The double disc refiner paper pulp making equipment designed and manufactured by Aotian Company is traditionally installed in stock preparation plants, for both waste paper and virgin pulp, to improve fibers characteristics in order get a better sheet formation and enhance its properties.
It can be used alone, or multiple refiners can be used in series or in parallel, based on the requirements of the pulp refining process.pulp refining process.
Application of double disc refiner : Application of double disc refiner
The Double Disc Refiner mainly used for coarse and fine refining of pulp,broken paper ,recycled pulp,and it is available for pulping long fiber pulp materials,such as cotton pulp,wood pulp and hemp pulp.



1 | Model | DD450 | DD500 | DD550 | DD600 | DD660 | DD720 | DD900 |
2 | Diameter of disc (mm) | ∅450 | ∅500 | ∅550 | ∅600 | ∅660 | ∅720 | ∅900 |
3 | Disc speed (r/min) | 980 | 980 | 980 | 980 | 750 | 750 | 750 |
4 | Capacity (t/d) | 8-80 | 10-100 | 10-120 | 12-150 | 12-200 | 15-250 | 20-400 |
5 | Power (kw) | 90-160 | 132-200 | 160-250 | 200-315 | 220-500 | 250-800 | 315-1000 |
6 | Pulp consistency (%) | 3-5 | ||||||
7 | Max operating pressure (MPa) | no more than 0.6 |






