The automated pressure filter test is used for determining quality differences in a polymer caused by agglomerates, insufficiently dispersed fillers resp. contaminations also in the bypass directly at the production extruder. For this version, the screens are automatically changed.
The melted thermoplastic polymer flows via a filter screen. Agglomerates, contaminations and other insufficiently dispersed resp. melted particles cause an increasing clogging of the filter screen – this increases the pressure in the measuring chamber. The pressure transducer registers the pressure increase in front of the screen and documents it in the measuring trend. The pressure curve shows the quality of the melt and enables a valid statement about the quality of the recycled material, compounds or masterbatches based on valid data.
During the filter change, extruder and melt pump continue running. A filter magazine for up to 20 filter cassettes guarantees the continuous operation of the pressure filter test.
Advantages
- Little downtime and personnel costs compared with the manual screen change
- Quick quality test at the production line
- Connection to each extruder, production extruder or compounder, also in bypass mode
- Compact design
- Fully automated system
- No additional effort for laboratory analysis
Materials
- Polyolefins
- Technical polymers such as PET, PA, PC
- Recycling material
Application
- Standardized pressure filter test
- Quality control
- Quality control in recycling processes
Control
Fully integrated evaluation software
Customers
- Masterbatch manufacturers
- Recycling companies
- Raw material manufacturers
- Compounding and refining companies
- Processing companies
- Universities and institutes
