DAMPENING SYSTEMS -- Striking a Balance
The system's computer controls are programmable and enable the solenoid to be regulated in thousandths of a second. Four programmable curves are tailored to the paper stocks run by a shop. Functions can be selectively performed by an individual head, the whole bar, a whole unit (upper and lower) or the entire press.
Smith RPM's pulsed dampeners offer automatic flood control for fast makeready, zone control to easily adjust water across the cylinder and clean, closed-loop fountain solution circulation, Shupp says. The TouchStar model is user-friendly and easily programmed to track press speeds, with the flexibility to adjustment for non-linear curve tracking with ink, he adds.
Its patented flow-through design is said to maintain a consistent, fresh flow of fountain solution to the plate. Independent nozzle pulsation provides overlap control and precision adjustment for higher quality printing. TouchStar II digital controls incorporate chemical-resistant touchpads and LED readouts for maximum visibility.
Accel Graphic Systems offers the Crestline continuous feed dampener, which is designed for small offset presses. The system reportedly provides instant ink and water balance, and installs quickly without altering the press. It is designed to provide an uninterrupted flow of fountain solution to the plate, run alcohol-free and reduce paper waste by up to 50 percent, according to the manufacturer.
Crestline dampeners are easy to use and include single-lever control, gear-driven operation, ball bearing construction and a water tray that is easy to remove, Carpenter says. Most Crestline systems can be installed in less than one hour, he adds.
Townsend Industries also offers a solution for the small sheetfed market in the form of a continuous dampening system for S-1 models of its T-51 self-contained, independent printing units. It is available for presses from A.B.Dick, Multigraphics and Ryobi/Itek.