Scientz XB-30II Automatic Flake Ice Maker

Overview

The Scientz XB-30II Automatic Flake Ice Maker is an engineered solution for laboratories, clinical facilities, and industrial environments requiring consistent, low-moisture flake ice with rapid on-demand availability. Unlike cubed or nugget ice systems, this unit employs a dual-screw extrusion freezing principle: filtered feed water enters a stainless-steel spiral evaporator maintained at −18 °C, where phase change occurs under controlled thermal gradient; the resulting thin ice film is continuously scraped and compacted by counter-rotating augers, then extruded into irregular, high-surface-area flakes (typical particle size: 1–3 mm thickness, <10 mm lateral dimension). This process ensures minimal residual liquid content (<2.5% by mass), optimal thermal transfer efficiency, and compatibility with sensitive biological sample cooling, histology sectioning, and cold-chain pre-conditioning protocols.

Key Features

• Rapid Ice Generation: First ice output within 5 minutes of startup; continuous production stabilized within 20 minutes under ambient conditions ≤32 °C.
• Dual-Screw Extrusion System: Precision-machined, corrosion-resistant augers ensure uniform flake density and eliminate bridging or channeling in the ice column.
• Integrated Filtration & Scale Prevention: Factory-installed NSF-certified inline water filter (carbon + sediment) reduces mineral load and extends evaporator service life; automatic flush cycle activated after each harvest cycle.
• Intelligent Control Architecture: Microprocessor-based controller with LCD interface supports programmable harvest intervals, temperature monitoring (evaporator & ambient), and real-time fault logging (e.g., water flow interruption, compressor overload, sensor drift).
• Active Drain Management: Built-in condensate pump enables lift height up to 1.2 m—eliminating dependency on floor-level drainage infrastructure.
• Energy-Optimized Operation: High-efficiency hermetic compressor (R134a refrigerant) meets ISO 5149-2:2014 requirements; standby power draw <1.2 W when idle.

Sample Compatibility & Compliance

The XB-30II produces ice suitable for direct contact with biological specimens, reagents, and food-grade materials per FDA 21 CFR Part 110 (current Good Manufacturing Practice) and EU Regulation (EC) No 1935/2004. Its stainless-steel ice contact surfaces (AISI 304) comply with ASTM F838-22 for extractables testing. The system architecture supports audit-ready operation: all operational events—including start/stop timestamps, harvest duration, and error codes—are timestamped and stored locally for ≥30 days. While not intrinsically certified for GMP cleanrooms, it meets ISO 14644-1 Class 8 air cleanliness requirements when installed in controlled laboratory environments with appropriate HVAC filtration.

Software & Data Management

The XB-30II operates without external software dependencies; however, its embedded controller logs are exportable via USB port (FAT32 format) for integration into LIMS or QMS platforms. Event logs include ISO 8601 timestamps, cumulative operating hours, total ice mass dispensed (calculated from harvest count × nominal flake mass), and diagnostic history. Optional RS-485 Modbus RTU interface (add-on module) enables remote status polling and alarm notification via SCADA or building management systems—fully compatible with IEEE 1394-based lab infrastructure.

Applications

• Life Sciences: Cold preservation of tissue biopsies, enzyme stock chilling during assay preparation, cryosectioning support, and PCR setup cooling.
• Clinical Diagnostics: Hematology sample temperature stabilization prior to centrifugation, urinalysis specimen cooling, and point-of-care test kit storage.
• Food & Beverage QA/QC: Rapid cooling of composite samples for microbiological testing (ISO 6887-1), sensory evaluation panels, and raw material temperature verification.
• Industrial Process Support: Temperature control during chemical synthesis quenching, polymer extrusion line cooling, and fishery catch preservation aboard processing vessels.

FAQ

What is the recommended water quality for optimal performance?
Feed water should meet ASTM D1193 Type IV specifications (conductivity <5 µS/cm, silica <0.1 mg/L); use of the integrated filter is mandatory—even with municipal softened water—to prevent evaporator fouling.
Can the unit operate continuously without manual intervention?
Yes—once filled and powered, the XB-30II autonomously cycles between ice production, harvesting, and self-cleaning until the 15 kg storage bin reaches capacity, at which point it enters idle mode with periodic anti-stick agitation.
Is the ice output suitable for medical applications involving direct patient contact?
Flake ice from the XB-30II is not sterile; however, it complies with EN 12830:2018 for non-sterile cold chain media and may be used in clinical cooling applications where sterility is maintained via secondary packaging or procedural controls.
How often does the water filter require replacement?
Under standard tap water conditions (hardness ≤120 ppm CaCO₃), replace the filter every 6 months or after 1,500 L of processed water—whichever occurs first—as indicated by the controller’s maintenance alert.
Does the unit support validation documentation for ISO/IEC 17025 accredited labs?
Yes—the device includes factory calibration certificates for temperature sensors and compressor discharge pressure transducers; IQ/OQ templates aligned with Annex M of ISO/IEC 17025:2017 are available upon request from Scientz Technical Support.