KJ GROUP DZ-2BC Vacuum Drying Oven
| Brand | KJ GROUP |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | DZ-2BC |
| Pricing | Available Upon Request |
| Power Supply | 220 V AC |
| Rated Power Consumption | 1400 W |
| Temperature Control Range | Ambient +10 °C to 200 °C |
| Temperature Uniformity | ±1 °C |
| Ultimate Vacuum Level | <60 Pa |
| Chamber Dimensions (W×D×H) | 415 mm × 345 mm × 370 mm |
| External Dimensions (W×D×H) | 720 mm × 560 mm × 545 mm |
| Net Weight | 75 kg |
Overview
The KJ GROUP DZ-2BC Vacuum Drying Oven is an engineered thermal processing system designed for precise moisture removal, solvent evaporation, sterilization, and low-temperature heat treatment under controlled vacuum conditions. Operating on the principle of reduced-pressure boiling point depression, the oven enables drying of thermally sensitive, oxidation-prone, or volatile samples without thermal degradation. Unlike conventional convection ovens, vacuum drying eliminates atmospheric oxygen and lowers the vapor pressure threshold—critical for pharmaceutical intermediates, polymer precursors, battery electrode coatings, and biological specimens where structural integrity and chemical stability must be preserved. The DZ-2BC integrates a robust stainless steel or cold-rolled steel chamber with corrosion-resistant surface treatment, ensuring long-term dimensional stability and resistance to acidic or alkaline residue accumulation during repeated high-vacuum cycles.
Key Features
- Chamber constructed from either electropolished stainless steel or high-grade cold-rolled steel with passivation or epoxy-coated finish—optimized for vacuum integrity and chemical resistance.
- Optional dual-mode temperature controller: selectable between microprocessor-based PID controller (with auto-tuning and ramp/soak programming) or high-contrast digital LED display unit with manual setpoint adjustment.
- Dual digital display simultaneously shows set temperature and real-time chamber temperature, with audible and visual over-temperature alarm activation at user-defined thresholds (configurable up to 210 °C).
- Adjustable door latch mechanism and integrally molded high-temperature silicone rubber gasket (rated to 250 °C) maintain leak rates below 5 Pa/min under continuous operation—verified per ISO 2859-1 sampling inspection protocols.
- Internally embedded heating plates distributed across chamber walls and floor provide uniform radiant and conductive heating—achieving ≤1.5 °C spatial deviation across full load at 120 °C (measured per ASTM E2202-18 calibration guidelines).
Sample Compatibility & Compliance
The DZ-2BC accommodates standard laboratory sample formats including glass Petri dishes (up to Ø150 mm), aluminum weighing boats, ceramic crucibles, and sealed vacuum desiccators. It supports batch processing of powders, granules, thin-film substrates, and lyophilized biomaterials without cross-contamination risk due to its static vacuum environment. The system complies with general-purpose laboratory equipment safety standards IEC 61010-1 and GB/T 29821–2013 (Chinese national standard for vacuum ovens). While not certified for Class A cleanroom use or explosion-proof operation, it meets baseline requirements for GLP-compliant documentation workflows when paired with external data loggers supporting 21 CFR Part 11 audit trails.
Software & Data Management
The optional microcomputer controller includes RS-485 communication interface compatible with Modbus RTU protocol, enabling integration into centralized lab monitoring systems (e.g., LabVantage, Thermo Fisher SampleManager). Temperature profiles—including ramp rate, dwell duration, and cooling sequence—can be saved as named programs (up to 16 presets). All setpoints, actual readings, alarm events, and vacuum status timestamps are exportable via USB flash drive in CSV format. No proprietary software installation is required; raw data files are natively readable in Excel or Python pandas environments for statistical process control (SPC) analysis.
Applications
- Residual solvent removal from API crystallization batches prior to HPLC analysis.
- Pre-drying of silica gel, molecular sieves, and activated carbon before BET surface area measurement.
- Moisture content validation per USP <921> for hygroscopic excipients in solid dosage forms.
- Thermal stabilization of perovskite precursor films in photovoltaic R&D labs.
- Dehydration of histological tissue sections without shrinkage artifacts for SEM preparation.
- Accelerated aging studies of lithium-ion cathode materials under inert gas purge + vacuum hold protocols.
FAQ
What vacuum pump compatibility does the DZ-2BC require?
The unit features a standard KF-16 or ISO-KF25 flange interface and is compatible with two-stage rotary vane pumps (e.g., Edwards RV8, Welch 1402) capable of achieving ≤10 Pa base pressure. A dedicated vacuum gauge (capacitance manometer or Pirani type) is recommended for accurate sub-100 Pa monitoring.
Can the DZ-2BC operate continuously at 200 °C under vacuum?
Yes—chamber insulation and door seal design permit uninterrupted operation at maximum rated temperature. However, prolonged exposure above 180 °C may accelerate silicone gasket aging; replacement is advised every 12–18 months under daily use.
Is overload protection included in the electrical system?
The unit incorporates thermal cut-off fuses on both heating circuit and control board, plus electromagnetic relay isolation between power and logic sections—meeting IEC 60335-1 fault-safety requirements.
How is temperature uniformity validated during installation qualification (IQ)?
A 9-point sensor mapping (per ASTM E2202-18 Annex A2) using calibrated PT100 probes is recommended. KJ GROUP provides IQ/OQ documentation templates upon request, aligned with GAMP5 Category 3 device classification.
