BOXUN YXQ-50G Vertical Steam Autoclave

Overview

The BOXUN YXQ-50G Vertical Steam Autoclave is a CE-compliant, microprocessor-controlled sterilization system engineered for precision, repeatability, and operational safety in laboratory, clinical, and research environments. It operates on the fundamental principle of saturated steam under pressure—leveraging the thermodynamic properties of moist heat to achieve microbial inactivation through protein denaturation and nucleic acid disruption. At its rated maximum operating conditions of 135 °C and 0.22 MPa (equivalent to ~2.2 bar gauge), the unit delivers validated sterilization cycles compliant with ISO 17665-1 (Sterilization of health care products — Moist heat) and aligns with core requirements of EN 285 (Large steam sterilizers) for Class B autoclaves. Its 50-liter stainless-steel chamber (SUS304 construction) supports batch processing of wrapped instruments, unwrapped tools, porous loads, liquids, and culture media—making it suitable for routine decontamination in biomedical labs, veterinary clinics, pharmaceutical QC facilities, and academic teaching laboratories.

Key Features

• Vertical design with space-efficient footprint (485 × 605 × 1120 mm), optimized for benchtop or floor-mounted installation in constrained lab spaces
• Self-sealing silicone gasket system enabling automatic cold air purge via internal dynamic venting prior to pressurization
• Interlocked handwheel door mechanism meeting ASME PVHO-1 and EN 13445 safety standards—mechanically prevents opening under pressure and requires deliberate release only after full depressurization
• Dual-stage thermal protection: independent overtemperature cutoff at 138 °C (design limit) and real-time PID-regulated temperature control during all phases
• Integrated low-water level sensor with audible/visual alarm and automatic power cutoff to prevent dry-heating damage
• Overpressure relief valve calibrated to 0.25 MPa (design pressure), discharging excess steam directly into a 3 L condensate collection bottle
• Programmable cycle logic supporting three standardized workflows: (a) sterilize-only; (b) sterilize + exhaust; (c) sterilize + exhaust + drain + drying
• Microprocessor-based controller with digital display, password-protected parameter editing, and non-volatile memory for up to 10 user-defined programs

Sample Compatibility & Compliance

The YXQ-50G accommodates heterogeneous load configurations including stainless-steel surgical kits, glassware (flasks, pipettes, Petri dishes), textile dressings, liquid media (up to 3 L per container, with anti-boil-over agitation), and polymer-based labware compatible with steam exposure. Chamber geometry (Ø400 × 640 mm) and dual-tier SUS304 baskets (Ø360 × 240 mm each) ensure uniform steam penetration and gravity-assisted air removal. All wetted components conform to ASTM A240/A240M for 304 stainless steel, guaranteeing resistance to chloride-induced pitting and alkaline cleaning agents. The system supports validation documentation per ISO 13485 and FDA 21 CFR Part 820 requirements; optional thermal printer enables direct output of cycle logs—including start time, peak temperature, hold duration, pressure profile, and end-of-cycle status—for GLP/GMP traceability.

Software & Data Management

While the YXQ-50G operates via embedded firmware without external PC dependency, its controller provides audit-ready data integrity features: timestamped cycle records stored internally (minimum 100 cycles), tamper-resistant parameter locking, and event-driven logging (e.g., door open/close, water refill, alarm activation). Optional RS232 or USB-to-serial interface enables connection to third-party LIMS or ELN platforms for centralized archiving. When equipped with the thermal printer module, outputs include operator ID (if entered), cycle number, load type code, sterilization temperature/time, drying parameters, and pass/fail flag—structured to satisfy FDA 21 CFR Part 11 electronic record requirements when paired with institutional procedural controls.

Applications

• Routine sterilization of reusable surgical instruments and dental tools in outpatient clinics and university health centers
• Preparation of sterile agar plates, broth media, and buffered saline solutions in microbiology teaching labs
• Decontamination of biohazardous waste (e.g., spent cultures, contaminated PPE) prior to disposal in BSL-2 facilities
• Validation support for sterilization process development—used as a reference unit during comparative studies with hydrogen peroxide or ethylene oxide systems
• Media melting and temperature-controlled holding for agarose gel preparation, antibiotic stock dilution, and enzyme reconstitution workflows

FAQ

What is the maximum recommended fill volume for liquid loads?

For safe operation and prevention of boil-over, liquid containers should not exceed 70% of nominal capacity; total liquid volume per cycle must remain ≤3 L when using standard glass bottles.
Does the unit comply with international sterilization standards?

Yes—the YXQ-50G meets the functional safety and performance criteria of ISO 17665-1 and EN 285 for Class B large sterilizers, and its pressure vessel conforms to PED 2014/68/EU when installed per manufacturer instructions.
Can the drying function be used independently of sterilization?

No—drying is only available as a post-sterilization phase within predefined multi-step cycles; standalone drying is not supported.
Is validation support documentation provided?

BOXUN supplies a Factory Acceptance Test (FAT) report, material certificates for SUS304 components, and electrical safety test summaries. IQ/OQ protocols are available upon request for qualified customers.
What maintenance intervals are recommended?

Daily: visual inspection of door seal and drain filter; weekly: chamber interior wipe-down with neutral detergent; quarterly: verification of pressure transducer calibration and safety valve function by authorized service technician.