BOXUN YXQ-LB-30SII Vertical Steam Sterilizer

Overview

The BOXUN YXQ-LB-30SII is a vertical steam sterilizer engineered for precision, safety, and regulatory compliance in laboratory, clinical, and research environments. It operates on the validated principle of saturated steam under pressure—leveraging the thermodynamic properties of moist heat to achieve microbial inactivation through protein denaturation and nucleic acid disruption. Designed to meet fundamental requirements for sterility assurance, it delivers consistent lethality (F₀ ≥ 12 min) across standard biological loads when operated within defined time–temperature–pressure profiles. Its 30 L chamber capacity supports routine sterilization of reusable instruments, surgical drapes, glassware, liquid media (including agar and broth), and porous packaging materials—making it suitable for ISO 13485-certified medical device reprocessing facilities, GLP-compliant life science labs, and agricultural microbiology units.

Key Features

• Patented manual-latch quick-opening door with integrated safety interlock: prevents door operation when chamber pressure exceeds 0.02 MPa, conforming to EN 285 and ASME BPVC Section IV design principles.
• Full SUS304 stainless steel construction: chamber, inner door, basket, and exterior casing resist corrosion from repeated exposure to condensate, alkaline cleaning agents, and saline residues—ensuring long-term dimensional stability and surface integrity.
• Microprocessor-based control system with real-time PID regulation: maintains ±0.5 °C temperature accuracy and ±0.01 MPa pressure resolution during dynamic sterilization cycles.
• Automated air removal sequence: employs gravity displacement with timed purge cycles followed by steam saturation verification—critical for achieving uniform thermal penetration in wrapped or porous loads.
• Dual independent safety protections: overtemperature cutoff (138 °C mechanical limiter) and overpressure relief valve (set at 0.25 MPa design limit) comply with national pressure vessel safety regulations (TSG 21-2016).
• Intelligent water management: low-water-level sensor triggers audible/visual alarm and halts heating; automatic shutdown prevents dry-heating damage to heating elements.
• End-of-cycle acoustic alert and status LED indicators provide unambiguous operational feedback without requiring interface interaction.

Sample Compatibility & Compliance

The YXQ-LB-30SII accommodates diverse load configurations including stainless steel instrument trays, textile packs, PETG/PVC pouches, borosilicate glass bottles (up to 1 L), and sealed culture tubes. It supports sterilization of liquids (e.g., nutrient broths, PBS, enzymatic solutions) using slow-cool-down protocols to prevent boil-over or container fracture. All cycle parameters—including dwell time, ramp rate, and exhaust mode—are configurable to align with ASTM F1055 (steam sterilization of medical devices), ISO 17665-1 (moist heat sterilization validation), and USP (sterility assurance for pharmaceutical preparations). The unit’s documented traceability features—including cycle log export via optional RS232 interface—support FDA 21 CFR Part 11 readiness when paired with compliant data acquisition software.

Software & Data Management

While the base configuration operates via embedded firmware with non-volatile cycle memory (retains ≥100 completed run records), optional serial communication enables integration with laboratory information management systems (LIMS) or centralized sterilization monitoring platforms. Cycle logs include timestamp, setpoint values, actual chamber temperature/pressure curves, door status transitions, and alarm events—all stored with millisecond-resolution timestamps. When configured with an external thermal printer (optional accessory), hard-copy output satisfies audit trail requirements under GLP and GMP frameworks. Firmware updates are performed via USB port with cryptographic signature verification to maintain system integrity.

Applications

• Hospital central sterile supply departments (CSSD): reprocessing of laparoscopic instruments, suction tips, and reusable gowns.
• Academic and industrial microbiology labs: sterilization of Petri dishes, pipette tips, and liquid growth media prior to aseptic handling.
• Pharmaceutical R&D: depyrogenation validation support for component contact surfaces and buffer preparation vessels.
• Agricultural biotechnology: substrate sterilization for fungal culture media and tissue culture explants.
• Veterinary diagnostic centers: decontamination of necropsy tools and sample collection kits between specimens.

FAQ

What is the maximum recommended load volume for optimal steam penetration?
For wrapped instruments or porous materials, load mass should not exceed 70% of chamber volume (≤21 L); for liquids, fill containers to ≤75% capacity and use slow exhaust mode.
Does the unit support programmable multi-step cycles (e.g., pre-vacuum + sterilize + drying)?
No—the YXQ-LB-30SII implements fixed gravity-displacement cycles only; drying functionality is not integrated.
Is third-party IQ/OQ validation documentation available?
Yes—BOXUN provides standardized installation and operational qualification templates aligned with ISO 13485 Annex A, which may be customized by qualified validation engineers.
Can the sterilizer be installed in non-dedicated utility rooms?
It requires stable 220 V AC power with dedicated 16 A circuit, floor-level drainage for condensate discharge, and ambient room temperature between 10–35 °C with relative humidity <80% RH.
What maintenance intervals are specified for pressure vessel certification?
Annual inspection by authorized pressure equipment inspector is mandatory per local regulatory authority; safety valve calibration must be verified every 6 months.