BOXUN YXQ-100SII Vertical Steam Sterilizer

Overview

The BOXUN YXQ-100SII 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 fundamental 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 internationally recognized thermal validation requirements, the YXQ-100SII delivers consistent lethality (F₀ ≥ 12 min) across its 100 L chamber when operated within validated cycles (e.g., 121 °C for 15–20 min or 135 °C for 3–5 min). Its vertical orientation optimizes floor space utilization without compromising chamber volume or load capacity, making it suitable for medium-throughput facilities requiring routine sterilization of instruments, glassware, culture media, textiles, and porous loads.

Key Features

• Robust stainless-steel construction: Chamber, inner door, and baskets fabricated from SUS304 austenitic stainless steel—resistant to corrosion from repeated exposure to condensate, alkalis, and mild acids encountered during sterilization and cleaning cycles.
• Interlocked manual quick-opening door: Mechanical safety interlock prevents door opening under pressure; integrated self-sealing gasket expands under steam pressure to ensure leak-tight integrity throughout the cycle.
• Intelligent microcontroller system: Real-time monitoring of chamber temperature, pressure, and time with automatic cold-air purge prior to steam saturation—ensuring uniform heat distribution and eliminating air pockets that compromise sterility assurance.
• Dual safety protection architecture: Includes independent overtemperature cutoff (138 °C mechanical limiter), low-water level detection with automatic power cutoff, and overpressure relief valve (set at 0.25 MPa design limit) compliant with ASME BPVC Section VIII and GB/T 150 standards.
• Acoustic end-of-cycle alert: Audible buzzer signals completion; optional RS232 interface supports external printer integration for hard-copy cycle documentation (subject to local regulatory acceptance).

Sample Compatibility & Compliance

The YXQ-100SII accommodates diverse load configurations—including wrapped instrument sets, unwrapped metal tools, liquid-filled bottles (with vented caps), agar plates, and textile packs—within its Ø400 mm × 830 mm cylindrical chamber. Three removable SUS304 baskets (Ø360 mm × 240 mm each) facilitate organized loading and thermal uniformity assessment. The unit complies with national safety and performance standards including GB 8599–2008 (Chinese standard for large steam sterilizers) and conforms to ISO 17665-1:2017 principles for moist heat sterilization process development and validation. While not pre-certified to EN 285 or ANSI/AAMI ST79, its operational parameters and safety architecture align with foundational requirements for GLP-compliant laboratories and ISO 13485-certified medical device manufacturing support environments.

Software & Data Management

The embedded control system provides non-volatile cycle storage for up to 10 programmable sterilization profiles, each configurable with hold time, ramp rate, drying phase (if applicable), and automatic post-cycle cooling delay. Cycle logs—including start/end timestamps, peak temperature/pressure values, and alarm events—are retained in internal memory for retrieval via front-panel navigation. For audit readiness, optional serial output enables connection to external data loggers or LIMS-compatible systems. Though lacking built-in 21 CFR Part 11-compliant electronic signatures or role-based access control, the device supports traceability when integrated into broader quality management frameworks requiring documented evidence of sterilization efficacy and equipment maintenance history.

Applications

• Sterilization of reusable surgical instruments, forceps, and clamps in university teaching hospitals and outpatient clinics.
• Preparation of microbiological growth media (e.g., nutrient agar, LB broth) in academic and industrial R&D labs.
• Decontamination of biohazardous waste bags and contaminated labware in BSL-2 containment facilities.
• Treatment of soil samples and plant propagation materials in agricultural research stations adhering to phytosanitary protocols.
• Validation of packaging integrity for terminally sterilized devices during early-stage medical device development.

FAQ

What is the maximum allowable load weight per cycle?
The YXQ-100SII does not specify a maximum mass rating; however, optimal steam penetration requires maintaining ≥25% free chamber volume. Overloading may impede air removal and cause non-uniform heating.
Can this sterilizer be used for liquid sterilization?
Yes—liquids such as culture media may be sterilized using the dedicated liquid cycle with extended exhaust and slow-cooling phases to prevent boil-over; containers must remain uncapped or use vented closures.
Is third-party IQ/OQ/PQ validation support available?
BOXUN provides technical documentation (user manual, electrical schematics, material certifications) required for vendor-led qualification; full validation services are typically performed by accredited third-party providers.
Does the unit include a biological indicator port?
A standard sterilization test port (6 mm threaded) is provided on the chamber wall for placement of biological indicators or thermocouple probes during routine performance verification.
What maintenance intervals are recommended?
Daily: Visual inspection of door seal and water level; weekly: chamber drain line flush; quarterly: safety valve functional test and gasket integrity check per manufacturer guidelines.