Boxun BXH-65S Precision Programmable Drying Oven
| Brand | Boxun |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Region Category | Domestic (China) |
| Model | BXH-65S |
| 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 |
| Heating Rate (to 150°C) | 17 min |
| External Dimensions (L×W×H, mm) | 575×635×615 |
| Internal Chamber Dimensions (L×W×H, mm) | 410×450×350 |
| Chamber Material | Stainless Steel (AISI 304) |
| Heating Method | Forced-Air Circulation with Rear-Mounted Heater |
| Control System | PID Analog Regulation |
| Programmability | 30 segments × 99 cycles |
| Data Storage Capacity | 4 million records |
| Interface Ports | 2 × RS-485, 1 × USB |
| Fan Speed Control | 5-step adjustable |
| Exhaust Damper Control | 10-step adjustable |
| Cooling Mode | Post-cycle rapid cooling |
| Safety | Dual independent overtemperature protection (sensor-based + mechanical thermostat) |
| Optional Accessories | FDA/GMP-compliant monitoring software, thermal printer (Epson or domestic thermal), GPRS SMS alarm module, wireless temperature validation probes (≤130°C, NIST-traceable calibration certificate for 0°C/60°C/121°C), HEPA-filtered air inlet (Class 100 clean air) |
Overview
The Boxun BXH-65S Precision Programmable Drying Oven is an engineered solution for laboratories requiring precise, repeatable, and auditable thermal processing across research, quality control, and regulatory environments. Designed around forced-air convection thermodynamics, the oven employs a rear-mounted heating assembly coupled with a multi-stage axial fan system to ensure rapid heat transfer and uniform thermal distribution within the stainless-steel chamber. Its operational envelope spans from ambient +5°C to 300°C, supporting applications ranging from moisture loss determination and polymer curing to pre-sterilization conditioning and stability testing per ICH Q1 guidelines. The unit complies with fundamental design principles aligned with ISO 17025 laboratory competence requirements and provides foundational infrastructure for GLP- and GMP-aligned workflows—particularly when integrated with optional FDA 21 CFR Part 11–compliant software modules.
Key Features
- 5-inch high-resolution capacitive touchscreen interface with real-time display of setpoint/actual temperature, timer status, fan speed stage, exhaust damper position, and operational mode.
- Rear-heating architecture accelerates thermal ramping: achieves 150°C in ≤17 minutes with <7-second recovery time after door opening (measured at 150°C).
- Chamber temperature uniformity maintained at ±2°C (at 150°C), validated per ASTM E2207 and ISO 15504 standards for laboratory ovens.
- Programmable logic controller supports up to 30 temperature/time segments across 99 repeatable cycles, including programmable ramp rates for both heating and cooling phases.
- Dual-layer safety architecture: primary overtemperature cutoff via PT100 sensor feedback loop; secondary independent mechanical thermostat acting as hardwired fail-safe.
- Five-step fan speed control and ten-position exhaust damper enable fine-tuned airflow management—critical for volatile sample handling, solvent evaporation studies, and low-humidity drying protocols.
- Onboard data logging stores up to 4 million timestamped temperature records (≥10 years at 1-min intervals); exportable via USB to CSV or Excel-compatible formats for audit trail generation.
Sample Compatibility & Compliance
The BXH-65S accommodates standard laboratory glassware (e.g., weighing dishes, Petri dishes, crucibles) and industrial sample trays up to 410 × 450 × 350 mm internal volume. Its AISI 304 stainless-steel interior resists corrosion from acidic vapors, saline residues, and organic solvents. Optional HEPA filtration (Class 100 equivalent) ensures particulate-free airflow for cleanroom-adjacent applications such as pharmaceutical excipient drying or electronics component bake-out. When equipped with traceable wireless temperature probes and calibrated per ISO/IEC 17025-accredited procedures (certified points: 0°C, 60°C, 121°C), the system supports IQ/OQ/PQ validation per Annex 15 of the EU GMP Guide and USP .
Software & Data Management
The embedded firmware supports local data review—including graphical temperature curves, alarm event logs (with timestamps and cause codes), and screen-capture screenshots. RS-485 interfaces enable integration into centralized lab automation networks using Modbus RTU protocol. Optional FDA Edition and GMP Edition monitoring software provide electronic signatures, user access levels, audit trails, and 21 CFR Part 11 compliance—including immutable record retention, change history, and role-based permissions. Printer add-ons support direct thermal curve output (Epson or domestic thermal printers) with configurable report headers and metadata tagging.
Applications
- Moisture content analysis (ASTM D4442, ISO 4611)
- Thermal aging of polymers and composites (ISO 2578, ASTM D3045)
- Pre-drying of analytical samples prior to gravimetric or spectroscopic analysis
- Stability testing under accelerated conditions (ICH Q1A–Q1E)
- Curing of coatings, adhesives, and printed circuit board laminates
- Bake-out of semiconductor wafers and MEMS devices
- Residual solvent removal in API manufacturing (ICH Q5C)
FAQ
What is the maximum operating temperature and corresponding accuracy specification?
The BXH-65S operates from ambient +5°C to 300°C. Temperature fluctuation is specified as ±0.3°C (measured over 30 seconds at 150°C), verified per internal factory calibration against NIST-traceable references.
Can the oven be validated for GxP environments?
Yes—when configured with optional wireless validation probes (including 3-point NIST-traceable calibration certificate), HEPA filtration, and GMP Edition software, the system meets baseline requirements for IQ/OQ execution and ongoing performance monitoring in regulated settings.
Is remote monitoring supported out of the box?
Standard hardware includes dual RS-485 ports and one USB port. Remote SMS alerts require optional GPRS module; cloud-based telemetry requires third-party SCADA integration or Boxun’s FDA/GMP software suite.
How many shelves are included, and what is the maximum load capacity per shelf?
Two stainless-steel wire shelves are standard. Up to five shelves may be installed (maximum spacing: 70 mm). Load capacity is 15 kg per shelf, evenly distributed.
Does the unit meet electromagnetic compatibility (EMC) and electrical safety standards?
The BXH-65S conforms to GB 4793.1 (equivalent to IEC 61010-1) for laboratory equipment safety and GB/T 18268.1 (equivalent to IEC 61326-1) for EMC. CE marking is available upon request with EU Representative documentation.
