DLAB MX-RD-Pro Rotary Mixer

Overview

The DLAB MX-RD-Pro Rotary Mixer is an engineered laboratory device designed for gentle, reproducible, and controllable sample homogenization through orbital rotary motion. Unlike vortex mixers or shakers, the MX-RD-Pro employs a precisely regulated tilting-axis rotation mechanism—where the platform rotates around a fixed pivot while simultaneously adjusting its inclination angle—to generate consistent, low-shear mixing dynamics ideal for sensitive biological and diagnostic applications. This principle ensures uniform suspension of particulates, efficient reagent resuspension, and prevention of sedimentation or phase separation in low-volume samples. Its operational envelope (10–70 rpm, 0–90° tilt) supports both slow, gravity-assisted mixing for fragile aggregates (e.g., antibody-antigen complexes) and higher-speed agitation for viscous or heterogeneous suspensions. The unit complies with IEC 61010-1 safety standards for laboratory electrical equipment and is constructed to meet ISO 9001-certified manufacturing protocols.

Key Features

• Programmable dual-parameter LCD interface displaying real-time rotational speed (rpm) and elapsed or remaining timer duration (min)
• Continuously adjustable tilt angle from 0° (horizontal rotation) to 90° (vertical end-over-end inversion), enabling optimization for diverse sample rheologies and container geometries
• DC motor drive delivering stable torque output across the full speed range with minimal thermal drift and acoustic noise (<45 dB(A) at 1 m)
• Two operational modes: precise timed operation (1–1199 minutes) or uninterrupted continuous run—both selectable via front-panel controls
• Modular clamping system supporting interchangeable circular platforms compatible with standard microcentrifuge tubes (1.5 mL, 2.0 mL), conical tubes (15 mL, 50 mL), and PCR strip carriers
• Robust aluminum alloy housing with non-slip silicone feet and IP21-rated enclosure ensuring protection against vertically falling solid objects and limited ingress of moisture during routine lab use

Sample Compatibility & Compliance

The MX-RD-Pro accommodates common single-use plastic consumables used in clinical diagnostics and life science workflows—including polypropylene and polycarbonate tubes conforming to ASTM D4101 and ISO 10993-5 biocompatibility guidelines. It is routinely deployed in CLIA-waived and CAP-accredited laboratories for pre-analytical processing steps such as whole blood anticoagulation maintenance, latex agglutination assay preparation, and immunoprecipitation wash cycles. While not classified as a medical device under FDA 21 CFR Part 820, the instrument meets essential requirements of EN 61326-1 (EMC for laboratory equipment) and carries CE marking for the European Economic Area. Its design facilitates integration into GLP-compliant environments where audit trails for equipment usage are maintained manually or via external logbooks.

Software & Data Management

The MX-RD-Pro operates as a standalone hardware platform without embedded firmware-based data logging or network connectivity. All parameter settings—including speed, tilt angle, and timer values—are retained only during active power supply and reset upon shutdown. For laboratories requiring traceability, users may document operating conditions using standardized electronic lab notebooks (ELNs) compliant with 21 CFR Part 11, or integrate the mixer into validated workflows where parameter verification is performed prior to each batch run. Optional accessories include calibrated tachometers for periodic speed verification and third-party environmental monitoring systems that log ambient temperature and humidity alongside equipment runtime.

Applications

• Maintenance of anticoagulated whole blood specimens to prevent fibrin clot formation during transport or short-term storage
• Resuspension of dried reagents in lateral flow immunoassay development and quality control testing
• Homogenization of antibody-coated latex particles in rapid diagnostic test manufacturing
• Equilibration of protein A/G magnetic beads during chromatin immunoprecipitation (ChIP) sample prep
• Uniform dispersion of nanoparticles in colloidal stability studies prior to DLS or UV-Vis analysis
• Pre-analytical mixing of serum/plasma aliquots before ELISA or multiplex immunoassay loading

FAQ

Is the MX-RD-Pro suitable for mixing high-viscosity samples such as glycerol-based storage buffers?
Yes—when operated at lower speeds (10–30 rpm) with a 45–90° tilt angle, the unit provides sufficient mechanical energy to overcome yield stress without inducing foaming or air entrapment.
Can multiple tube formats be mixed simultaneously on one platform?
Yes—the circular disc clamps accept mixed tube sizes (e.g., 1.5 mL and 15 mL) provided they are symmetrically distributed to maintain rotational balance and minimize vibration.
Does the device support protocol recall or preset method storage?
No—this model does not feature memory registers; all parameters must be manually re-entered for each use.
What maintenance is required for long-term reliability?
Routine cleaning of the platform surface with 70% ethanol and periodic inspection of clamp retention screws are recommended; no lubrication or motor servicing is required under normal operating conditions.
Is the MX-RD-Pro compatible with cold room or refrigerated incubator environments?
It is rated for operation between 5–40 °C; however, condensation risk below 10 °C may compromise electrical integrity—use within climate-controlled spaces only.