MKN TDL-50A Digital Display Benchtop Centrifuge
| Brand | MKN |
|---|---|
| Model | TDL-50A |
| Max Speed | 4000 rpm (stepless digital speed control) |
| Relative Centrifugal Force (RCF) | 2325 × g |
| Capacity | 6 × 50 mL (stainless steel rotor buckets) |
| Timer Range | 0–60 min |
| Noise Level | ≤60 dB(A) |
| Power Supply | AC 220 V, 50 Hz, 2 A |
| Dimensions (W×D×H) | Approx. 300 × 320 × 280 mm |
| Weight | ~22 kg |
| Rotor Material | Anodized aluminum alloy |
| Compliance | Designed per IEC 61010-1:2010 for laboratory electrical safety |
Overview
The MKN TDL-50A Digital Display Benchtop Centrifuge is a precision-engineered, general-purpose centrifuge designed for routine separation tasks in clinical, biochemical, and chemical laboratories. It operates on the principle of sedimentation under controlled rotational force—utilizing angular acceleration to separate suspended particles or immiscible phases based on differences in density, size, and shape. Equipped with a brushless DC motor and microprocessor-based speed regulation, the instrument delivers stable, reproducible rotational performance across its full 0–4000 rpm range. The digitally displayed speed readout ensures real-time verification of operational parameters, supporting method traceability and procedural consistency. Its compact footprint, low thermal output, and quiet operation (<60 dB[A]) make it suitable for shared lab environments where space, noise, and ambient temperature stability are critical constraints.
Key Features
- Stepless digital speed control with LED display for accurate, repeatable RPM setting and monitoring
- Automatic rotor imbalance compensation system enhances operational safety and extends bearing service life
- Anodized aluminum alloy rotor assembly—lightweight, corrosion-resistant, and engineered for mechanical integrity at maximum rated speed
- Stainless steel centrifuge buckets (6 × 50 mL capacity) with secure snap-fit lids and balanced weight distribution
- Precise mechanical timer (0–60 minutes) with auto-stop function; no battery dependency or software drift
- Thermally optimized motor housing and airflow design minimize heat accumulation during extended runs
- IEC 61010-1-compliant electrical architecture including overcurrent protection, lid interlock switch, and emergency brake circuit
Sample Compatibility & Compliance
The TDL-50A accommodates standard conical-bottom polypropylene or glass centrifuge tubes (up to 50 mL), as well as serum separation tubes (SSTs), EDTA plasma tubes, and urine sediment containers. It supports common clinical workflows including serum/plasma isolation, cellular pellet recovery, precipitate concentration, and immunoassay sample preparation. While not certified for biosafety level (BSL)-2+ containment or aerosol-tight operation, the unit meets fundamental safety requirements for non-hazardous biological and chemical samples under ISO/IEC 17025-aligned laboratory practices. Its construction and control logic align with GLP-relevant documentation expectations for routine QC/QA centrifugation steps—particularly when paired with manual log entries or external electronic lab notebook (ELN) integration.
Software & Data Management
The TDL-50A is a standalone electromechanical instrument with no embedded firmware, network interface, or proprietary software. All operational parameters—including set speed, elapsed time, and run completion—are indicated via front-panel LED digits and mechanical feedback. This architecture eliminates cybersecurity vulnerabilities, software validation overhead, and compatibility dependencies. For regulated environments requiring audit trails, users may document run conditions manually or integrate the device into broader SOP-driven workflows using external timestamped logs compliant with FDA 21 CFR Part 11 (when paired with validated ELN or LIMS systems). No calibration certificate is supplied by default; however, periodic verification of speed accuracy (±2% tolerance) and timer fidelity (±1% deviation) is recommended per internal quality protocols.
Applications
- Clinical diagnostics: Separation of serum from whole blood (e.g., for ELISA, chemistry panels, coagulation assays)
- Research laboratories: Pellet recovery of mammalian cells, yeast, or bacteria post-culture; clarification of cell lysates
- Pharmaceutical QC: Residual solvent removal, excipient suspension homogenization, and filtration aid recovery
- Environmental testing: Solid-phase extraction of particulates from aqueous effluent or soil leachates
- Educational labs: Demonstration of sedimentation kinetics, density gradient principles, and rotor dynamics fundamentals
FAQ
What is the maximum relative centrifugal force (RCF) achievable with this model?
The TDL-50A generates up to 2325 × g at 4000 rpm with the standard 50 mL bucket rotor—calculated at maximum radius (142 mm) per ISO 21501-4 conventions.
Is the rotor autoclavable?
No—the anodized aluminum rotor is not autoclave-rated. Cleaning is performed with 70% ethanol or mild detergent; prolonged exposure to strong oxidizers or alkaline solutions is not advised.
Can this centrifuge be used for blood banking applications?
It is suitable for routine serum/plasma preparation but lacks features required for blood component processing (e.g., refrigeration, swing-out rotor certification per AABB standards).
Does the unit include a calibration certificate?
Not supplied ex-factory. Users should perform initial verification of speed and timer accuracy using NIST-traceable tachometers and stopwatches per their internal equipment qualification SOPs.
What maintenance is required to sustain long-term performance?
Biannual inspection of rotor threads, lid latch mechanism, and motor ventilation grilles is recommended. Bearing lubrication is sealed-for-life; no user-serviceable parts exist within the drive assembly.
