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ANALYTICAL SCIENCES > Purification-UPFP > DAC Columns > DAC 50

PAK ID50mm Dynamic Axial Compression Column

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DAC stands for dynamic axial compression. It combines the preparative column and packing system together. It is very simple to operate. The column can be used online when it is packed well. Don’t take the column down! Bed compression is maintained constant so that swelling will be prevented. Once particle shrinking takes place because of the solvent flow, the piston will automatically go down to let the bed maintain constant column pressure.
It can be packed with small particulate media (5 um less) so as to reach high levels of performance. For columns from 50mm to 1000mm inner diameter, the column efficiency can reach up to 40,000 theoretical plates per meter(with 10um packing material). This requires an excellent distribution. Our engineers have innovated in the distributing groove at the column ends and designed efficient solvent distribution systems to obtain optimum theoretical plates. For the better control of the chromatographic conditions, DAC columns can be coat with a temperature jacket and/or insulation.

Specifications
Concept of the H-TREE: using the structure of large scale integrated circuit field, enforcing distribution, 8 grade H trees and level 1 grade X trees. The deal volume of the distributor is just 1% of the dead volume of the column.

  Column Inner  diameter               
Column tube thickness            
Pmax of Column                 
Tube length:                     
Material:                    
Roughness  inside                   
Packing height                    
Frit material                        
Pore size                       
Piston Sealing Ring                 
Column Bottom Sealing            
Distributor Material                  
Distribution Mode
50mm             
10mm 
100bar
500mm
316L stainless steel
Ra ≤0.4
250mm (adjustable,max350mm)
SST316L
3-5um (woven mesh frit)
RA51 series material
material:PTFE
SST316L
Net type
   Column Flange Type Flanges design  
   Piston
Material
316L stainless steel
   Hydraulic Cylinder Cylinder diameter
Maximum working pressure
Viscosity range
Test pressure
50 mm
100 bar
46-68cst
315 bar
   Gas drive pump
Model
Pressure ratio
Flow range
Tated pressure
M022 MAXIMATOR
1:29
2.22L/min
29Mpa
   Pressure Meter
Air pressure meter :
Hydraulic meter :
0-10 bar, 0.01 degree
0-400 bar, 0.1 degree
   Working Pressure
100 bar max. Piston act on the column bed
 
   Air supply Requirement
0.6-1.0Mpa
 
   Weight 70Kg
   Connecting tube
1/16 inch (OD)
 
   Oil in the Hydraulic
 Cylinder
Viscosity range: 46~68cst
 
   Wetted Material
SS316L, PTFE
 


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