DLAB MX-RL-Pro LCD-Controlled Long-Axis Rotational Mixer

Overview

The DLAB MX-RL-Pro is a precision-engineered long-axis rotational mixer designed for gentle, consistent, and contamination-free sample homogenization in demanding laboratory environments. Unlike vortex or orbital shakers, the MX-RL-Pro employs controlled continuous rotation around a horizontal axis—generating laminar, low-shear motion ideal for sediment resuspension, cell culture maintenance, antibody dilution, and reagent equilibration without foaming or bubble formation. Its brushless DC motor ensures stable speed output across the full 10–70 rpm range, with minimal thermal drift and zero maintenance requirements over extended operation cycles. The instrument’s compact footprint and IP21-rated ABS housing enable safe deployment inside refrigerated chambers (4 °C), CO₂ incubators (37 °C, 5% CO₂), and humidity-controlled storage cabinets—addressing critical workflow needs in molecular biology, clinical diagnostics, and biopharmaceutical QC labs where temperature-sensitive samples must remain undisturbed during mixing.

Key Features

• Dual-function LCD display showing real-time rotational speed (rpm) and remaining timer duration (min:sec), enabling precise protocol adherence without manual observation.
• Wide-speed adjustability (10–70 rpm) with fine-grained control—optimized for both viscous biological suspensions (e.g., whole blood, agarose gels) and low-viscosity buffers requiring slow, uniform agitation.
• Brushless DC motor architecture delivering high torque at low speeds, silent operation (50,000-hour service life—eliminating carbon brush wear and electrical noise interference in sensitive instrumentation zones.
• Modular long-axis platform compatible with standardized accessory kits: adjustable clamps for 15 mL and 50 mL conical tubes, universal microcentrifuge rack adapters (0.2–2.0 mL), and custom-length shafts for multi-tiered incubator integration.
• Universal AC input (100–240 V, 50/60 Hz) with internal switching power supply—ensuring stable performance across global laboratory infrastructures without external voltage converters.

Sample Compatibility & Compliance

The MX-RL-Pro supports routine handling of sealed and capped containers including polypropylene conical tubes, glass vials, PCR strip tubes, and sterile tissue culture flasks (up to 250 mL). Its non-impact rotational mechanism avoids mechanical stress on fragile samples such as primary neurons, organoids, or protein complexes prone to denaturation under shear. The device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets RoHS Directive 2011/65/EU for hazardous substance restriction. While not classified as a medical device, its design aligns with GLP-relevant operational rigor—including traceable parameter setting, absence of firmware-updatable logic (reducing validation burden), and physical timer lockout to prevent accidental interruption during regulated assays.

Software & Data Management

The MX-RL-Pro operates as a standalone hardware controller with no embedded software, cloud connectivity, or data logging capability—intentionally minimizing cybersecurity exposure and regulatory validation scope. All operational parameters are set via front-panel membrane keys; settings persist through power cycling but do not generate electronic records. This architecture satisfies laboratories operating under FDA 21 CFR Part 11 Annex 11 requirements where “simple, non-configurable devices” are exempt from audit trail and electronic signature mandates—provided user procedures document timer/speed selection per SOP. For labs requiring documentation, optional external USB time-lapse cameras or programmable PLC interfaces may be integrated via auxiliary trigger outputs (available upon request).

Applications

• Resuspension of pelleted cells, precipitated DNA/RNA, or antibody-coated magnetic beads prior to downstream analysis (e.g., ELISA, flow cytometry, NGS library prep).
• Equilibration of cryopreserved samples during controlled-rate thawing in cold rooms or −20 °C freezers.
• Homogenization of high-viscosity reagents (e.g., glycerol stocks, methylcellulose-based semi-solid media) without introducing air bubbles that compromise colony isolation.
• Long-duration incubation support for microbiological assays (e.g., antibiotic time-kill curves) requiring uninterrupted agitation over 20+ hours.
• Pre-analytical preparation in clinical labs—mixing EDTA-anticoagulated whole blood prior to centrifugation, ensuring hematocrit stability per CLSI H20-A2 guidelines.

FAQ

Can the MX-RL-Pro be used inside a CO₂ incubator?

Yes—the unit is rated for continuous operation at 37 °C and 95% relative humidity, with ABS housing resistant to CO₂-induced polymer degradation. Ensure adequate airflow clearance (≥5 cm on all sides) to prevent localized heating.
Is speed calibration traceable to national standards?

DLAB provides factory calibration certificates (NIST-traceable tachometer verification) with each unit; recalibration intervals are recommended every 24 months or after 10,000 operating hours.
Does it support programmable multi-step protocols?

No—the MX-RL-Pro offers only single-stage timed or continuous operation. For sequential speed/timing profiles, consider the DLAB MX-FR series with RS-232 interface.
What is the maximum load capacity per clamp?

Each standard long-axis clamp supports up to 1.2 kg total mass (including tube, adapter, and sample); exceeding this may affect speed stability and bearing longevity.
Are replacement fuses or service manuals available?

Yes—DLAB supplies spare 250 V / 1 A slow-blow fuses (part #FUSE-MXRL) and downloadable service manuals (EN/ES/DE) via registered distributor portals.