Boxun BXM-75M Vertical Steam Sterilizer
| Brand | Boxun |
|---|---|
| Origin | Shanghai, China |
| Model | BXM-75M |
| Instrument Type | Vertical |
| Max Temperature | 135°C |
| Max Working Pressure | 0.22 MPa |
| Chamber Dimensions | Ø400 × 700 mm |
| External Dimensions | 750 × 800 × 1080 mm |
| Chamber Volume | 75 L |
| Sterilization Temp Range | 105–135°C |
| Drying Temp Range | 102°C |
| Melting Temp Range | 40–100°C |
| Holding Temp Range | 25–85°C |
| Sterilization Time | 4–120 min |
| Drying Time | 0–999 min |
| Melting/Holding Time | 0–999 min |
| Delay Start | Up to 99 h 60 min |
| Design Pressure | 0.25 MPa |
| Drying Residual Moisture | <1% |
| Heating Power | 5.9 kW |
| Power Supply | ~220 V ± 22 V, 50 Hz ± 1 Hz |
| Ambient Operating Conditions | 5–40°C, 20–80% RH |
| Chamber & Basket Material | SUS304 stainless steel |
| Cooling Method | Forced-air rapid cooling |
| Air Intake Filtration | Built-in HEPA-grade filter |
| Dual Water Inlet System | Selectable pure water or tap water |
| Condensate Recycling System (C.W.S.) | Integrated |
| Waste Gas & Effluent Purification System (W.P.S.) | Integrated |
| Standard Sample Temperature Probe | Yes |
| Data Logging & Export | Yes |
| Safety Features | Mechanical self-locking + electronic interlock door, overtemperature cutoff, independent safety limiter, overpressure relief valve, fault self-diagnosis |
Overview
The Boxun BXM-75M Vertical Steam Sterilizer is a fully automated, microprocessor-controlled Class B vacuum-assisted steam sterilization system engineered for routine and critical sterilization tasks in academic laboratories, clinical diagnostics, pharmaceutical QC labs, and biomedical research facilities. It operates on the validated principle of saturated steam under pressure—leveraging precise thermal energy transfer to achieve microbial inactivation through protein denaturation and nucleic acid disruption. Designed to meet internationally recognized sterilization standards—including ISO 17665-1 (Sterilization of health care products — Moist heat), EN 285 (Large steam sterilizers), and supporting compliance with FDA 21 CFR Part 820 and GLP/GMP documentation requirements—the BXM-75M delivers reproducible lethality (F0) across diverse load configurations. Its vertical orientation optimizes floor space utilization without compromising chamber volume (75 L), while the robust SUS304 stainless steel construction ensures long-term resistance to corrosion from repeated exposure to high-humidity, high-temperature cycles and chemical residues.
Key Features
- Intelligent dual-safety door mechanism: Combines mechanical self-locking with electronic interlock verification to prevent accidental opening during pressurized operation or residual temperature hazard.
- Full-color capacitive touchscreen interface with intuitive icon-driven navigation; supports multi-language display (English default) and real-time status visualization including pressure, temperature, phase progress, and error codes.
- 16 programmable user-defined cycles—each independently configurable for sterilization, drying, melting, and holding phases—with persistent storage and password-protected editing.
- Integrated sample temperature monitoring via calibrated Pt100 probe, enabling direct validation of thermal penetration into porous or dense loads per ISO 11140 and EN 554 requirements.
- Forced-air rapid cooling system reduces post-cycle cooldown time by up to 40% compared to passive cooling, improving throughput without compromising material integrity.
- Dual independent water supply channels allow seamless switching between purified water (e.g., deionized or distilled) and municipal tap water, each monitored by level sensors and auto-refilled during low-level conditions.
- C.W.S. (Condensate Water Reuse System) captures and recirculates sterile condensate for jacket heating and humidification, reducing consumable water usage by approximately 30% per cycle.
- W.P.S. (Waste Purification System) filters exhaust steam and condensate through a multi-stage activated carbon and hydrophobic membrane assembly prior to discharge, minimizing environmental impact and meeting local effluent regulations.
Sample Compatibility & Compliance
The BXM-75M accommodates a wide range of sterilizable materials including wrapped and unwrapped instruments, glassware, pipette tips, culture media (liquid and agar-based), textiles, rubber tubing, and porous polymer components. Its pulse-vacuum capability (configurable frequency range: 2–99 cycles) ensures efficient air removal from lumened devices and absorbent loads—critical for achieving uniform steam penetration per EN 285 Annex C. All internal surfaces—including the 75 L chamber and three removable SUS304 baskets (Ø360 × 180 mm)—are electropolished to Ra ≤ 0.8 µm for enhanced cleanability and reduced biofilm adhesion. The unit complies with CE marking directives (2014/34/EU ATEX for electrical safety, 2014/68/EU PED for pressure equipment), and its firmware architecture supports audit trails, electronic signatures, and data integrity features aligned with FDA 21 CFR Part 11 Annex 11 expectations when paired with optional validated software modules.
Software & Data Management
Data logging is performed at user-selectable intervals (1–60 sec) for all critical parameters: chamber temperature, jacket temperature, absolute pressure, door status, phase sequence, and alarm events. Internal non-volatile memory retains ≥10,000 complete cycle records with timestamps, operator IDs, and cycle IDs. Data export is supported via USB 2.0 port in CSV format compatible with Excel, LabArchives, and LIMS platforms. Optional wireless temperature validation probes (rated to 130°C, NIST-traceable calibration at 0°C, 60°C, and 121°C) integrate seamlessly with included validation software, generating IQ/OQ/PQ-ready reports compliant with ISO 13485 and EU MDR Annex I requirements. An optional thermal printer (Epson or domestic thermal ribbon) provides real-time hardcopy output with embedded cycle ID and timestamp—ideal for batch release documentation.
Applications
The BXM-75M serves as a primary sterilization platform across multiple regulated environments: preparation of microbiological growth media in teaching and research labs; terminal sterilization of surgical kits and dental handpieces in outpatient clinics; depyrogenation of glass vials and stoppers in biopharma pilot-scale manufacturing; and routine decontamination of animal cage bedding and lab waste in AAALAC-accredited facilities. Its precise control over drying residual moisture (<1%) makes it suitable for moisture-sensitive applications such as lyophilization pre-treatment and silicone elastomer processing. The inclusion of melting and holding functions further extends utility to controlled-phase transitions in polymer characterization and formulation development workflows.
FAQ
What sterilization standards does the BXM-75M comply with?
It meets ISO 17665-1, EN 285, and EN 554 for steam sterilization process validation, and its design conforms to PED 2014/68/EU for pressure equipment.
Can the unit be validated for GMP use?
Yes—when equipped with optional wireless temperature sensors, audit-trail-enabled software, and IQ/OQ documentation packages, it supports full qualification per WHO TRS 977 and EU GMP Annex 1.
Is remote monitoring possible?
While the base model lacks Ethernet or Wi-Fi, optional RS485 Modbus RTU interface enables integration into centralized building management systems (BMS) or SCADA networks.
What maintenance is required for the W.P.S. filtration system?
The activated carbon and hydrophobic membrane elements require replacement every 12 months or after 500 cycles—whichever occurs first—as documented in the preventive maintenance log.
Does the BXM-75M support load pattern testing?
Yes—its programmable vacuum pulsing, adjustable drying ramp rates, and real-time temperature mapping capability enable rigorous load distribution studies per ISO 11140-1 Annex D.
