The Spiral Press from JDV Equipment Corporation combines dewatering, compacting and conveying in a single compact unit for wastewater screenings and miscellaneous debris. A drainage zone at the feed end drains free water as solids are conveyed through the system. The compaction zone forms the material into a plug that is squeezed against an adjustable-pressure, spring-loaded door, which further dewaters and compresses the material against a wedge wire cage. The resulting liquids are drained off to return into plant flow. The end product of plugged solids is periodically expelled into a bagging system or container. 973/366-6556; www.jdvequipment.com.