Five-Roll Refiners
type HFS
Our five-roll refiners, type HFS are available in 3 performance ranges:
1. High-performance* 1800 mm HFS 180S with up to 1500 kg/h @ 20 µm¹
2. 1800 mm HFS 180E with up to 1150 kg/h @ 20 µm
3. 1400 mm HFS 140E with up to 900 kg/h @ 20 µm
The automatic roller gap setting and proven back-pressure system of our five-roll refiners, type HFS provide:
- precise fineness adjustment without interruption of production
- wide range of fineness and flexible speed drive
- high flexibility to process dry as well as soft masses
- stainless steel storage/feeding hopper and discharge chute
- best-in-class energy efficiency
- optional 100% fineness monitoring of the entire working width of the roll and automatic fineness control with our Fineness Measuring Unit, type HMB
¹Thanks to the increased diameter of the 2 top rolls significantly improved refining efficiency is guaranteed. 3 units of our high-performance HFS 180S can replace 4 units of standard 1800 mm five-roll refiners.
Fineness Measuring Unit
type HMB
Our five-roll refiners, type HFS can be equipped with our Fineness Measuring Unit, type HMB.
The measurement principle is based on the direct correlation between throughput and fineness of a refiner. By measuring the throughput at the discharge chute the final fineness can be exactly determined over the entire roll length.
The Fineness Measuring Unit with a weighing belt fixed on 2 load cells on each side of the refiner provides:
- 100% monitoring of the fineness over the entire length of the roll
- best-in-class fineness accurancy ± 1 µm
- online control of the fineness with automatic adjustment of feeding gap in case of fineness deviations
- automatic correction of missallignments during gap calibration
