GE07: Sheetfed/Web Offset Presses — Windy City Wonders

The technology replaces traditional analog “open fountain” ink delivery with digital ink pack devices housing low-torque, in-line gear pumps. The pumps feed ink pulses to the ink train through individual valves, which are controlled digitally. The series of ink pack devices are mounted on an aluminum rail against the first ink roller. Each ink pack for commercial web applications has a synchronous AC motor and 12 individual ink metering valves that operate in a binary on/off fashion. The valves are each pulsed by separate digital signals, and varying the “on time” of the pulses allows precise ink volumes to be delivered.