Hanbon DAC1100 Dynamic Axial Compression Column

Overview

The Hanbon DAC1100 Dynamic Axial Compression Column is an engineered solution for high-efficiency, reproducible preparative liquid chromatography. Unlike conventional packed columns, the DAC1100 employs a pneumatically or hydraulically actuated dynamic axial compression mechanism that maintains constant bed pressure throughout the entire separation cycle — from initial slurry packing, through equilibration, loading, elution, and regeneration, to final column decompression and unpacking. This principle ensures mechanical stability of the stationary phase bed under variable flow and backpressure conditions, mitigating common failure modes such as channeling, bed settling, and radial heterogeneity. The system operates on the fundamental principle of axial force equilibrium: a movable piston applies uniform compressive load along the column axis, counteracting the hydrodynamic expansion forces generated during solvent flow. As a result, column efficiency (N), resolution (Rs), and peak symmetry remain consistent across scale-up — from laboratory to pilot and production-scale purification.

Key Features

• Integrated column and packing station functionality: eliminates need for external packing hardware or manual tapping procedures
• Self-contained compression/decompression cycle controlled via programmable logic controller (PLC) with pressure feedback loop
• Patented distributor design ensuring uniform flow distribution across full cross-sectional area — critical for linear scale-up fidelity
• Stainless-steel construction (316L grade) with electropolished internal surfaces meeting ASME BPE-2021 surface finish standards
• Modular cylinder design supporting rapid diameter interchangeability (50 mm to 2000 mm I.D.) without structural revalidation
• Pressure-rated up to 100 bar (1450 psi), compatible with common preparative solvents including methanol, acetonitrile, IPA, and aqueous buffers
• Real-time monitoring of piston position, applied force, and column backpressure via analog 4–20 mA outputs

Sample Compatibility & Compliance

The DAC1100 accommodates a broad range of stationary phases, including silica-based C18, phenyl-hexyl, and HILIC materials; polymeric resins (e.g., polystyrene-divinylbenzene); and specialty media such as chiral selectors and ion-exchange matrices. Its robust mechanical architecture supports both low-viscosity mobile phases and high-solids-content slurries (up to 40% w/v). All wetted components comply with USP Class VI biocompatibility testing. The system is designed to meet regulatory expectations for chromatographic purification in pharmaceutical development and manufacturing, including adherence to ICH Q5A (viral clearance validation), ISO 9001:2015 quality management, and alignment with FDA Guidance for Industry: Chromatographic Purification of Peptide Drug Substances (2022). Full traceability of packing parameters (slurry concentration, compression force profile, dwell time) is retained per batch record requirements.

Software & Data Management

The DAC1100 interfaces with industry-standard chromatography data systems (CDS) via OPC UA or Modbus TCP protocols. Critical operational parameters — including compression force setpoint, actual piston displacement, real-time column pressure, and cycle timestamps — are logged with millisecond resolution. Audit trails conform to FDA 21 CFR Part 11 requirements, featuring electronic signatures, user access controls, and immutable event logs. Optional Hanbon ControlSuite software provides automated method templates for common purification workflows (e.g., gradient elution with stepwise compression hold), remote diagnostics, and predictive maintenance alerts based on actuator duty cycles and seal wear metrics.

Applications

• Purification of monoclonal antibodies (mAbs) and antibody-drug conjugates (ADCs) at clinical and commercial scale
• Isolation of synthetic peptides and oligonucleotides requiring high-resolution separation under non-denaturing conditions
• Chiral resolution of small-molecule APIs where enantiomeric purity >99.9% is mandated
• Downstream processing of recombinant proteins expressed in E. coli, yeast, or mammalian cell culture
• Method development and transfer between analytical, semi-preparative, and production-scale DAC systems
• Regulatory filing support: generation of column performance qualification (CPQ) data per USP and EP 2.2.46

FAQ

What distinguishes dynamic axial compression from static compression or radial compression systems?

Dynamic axial compression actively maintains bed integrity during operation via real-time force compensation, whereas static systems rely on one-time mechanical locking and radial designs introduce non-uniform stress distribution across the bed cross-section.
Can the DAC1100 be integrated into existing preparative HPLC or SFC systems?

Yes — it features standardized flange connections (DIN 28178 or ASME B16.5 Class 300), compatible with common high-pressure tubing, fittings, and detector interfaces.
How is column cleaning-in-place (CIP) performed on the DAC1100?

The system supports full CIP through dedicated solvent inlet/outlet ports; validated protocols include NaOH washes for protein removal and ethanol/water flushes for organic residue clearance.
Does Hanbon provide column packing validation documentation?

Yes — each unit ships with a Certificate of Conformance, test report summarizing hydraulic leak testing and force calibration, and optional IQ/OQ documentation packages aligned with GAMP5 guidelines.