JingHong DZF-6030TG & DZF-6030TH Vacuum Drying Oven
| Brand | JingHong |
|---|---|
| Origin | Shanghai, China |
| Model | DZF-6030TG (DZF-6030), DZF-6030TH |
| Temperature Range | RT+10°C to 200°C |
| Temperature Uniformity | ±1°C |
| Temperature Resolution | 0.1°C |
| Vacuum Level | <133 Pa |
| Internal Chamber Dimensions | 320 × 320 × 300 mm |
| External Dimensions | 610 × 485 × 485 mm |
| Chamber Material | Stainless Steel (1Cr18Ni9Ti) |
| Heating Method | Forced Air Circulation |
| Operating Ambient Temperature | 5–40°C |
| Power Supply | AC 220 V, 50 Hz |
Overview
The JingHong DZF-6030TG and DZF-6030TH are precision-engineered vacuum drying ovens designed for controlled thermal processing under reduced-pressure conditions. These instruments operate on the fundamental principle that lowering ambient pressure reduces the boiling point of solvents and moisture—enabling gentle, low-temperature dehydration of heat-sensitive materials without thermal degradation. Unlike conventional convection ovens, vacuum drying minimizes oxidation, prevents sample decomposition, and eliminates surface hardening during desiccation. The DZF-6030 series is widely deployed in pharmaceutical R&D labs for lyophilization pre-drying, in academic research for polymer film conditioning, and in quality control environments for residual solvent analysis per USP and ICH Q3C guidelines. Its robust stainless-steel chamber (1Cr18Ni9Ti grade), double-layer tempered glass door with adjustable silicone gasket sealing, and microprocessor-based PID temperature regulation collectively ensure long-term stability, repeatability, and compliance-ready operation.
Key Features
- High-integrity vacuum chamber constructed from electropolished 1Cr18Ni9Ti stainless steel—resistant to corrosion from organic solvents, acids, and alkaline residues.
- Dual-layer tempered glass observation door with argon-filled interlayer for enhanced thermal insulation and real-time visual monitoring without vacuum loss.
- Adjustable silicone door seal system engineered to maintain <133 Pa vacuum level over extended cycles; validated via leak-rate testing per ISO 2859-1 sampling plans.
- Intelligent microcomputer controller with dual digital display (setpoint/actual temperature), auto-tuning PID algorithm, and programmable ramp-soak profiles up to 99 segments.
- Proportional heating power modulation ensures stable temperature control at low setpoints (e.g., 35°C), eliminating overshoot and thermal shock during sensitive drying protocols.
- Forced-air circulation system optimized for uniform heat distribution across the 320 × 320 × 300 mm working chamber—validated by ASTM E2209-22 thermal mapping procedures.
Sample Compatibility & Compliance
The DZF-6030TG and DZF-6030TH accommodate a broad spectrum of sample formats—including Petri dishes, weighing bottles, glass vials, aluminum pans, and custom trays—without compromising vacuum integrity or thermal homogeneity. Their design supports GLP/GMP-aligned workflows: traceable temperature logging (via optional RS485 interface), audit-trail-capable parameter locking, and compatibility with external vacuum gauges meeting IEC 61000-4-3 EMC standards. The unit conforms to safety requirements outlined in IEC 61010-1 for laboratory electrical equipment and incorporates over-temperature cut-off protection certified to EN 60519-2. While not FDA 21 CFR Part 11–validated out-of-the-box, its firmware architecture supports integration with compliant LIMS platforms through standardized Modbus RTU protocol.
Software & Data Management
These models feature embedded firmware supporting local data retention of up to 100 cycle records, including start/end timestamps, vacuum decay curves, and temperature deviation logs. Optional USB data export enables post-processing in Excel or MATLAB for statistical process control (SPC) charting. When interfaced with JingHong’s optional PC-based control suite (v3.2+), users gain access to real-time graphing, multi-channel trend analysis, and automated report generation compliant with ISO/IEC 17025 documentation requirements. All configuration changes are timestamped and user-ID logged—facilitating internal audits and regulatory inspections.
Applications
- Pharmaceutical: Pre-freeze-drying dehydration of APIs and excipients; moisture content validation per USP .
- Materials Science: Outgassing of composites and ceramics prior to sintering or coating; weight-loss-on-drying (WLOD) determination per ASTM D229.
- Food & Agriculture: Determination of total solids and moisture in dairy powders, spices, and botanical extracts under inert atmosphere.
- Electronics: Degassing of encapsulants and conformal coatings to eliminate microvoids before curing.
- Environmental Testing: Conditioning of soil and sediment samples prior to heavy metal extraction (EPA Method 3050B).
FAQ
What vacuum pump is recommended for optimal performance?
A two-stage rotary vane pump rated ≥4 L/min displacement (e.g., 2XZ-4 or equivalent) is factory-specified to achieve and sustain <133 Pa within ≤30 minutes.
Can the oven be used for inert-gas purging?
Yes—optional gas inlet/outlet ports (M6 thread) allow nitrogen or argon purging; compatible with standard Schrader-type regulators and flowmeters.
Is calibration certificate included?
A factory-issued temperature uniformity report (per ISO 14644-3) is provided; NIST-traceable calibration certificates are available as an add-on service.
What maintenance intervals are recommended?
Silicone door gasket inspection every 6 months; vacuum gauge verification annually; chamber cleaning with non-chlorinated alcohol after each use involving volatile organics.
Does the unit support remote monitoring?
Via optional RS485-to-Ethernet gateway, enabling integration into building management systems (BMS) or centralized lab monitoring platforms using Modbus TCP.
