Yiheng DZF-6050 Vacuum Drying Oven

Overview

The Yiheng DZF-6050 Vacuum Drying Oven is an engineered solution for thermal processing under reduced-pressure environments, designed specifically for laboratories requiring precise moisture removal, solvent recovery, heat-sensitive sample stabilization, or oxidation-free drying. It operates on the principle of lowering the boiling point of volatile components via vacuum application—enabling effective drying at significantly lower temperatures than atmospheric ovens. This physical mechanism minimizes thermal degradation of polymers, pharmaceutical intermediates, biological extracts, and electronic components while maintaining structural integrity and chemical fidelity. The unit integrates a robust forced-air convection heating system with a sealed stainless-steel chamber and mechanical vacuum regulation, ensuring reproducible process conditions across batch operations. Its design complies with fundamental laboratory safety and operational expectations for Class II vacuum thermal equipment per IEC 61010-1 and conforms to general requirements for laboratory ovens outlined in ISO 17025-accredited environments.

Key Features

• High-integrity chamber constructed from electropolished AISI 304 stainless steel (1Cr18Ni9Ti), offering superior corrosion resistance, non-reactivity with organic solvents, and ease of decontamination.
• Double-layer tempered glass observation door with silicone gasket sealing system—designed for visual monitoring without vacuum loss and compatible with inert gas purging (N₂ or Ar) for oxygen-sensitive applications.
• Precision microprocessor-based temperature controller with PID algorithm, delivering stable setpoint maintenance within ±1 °C and resolution of 0.1 °C across the full operating range (RT + 10 °C to 200 °C).
• Adjustable door latch mechanism and molded synthetic silicone door seal ensure consistent vacuum integrity up to 133 Pa, verified by integrated mechanical vacuum gauge calibrated to ISO 2787 standards.
• Forced-air convection system with rear-mounted heating elements and optimized airflow distribution ensures uniform thermal exposure throughout the 53.5 L working volume (415 × 370 × 345 mm).
• Two removable, height-adjustable stainless-steel shelves included as standard; compatible with optional shelf extension kits for multi-layer sample staging.

Sample Compatibility & Compliance

The DZF-6050 supports a broad spectrum of sample types including lyophilized biomaterials, ceramic precursors, polymer films, battery electrode coatings, and analytical reference standards. Its inert atmosphere capability makes it suitable for ASTM D2243 (polymer drying), USP packaging material conditioning, and ISO 11358-1 (thermal analysis sample prep). While not certified for GMP manufacturing use out-of-the-box, the oven’s repeatable thermal profile, traceable calibration points, and documented vacuum decay performance support GLP-aligned validation protocols. All electrical components meet CE marking requirements per EN 61000-6-3 (EMC) and EN 61000-6-2 (immunity); no hazardous substances are used in construction per RoHS Directive 2011/65/EU.

Software & Data Management

The DZF-6050 operates via standalone hardware control—no embedded software or network interface is provided. Temperature setpoints, dwell times, and vacuum initiation are manually configured using front-panel keys and analog gauges. For regulated environments requiring audit trails, external data loggers (e.g., Omega OM-DAQPRO-5300 series) may be connected via thermocouple inputs (Type K, supplied) and vacuum transducer outputs (0–10 V or 4–20 mA, optional upgrade). Raw process records—including time-stamped temperature/vacuum readings—can be exported to CSV for integration into LIMS or electronic lab notebooks compliant with FDA 21 CFR Part 11 when paired with validated third-party acquisition systems.

Applications

• Residual solvent removal from APIs and excipients prior to tablet compression or capsule filling.
• Drying of hygroscopic metal-organic frameworks (MOFs) without framework collapse.
• Pre-conditioning of humidity-sensitive sensors and MEMS devices before hermetic sealing.
• Stabilization of enzyme powders and freeze-dried vaccines under nitrogen blanket.
• Thermal aging studies of encapsulants and conformal coatings under controlled low-oxygen conditions.
• Moisture content determination per ISO 554 and ASTM E1064 for quality control in polymer compounding labs.

FAQ

What vacuum level can the DZF-6050 achieve, and how is it measured?
The unit reaches a base pressure of ≤133 Pa (1 Torr) using its integrated two-stage rotary vane pump (not included). Vacuum level is monitored via a calibrated mechanical Bourdon-tube gauge meeting ISO 2787 accuracy class B.
Is the chamber suitable for acidic vapor exposure?
AISI 304 stainless steel provides moderate resistance to weak organic acids but is not recommended for prolonged HCl or HF vapor contact; for aggressive chemistries, optional AISI 316L lining or quartz-lined variants are available upon request.
Can temperature and vacuum be ramped programmatically?
No—the DZF-6050 does not include multi-step program logic. Ramp profiles require external controllers or manual intervention during operation.
What maintenance is required for long-term vacuum integrity?
Biannual inspection of the silicone door gasket for compression set, quarterly cleaning of the vacuum port filter, and annual recalibration of the temperature sensor against NIST-traceable references are recommended.
Does the oven support inert gas backfilling?
Yes—dual-port configuration allows simultaneous vacuum evacuation and inert gas introduction through dedicated inlet/outlet valves, enabling controlled atmosphere transitions per ISO 8573-1 Class 4 purity requirements.