BOXUN BMJ-400 Mold Incubator

Overview

The BOXUN BMJ-400 Mold Incubator is a purpose-engineered, microprocessor-controlled environmental chamber designed specifically for the reliable cultivation, isolation, and maintenance of filamentous fungi, yeasts, and other moisture-tolerant microorganisms under precisely regulated thermal conditions. Unlike general-purpose incubators, the BMJ-400 incorporates structural and thermal management features optimized for mold growth kinetics—particularly critical in BOD testing, mycological quality control (e.g., ISO 7954, ISO 13843), pharmaceutical stability studies (ICH Q1A), and environmental microbiology per APHA Standard Methods. Its temperature range of 0°C to 60°C enables both low-temperature fungal preservation and thermotolerant strain propagation, while the ±0.5°C temperature fluctuation and ±1°C uniformity (measured at 37°C per ISO 15378 Annex 2) ensure reproducible colony morphology and sporulation patterns across the full 400 L working volume.

Key Features

• Integrated refrigeration architecture with a high-efficiency hermetic compressor and R134a refrigerant—compliant with Montreal Protocol phase-out requirements and EU F-Gas Regulation (EU No 517/2014)
• Proprietary multi-path air duct design coupled with a centrifugal circulation fan, ensuring laminar yet thorough thermal mixing and minimizing vertical/horizontal gradients across all shelf levels
• Microcomputer-based PID temperature controller with 0.1°C resolution, real-time LCD display, and configurable over-temperature cut-off (audible + visual alarm)
• Independent fresh-air inlet valve (manually operated) enabling controlled atmospheric exchange without compromising internal humidity stability—critical for preventing condensation during prolonged incubation
• Self-diagnostic cooling system with automated fault detection, including compressor status, sensor integrity, and defrost cycle validation
• Energy-efficient, non-power-consuming automatic defrost mechanism that eliminates thermal interruption during extended operation cycles
• Mechanical door lock with tamper-resistant design—supports GLP-compliant access control in regulated laboratories
• RS-485 communication interface supporting Modbus RTU protocol for integration into centralized lab infrastructure (e.g., LabVantage, STARLIMS) or standalone data loggers

Sample Compatibility & Compliance

The BMJ-400 accommodates standard microbiological sample formats—including Petri dishes (90 mm and 150 mm), slant tubes, broth culture vessels, and multi-well plates—on four independently adjustable, load-rated stainless-steel shelves. Its interior chamber (600 × 640 × 1050 mm) permits flexible spatial arrangement while maintaining airflow integrity. The unit meets essential safety and performance benchmarks: IEC 61010-1 (Electrical Safety for Laboratory Equipment), GB/T 23789–2009 (Chinese National Standard for Incubators), and aligns with functional expectations outlined in USP (Environmental Monitoring) and ISO 14644-1 Class 8 cleanroom-compatible operation when installed in controlled environments. Though not a humidified incubator, its sealed construction and fresh-air modulation allow stable ambient RH conditions suitable for most mycological protocols where active humidity control is not mandated.

Software & Data Management

The BMJ-400 supports traceable, audit-ready operation through its embedded firmware architecture. All setpoints, runtime logs, alarm events, and power-interruption recovery timestamps are stored in non-volatile memory. When connected via RS-485 to a host PC running BOXUN’s optional LabLink™ software (Windows 10/11 compatible), users can configure multi-stage temperature profiles (up to 10 segments × 99 cycles), export CSV-formatted time-series data, and generate PDF reports compliant with FDA 21 CFR Part 11 requirements—including electronic signatures, audit trails, and user-level permission settings. Optional GPRS-enabled remote alerting transmits SMS notifications upon temperature deviation or door-open events—facilitating unattended overnight or weekend operation in decentralized lab networks.

Applications

• Biochemical Oxygen Demand (BOD₅) incubation per ISO 5815-1 and EPA Method 405.1
• Fungal identification and purity testing in food, feed, and cosmetic raw materials (ISO 21527-1, ISO 16212)
• Antifungal susceptibility testing (CLSI M38-A2) and spore germination assays
• Environmental monitoring of indoor air and water samples for Aspergillus, Penicillium, and Cladosporium species
• Plant pathology research involving pathogenic molds such as Fusarium and Rhizopus
• QC release testing of sterile medical devices per ISO 11737-1 (bioburden enumeration)

FAQ

Does the BMJ-400 support humidity control?
No. This model is a dry-air, temperature-only incubator. It does not include active humidification or RH sensing. For applications requiring controlled relative humidity, consider BOXUN’s BHG series dual-control incubators.
Can the BMJ-400 be validated for GMP use?
Yes. Its programmable logic, data logging, alarm history, and electronic signature-ready software option enable IQ/OQ/PQ execution per ASTM E2500 and Annex 15 of the EU GMP Guide.
What is the maximum load capacity per shelf?
Each of the four 600 × 640 mm stainless-steel shelves supports up to 15 kg uniformly distributed load, verified under ISO 17025-accredited mechanical testing.
Is the RS-485 interface compatible with common SCADA systems?
Yes. It implements standard Modbus RTU over RS-485 (2-wire, half-duplex), with configurable slave ID, baud rate (9600–115200 bps), and parity—fully interoperable with Ignition, Siemens Desigo, and Honeywell Experion platforms.
How often does the automatic defrost cycle activate?
Defrost is triggered only upon detected evaporator frost accumulation—typically every 24–72 hours under continuous operation at ≤25°C; no fixed interval timer is used, preserving thermal continuity.