Miltenyi autoMACS® Pro Cell Separator
| Brand | Miltenyi Biotec |
|---|---|
| Origin | Germany |
| Model | autoMACS® Pro |
| Automation Level | Fully Automatic |
| Sample Throughput | Up to 6 × 5 mL, 5 × 15 mL, or 3 × 50 mL tubes per run |
| Max Total Cells per Sample | 4 × 10⁹ |
| Max Magnetically Labeled Cells per Sample | 2 × 10⁸ |
| Sample Volume Range | 0.2–50 mL |
| Compatible Starting Materials | Whole blood, PBMCs, bone marrow, dissociated tissues, tumor digests, cultured cells (primary & cell lines) |
| Species Compatibility | Human, mouse, rat, non-human primates, and others via indirect MicroBeads |
| Column Types | Reusable autoMACS Columns (single or dual configuration) |
| Separation Modes | Positive selection, untouched isolation, depletion |
| Regulatory Compliance | Designed for GLP-compliant workflows |
| Dimensions (w × d × h) | 605 × 343 × 392.5–454 mm (with MiniSampler: 605 × 455 × 392.5–454 mm) |
| Cooling System | Integrated Chill Racks (2–8 °C sample/ reagent storage) |
Overview
The Miltenyi autoMACS® Pro Cell Separator is a fully automated, benchtop magnetic-activated cell sorting (MACS®) system engineered for high-fidelity, reproducible isolation of target cell populations from complex biological samples. It operates on the principle of high-gradient magnetic separation: cells labeled with superparamagnetic MACS® MicroBeads are retained within a column matrix under the influence of a strong permanent magnet, while unlabeled cells flow through. Upon removal from the magnetic field, magnetically labeled cells are eluted in a highly viable, functionally intact state. This technology enables both positive selection—enriching target cells—and untouched isolation—depleting unwanted cells while leaving the target population unmodified. The autoMACS® Pro delivers standardized, operator-independent results critical for translational research, clinical assay development, and GMP-aligned workflows. Its architecture integrates real-time sensor monitoring (buffer level, column status, temperature), closed-fluid-path handling, and pre-programmed protocols validated across >3,000 peer-reviewed publications—ensuring consistency across laboratories and longitudinal studies.
Key Features
- Fully automated workflow: Load samples and reagents, select protocol, and initiate unattended processing—including bead labeling, column loading, washing, magnetic retention, and elution.
- Reconfigurable column architecture: Supports single or dual autoMACS® Columns for flexible trade-offs between purity (dual-column depletion + selection) and recovery (single-column positive selection).
- Closed-system safety: Reusable columns integrate into a sealed fluidic path, minimizing aerosol generation and operator exposure—essential for biosafety level 2 (BSL-2) and hazardous sample handling.
- Temperature-controlled environment: Integrated Chill Racks maintain samples and reagents at 2–8 °C throughout processing, preserving cell viability and surface epitope integrity.
- Real-time instrument diagnostics: Onboard sensors continuously monitor buffer volume, column pressure, magnetic field engagement, and thermal stability—triggering alerts for protocol deviation or system fault.
- Extensive reagent compatibility: Validated with >400 MACS® MicroBeads and kits—including StraightFrom® whole-blood beads, MACSprep™ enrichment kits, RElease® elution systems, and indirect labeling strategies (e.g., biotin-streptavidin).
Sample Compatibility & Compliance
The autoMACS® Pro accepts diverse primary and cultured specimens without preprocessing: whole blood (human, mouse, rat, NHP), bone marrow aspirates, Ficoll-isolated PBMCs, leukapheresis products, LRSC, buffy coat, and enzymatically or mechanically dissociated solid tissues (e.g., tumor, spleen, lung). Its validated protocols align with international standards for immunophenotyping and functional assay prep—including ISO 13485 for IVD device manufacturing and FDA 21 CFR Part 11 when deployed with electronic signature-enabled software modules. The system supports GLP/GMP documentation requirements via timestamped run logs, reagent lot tracking (via optional barcode scanning), and user-access-level audit trails. All column-based separations comply with EU Directive 93/42/EEC (MDD) and IEC 61010-1 for laboratory equipment safety.
Software & Data Management
Controlled via an intuitive touchscreen interface, the autoMACS® Pro runs factory-validated, parameter-locked protocols—each optimized for specific bead types, starting materials, and separation goals (e.g., CD4⁺ T cell isolation from whole blood using StraightFrom® beads). Software versioning ensures traceability; protocol updates are delivered via secure firmware patches. For regulated environments, optional integration with Miltenyi’s MACSQuantify™ Suite enables export of raw separation data (cell counts, flow-through volumes, elution efficiency) in CSV or XML formats compatible with LIMS and ELN platforms. Audit trail functionality records user ID, timestamp, protocol name, reagent lot numbers, and system error codes—meeting ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) data integrity principles.
Applications
The autoMACS® Pro serves as a foundational tool in immuno-oncology, stem cell biology, and regenerative medicine pipelines. It routinely prepares high-purity, high-viability cell subsets for downstream applications including multicolor flow cytometry (e.g., T cell subset phenotyping), functional assays (CFSE proliferation, cytokine secretion), single-cell RNA sequencing library prep, adoptive cell therapy manufacturing (CAR-T, TIL expansion), and preclinical model development (e.g., humanized mouse engraftment). Its ability to isolate untouched B cells, naïve T cells, or dendritic cell subsets—without antibody-induced activation or Fc receptor cross-linking—makes it indispensable for studies requiring native receptor conformation and signaling competence.
FAQ
What separation modes does the autoMACS® Pro support?
It supports positive selection, negative depletion, and untouched isolation—using either direct MicroBead conjugates or indirect labeling strategies.
Can it process whole blood without density gradient centrifugation?
Yes—StraightFrom® MicroBeads enable direct isolation from whole blood or bone marrow, eliminating Ficoll steps and associated cell loss or activation.
Is column reuse permitted, and how is sterility ensured?
AutoMACS® Columns are designed for multiple uses (up to 50 cycles per column) following Miltenyi’s validated regeneration protocol; each run maintains a closed, sterile fluid path via disposable tubing sets and column caps.
How is data integrity maintained for regulatory submissions?
Through electronic signatures, time-stamped audit logs, reagent lot traceability, and exportable run reports compliant with 21 CFR Part 11 Annex 11 and ISO/IEC 17025 requirements.
What maintenance is required for long-term operational reliability?
Scheduled calibration of fluidic pressure sensors and magnetic field strength verification every 6 months; no routine magnet replacement is needed due to permanent neodymium-iron-boron core design.
