SEEPURE series Dynamic Axial Compression Column (DAC)

Dynamic Axial Compression, or DAC for short, is recognized as a technique that delivers good separation results in column chromatography at various scales and is the preferred packing technique in industrial preparative chromatography today. When users need to pack a preparative column with an inner diameter of more than 100 mm, the traditional axial compression techniques, such as the “floating piston technique”, are not able to meet the high separation requirements. In this case, dynamic axial compression shall be used. Dynamic axial compression columns use hydraulic jacks to drive the column sealing piston to maintain a constant column bed pressure. It is safe and easy to operate and is unlikely to cause leakage and contamination.

• ● DAC technology ensures faster and smoother piston lifting, good pressure stabilization and constant dynamic pressure inside the column bed, ensuring a longer and more stable column efficiency.
  ● High-pressure spring energy storage sealing ring and PTFE-coated O-rings ensure zero leakage of the piston.
  ● Unique liquid distribution system design ensures perfect uniformity of column efficiency and peak symmetry for better separation effect
  ● The C-clamp connection between the bottom end cap and the column tube ensures column disassembly with less time and effort.
  ● Pneumatic pressurized control meets the explosion-proof requirements of special working conditions