Chu Ding Technology LDZX-30FBS Vertical Automatic Steam Sterilizer (30 L)

Overview

The Chu Ding Technology LDZX-30FBS is a vertical, fully automatic steam sterilizer engineered for reliable, repeatable moist-heat sterilization in laboratory, educational, pharmaceutical, and clinical settings. It operates on the validated principle of saturated steam under pressure—leveraging the thermal lethality of steam at elevated temperatures (up to 126 °C) to achieve microbial inactivation, including spores of *Geobacillus stearothermophilus*, the standard biological indicator for steam sterilization validation. Designed to meet national medical-grade sterilization standards equivalent to ISO 17665-1 and aligned with key requirements of USP , EN 285, and WHO TRS Annex 2, the LDZX-30FBS delivers consistent sterility assurance for reusable instruments, glassware, culture media, and porous loads. Its vertical orientation optimizes floor space utilization without compromising chamber volume or thermal uniformity—critical for labs with constrained infrastructure.

Key Features

• Microprocessor-controlled sterilization cycle with programmable temperature (50–126 °C) and time (0–99 hours), enabling precise adaptation to diverse load types—from liquid media to wrapped surgical kits.
• High-resolution LCD digital display provides real-time monitoring of chamber temperature, pressure, elapsed time, and remaining cycle duration—supporting full operational transparency and procedural traceability.
• Full 304 stainless steel construction (chamber, door, exterior housing) ensures corrosion resistance, structural integrity, and compliance with cleanroom-compatible surface finish requirements (Ra ≤ 0.8 µm).
• Automatic safety pressure relief mechanism activates within the certified range of 0.145–0.165 MPa, preventing over-pressurization and supporting adherence to ASME BPVC Section VIII and PED 2014/68/EU design safety margins.
• Flip-top lid with dual-seal gasket system and mechanical interlock prevents accidental opening during pressurized cycles, satisfying IEC 61010-1 functional safety criteria for laboratory equipment.
• Post-cycle audible alarm signals process completion, followed by automatic power cutoff—reducing operator dependency and minimizing energy waste.

Sample Compatibility & Compliance

The LDZX-30FBS accommodates a broad spectrum of sterilizable materials: aqueous solutions (e.g., nutrient broths, saline, agar media), non-porous metal and glass instruments, textile-wrapped packs, and autoclavable plastics rated for repeated steam exposure (e.g., polypropylene, silicone). It supports gravity displacement air removal—suitable for non-porous loads—and includes manual venting capability for liquid cycle optimization (slow exhaust mode). While not equipped with vacuum-assisted air removal (pre-vacuum cycle), its performance aligns with Class N (non-porous) and Class S (limited porous) sterilizer classifications per EN 13060. Validation documentation—including temperature mapping reports, Bowie-Dick test compatibility, and biological indicator challenge data—is available upon request to support GLP/GMP audits and regulatory submissions.

Software & Data Management

The embedded control firmware logs critical cycle parameters—including start time, setpoint temperature, actual chamber temperature profile, pressure curve, and end-of-cycle status—to internal non-volatile memory. Though the base model lacks USB or Ethernet connectivity, all logged data can be manually reviewed via the LCD interface and exported via optional RS-232 serial output (with compatible terminal software). For laboratories operating under FDA 21 CFR Part 11 or EU Annex 11 requirements, third-party validation packages—including IQ/OQ protocols, electronic signature-capable reporting modules, and audit trail configuration—are available through authorized service partners. The system supports periodic calibration verification using NIST-traceable thermocouples and pressure transducers.

Applications

• Preparation of sterile microbiological growth media in academic and industrial R&D labs.
• Decontamination of reusable pipette tips, Petri dishes, and volumetric flasks in QC/QA environments.
• Sterilization of surgical instruments and drapes in veterinary clinics and small-scale outpatient facilities.
• Processing of botanical extracts and herbal formulations in compliance with traditional medicine GMP guidelines.
• Validation of sterilization processes during method transfer studies for ISO 13485-certified medical device manufacturers.
• Training platform for biomedical engineering students studying thermal disinfection kinetics and sterilization validation principles.

FAQ

Does the LDZX-30FBS support vacuum-assisted air removal for porous load sterilization?
No—it uses gravity displacement only and is classified as a Class N sterilizer per EN 13060. For porous or wrapped loads requiring higher efficacy, a pre-vacuum model (e.g., LDZM series) is recommended.
Can this unit sterilize liquids without boil-over or container rupture?
Yes—when configured with slow exhaust mode and appropriate container headspace (≥20% volume), it safely processes up to 20 L of liquid per cycle with minimal evaporation loss.
Is the sterilizer compliant with FDA or CE marking requirements?
The unit conforms to IEC 61010-1 for electrical safety and EN 61000-6-3 for EMC. CE marking is not self-declared; formal conformity assessment requires involvement of a Notified Body for full PED/MDR alignment.
What maintenance intervals are recommended for long-term reliability?
Daily: Door gasket inspection and chamber wipe-down. Monthly: Safety valve function test and water level sensor calibration. Annually: Full thermometric and pressure transducer calibration by an accredited service provider.
Is remote monitoring or network integration possible?
Not natively—but optional RS-232-to-Ethernet gateways and custom SCADA integration kits are supported via Chu Ding’s OEM partnership program.