Boxun BXH-65 Precision Forced-Air Drying Oven
| Brand | Boxun |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | BXH-65 |
| Price Range | USD 1,100 – 2,100 |
| Instrument Type | Precision Drying Oven |
| Temperature Range | RT+5°C to 300°C |
| Temperature Uniformity (at 150°C) | ±2°C |
| Temperature Fluctuation (at 150°C) | ±0.3°C |
| Recovery Time (30 s, at 150°C) | 7 min |
| External Dimensions (L×W×H, mm) | 550×566×722 |
| Internal Chamber Dimensions (L×W×H, mm) | 410×450×450 |
| Chamber Material | Stainless Steel (SUS304) |
| Heating Method | Forced-Air Circulation with Rear-Mounted Heater |
| Power Rating | 1.5 kW |
| Standard Shelving | 2 stainless steel trays (max. 5) |
| Programmability | 10 segments × 100 cycles |
| Timer Range | 0–99 h 59 min |
| Control System | PID Analog Regulation |
| Fan Speed Control | 5-step adjustable |
| Communication Interface | Standard RS-485 port |
| Optional Accessories | FDA/GMP-compliant monitoring software, thermal printer (domestic or Epson OEM), GPRS SMS alarm module, wireless temperature data logger (≤130°C, with calibration certificate at 0°C, 60°C, 121°C), validation-ready data analysis software |
Overview
The Boxun BXH-65 Precision Forced-Air Drying Oven is an engineered solution for laboratory and industrial applications requiring stable, repeatable thermal processing across a wide operational range—from ambient +5°C up to 300°C. Designed around the principle of uniform convective heat transfer, the oven employs rear-mounted heating elements coupled with a precisely balanced axial fan system to generate controlled, laminar airflow throughout the stainless-steel chamber. This architecture minimizes thermal gradients and ensures compliance with ISO 17025-relevant uniformity requirements for drying, curing, sterilization validation support, and stability testing. Its robust construction—featuring SUS304 interior walls, double-wall insulation, and sealed door gasketing—supports long-term reliability under continuous operation in regulated environments such as QC labs, pharmaceutical R&D facilities, and materials testing centers.
Key Features
- Intelligent LCD interface displaying real-time setpoint, chamber temperature, operational status, fan speed level, and program progression
- Rear-heating configuration with direct airflow injection into the working chamber, reducing preheat time to ≤17 minutes (to 150°C)
- Optimized internal air duct design with strategically placed perforations to enhance temperature homogeneity (±2°C at 150°C per IEC 60068-3-5)
- Dual independent overtemperature protection: primary control via PT100 sensor feedback loop; secondary mechanical cut-off switch with manual reset
- Five-stage fan speed adjustment enabling precise airflow modulation for sensitive samples or low-mass loads
- PID analog temperature regulation with auto-tuning capability, delivering ±0.3°C fluctuation stability at steady state
- Programmable logic controller supporting up to 100 cycles of 10-segment ramp/soak profiles, facilitating automated aging, moisture loss, or desiccation protocols
Sample Compatibility & Compliance
The BXH-65 accommodates standard laboratory glassware, ceramic crucibles, polymer films, metal coupons, and pharmaceutical packaging components within its 410×450×450 mm chamber. All wetted surfaces are electropolished SUS304 stainless steel, ensuring corrosion resistance and ease of cleaning per USP analytical instrument qualification guidelines. The unit meets CE marking requirements for electrical safety (EN 61000-6-3, EN 61000-6-4) and thermal equipment standards (EN 60519-12). Optional FDA-compliant monitoring software provides audit-trail-enabled data logging aligned with 21 CFR Part 11 requirements—including electronic signatures, user access controls, and immutable record retention. GMP version includes IQ/OQ documentation templates and deviation tracking modules suitable for regulated manufacturing environments.
Software & Data Management
Standard RS-485 serial interface enables integration with central lab management systems or SCADA platforms using Modbus RTU protocol. Optional FDA/GMP monitoring software supports real-time remote monitoring, configurable alarm thresholds, and export of CSV/PDF reports compliant with ALCOA+ data integrity principles. The wireless temperature data logger (optional, calibrated at three NIST-traceable points: 0°C, 60°C, 121°C) interfaces via USB and delivers time-stamped thermocouple-grade accuracy (±0.2°C) for chamber mapping, installation qualification (IQ), and operational qualification (OQ). Raw log files are convertible to Excel, PDF, and XML formats for inclusion in regulatory submissions.
Applications
- Moisture content determination per ASTM D2298 and ISO 1183
- Thermal aging studies of polymers and composites (ASTM D3045)
- Pre-drying of filter membranes and weighing vessels prior to gravimetric analysis
- Curing of adhesives, coatings, and encapsulants in electronics manufacturing
- Residual solvent removal from API intermediates under cGMP conditions
- Stability chamber qualification support (ICH Q1A–Q1E)
- Calibration reference oven for thermometer and probe validation
FAQ
What is the maximum validated operating temperature for the optional wireless temperature logger?
The wireless data logger is rated for continuous use up to 130°C and supplied with a calibration certificate covering 0°C, 60°C, and 121°C.
Does the BXH-65 support GLP-compliant electronic record keeping?
Yes—when equipped with the FDA edition monitoring software, it provides full 21 CFR Part 11 compliance including role-based access, electronic signatures, and audit trail generation.
Can additional shelving be installed without compromising temperature uniformity?
Up to five total shelves may be installed; however, uniformity validation must be repeated per ISO 17025 clause 5.4.2 when exceeding the standard two-shelf configuration.
Is the rear-heating design compatible with ISO 17025 internal audit requirements for traceable thermal performance?
Yes—the documented recovery time (7 s), uniformity (±2°C), and fluctuation (±0.3°C) metrics align with ISO/IEC 17025:2017 Annex A.2 criteria for equipment verification.
What validation documentation is provided with the GMP software package?
The GMP edition includes pre-written IQ/OQ test scripts, URS alignment matrix, and change control log templates designed for pharmaceutical quality systems.
