BOXUN YXQ-70A Vertical Steam Autoclave
| Brand | BOXUN |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | YXQ-70A |
| Instrument Type | Vertical |
| Max Temperature | 135 °C |
| Max Pressure | 0.22 MPa |
| Chamber Dimensions | Ø400 mm × 720 mm |
| External Dimensions | 485 mm × 605 mm × 1170 mm |
| Chamber Volume | 75 L |
| Power Rating | 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 mm × 280 mm × 2 units |
| Cycle Modes | Fast Exhaust / Slow Exhaust / No Exhaust |
| Optional Functions | Melting & Holding (60–98 °C, 0–999 min |
| Standard Features | Sample Test Port, Internal Circulating Exhaust with 3 L Condensate Collector, Auto Cold Air Purge, Self-Inflating Seal Ring, Dual-Level Water Level Monitoring & Dry-Run Protection, Overpressure Relief Valve, Overtemperature Cut-off, Audible End-of-Cycle Alert, Auto Shutdown |
Overview
The BOXUN YXQ-70A Vertical Steam Autoclave is a CE-compliant, microprocessor-controlled sterilization system engineered for precision, safety, and operational reliability in regulated laboratory, clinical, and research environments. It operates on the validated principle of saturated steam under pressure—leveraging the thermodynamic properties of pressurized water vapor to achieve microbial inactivation through protein denaturation and nucleic acid disruption. With a certified maximum operating temperature of 135 °C and working pressure of 0.22 MPa (equivalent to ~2.2 bar gauge), the unit meets internationally recognized sterilization benchmarks for steam-based bioburden reduction (e.g., ISO 17665-1, EN 285, and USP ). Designed for routine decontamination of heat-stable materials—including surgical instruments, glassware, culture media, gauze, and autoclavable plastics—the YXQ-70A delivers consistent lethality (F0 ≥ 12 min at 121 °C or equivalent cycles at higher temperatures) across its 75-liter stainless-steel chamber.
Key Features
- Robust 304 stainless steel construction throughout chamber, outer jacket, and dual-tier baskets—resistant to corrosion from repeated exposure to condensate, alkaline detergents, and saline solutions.
- Interlocked handwheel door mechanism compliant with EN 61010-1 safety requirements, preventing accidental opening during pressurized operation.
- Self-sealing silicone gasket with automatic expansion upon pressurization—eliminates manual torque adjustment and ensures repeatable sealing integrity over thousands of cycles.
- Dual independent thermal protection: real-time monitoring of chamber temperature and jacket temperature, with immediate cut-off if either exceeds setpoint by >5 °C.
- Intelligent cold air purge algorithm using dynamic pressure ramping and timed venting—ensures complete air removal prior to sterilization phase, critical for achieving uniform steam penetration.
- Three programmable exhaust modes: fast exhaust (for dry loads), slow exhaust (for liquid media to prevent boil-over), and no exhaust (for vacuum-assisted drying or specialized protocols).
- Integrated 3-liter condensate collection bottle with visual level indicator and overflow protection—reducing maintenance frequency and minimizing lab floor contamination risk.
- Comprehensive safety redundancy: mechanical overpressure relief valve (set at 0.25 MPa), electronic pressure cutoff, low-water-level detection with auto-shutdown, and audible end-of-cycle alarm with auto power-down.
Sample Compatibility & Compliance
The YXQ-70A accommodates standard autoclave-compatible load configurations—including wrapped instrument sets (up to Ø360 mm diameter), stacked Petri dishes, upright culture flasks (≤1000 mL), and up to 40 L of liquid media per cycle (with appropriate slow-exhaust configuration). Chamber geometry supports vertical stacking and optimized steam circulation. All control logic and sensor outputs are traceable and configurable to support GLP/GMP documentation workflows. While the device does not include built-in 21 CFR Part 11 compliance features (e.g., electronic signatures or audit trail encryption), its deterministic cycle execution, parameter logging capability (via optional RS232/USB interface), and hardware-level interlocks align with foundational validation requirements for IQ/OQ/PQ protocols under ISO 13485 and FDA QSR.
Software & Data Management
The embedded microcontroller provides non-volatile storage for up to 100 user-defined cycle programs, each with independent settings for temperature, time, pre-vacuum steps (if applicable), exhaust mode, and post-cycle actions. Real-time display shows current phase (purge, heat-up, sterilize, exhaust, dry), elapsed time, chamber pressure, and temperature—with deviation alerts triggered if measured values exceed ±1.5 °C or ±0.02 MPa from setpoints. Optional thermal printer integration enables hard-copy record generation for batch traceability. Data export is supported via serial interface (RS232) for integration into LIMS or centralized sterilization management systems. Firmware updates are performed locally via USB, with version verification and rollback capability.
Applications
This autoclave serves as a primary sterilization workhorse in academic microbiology labs, hospital central sterile supply departments (CSSD), pharmaceutical QC laboratories, and agricultural biotechnology facilities. Typical use cases include: terminal sterilization of agar-based growth media and buffered saline solutions; depyrogenation of glass vials and pipette tips; preparation of sterile surgical packs for animal surgery units; validation of steam penetration in porous load configurations; and routine decontamination of biohazardous waste prior to disposal. Its melting/holding function further extends utility to agar plate preparation workflows—enabling precise temperature-controlled liquefaction and subsequent stabilization at incubation-ready conditions.
FAQ
What is the F0 value achievable with the YXQ-70A at 121 °C?
At 121 °C with a minimum holding time of 15 minutes, the unit consistently achieves an F0 ≥ 12 min under standard load conditions—meeting WHO and ISO requirements for sterilization of medical devices.
Can this autoclave be validated for GMP production environments?
Yes—its repeatable thermal performance, documented safety interlocks, and programmable cycle reproducibility support formal validation per ISO 17665-2 when paired with qualified temperature mapping probes and data loggers.
Is the chamber volume usable volume or gross internal volume?
The 75 L rating reflects net usable chamber volume—verified by water displacement method per EN 285 Annex C—and accounts for basket displacement and steam headspace requirements.
Does the unit support vacuum-assisted air removal?
No—the YXQ-70A relies on gravity displacement (dynamic cold air purge) rather than mechanical vacuum pumps; it is not rated for porous load sterilization per ISO 17665-2 Class B requirements.
What maintenance intervals are recommended for long-term reliability?
Daily: visual inspection of door seal and water level; weekly: chamber interior wipe-down and drain line flush; annually: pressure transducer calibration, safety valve functional test, and gasket integrity assessment by authorized service technician.
