MKN KA-1000 Benchtop Low-Speed Centrifuge

Overview

The MKN KA-1000 Benchtop Low-Speed Centrifuge is an engineered solution for routine sedimentation and phase separation tasks in academic, clinical, and industrial laboratories. Designed around the principle of centrifugal force generation via controlled rotational acceleration, this instrument separates components of heterogeneous liquid mixtures—such as whole blood, cell suspensions, precipitated proteins, or environmental aqueous extracts—based on differences in particle density, size, and shape. Operating within a defined speed range (0–4000 rpm), it delivers a maximum relative centrifugal force (RCF) of 2325 × g, sufficient for pelleting mammalian cells, isolating platelet-rich plasma (PRP), clarifying crude enzyme extracts, or preparing supernatants for downstream analysis. Its compact footprint, low acoustic signature (≤60 dB[A]), and energy-efficient 135 W brushless motor make it suitable for shared lab spaces, biosafety cabinets, and QA/QC environments where continuous, reliable operation is required without thermal or vibrational interference.

Key Features

• Robust anodized aluminum rotor with 12-position capacity for 15 mL or 20 mL conical tubes—compatible with standard polypropylene and glass centrifuge vessels.
• Mechanically interlocked lid with automatic power cutoff ensures operator safety during operation and prevents accidental opening under load.
• Dual-fuse protection system and real-time imbalance detection circuit provide redundant safeguards against mechanical failure or improper tube loading.
• Analog tachometer with calibrated pointer scale enables direct visual monitoring of rotational speed; mechanical timer dial offers intuitive 0–60 minute setting without digital interface dependency.
• Brushless centrifuge-specific motor delivers high torque at low speeds, minimizing heat generation and extending service life compared to universal induction motors.
• High-strength polymer housing with vibration-damping base reduces transmission of operational resonance to adjacent instrumentation.

Sample Compatibility & Compliance

The KA-1000 supports standard laboratory sample formats including 15 mL and 20 mL conical centrifuge tubes (e.g., Falcon®, Sarstedt®), microcentrifuge tube racks (when used with compatible adapters), and certain flat-bottom collection vials. It is routinely deployed in workflows compliant with ISO 15189 (medical laboratories), CLSI H26-A3 (blood specimen processing), and USP (dissolution testing sample preparation). While not certified for BSL-2/3 containment, its sealed rotor chamber and absence of aerosol-generating design elements support safe handling of non-infectious biological fluids under GLP conditions. All electrical components meet IEC 61010-1 safety standards for laboratory equipment.

Software & Data Management

As a mechanically controlled, analog-operated centrifuge, the KA-1000 does not incorporate embedded firmware, touchscreen interfaces, or data logging capabilities. This architecture eliminates software validation requirements under FDA 21 CFR Part 11 and simplifies audit readiness in regulated environments where procedural traceability relies on manual logbooks and SOP-driven documentation. Users record run parameters—including speed, time, rotor identification, and sample configuration—in standardized laboratory notebooks or LIMS-integrated paper forms. The absence of network connectivity or firmware updates further reduces cybersecurity exposure and long-term maintenance overhead.

Applications

• Pre-analytical processing of whole blood into serum or plasma fractions for clinical chemistry and immunoassay platforms.
• Sedimentation of cultured adherent and suspension cells prior to lysis or cryopreservation.
• Clarification of bacterial lysates and fungal culture supernatants in protein purification pipelines.
• Separation of lipid emulsions, food homogenates, and wastewater suspended solids for gravimetric or spectrophotometric quantification.
• Preparative isolation of extracellular vesicles and lipoprotein subfractions using differential low-speed protocols (e.g., 2000–4000 rpm for 10–30 min).
• Stabilization and concentration of colloidal nanoparticles prior to dynamic light scattering (DLS) or TEM grid preparation.

FAQ

What is the maximum RCF achievable with the KA-1000 centrifuge?

The unit achieves a maximum relative centrifugal force of 2325 × g at 4000 rpm with the standard 12-place aluminum rotor loaded with 15 mL tubes.
Is the rotor autoclavable?

Yes—the anodized aluminum rotor is compatible with standard steam autoclaving cycles (121 °C, 15 psi, 20 min); however, repeated sterilization may affect surface finish and should be performed only when microbiological sterility is required.
Can I use this centrifuge for blood bank applications?

It meets core functional requirements for PRP and buffy coat preparation per AABB guidelines, though final validation must be conducted per institutional SOPs and local regulatory interpretation.
Does the KA-1000 require calibration certification?

While not mandated for analog instruments, periodic verification of speed accuracy (±50 rpm tolerance) and timer fidelity (±30 s over 60 min) is recommended annually using NIST-traceable tachometers and stopwatches.
What maintenance intervals are advised?

Visual inspection of rotor integrity, lid interlock function, and fuse continuity should occur before each use; full mechanical service—including bearing assessment and motor performance check—is recommended every 24 months or after 10,000 operating cycles.