LDZM-40KCS Fully Stainless Steel Vertical Steam Sterilizer (Intelligent Model)

Overview

The LDZM-40KCS Fully Stainless Steel Vertical Steam Sterilizer (Intelligent Model) is a Class B gravity-displacement and pre-vacuum compatible steam sterilization system engineered for precision, reliability, and compliance in laboratory, healthcare, and research environments. Operating on the validated principle of saturated steam under controlled pressure and temperature, this sterilizer achieves microbial inactivation—including bacterial spores, viruses, and prions—through thermal denaturation of essential proteins and nucleic acids. Designed to meet international sterilization process standards—including ISO 17665-1 (Sterilization of health care products — Moist heat), EN 285 (Large steam sterilizers), and relevant sections of USP and FDA 21 CFR Part 820—the LDZM-40KCS delivers reproducible, auditable, and fully traceable sterilization cycles across diverse load types.

Key Features

• Fully austenitic 304 stainless steel construction throughout chamber, door, and jacket—ensuring corrosion resistance, cleanability, and long-term structural integrity under repeated thermal cycling.
• Rotary quick-opening door mechanism with integrated safety interlock: mechanical and electronic dual-locking prevents accidental opening during pressurized operation and ensures cycle termination before door release.
• Microprocessor-based intelligent control system with real-time PID temperature regulation and pressure feedback compensation—enabling precise maintenance of setpoint conditions within ±0.5 °C and ±5 kPa tolerance.
• Backlit LCD display with Chinese-language interface showing dynamic cycle status: phase (heat-up, sterilize, exhaust, dry), elapsed time, remaining time, chamber temperature, and pressure.
• Programmable sterilization parameters: temperature adjustable from 50 to 134 °C in 1 °C increments; exposure time configurable from 0 to 99 hours in 1-minute steps.
• Internal exhaust design eliminates external steam discharge during post-cycle depressurization—reducing ambient humidity, improving lab safety, and complying with HVAC containment requirements.
• Automatic water level monitoring with cut-off protection: halts heating if water falls below minimum operational threshold, preventing dry-heating damage to heating elements.
• Acoustic end-of-cycle alert followed by automatic power-down—enabling unattended operation while maintaining full accountability per GLP/GMP workflows.

Sample Compatibility & Compliance

The LDZM-40KCS accommodates wrapped and unwrapped instruments, glassware, liquid media (with slow-cool option), porous loads (e.g., textiles, filter units), and microbiological waste bags—provided load configuration adheres to EN 13060-compliant loading guidelines. Its 40 L chamber volume supports typical laboratory batch sizes without compromising steam penetration or air removal efficiency. The unit conforms to national medical device regulatory frameworks in China (NMPA Class II registration), carries CE marking for conformity with EU Medical Device Regulation (MDR 2017/745) Annex I essential requirements, and meets electrical safety standards IEC 61010-1 and IEC 60601-1. Optional validation accessories—including biological indicators (Geobacillus stearothermophilus spore strips), thermocouple mapping probes, and cycle documentation modules—are available to support IQ/OQ/PQ protocols.

Software & Data Management

While the base controller operates via embedded firmware without external PC dependency, optional RS232 or USB interfaces enable integration with laboratory information management systems (LIMS) or centralized sterilization monitoring platforms. Print module add-ons generate hard-copy cycle reports containing date/time stamp, operator ID (if configured), setpoints, actual temperature/pressure profiles, phase durations, and pass/fail status—fully compliant with ALCOA+ data integrity principles. Audit trail functionality records all parameter modifications, door openings, and emergency stops with time-stamped user attribution—meeting FDA 21 CFR Part 11 requirements when paired with appropriate access controls and electronic signature modules.

Applications

This sterilizer serves core functions across biosafety level 1–2 laboratories, university teaching facilities, pharmaceutical QC labs, clinical diagnostics centers, and food microbiology testing units. Typical use cases include sterilization of surgical instrument sets prior to packaging, preparation of agar plates and broth media, decontamination of centrifuge rotors and pipette tips, inactivation of recombinant DNA waste, and routine sanitization of reusable PPE components. Its broad temperature range also supports specialized applications such as depyrogenation validation studies and low-temperature steam-formaldehyde alternative processes (when validated per ISO 14937).

FAQ

What sterilization standards does the LDZM-40KCS comply with?
It meets ISO 17665-1, EN 285, EN 13060, and national Chinese standards YY 0504–2016 for vertical steam sterilizers.
Can it sterilize liquids safely?
Yes—equipped with programmable slow-cool and liquid-specific cycles to prevent boil-over and container rupture.
Is third-party validation support available?
Yes—factory-trained engineers provide IQ/OQ documentation templates, thermocouple mapping services, and BI challenge testing guidance.
Does it support networked fleet management?
Via optional Ethernet or Wi-Fi gateway modules, enabling remote status monitoring and centralized log aggregation.
What maintenance intervals are recommended?
Daily chamber inspection and gasket cleaning; quarterly safety valve calibration; annual full performance verification per ISO 13485 recommendations.