XW-80A Vortex Mixer

Overview

The XW-80A Vortex Mixer is a compact, benchtop laboratory device engineered for rapid and reproducible mixing of small-volume liquid and powder samples in tubes, vials, flasks, and cuvettes. It operates on the principle of high-frequency orbital oscillation—generating controlled vortex motion through a horizontally reciprocating platform driven by a brushless DC motor. Unlike magnetic stirrers or overhead shakers, this instrument achieves homogeneous dispersion without introducing external contaminants, magnetic interference, or mechanical agitation components (e.g., stir bars or impellers). Its design prioritizes sterility preservation and operator safety, making it suitable for applications in clinical diagnostics, immunoassay preparation (e.g., RIA, ELISA), molecular biology sample homogenization, and pharmaceutical QC workflows where consistent, low-shear mixing is required.

Key Features

• Stable 2800 rpm operation with precise digital LED speed control (0–2800 rpm range), enabling optimization across viscosity and container type
• Reciprocating oscillation mechanism with 4.5 mm amplitude ensures vigorous yet uniform vortex formation—even for viscous or particulate-laden solutions
• Compact footprint (140 × 140 × 140 mm) and lightweight ABS plastic housing facilitate placement in biosafety cabinets, cold rooms, or crowded lab benches
• Continuous-mode operation supports extended mixing protocols; no thermal overload protection or duty-cycle limitations under standard ambient conditions
• No moving parts contacting samples—eliminates risk of cross-contamination, metal leaching, or magnetic field interference during sensitive assays
• Low power consumption (<15 W) and silent operation align with ISO 14001-compliant laboratory sustainability practices

Sample Compatibility & Compliance

The XW-80A accommodates standard 0.5–50 mL containers including microcentrifuge tubes (1.5/2.0 mL), culture tubes, glass vials, Erlenmeyer flasks (up to 125 mL), and separatory funnels. Its platform geometry supports simultaneous mixing of multiple tubes without imbalance-induced vibration. While not certified to IEC 61010-1 for Class II medical devices, the unit complies with general electrical safety requirements for laboratory equipment used in non-invasive analytical procedures. It meets material biocompatibility expectations per USP cytotoxicity screening when operated within specified environmental parameters (10–40°C, <80% RH). No regulatory submission data (e.g., FDA 510(k), CE-IVD) is associated with this model; users deploying it in GLP/GMP environments must validate performance per SOPs aligned with ISO/IEC 17025 clause 5.5.2.

Software & Data Management

This analog-digital hybrid mixer does not incorporate embedded firmware, network connectivity, or data logging capabilities. Speed setting and operational status are conveyed solely via front-panel LED display. As such, it requires manual recording of mixing parameters in laboratory notebooks or LIMS-integrated electronic records. For audit-trail compliance in regulated settings (e.g., FDA 21 CFR Part 11), users must implement procedural controls—including documented calibration checks against traceable tachometer standards at least annually—and maintain logs of maintenance, verification, and usage history.

Applications

• Reconstitution of lyophilized reagents and antibiotics (e.g., erythromycin staining solutions)
• Homogenization of cell suspensions prior to centrifugation or flow cytometry analysis
• Emulsification of immunoassay standards and conjugate dilutions
• Pre-analytical mixing of blood serum/plasma samples before ELISA or PCR setup
• Routine vortexing of buffer stocks, enzyme solutions, and DNA ligation mixtures
• Supporting ASTM D4097 (Standard Practice for Mixing Liquid Samples) and ISO 5725-2 (Accuracy of Measurement Methods) validation protocols

FAQ

What is the maximum tube size compatible with the XW-80A platform?
The unit supports containers up to 125 mL in volume, provided they maintain stable center-of-gravity positioning on the 140 mm × 140 mm platform.
Can the XW-80A be used inside a CO₂ incubator or refrigerated chamber?
Yes—provided ambient temperature remains between 10°C and 40°C and relative humidity stays below 80%. Condensation must be prevented from contacting the base housing.
Is speed calibration traceable to national standards?
Users should verify rotational speed annually using an NIST-traceable handheld tachometer; factory calibration certificates are not supplied with this model.
Does the mixer generate electromagnetic interference (EMI) that could affect nearby analytical instruments?
No measurable EMI emissions were observed during third-party testing per CISPR 11 Group 1, Class B limits—making it safe for use adjacent to spectrophotometers, pipetting robots, or microplate readers.
How often does the oscillation mechanism require lubrication or servicing?
The sealed brushless motor and cam-driven reciprocating assembly are maintenance-free for ≥5 years under typical academic or clinical lab usage (≤4 hrs/day, 5 days/week).