CHICAGO (June 18, 12:50 p.m. EDT) — At NPE 2000, officials of Sandretto USA Inc. might start sounding like the Beatles — "Number nine, number nine, number nine."
That's because the Chicago event marks the first general showing in North America of the Sandretto (S738) Series Nine, which has been available in the United States since last fall. (It replaces the Series Eight, but the Beatles never had a song about that). The company also is rolling out a new controller.
The five-point, toggle-clamp presses come in clamping forces of 75-550 tons. In Chicago, Sandretto is showing three of the Series Nine machines. One press features a two-cavity mold for a card-deck holder, courtesy of Paradigm Plastics Inc. of Three Oaks, Mich. A second Series Nine molds medical syringes on a 96-cavity mold in an 11-second cycle. The press uses magnetic platen technology from Tecnomagnete Inc.
Another press will feature a new gas-assisted molding technology from Incoe Corp. (Booth N6426) of Troy, Mich., called external gas molding, which uses a blanket of nitrogen gas, injected on the outside of the part, in place of the packing phase normally performed by the injection molding machine. The process also compensates for part shrinkage during cooling.
The hydraulic system incorporates a closed-loop, twin variable-volume Rexroth pumping system. The two pumps either can work independently, to control overlapping movements, or both pumps can work together as one.
Because of the efficient hydraulics, Freedom, Pa.-based Sandretto is equipping some smaller Series Nines with air-cooled hydraulics as standard, instead of the usual water-cooled system.
The machine also is shorter, thanks to a twin-ram design on both the injection unit and the clamp unit.
Sandretto's new controller, the SEF 2000, currently is only available on the Series Nine presses. In the future, the controller will be added to other product lines, the Meta T, Meta TE and Mega H.
Although the controller is personal-computer based, it does not run off-the-shelf software and is specially designed to control only Sandretto machines.
Sandretto is touting the controller as easy to use, with a user-configurable page, online help screens and other features. Data from a mold can be stored on a floppy disk and taken with the mold to another injection press.
Sandretto said the SEF 2000 represents one of the first successful collaborations among members of Italy's Cannon Group. Cannon bought Sandretto USA's parent, Sandretto Industrie SpA, in 1997. Engineers from Cannon, Sandretto and Automata, an Italian maker of industrial controls also owned by Cannon, worked together on the project.
In another development made possible by the Cannon ownership, Sandretto USA is marketing vertical-clamp injection molding machines to go with its main line of horizontal machines. The company is teaming with Canon Tecnos of Milan, Italy. Tecnos specializes in vertical machines for urethanes, compression molding, injection molding and lamination.
The injection unit can be horizontal or vertical.
Sandretto and Tecnos already have supplied machines for customers in Europe.