A Chinese customer is fulfilling its goal of running an especially environmentally friendly operation by using BaglessPlus disc filter sectors. By upgrading to BaglessPlus sectors, the papermaker is in a position to achieving very clean superclear filtrate with very high filtration efficiency. Instead of 500 ppm, a filtrate quality of less than 50 ppm was attained. This filtered water can be reused, which was previously not possible. The maintenance costs are also lower. Life time estimates for BaglessPlus range from 10 to 20 years.

Total savings amount is about EUR 200,000 per year. After the success of the BaglessPlus parts, the Chinese papermaker decided to rebuild several other parallel lines with the same technology.

Furthermore, rebuilding existing disc filters benefited another Asian customer. Special filter bags are used which were developed by Voith for rebuilding disc filters of other manufacturers. The filter can now take up substantially more backwater per second. Its capacity rose by 40% and fiber loss dropped noticeably. The paper machine runs at a production speed that is 10% higher. Voith uses products such as BaglessPlus sectors to rebuild existing machines. Improved operation is thus achieved for a fraction of the cost a new installation would involve.