BOXUN BXM-30R Vertical Steam Sterilizer

Overview

The BOXUN BXM-30R Vertical Steam Sterilizer is a fully self-contained, microprocessor-controlled autoclave engineered for reliable saturated steam sterilization in laboratory, clinical, and research environments. It operates on the principle of moist heat sterilization—utilizing pressurized saturated steam at elevated temperatures to achieve microbial inactivation through protein denaturation and nucleic acid disruption. Designed to meet fundamental requirements for sterility assurance in non-GMP settings, the BXM-30R delivers consistent thermal lethality (F₀) across its 29 L chamber volume, supporting validated cycles for instruments, glassware, textiles, liquid media, and porous loads. Its vertical configuration optimizes floor space utilization while maintaining ergonomic loading/unloading access. The unit complies with key international design references including ISO 17665-1 (sterilization of health care products — moist heat) and EN 285 (large steam sterilizers), and incorporates safety-critical engineering aligned with PED 2014/68/EU for pressure equipment.

Key Features

• Stainless steel chamber and outer casing constructed from SUS304 grade stainless steel—resistant to corrosion from repeated exposure to steam, condensate, and common cleaning agents.
• Intelligent microcomputer control system with digital PID temperature regulation, real-time pressure monitoring, and programmable cycle parameters (time, temperature, and exhaust mode).
• Automatic air removal via gravity displacement and dynamic cold-air purge—ensuring uniform steam penetration and eliminating air pockets that compromise sterilization efficacy.
• Self-sealing silicone gasket with auto-expansion design for leak-tight integrity at operating pressure; verified by routine pressure-hold testing.
• Dual safety protection: overtemperature cutoff (128 °C mechanical override) and overpressure relief valve set at 0.165 MPa design limit, with redundant pressure sensing circuitry.
• Integrated low-water level detection with audible/visual alarm and automatic power cutoff to prevent dry-heating damage to the heating element.
• Final-cycle acoustic alert (programmable buzzer) and status LED indicators for operational phase feedback (heating, sterilizing, exhausting, cooling).

Sample Compatibility & Compliance

The BXM-30R accommodates a broad range of load types—including wrapped surgical instruments, unwrapped metal tools, cotton gauze, rubber tubing, culture media in sealed bottles (with vented closures), and heat-stable polymer containers. Load configurations must adhere to established packing guidelines: porous items placed loosely in perforated trays; liquids loaded upright with ≤75% fill volume; no stacking of sealed containers. While not certified for ISO 13485 or FDA 21 CFR Part 820 manufacturing use, the sterilizer supports GLP-aligned documentation practices through manual logbook recording. Its pressure vessel construction meets ASME BPVC Section VIII Division 1 equivalency per Chinese GB/T 150 standards, and all electrical components conform to IEC 61010-1 for laboratory equipment safety.

Software & Data Management

The BXM-30R operates without proprietary software or network connectivity—functioning as a standalone, hardwired control system optimized for reliability and minimal maintenance. Cycle parameters are stored in non-volatile memory and retain settings after power interruption. For traceability, users are advised to maintain external sterilization logs documenting date, operator ID, load composition, cycle parameters (set temp/time), and biological indicator results (e.g., Bacillus stearothermophilus spore strips). Optional integration with external data acquisition systems is possible via analog 4–20 mA output (available on upgraded firmware versions), enabling connection to SCADA or LIMS platforms for audit-ready record retention.

Applications

This sterilizer is routinely deployed in university teaching labs for microbiology courseware preparation; hospital central sterile supply departments (CSSD) for reprocessing reusable diagnostic tools; agricultural research facilities handling plant tissue culture media; and pharmaceutical R&D labs performing pre-clinical equipment decontamination. It is particularly suited for applications requiring rapid turnaround of small-to-medium batch loads (<25 L effective volume), where validation flexibility and mechanical robustness outweigh the need for automated printout or electronic signature capabilities. Typical validated cycles include: 121 °C for 15–20 min (standard instrument load), 126 °C for 10 min (liquid media), and 134 °C flash cycles (where permitted by local regulatory interpretation and load compatibility).

FAQ

What is the maximum recommended load weight for the BXM-30R chamber?
The unit does not specify a maximum mass rating; however, optimal steam circulation requires ≤80% chamber volume occupancy. For dense instrument loads, total mass should remain under 15 kg to ensure thermal uniformity.
Can this sterilizer be used for sterilizing liquids in sealed bottles?
Yes—provided bottles are made of heat-resistant borosilicate glass or polypropylene, filled to ≤75% capacity, and fitted with loosened or vented caps to prevent rupture during heating and cooling phases.
Does the BXM-30R support validation documentation for ISO 13485 compliance?
No—the device lacks built-in data logging, electronic signatures, or audit-trail functionality required for QMS-certified environments. It may serve as a secondary sterilizer in non-regulated workflows or as a training platform for validation protocol development.
Is third-party IQ/OQ/PQ validation support available?
BOXUN provides basic installation and operational checklists; full qualification must be performed by qualified biomedical engineers using calibrated thermocouples, pressure transducers, and biological indicators per ISO 17665-2.
What maintenance intervals are recommended?
Daily: chamber wipe-down and gasket inspection. Monthly: drain valve flushing and safety valve functional test. Annually: full calibration of temperature and pressure sensors by an accredited metrology lab.