Loss-in-Weight Roller Feeder

The Loss-in-Weight Roller Feeder is a highly precise gravimetric solution designed for continuous feeding of dry electrode coating powder blends directly into the calender gap. The blends typically include active materials (anode or cathode) as well as conductive and binder additives. Ideal for laboratory and pilot production environments, the feeder is mounted on a robust platform scale utilizing high-accuracy SFT weighing technology.

The system features two replaceable rollers housed within a compact enclosure. The innovative dual roller design, with its dynamic feeding gap, ensures gentle material handling while preventing bridging. This guarantees uniform and consistent material application across a coating width adjustable up to 400 mm. The design promotes process stability and repeatable results, which is essential for optimizing and scaling the electrode production process to achieve high-quality results.

Coperion K-Tron’s unique vibrating wire weighing technology is based on the theory that the resonance frequency of an oscillating wire depends on the wire tension produced when a load is applied. Force, when derived from an applied weight, is transferred mechanically to the wire. The resonant frequency is measured to determine the weight. In Coperion K-Tron’s patented Smart Force Transducer (SFT), the signal is directly converted into a digital weight signal by a built-in microprocessor. The signal is then communicated noise-free via RS 485 to the controller. Every SFT provides a true 8,000,000:1 weight resolution in 20 ms and comes with a 5 year warranty.

Find out more here: SFT Weighing Technology