Yiheng DZF-6050 Vacuum Drying Oven

Overview

The Yiheng DZF-6050 Vacuum Drying Oven is a precision-engineered laboratory instrument designed for moisture removal, solvent recovery, thermal stabilization, and oxygen-sensitive processing under controlled low-pressure environments. Operating on the principle of vacuum-assisted drying—where reduced ambient pressure lowers the boiling point of volatile substances—the DZF-6050 enables efficient dehydration of heat-labile samples without thermal degradation. Unlike conventional hot-air ovens, this unit maintains a stable vacuum level down to 133 Pa while delivering precise temperature control across its 415 × 370 × 345 mm stainless steel chamber. Its forced-air convection heating system ensures uniform thermal distribution, minimizing axial and radial gradients that compromise reproducibility in gravimetric analysis, polymer curing, or pharmaceutical stability testing.

Key Features

• High-Integrity Vacuum Architecture: Equipped with a robust mechanical vacuum gauge and an integrated silicone door gasket formed as a single continuous seal, the DZF-6050 sustains vacuum integrity over extended operational cycles—critical for processes requiring inert gas purging (e.g., N₂ or Ar) prior to or during drying.
• Optimized Chamber Design: The rectangular 304 stainless steel interior (1Cr18Ni9Ti grade) features mirror-polished surfaces for corrosion resistance, ease of cleaning, and minimal particulate shedding—meeting baseline requirements for GLP-compliant sample preparation workflows.
• Precision Digital Temperature Control: A microprocessor-based PID controller delivers setpoint accuracy within ±1 °C and resolution of 0.1 °C across the full operating range (RT+10 to 200 °C), with automatic over-temperature cut-off and real-time deviation monitoring.
• Enhanced Visibility & Safety: A dual-layer tempered glass observation window allows unobstructed visual inspection without vacuum loss; the laminated construction meets EN 12150-1 impact resistance standards for laboratory safety compliance.
• Modular Shelf Configuration: Two adjustable 304 stainless steel shelves (included) support flexible load arrangement; optional shelf kits enable vertical spacing optimization for heterogeneous sample geometries (e.g., Petri dishes, vials, crucibles).

Sample Compatibility & Compliance

The DZF-6050 accommodates a broad spectrum of sample types—including powders, granules, thin-film coatings, biological tissues, ceramic precursors, and hygroscopic reagents—without risk of oxidation, hydrolysis, or decomposition. Its vacuum capability supports ASTM E145-22 (Standard Specification for Gravity-Convection and Forced-Ventilation Ovens) and ISO 5725-2:1994 (Accuracy of measurement methods) when validated per user-defined protocols. While not inherently 21 CFR Part 11–compliant, the oven’s analog controls and mechanical vacuum gauge permit straightforward integration into audit-trail-enabled lab management systems via external data loggers calibrated to NIST-traceable references.

Software & Data Management

The DZF-6050 operates via standalone hardware controls and does not include embedded software or network connectivity. However, its analog output signals (optional upon request) can interface with third-party data acquisition systems supporting Modbus RTU or 4–20 mA analog inputs. Users implementing electronic records must pair the unit with validated external logging hardware—such as those compliant with IEC 62304 Class B medical device software standards—to satisfy FDA or EU Annex 11 requirements for data integrity and retention. Calibration certificates traceable to national metrology institutes are available upon request for IQ/OQ documentation packages.

Applications

• Residual solvent determination in active pharmaceutical ingredients (APIs) per USP <467>
• Drying of silica gel, molecular sieves, and desiccant materials for humidity control validation
• Pre-conditioning of composite substrates prior to adhesion or coating trials
• Moisture content analysis in food-grade powders (e.g., milk powder, starch) per AOAC 950.46
• Stabilization of calibration standards for elemental analysis (ICP-OES, AAS)
• Accelerated aging studies of polymers and elastomers under inert atmospheres
• Dehydration of botanical extracts and natural product isolates sensitive to thermal oxidation

FAQ

What vacuum level can the DZF-6050 achieve, and how is it measured?
The unit achieves a base vacuum of ≤133 Pa (1 Torr) using a built-in mechanical vacuum pump interface; vacuum level is monitored via an analog Bourdon-tube pressure gauge calibrated for rough-vacuum ranges.
Is the chamber suitable for acidic or halogenated solvent exposure?
The 304 stainless steel interior offers moderate resistance to organic solvents but is not recommended for prolonged contact with concentrated acids (e.g., HCl, HNO₃) or halogenated compounds (e.g., chloroform, carbon tetrachloride); 316 stainless steel variants are available for enhanced corrosion resistance.
Can inert gas be introduced during operation?
Yes—the dual-layer door includes a dedicated inert gas inlet port compatible with standard 6 mm OD tubing, enabling continuous purging or static blanket environments.
What maintenance is required for long-term vacuum performance?
Routine inspection of the silicone door gasket for compression set or cracking is advised every 6 months; vacuum pump oil should be changed per manufacturer specifications (typically every 200–300 hours of cumulative pump runtime).
Does the DZF-6050 comply with CE or UL safety directives?
The unit conforms to IEC 61010-1:2010 for electrical safety in laboratory equipment; CE marking is applied for EU market access, though UL listing requires additional regional certification pathways.