BOXUN BXH-280 Precision Forced-Air Drying Oven
| Brand | BOXUN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | BXH-280 |
| Price Range | USD 2,100 – 4,200 (FOB) |
| Instrument Type | Precision Drying Oven |
| Temperature Range | RT+5°C to 300°C |
| Temperature Uniformity (at 150°C) | ±2.2°C |
| Temperature Fluctuation (at 150°C) | ±0.5°C |
| Recovery Time (30 s after 150°C disturbance) | 8 min |
| Heating Method | Forced-air Circulation |
| Chamber Material | Stainless Steel (SUS304) |
| External Dimensions (L×W×H, mm) | 865×746×1019 |
| Internal Dimensions (L×W×H, mm) | 720×530×745 |
| Standard Shelving | 3 stainless steel trays (max. 9) |
| Rated Power | 2.7 kW |
| Ramp-up Time to 150°C | 20 min |
| Control System | PID Analog Regulation |
| Display | LCD with Real-time Setpoint/Actual Temperature, Operating Status, Fan Speed Stage, and Cycle Progress |
| Programmable Stages | 10 segments × 100 cycles |
| Timer Function | Up to 99 h 59 min |
| Fan Speed Control | 5-step Adjustable |
| Communication Interface | Standard RS-485 port |
| Optional Accessories | Thermal Printer (domestic or Epson OEM), FDA/GMP Compliance Monitoring Software, GPRS SMS Alert Module, Wireless Temperature Data Logger (validated up to 130°C, includes calibration certificate at 0°C, 60°C, 121°C), Additional Stainless Steel Trays |
Overview
The BOXUN BXH-280 Precision Forced-Air Drying Oven is an engineered solution for laboratory and industrial applications requiring stable, uniform, and traceable thermal processing. Based on the principle of forced convection heating—where a rear-mounted heating element warms ambient air that is then circulated via a multi-stage adjustable blower—the BXH-280 achieves rapid thermal response and high spatial temperature consistency across its 280 L stainless steel chamber. Designed for routine drying, sterilization pre-treatment, moisture content analysis (e.g., gravimetric water loss per ASTM D2298 or ISO 1183), polymer curing, and sample conditioning prior to analytical testing, this oven complies with core requirements of GLP environments and supports audit-ready workflows when integrated with optional validation-grade accessories.
Key Features
- High-resolution LCD interface displaying real-time setpoint and measured chamber temperature, operational status, fan speed level, and program progress
- Rear-mounted heating assembly with direct airflow path into the working chamber, reducing warm-up time to 150°C in ≤20 minutes
- Optimized internal airflow design with strategically positioned perforations ensures temperature uniformity of ±2.2°C (at 150°C), meeting ISO 15502 and IEC 60068-3-5 performance benchmarks
- PID analog temperature control algorithm delivering ±0.5°C fluctuation (at 150°C) and 8-second recovery stability following minor thermal disturbances
- Dual redundant over-temperature protection: primary electronic sensing via PT100 sensor + independent mechanical thermal cut-off switch
- Five-stage fan speed regulation enables precise airflow tuning for heat-sensitive or densely loaded samples
- Programmable logic supporting up to 100 cycles of 10-segment ramp-soak profiles, with scheduling capability up to 99 hours and 59 minutes
Sample Compatibility & Compliance
The BXH-280 accommodates standard laboratory glassware (e.g., Petri dishes, weighing bottles, crucibles) and industrial components up to 720 mm × 530 mm × 745 mm. Its SUS304 interior resists corrosion from organic solvents, weak acids, and saline residues—making it suitable for pharmaceutical residual solvent removal, food moisture determination (AOAC 950.46), and ceramic sintering pre-bake steps. The oven’s architecture supports IQ/OQ/PQ validation protocols; optional wireless temperature loggers (calibrated at 0°C, 60°C, and 121°C per ISO/IEC 17025-accredited lab report) enable full thermal mapping per FDA Guidance for Industry: Process Validation and EU Annex 15. When paired with the FDA/GMP monitoring software package, the system provides electronic audit trails, user access controls, and alarm event logging compliant with 21 CFR Part 11.
Software & Data Management
The standard RS-485 interface allows seamless integration into centralized lab management systems using Modbus RTU protocol. Optional FDA- and GMP-compliant software modules provide secure remote monitoring, automated report generation (PDF/CSV), and configurable alarm escalation—including SMS alerts via GPRS module upon deviation from set thresholds. The wireless temperature data logger (optional, validated ≤130°C) records at user-defined intervals and exports timestamped datasets in .csv, .xlsx, and .pdf formats. All exported files include metadata such as sensor ID, calibration certificate reference, and environmental timestamps—facilitating traceability during regulatory inspections or internal quality audits.
Applications
- Pharmaceutical: Residual solvent evaporation (ICH Q5C), excipient drying, tablet coating pre-drying
- Food & Agriculture: Moisture content analysis (AOAC, ISO 712), mycotoxin sample preparation, grain drying validation
- Materials Science: Polymer film annealing, catalyst support calcination, battery electrode drying
- Environmental Testing: Soil moisture gravimetry (EPA Method 9095B), filter paper drying for particulate matter analysis
- Academic Research: Sample conditioning for XRD, TGA, and SEM preparation where thermal history must be documented
FAQ
What is the maximum validated operating temperature for the optional wireless temperature logger?
The wireless temperature data logger is calibrated and validated for continuous operation up to 130°C, with calibration points certified at 0°C, 60°C, and 121°C.
Does the BXH-280 meet international standards for temperature uniformity in drying ovens?
Yes—it achieves ±2.2°C uniformity at 150°C, aligning with ISO 15502:2016 Clause 6.3 and IEC 60068-3-5 Annex A requirements for forced-air thermal chambers.
Can the oven be integrated into a 21 CFR Part 11–compliant quality management system?
When equipped with the FDA/GMP monitoring software and RS-485-connected peripherals, the system supports electronic signatures, audit trail generation, and role-based access control per 21 CFR Part 11 Subpart B.
Is the stainless steel chamber electropolished or passivated?
The interior uses standard mill-finish SUS304 stainless steel; electropolishing or citric acid passivation is available as a custom order upon request.
What documentation is provided for IQ/OQ execution?
BOXUN supplies a comprehensive User Requirement Specification (URS) template, Factory Acceptance Test (FAT) report, and blank IQ/OQ protocol forms compatible with common validation software platforms.
