
| Spec. | D*H*T (mm) | Surface area (m²/m³) | Free volume (%) | Number per m³ | Bulk density (Kg/m³) | Dry Packing Factor(m-1) | 
| Ø 6 | 6*6*2 | 789 | 73 | 3110000 | 737 | 2030 | 
| Ø 10 | 10*10*2 | 440 | 70 | 720000 | 700 | 1280 | 
| Ø 15 | 15*15*2 | 330 | 70 | 250000 | 690 | 960 | 
| Ø 16 | 16*16*2 | 305 | 73 | 192500 | 730 | 784 | 
| Ø 25 | 25*25*2.5 | 190 | 78 | 49000 | 505 | 400 | 
| Ø 40 | 40*40*5 | 126 | 75 | 12700 | 577 | 305 | 
| Ø 50 | 50*50*5 | 93 | 81 | 6000 | 457 | 177 | 
| Ø 80 | 80*80*9.5 | 90 | 68 | 1910 | 714 | 234 | 
| Ø 100 | 100*100*10 | 70 | 70 | 1000 | 700 | 172 | 
| Ø 150 | 150*150*15 | 50 | 68 | 295 | 790 | 142 | 
Note: XinTao ceramic Rasching ring is same as Raschig ring.
 
                 
                 
                 
                 
                 
                 
                 
                