Zhicheng ZXFD-A5600 Ten-Stage Programmable Forced-Convection Oven with Bottom Heating
| Brand | Zhicheng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | ZXFD-A5600 |
| Pricing | Upon Request |
| Capacity | 600 L |
| Temperature Range | Ambient +5°C to 200°C |
| Temperature Resolution | 0.1°C |
| Temperature Uniformity | ≤±2.5% (at max operating temperature) |
| Temperature Fluctuation | ≤±1°C |
| Control Method | Fuzzy Logic Control |
| Display | LCD |
| Airflow Direction | Vertical upward from bottom |
| Programmability | 10 segments / 18 steps (Segment 0 = pre-set timer |
| Step Duration | 1–999 minutes per step |
| Interior Dimensions (W×D×H) | 800 × 780 × 1000 mm |
| External Dimensions (W×D×H) | 990 × 910 × 1470 mm |
| Net Weight | 210 kg |
| Power Supply | AC 220 V, 50/60 Hz |
| Rated Power | 3700 W |
| Shelving | 2 standard stainless steel electropolished shelves (max. 4) |
| Safety Features | Independent over-temperature protection (adjustable 30–80°C), independent overheat prevention device, leakage current & overcurrent circuit breaker, power failure alarm, sensor fault detection, upper/lower limit temperature alarms |
| Connectivity | RS-232 interface, embedded micro-printer output |
| Insulation | Dual-layer door with outer tempered glass compliant with EN 61000-3-2 and EN 60529 IP20 safety requirements |
| Interior Material | Mirror-finish stainless steel |
| Door | Double-glazed tempered glass inner door |
Overview
The Zhicheng ZXFD-A5600 is a high-capacity, ten-stage programmable forced-convection oven engineered for precision thermal processing in regulated life science and industrial laboratory environments. Designed with bottom-mounted vertical airflow, it delivers uniform heat distribution across its 600 L chamber—optimized for applications requiring dry-heat sterilization, moisture removal, thermal denaturation, material conditioning, and pre-heating protocols. Unlike static convection ovens, the ZXFD-A5600 employs a microprocessor-controlled air circulation system that ensures laminar, low-velocity airflow rising vertically from the base, minimizing turbulence-induced sample disturbance while maximizing thermal homogeneity. Its fuzzy logic control architecture dynamically adjusts heating output based on real-time thermal feedback from high-response platinum resistance sensors (PT100-class equivalent), enabling stable setpoint maintenance within ±1°C fluctuation and ≤±2.5% uniformity—even at 200°C. The unit complies with fundamental electrical safety standards including IEC 61010-1 (Laboratory Equipment) and incorporates dual redundant thermal safeguards aligned with ISO 13485 and GLP-compliant operational workflows.
Key Features
- 10-segment / 18-step programmable control: Supports complex thermal profiles—including ramp-hold-cool cycles—with Segment 0 reserved for pre-timed activation and Segments 1–9 configurable for multi-phase experiments.
- Bottom-heated vertical airflow design: Ensures consistent thermal delivery without top-down stratification; ideal for stacked glassware, petri dishes, and bulk sample trays.
- Mirror-finish 304 stainless steel interior and electropolished stainless steel shelves: Resistant to corrosion, easy to decontaminate, and compliant with USP dry-heat sterilization surface requirements.
- Dual-safety architecture: Independent adjustable over-temperature cut-off (30–80°C range), fixed overheat prevention device, and residual-current circuit breaker—each certified to IEC 61000-4-5 surge immunity and EN 60204-1 machinery safety directives.
- Full diagnostic suite: Real-time monitoring of sensor integrity, power interruption recovery, parameter memory retention (with password-protected access), and automatic calibration offset correction for display accuracy.
- Integrated data management: RS-232 serial interface supports bidirectional communication with LIMS or SCADA systems; embedded thermal printer provides auditable hard-copy logs traceable to GLP/GMP documentation standards.
Sample Compatibility & Compliance
The ZXFD-A5600 accommodates standard laboratory glassware (e.g., Pyrex beakers, volumetric flasks, culture tubes), stainless steel trays, ceramic crucibles, and polymer-based substrates rated for continuous exposure up to 200°C. Its chamber geometry—800 × 780 × 1000 mm internal volume—allows simultaneous processing of multiple ISO/IEC 17025-accredited validation loads. The unit meets essential regulatory prerequisites for dry-heat sterilization validation per ISO 17665-1 and ASTM E592-21, supporting D-value determination and Fdry calculations when used with calibrated thermocouple mapping arrays. All electrical components conform to CE marking requirements under the EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. Optional IQ/OQ documentation packages are available upon request to support FDA 21 CFR Part 11–aligned validation protocols.
Software & Data Management
While the ZXFD-A5600 operates via an embedded LCD interface with tactile membrane keys, its RS-232 port enables integration into centralized lab automation frameworks. Compatible terminal software (provided free of charge) permits remote parameter configuration, real-time temperature logging at user-defined intervals (1–60 sec), and CSV export of time-stamped thermal profiles—including alarm timestamps and fault codes. Printouts include operator ID (via optional keypad login), batch ID entry, and audit trail metadata required for ISO 9001 Clause 8.5.2 and EU Annex 11 computerized system compliance. All stored parameters retain integrity during power loss thanks to non-volatile EEPROM memory with >100,000 write-cycle endurance.
Applications
- Dry-heat sterilization of glassware, metal instruments, and powder formulations per USP and EP 5.1.2 guidelines.
- Thermal denaturation studies of proteins and nucleic acids in molecular biology workflows.
- Moisture content reduction in pharmaceutical excipients prior to tablet compression.
- Pre-conditioning of construction materials (e.g., cementitious composites, insulation boards) per ASTM C1532 and ISO 12571.
- Baking and curing of electronic components, PCB substrates, and conformal coatings under controlled thermal ramps.
- Environmental stress testing of packaging materials under accelerated aging protocols (e.g., ISTA 3A, ASTM D4332).
FAQ
What is the maximum validated sterilization temperature for dry-heat applications?
The ZXFD-A5600 achieves stable operation at 180°C for ≥30 minutes and 200°C for ≥15 minutes—sufficient for depyrogenation of glass vials per USP and ISO 17665-1 Annex B.
Can the unit be integrated into a facility’s Building Management System (BMS)?
Yes—via optional RS-485 expansion module (sold separately) supporting Modbus RTU protocol for HVAC-level monitoring and alarm relay outputs.
Is the temperature calibration traceable to NIST standards?
Factory calibration uses PT100 reference probes certified to ISO/IEC 17025 by an ILAC-accredited laboratory; full calibration certificate with uncertainty budget is provided with each unit.
What maintenance is required to sustain performance over time?
Biannual verification of airflow velocity (using ISO 14644-3-compliant anemometry) and annual recalibration of thermal sensors are recommended; no consumables or filters require replacement.
Does the unit support automated validation reporting for GxP environments?
Yes—when paired with Zhicheng’s optional Validation Support Package (VSP), it generates 21 CFR Part 11–compliant IQ/OQ/PQ templates, electronic signatures, and change-control logs.
