SCIENTZ XW-50B Vortex Mixer

Overview

The SCIENTZ XW-50B Vortex Mixer is a precision-engineered laboratory vortex shaker designed for reproducible, high-throughput sample homogenization across diverse life science and analytical workflows. Utilizing a brushless DC motor architecture, it delivers stable rotational energy transfer via horizontal circular oscillation—generating consistent orbital motion with a fixed 4 mm diameter displacement. This mechanical design ensures uniform shear force distribution across tube contents without cavitation or thermal drift, making it suitable for sensitive applications including cell suspension reconstitution, enzyme reaction mixing, immunoassay plate preparation, and nucleic acid extraction buffer equilibration. Unlike analog or gear-driven alternatives, the XW-50B’s microprocessor-controlled drive system eliminates torque drop at low speeds and maintains ±10 rpm stability across its full 500–2800 rpm operating range—critical for method transfer between labs and long-duration incubation-mixing protocols.

Key Features

• Triple-mode operation: Constant-speed mode for steady-state mixing; pulse mode for intermittent agitation to prevent foaming or heat accumulation; programmable mode supporting multi-step time/speed sequences for unattended operation.
• High-resolution LED interface displaying real-time operational parameters—including active mode, current rpm, elapsed/remaining time, and user-defined settings—with intuitive button navigation and non-volatile memory retention.
• Modular foam holder system compatible with standard tube formats: Φ11 mm (50 × 5 mL), Φ14 mm (50 × 10–15 mL), and Φ27 mm (15 × 50 mL) configurations—enabling rapid adaptation to assay-specific vessel geometry without tooling.
• Robust mechanical construction featuring an aluminum alloy base frame and reinforced polymer housing, engineered for vibration damping and structural integrity during continuous high-speed operation.
• Low-noise performance (<55 dB(A) at 2800 rpm) achieved through balanced rotor dynamics and acoustic insulation—meeting ISO 15702 requirements for ambient noise in shared laboratory environments.
• Compliance-ready design: Supports GLP/GMP documentation workflows via timestamped parameter logging (when integrated with external data acquisition systems); compatible with audit-trail-enabled LIMS platforms via optional RS-232 or USB serial emulation.

Sample Compatibility & Compliance

The XW-50B accommodates a broad spectrum of common laboratory vessels—including polypropylene and glass centrifuge tubes (5–50 mL), PCR strip tubes, and microcentrifuge tubes—without requiring adapter plates. Its 4 mm orbital amplitude ensures efficient mixing of viscous solutions (up to 10,000 mPa·s) while minimizing splashing or cross-contamination risk. The device meets IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments and conforms to electromagnetic compatibility (EMC) requirements per EN 61326-1:2013. While not certified for sterile or cleanroom use, its smooth, non-porous surfaces support routine disinfection with 70% ethanol or sodium hypochlorite solutions—facilitating compliance with CLSI GP26-A4 and ISO 15195:2018 recommendations for equipment cleaning validation.

Software & Data Management

Although the XW-50B operates as a standalone instrument, its programmable mode supports repeatable protocol execution essential for SOP adherence. Time and speed values are stored in non-volatile memory, preserving user-defined sequences across power cycles. For laboratories implementing electronic recordkeeping under FDA 21 CFR Part 11, the mixer can be interfaced with third-party data loggers or LIMS via TTL-level serial output (optional module). All parameter changes are timestamped and traceable when connected to compliant systems—enabling full audit trail generation for quality assurance reviews. Firmware updates (if released) are delivered via USB flash drive, ensuring version control and regulatory alignment without service engineer intervention.

Applications

• Biological sample preparation: Resuspension of bacterial pellets, yeast cultures, and mammalian cell monolayers prior to lysis or staining.
• Clinical diagnostics: Homogenization of serum/plasma samples for ELISA, RIA, and chemiluminescent immunoassays.
• Pharmaceutical QC: Uniform dispersion of excipients in suspension formulations and dissolution media conditioning.
• Environmental testing: Extraction of analytes from soil/water matrices using solvent-based protocols per EPA Method 3550C.
• Academic research: Rapid mixing of reagents in kinetic assays, titration setups, and calibration standard preparation where temporal consistency is critical.

FAQ

Is the XW-50B suitable for mixing viscous samples such as glycerol stocks or agarose solutions?
Yes—the brushless motor maintains torque stability up to 2800 rpm, enabling effective homogenization of solutions with viscosities up to 10,000 mPa·s when used with appropriate tube geometry and fill volume.
Can multiple XW-50B units be synchronized for parallel processing?
No native synchronization function exists; however, identical program parameters can be manually loaded across units, and external PLC or relay-based triggering can coordinate start times within ±0.5 s accuracy.
Does the device support temperature-controlled operation?
No—it is a room-temperature-only mixer. For temperature-sensitive protocols, integration with chilled aluminum blocks or external cold rooms is recommended per ISO/IEC 17025:2017 environmental monitoring guidelines.
What maintenance is required for long-term reliability?
None beyond periodic cleaning of the foam holders and surface wiping. The brushless DC motor requires no lubrication or brush replacement over its rated service life (>20,000 hours MTBF).
Are replacement foam holders available for non-standard tube sizes?
Yes—SCIENTZ offers custom-cut polyurethane holders upon request, subject to minimum order quantities and dimensional specifications aligned with ISO 8573-1 cleanliness class 8 tolerances.