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Examining trends in drives and motors: (Magazine); December 31, 1995, ... changes in proportion to the frequency change," says Wirth. "Torque control is critical to converting applications, because that's how you control web tension. An AC motor has an inherent amount of slip, ...
Bagmakers add a strong link to quality chain: (Magazine); July 31, 1995, ... and centerfolder inserter; pneumatic gusset and strap presealer; V-tip and wheel gusseting; electro-mechanical edge guide and positionable centerfolder; web stopper with servo-driven perforator; and dual-station ...
Salvage system removes, doctors roll stock: (Magazine); February 28, 1995, ... two regenerative dc drives coupled to a dancer system and computerized control for positive web control at all speeds on a range of substrates. It incorporates a dual-direction electronic web guide, pneumatically ...
Winding system suited for long lengths: (Magazine); February 28, 1995, ... cantilevered unwind with programmable constant tension, auto edge guide and pneumatic peel-off lay-on roll; entry and exit s-wrap pull rolls with adjustable draw control, auxiliary web rewind for unslit ...
Traditions fall as prepress moves into electronic age: (Magazine); December 31, 1994, ... was designed for the special niche markets of flexographic, large-size wide-web offset and screen printing, such as corrugated and folding-carton packaging billboard and display manufacturing, and textile ...