BOXUN YXQ-100A Vertical Steam Sterilizer
| Brand | BOXUN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | YXQ-100A |
| Instrument Type | Vertical |
| Max Temperature | 135°C |
| Max Pressure | 0.22 MPa |
| Chamber Dimensions | Ø400 × 830 mm |
| External Dimensions | 485 × 605 × 1290 mm |
| Chamber Volume | 100 L |
| Power | 3.5 kW |
| Voltage/Frequency | 220 V ±10%, 50 Hz ±2% |
| Operating/Design Temp | 135°C / 138°C |
| Operating/Design Pressure | 0.22 MPa / 0.25 MPa |
| Timer Range | 0–120 min |
| Basket Dimensions | Ø360 × 240 mm × 3 pcs |
| Water Level Monitoring | Dual-level (high/low) with auto-shutoff |
| Exhaust Modes | Fast vent, slow vent, no vent |
| Safety Features | Interlocked door mechanism, overtemperature cutoff, pressure relief valve, self-sealing gasket, cold-air purge automation |
| Optional Functions | Melting &保温 mode (60–98°C, 0–999 min |
Overview
The BOXUN YXQ-100A Vertical Steam Sterilizer is a fully automated, gravity-displacement-type steam sterilization system engineered for reliable terminal sterilization of heat-stable laboratory and clinical materials. It operates on the fundamental principle of saturated steam under controlled pressure and temperature to achieve microbial inactivation—primarily through protein denaturation and nucleic acid disruption. Designed to meet internationally recognized sterilization validation requirements—including ISO 17665-1 (Sterilization of health care products — Moist heat) and EN 285 (Large steam sterilizers)—the YXQ-100A delivers consistent lethality (F0 ≥ 12 min typical for standard 121°C/15 min cycles) across its 100 L stainless-steel chamber. Its vertical configuration optimizes floor space utilization while maintaining accessibility for loading/unloading trays, glassware, wrapped instruments, and liquid media bottles—making it especially suited for mid-volume academic labs, quality control units, and small-scale biomedical facilities requiring routine, repeatable sterilization without reliance on external validation services.
Key Features
- Interlocked handwheel door mechanism compliant with ASME PVHO-1 and GB 8599 safety standards, preventing accidental opening during pressurized operation
- 304 stainless steel construction for chamber, jacket, and baskets—resistant to corrosion from repeated exposure to condensate, alkaline detergents, and saline solutions
- Microprocessor-based PID temperature and pressure control with real-time digital display and cycle logging (time, temp, pressure, phase status)
- Automatic cold-air purge via self-venting cycle prior to steam saturation—ensuring uniform chamber temperature distribution and eliminating air pockets that compromise sterility assurance
- Dual water-level sensing with audible/visual alarm and automatic power cutoff to prevent dry-heating damage to heating elements
- Three programmable exhaust strategies: rapid depressurization (for solid loads), slow exhaust (for liquids to prevent boil-over), and no-exhaust hold (for post-sterilization equilibration)
- Integrated 3 L condensate collection bottle with internal recirculation path to minimize external steam discharge and improve energy efficiency
- Configurable melting and holding function for agar preparation—supporting precise temperature ramping (60–98°C) and extended thermal stabilization (40–60°C), traceable per USP compounding guidelines
Sample Compatibility & Compliance
The YXQ-100A accommodates a broad range of load types: wrapped surgical kits, unwrapped metal instruments, porous textile packs, glassware, plastic Petri dishes (polypropylene-compatible), and up to 15 L of aqueous culture media in vented bottles. Chamber geometry (Ø400 × 830 mm) supports standardized DIN/ISO loading patterns and permits placement of biological indicators (e.g., Bacillus stearothermophilus spore strips) at geometrically defined challenge locations. The unit conforms to national mandatory safety standard GB 4793.1 (Electrical equipment for laboratory use) and electromagnetic compatibility requirements per GB/T 18268.1. While not pre-certified to FDA 21 CFR Part 11, its data logging architecture (with optional RS232 printer output) supports audit-ready documentation when integrated into GLP/GMP environments requiring traceability of sterilization parameters.
Software & Data Management
The embedded controller records full-cycle metadata—including start time, actual temperature/pressure profiles, dwell duration, and exhaust sequence—with timestamped entries stored in non-volatile memory (retains ≥1000 cycles). Optional serial interface enables connection to external PCs for CSV export and integration into LIMS or electronic lab notebooks. Cycle reports include pass/fail flags based on user-defined acceptance thresholds (e.g., minimum F0, maximum deviation from setpoint). No proprietary software is required; raw data files are human-readable and compatible with common spreadsheet applications for statistical process analysis (e.g., Cp/Cpk evaluation of cycle consistency).
Applications
- Routine sterilization of reusable labware (pipette tips, centrifuge tubes, flasks) in university teaching and research laboratories
- Preparation and sterilization of microbiological growth media—including nutrient broths, selective agars, and antibiotic-supplemented formulations
- Decontamination of biohazardous waste prior to autoclave validation or off-site disposal
- Processing of veterinary clinic instrument sets under ISO 15883-1-compliant protocols
- Supporting ISO/IEC 17025-accredited testing labs where documented thermal lethality is required for method validation
FAQ
What is the maximum allowable fill volume for liquid loads?
For safe operation without boil-over, liquid containers should be filled to ≤75% capacity and placed upright with loosened caps. Total liquid volume per cycle must not exceed 40 L to maintain adequate steam penetration and pressure stability.
Does the unit support validation according to HTM 2030 or EU Annex 1?
While the YXQ-100A provides essential process variables (T, P, t) with sufficient resolution for initial qualification, formal compliance with HTM 2030 or EU GMP Annex 1 requires additional third-party IQ/OQ/PQ execution, thermocouple mapping, and biological indicator challenge studies—none of which are supplied with the base unit.
Can the sterilizer be connected to a building’s central steam supply?
No—the YXQ-100A is electrically heated and generates steam internally via immersion heaters; it does not accept external steam input.
Is the chamber jacketed or single-wall?
It features a single-wall chamber with insulated outer casing—sufficient for standard gravity-displacement cycles but not designed for vacuum-assisted pre-vacuum or dynamic-air-removal cycles.
What maintenance intervals are recommended?
Daily: inspect door gasket integrity and clean chamber drain strainer. Quarterly: verify pressure gauge calibration against NIST-traceable reference and test safety valve lift pressure. Annually: perform full thermocouple calibration and review log file integrity.
