The ProRate PLUS-S Feeder is a continuous gravimetric single screw feeder, ideal for feeding free-flowing bulk solids that require neither horizontal nor vertical agitator. Perfect for feeding pellets in the plastics industry. The feeder with its extension hopper is suspended on a weighing system in a compact frame. Together, the proven Smart Force Transducer (SFT) weighing technology together with state-of-the-art PCM controls provide accurate and reliable performance. The AC vector-duty motor provides a high turndown, offering great flexibility in feed rate range. Product contact parts are manufactured of stainless steel and polyurethane.
Feed Rates |
Auger screw 1 screw/pitch/tube Ø: 15/9.5/22 mm |
Auger screw 2 screw/pitch/tube Ø: 22/24/29.7 |
| Fine granulate (0.82 kg/dm3) |
4.8 - 60 dm3/h | 20 - 190 dm3/h |
| 0.17 - 2.12 ft3/h | 0.71 - 6.71 ft3/h | |
| Plastic pellets (0.66 kg/dm3) |
3.3 - 40 dm3/h | 17 - 200 dm3/h |
| 0.12 - 1.41 ft3/h | 0.6 - 7.06 ft3/h |
Actual feed rates depend on screw fill and vary based on individual material characteristics (flowability, particle size and geometry). The sample feed rates were tested with free-flowing materials as stated. For feed rates at the upper or lower limits of these ranges, check with a Coperion K-Tron Test Lab.
The PLUS-S feeder comes with both vertical and horizontal outlets as well as two screw sizes.
