YXQ-LS-50SII Vertical Steam Autoclave
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | YXQ-LS-50SII |
| Quotation | USD 1,380 (FOB Shanghai) |
| Chamber Volume | 60 L |
| Max Operating Temperature | 135 °C |
| Max Operating Pressure | 0.22 MPa |
| Heating Power | 3.2 kW |
| Voltage/Frequency | 220 V ±10 % / 50 Hz ±2 % |
| External Dimensions (W×D×H) | 500 × 500 × 1080 mm |
| Internal Chamber Diameter × Height | Ø400 × 520 mm |
| Basket Dimensions (Ø × H × Qty) | Ø330 × 250 mm × 2 units |
| Temperature Range | 0–135 °C |
| Time Setting Range | 0–999 min |
| Safety Compliance | Meets TSG 21–2016 (China Special Equipment Safety Technical Supervision Regulation, Clause 49 on door interlock) |
Overview
The YXQ-LS-50SII Vertical Steam Autoclave is a fully self-contained, microprocessor-controlled sterilization system engineered for reliable, repeatable terminal sterilization of heat-stable laboratory and clinical materials. It operates on the principle of saturated steam under pressure—leveraging the well-established thermodynamic relationship between steam pressure and temperature to achieve microbial inactivation. At 0.22 MPa (2.2 bar gauge), the chamber achieves a nominal operating temperature of 135 °C, enabling rapid and validated sterilization cycles compliant with ISO 17665-1:2017 (Sterilization of health care products — Moist heat — Part 1: Requirements for development, validation and routine control of a sterilization process for medical devices). Designed for benchtop-to-floor-standing integration in biosafety level 1–2 laboratories, QC/QA facilities, teaching institutions, and small-scale pharmaceutical production support areas, the unit delivers consistent lethality (F0 ≥ 12 min) across its 60 L stainless-steel chamber.
Key Features
- Vertical orientation with space-efficient footprint (500 × 500 mm base), optimized for labs with constrained floor area
- Handwheel-actuated quick-opening door with integrated safety interlock mechanism—mechanically and electrically verified per TSG 21–2016 Clause 49, preventing pressurized operation when the door is not fully secured
- Full-chamber construction from AISI 304 stainless steel (EN 10088-1), including inner chamber, jacket, and door components—resistant to corrosion from repeated exposure to condensate, cleaning agents, and biological residues
- Self-sealing silicone gasket with auto-inflation design ensures uniform radial compression during pressurization, eliminating manual torque adjustment and reducing seal wear over time
- Dual independent safety systems: mechanical pressure relief valve (set at 0.25 MPa) and electronic overpressure cutoff with automatic steam venting
- Programmable microcontroller with real-time display of chamber temperature, pressure, elapsed time, and cycle phase (heat-up, sterilize, exhaust, dry)
- Automatic cold air purge sequence prior to sterilization—initiated by pressure differential sensing—to ensure steam saturation and eliminate air pockets that impair thermal penetration
- Low-water-level detection with audible/visual alarm and automatic heater shutoff to prevent dry-heating damage to heating elements
Sample Compatibility & Compliance
The YXQ-LS-50SII accommodates standard autoclave-compatible loads including wrapped instrument sets, culture media (e.g., agar, broth), glassware, textiles, and porous polymer components. Dual stainless-steel baskets (Ø330 × 250 mm) support staggered loading configurations to maximize thermal uniformity. The chamber geometry and steam distribution path are validated to meet temperature uniformity requirements per EN 285:2015 (Sterilization — Steam Sterilizers — Large Sterilizers), with deviations ≤ ±1.0 °C across all load positions during qualification. All electrical components conform to IEC 61010-1:2010 for laboratory equipment safety. While not pre-certified to FDA 21 CFR Part 11, the system supports manual recordkeeping compatible with GLP and GMP documentation workflows; optional RS-232 or USB data export enables traceable cycle log archiving.
Software & Data Management
The embedded control firmware provides non-volatile cycle memory for up to 10 user-defined programs, each storing temperature setpoint, hold time, drying duration (if enabled), and exhaust mode (gravity or vacuum-assisted). Cycle logs—including start time, peak temperature, minimum/maximum pressure, total elapsed time, and fault codes—are timestamped and retained in internal memory for ≥1,000 cycles. Data export via serial interface allows integration with laboratory information management systems (LIMS) or Excel-based audit trails. No proprietary software installation is required; raw .csv files are human-readable and compatible with statistical process control (SPC) analysis tools. Audit-ready documentation—including calibration certificates for integrated PT100 temperature sensors (±0.5 °C accuracy)—is supplied with each unit.
Applications
- Sterilization of microbiological culture media, buffers, and reagents in academic and industrial R&D labs
- Decontamination of biohazardous waste (solid and liquid) prior to disposal, per WHO Laboratory Biosafety Manual (4th ed.) guidelines
- Pre-sterilization of surgical instruments, pipette tips, and labware in veterinary clinics and diagnostic centers
- Validation support for steam sterilization process development, including BI (biological indicator) challenge studies using Geobacillus stearothermophilus
- Material compatibility testing of packaging components (e.g., Tyvek® pouches, medical-grade polypropylene) under accelerated aging conditions
FAQ
What is the maximum validated load capacity for this autoclave?
The 60 L chamber supports up to 45 L of porous load (e.g., wrapped instruments) or 50 L of liquid load (e.g., 5 L flasks × 8), provided minimum steam flow paths and chamber drain clearance are maintained per EN 285 Annex C.
Does the unit include a built-in printer or Ethernet connectivity?
No—data output is via RS-232 serial port only; external thermal printers or network-enabled data loggers must be connected separately.
Can the YXQ-LS-50SII perform fractional sterilization (tyndallization)?
Yes—by programming three consecutive 100 °C, 30-min cycles with 24-hr ambient incubation intervals, users can implement multi-cycle heat treatment for spore-rich materials.
Is third-party IQ/OQ/PQ validation support available?
Comprehensive validation protocols (including test templates, acceptance criteria, and blank execution records) are provided free of charge; on-site qualification assistance is available through authorized service partners in APAC and EMEA regions.
What maintenance intervals are recommended for long-term reliability?
Weekly chamber gasket inspection and lubrication, quarterly safety valve functional test, and annual calibration of temperature/pressure transducers—documented in the included Maintenance Logbook.

