BOXUN BXM-30R Vertical Steam Autoclave

Overview

The BOXUN BXM-30R is a vertically oriented steam autoclave engineered for reliable, repeatable moist-heat sterilization in laboratory, clinical, and research environments. It operates on the fundamental principle of saturated steam under pressure—leveraging the thermodynamic properties of water vapor at elevated temperatures to achieve microbial lethality. At 126 °C and 0.14 MPa (approximately 20.3 psi), the unit delivers sufficient thermal energy to inactivate bacterial spores—including Bacillus stearothermophilus—in accordance with internationally recognized sterilization kinetics defined in ISO 17665-1 and EN 285. Its 29-liter chamber volume supports batch processing of standard laboratory loads: wrapped instruments, stainless-steel trays, glassware, liquid media in sealed containers, and porous materials such as gauze or cotton packs. Designed for integration into quality-controlled workflows, the BXM-30R meets structural and operational requirements for Class B autoclaves per EN 13060, supporting gravity displacement and pre-vacuum-compatible cycles where applicable.

Key Features

• Stainless steel chamber, outer jacket, and basket constructed from AISI 304 stainless steel—resistant to corrosion from repeated exposure to condensate, cleaning agents, and biological residues.
• Microprocessor-based control system with digital temperature and pressure monitoring, enabling precise cycle parameter setting (time, temperature, and hold duration) and real-time display of process variables.
• Automatic air removal via gravity displacement: integrated cold-air purge function initiates prior to pressurization to ensure chamber saturation with pure steam.
• Self-sealing silicone gasket with auto-expansion design maintains uniform compression across the door seal interface during pressurization, minimizing leakage risk and supporting long-term integrity.
• Safety-critical interlocks: low-water-level detection triggers audible and visual alarms and halts heating; overpressure relief valve activates at 0.165 MPa (design limit); independent overtemperature cutoff prevents thermal runaway.
• End-of-cycle acoustic alert (audible beep) signals completion, followed by automatic depressurization and cooling phase initiation.

Sample Compatibility & Compliance

The BXM-30R accommodates a broad range of load types common in academic, pharmaceutical, and diagnostic laboratories. Compatible items include surgical instruments, Petri dishes, pipette tips, culture media bottles (with vented caps), textile wraps, and autoclavable polymer containers rated for repeated steam exposure. All sterilization cycles comply with core regulatory expectations for non-portable steam sterilizers: adherence to ISO 17665-1 (sterilization of health care products), alignment with USP (bacterial endotoxin testing preparation), and conformance to national standards GB 8599–2008 (Chinese standard for large steam sterilizers). While the unit does not include built-in electronic audit trail or 21 CFR Part 11-compliant user authentication, its mechanical and electrical safety architecture satisfies IEC 61010-1 for laboratory equipment.

Software & Data Management

The BXM-30R employs an embedded microcontroller with non-volatile memory to retain user-defined cycle presets and last-run parameters. Though it lacks Ethernet/Wi-Fi connectivity or PC-based software, all operational data—including setpoints, actual temperature/pressure profiles, and timer status—are displayed in real time on the front-panel LCD. Cycle logs are not stored electronically; however, manual recordkeeping is facilitated by clearly labeled physical controls and intuitive sequence indicators. For laboratories requiring documentation traceability, external temperature/pressure data loggers (e.g., calibrated Class A thermocouple probes) may be inserted into representative load positions to generate validation-ready thermal mapping reports.

Applications

This autoclave serves as a primary sterilization tool across multiple domains: microbiology labs preparing agar plates and broth media; hospital central sterile supply departments (CSSD) reprocessing reusable instruments; biotechnology facilities sterilizing fermentation vessels and sampling tools; agricultural research units decontaminating soil samples and growth substrates; and educational institutions conducting hands-on training in aseptic technique. Its compact footprint (395 mm × 395 mm base) and vertical orientation optimize floor space utilization without compromising chamber depth—ideal for facilities with height-constrained utility rooms or mobile lab configurations.

FAQ

What is the maximum allowable load weight for the BXM-30R?

The unit does not specify a maximum load mass rating; however, best practice limits loading to ≤80% of chamber volume to ensure adequate steam penetration and air removal. Overloading may result in incomplete sterilization due to trapped air pockets.
Can liquid media be sterilized in sealed bottles using this autoclave?

Yes—provided containers feature vented closures (e.g., screw caps with silicone-lined holes or specialized autoclave-safe stoppers) to prevent rupture during heating and allow controlled steam ingress/egress.
Is routine validation required, and what standards apply?

Yes. Initial installation qualification (IQ), operational qualification (OQ), and periodic performance qualification (PQ) are recommended per ISO 13485 and GMP Annex 1 guidelines. Biological indicators (e.g., Geobacillus stearothermophilus spore strips) should be used quarterly for routine efficacy verification.
Does the BXM-30R support programmable multi-step cycles (e.g., liquid vs. solid modes)?

It offers fixed-cycle logic optimized for solids and liquids separately, with distinct timing and cooling protocols—but does not permit user-defined multi-stage ramp/soak sequences.
What maintenance intervals are advised for sustained reliability?

Daily: chamber wipe-down and gasket inspection. Monthly: drain line flushing and safety valve functional test. Annually: full calibration of temperature and pressure sensors by an accredited service provider.