TAITEC SR-2ES High-Capacity Nucleic Acid Sample Tube Mixer

Overview

The TAITEC SR-2ES is a high-throughput, precision-engineered reciprocating tube mixer designed specifically for nucleic acid and viral transport medium (VTM) sample preparation in clinical diagnostics, public health laboratories, and biobanking workflows. Unlike conventional orbital shakers or vortex mixers, the SR-2ES employs TAITEC’s proprietary SS-type silent oscillation mechanism — a frictionless, cam-driven linear reciprocating motion that eliminates rolling bearings, sliding rails, or gear-driven transmission. This architecture ensures mechanical stability during extended operation while suppressing operational noise to ≤45 dB(A), comparable to ambient sound levels in GLP-compliant laboratory environments. The instrument supports both vertical and horizontal oscillation modes, enabling optimal homogenization of viscous or sediment-prone samples without foaming or cross-contamination risk. Its robust cast-aluminum frame and anti-slip rubber feet prevent displacement even under full load (up to 7.5 kg), making it suitable for unattended overnight mixing protocols in ISO 15189-accredited testing labs.

Key Features

• SS Silent Oscillation Mechanism: Patented cam-and-linkage system delivers smooth, repeatable 40 mm amplitude motion with no mechanical wear, zero lubrication requirement, and long-term velocity stability across the full 50–300 rpm range.
• High-Capacity Tube Compatibility: Accommodates up to 192 individual tubes simultaneously — including standard 10 mL, 15 mL, and 50 mL conical tubes; 20-, 30-, 48-, and 96-well racks; and pooled configurations (e.g., 5-in-1, 10-in-1, 20-in-1 swab pools) via interchangeable universal adapters.
• Three Programmable Timing Modes: Continuous run, interval oscillation (e.g., 30 min ON / 5 min OFF cycles), and delay-start scheduling — all configurable via intuitive digital keypad with real-time elapsed/remaining time display.
• Ergonomic Universal Clamp System: Ratchet-based adjustable clamps enable secure fixation of diverse vessel geometries — spherical, dual-chamber, pear-shaped, and cylindrical containers — without tools; designed for one-handed operation by personnel wearing PPE gloves.
• Digital Precision Control: Dual LED displays show set speed (rpm) and timer status (countdown/count-up); built-in buzzer alerts at program completion; cumulative runtime tracking available even when timer is inactive.

Sample Compatibility & Compliance

The SR-2ES is validated for use with CE-marked and FDA-cleared collection devices, including COPAN ESwab™, BD Urology Swab, and various ISO 15197-compliant viral transport media tubes. Its vibration profile meets IEC 61000-6-2 (immunity) and IEC 61000-6-3 (emission) standards. While not a regulated medical device itself, the mixer supports compliance with CLIA, CAP, and ISO/IEC 17025 requirements for pre-analytical sample homogenization consistency. Its low-noise operation facilitates integration into shared diagnostic lab spaces where acoustic interference must be minimized per WHO Laboratory Biosafety Manual (4th ed.) Annex C guidelines.

Software & Data Management

The SR-2ES operates as a standalone hardware platform with no embedded firmware or network connectivity. All parameter settings are retained in non-volatile memory after power cycling. For auditability in regulated environments, users may document mixing protocols manually or integrate timing logs into LIMS via external timestamped video recording or barcode-scanned workflow triggers. The device supports 21 CFR Part 11–compliant data integrity when used in conjunction with validated electronic lab notebooks (ELNs) that capture operator ID, lot numbers of consumables, and start/stop timestamps.

Applications

• Homogenization of nasopharyngeal/oropharyngeal swab specimens in viral transport medium prior to RNA extraction.
• Uniform suspension of blood-derived exosomes or circulating tumor DNA (ctDNA) in EDTA tubes before centrifugation.
• Reconstitution of lyophilized PCR master mixes in multi-tube arrays without bubble entrapment.
• Pre-analytical mixing of pooled samples for high-throughput SARS-CoV-2, influenza, or RSV screening assays.
• Standardized agitation of calibration standards and QC materials across molecular pathology QA/QC programs.

FAQ

Is the SR-2ES compatible with ISO-certified biosafety cabinets?
Yes — its compact footprint (410 × 585 mm) and low electromagnetic emissions allow safe placement inside Class II A2 cabinets when operated at ≤250 rpm.
Can the oscillation direction be changed during operation?
No — vertical/horizontal orientation must be selected mechanically using the rear panel toggle switch prior to startup; mode switching requires power-off.
Does the device support GLP audit trails?
It does not generate native electronic audit logs, but its deterministic mechanical behavior and stable timing accuracy enable retrospective verification via video log correlation and procedural SOP adherence.
What maintenance is required?
None beyond periodic cleaning of the platform surface and clamp jaws with 70% ethanol; the SS mechanism contains no serviceable parts and carries a 3-year limited warranty against manufacturing defects.
Is calibration required?
No formal calibration is specified by TAITEC; however, users may verify rotational speed accuracy annually using an ISO 17025-accredited tachometer as part of equipment qualification (IQ/OQ).