The Rotary Press from Fournier Industries uses two slowly rotating screens to create a 2-inch channel that sludge passes through as it dewaters. A pressure restrictor on the outlet allows the operator to vary the degree of cake dryness in the final product. It has few components and is designed for ease of maintenance. The totally enclosed design mitigates odors and allows the operator to avoid direct contact with sludge. The control system allows for unattended operation, and can be equipped with a single dewatering channel, expandable up to six channels on a single machine. The unit has low power usage and noise levels, little water use and a compact footprint. 952/288-5771; www.rotary-press.com.