Dynamic Axial Compression Column System (DAC)
Product Features
· The column performance is excellent due to the application of uniquely designed distribution and collection plates developed with special processing technology.
· Standard prep HPLC columns may develop voids over long-term use. However, the DAC column continuously compresses the packing layer with a piston head at a constant pressure, preventing voids from forming even after prolonged use, thereby extending the column's lifespan.
· The packing can be automated using a slurry automatic feeding device.
· Both compressed air and electricity can be used as power sources for the cylinder. Using a pneumatic pump allows for sufficient pressure during packing, maintaining the column's performance over an extended period. Additionally, if the noise from the pneumatic pump is bothersome, an explosion-proof electric drive motor can be utilized.
· When packing a DAC column with a diameter of 800mm or more using a pneumatic pump, there are limitations on flow and pressure, which can result in longer packing times. In this case, a hydraulic station can be used for rapid column packing. After packing, a pneumatic pump is used to maintain the pressure.


Product Specifications
Column tube | Inner diameter | 50mm | 100mm | 150mm | 200mm | 300mm | 400mm | 600mm | 800mm | 1000mm |
Length (can be (customized) | 650mm | 800mm | 1200mm | |||||||
Max. bed height | 300mm | 350mm | 600mm | |||||||
Min. bed height | 100mm | |||||||||
Inner wall of processing | Honing, polishing | |||||||||
Inner wall surface rounghness | Ra ≤ 0.4㎛ | |||||||||
Max. pressure | 10 Mpa | |||||||||
Filter | Mesh size | 2㎛ | ||||||||
Material | 316L sintered mesh plate | |||||||||
Seals | Material | PTFE | ||||||||
Structure | Double distribution | |||||||||
Distributor | Material | 316 L | ||||||||
Distribution mode | Double distribution | |||||||||
Power unit | Hydraulic station (pneumatic) | Air consumption : max. 600 NL/min | ||||||||
Hydraulic station (electric) | AC 3ø 380V, 1.5㎾ | |||||||||
Control unit | Pressure relief valve | Having overpressure protection | ||||||||
Switching valve | Switching cylinder direction (up, down, hold) | |||||||||
Pressure regulator valve | Adjust the pump output prerssure | |||||||||
Gauge | Working air pressure, oil pressure | |||||||||
Push button | Emergency | |||||||||
Dimension | Width (mm) | 600 | 730 | 790 | 800 | 880 | 1120 | 1400 | 1900 | 2650 |
Depth (mm) | 600 | 730 | 790 | 800 | 880 | 1120 | 1400 | 1900 | 2650 | |
Height (mm) | 2360 | 2360 | 2360 | 2360 | 2900 | 2900 | 2980 | 4280 | 4800 | |
Connection | Inlet | 1/16" | 1/8" | 1/8" | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1-1/2" |
Outlet | 1/16" | 1/8" | 1/8" | 1/4" | 3/8" | 1/2" | 3/4" | 1" | 1-1/2" | |
Air | 10㎜ tube quick coupling |
※ All wetted materials : 316L, PTFE, Peek