, thin-film substrates, and printed electronics without delamination or blistering.
- Conditioning desiccants, molecular sieves, and silica gel for reuse in analytical sample preparation.
- Pre-treating polymer blends and composite resins before rheological or DMA characterization to eliminate plasticizer migration artifacts.
- Stabilizing calibration weights and precision optics components in low-humidity storage protocols.
- Supporting inert-gas purging cycles (N₂ or Ar) when paired with optional gas inlet adapters—enabling controlled atmosphere annealing of sensitive nanomaterials.
FAQ
What vacuum pump is recommended for optimal performance with the DZF-6030B?
A two-stage oil-sealed rotary vane pump capable of achieving ≤10 Pa base pressure is recommended; typical models include the SHZ-D(III) series or equivalent. Pump selection must account for solvent compatibility—use cold traps or scrubbers when evaporating acetone, ethanol, or chlorinated solvents.
Can the DZF-6030B be used for sterilization or depyrogenation?
No. This unit is not designed for microbiological sterilization (which requires ≥121 °C saturated steam) or endotoxin inactivation (requiring ≥250 °C dry-heat cycles). It is strictly intended for moisture/solvent removal and thermal stabilization.
Is the stainless steel chamber electropolished or passivated?
The interior uses AISI 304 stainless steel with a brushed (No. 4) finish. Electropolishing is not standard but can be specified upon request for enhanced cleanability in pharmaceutical or semiconductor applications.
Does the oven support programmable ramp-soak profiles?
No. The DZF-6030B features only single-setpoint temperature control. For multi-step thermal profiles, users must employ external programmable controllers or upgrade to the Yiheng BPG series vacuum ovens with RS485 communication and profile programming capability.
What maintenance is required to sustain vacuum integrity over time?
Monthly inspection of the silicone door gasket for compression set or cracking; annual replacement is advised. Vacuum pump oil should be changed every 200 operational hours or per manufacturer guidelines. Chamber cleaning with 70% isopropyl alcohol is sufficient for routine decontamination—avoid chloride-based cleaners to prevent pitting.
