Transfer, progressive-die presses introduced for automotive, contract stampers

March 11, 2008

Schuler Inc. has introduced a midsized range of standard progressive-die and transfer presses designed for automotive suppliers and contract stampers.

The S series includes three base models of progressive-die presses with press forces from 1,100 tons to 1,750 tons and 15 to 50 SPM. The series also includes five basic transfer press models with press forces from 1,350 tons to 3,500 tons and 10 to 30 SPM.

The slide and bed sizes are standardized. For the transfer press models, bed sizes are from 200 in. by 96 in. to 300 in. by 120 in. The progressive-die models offer sizes from 144 in. by 72 in. to 240 in. by 96 in.

To minimize the press footprint, the presses incorporate a lower construction—which includes optional vibration mounts—as well as air tanks and power units attached to the press body. This enables the use of a uniform pit design and size and keeps basement space more accessible for scrap handling systems, states the company.

Two standard drive systems for the different press types determine motion characteristics. For complex forming operations on transfer presses in which low drawing speeds are necessary through the working angles, a link-drive system generates a low travel rate through the downstroke. An eccentric drive is used with all progressive-die presses to create fast stroke rates and increase output.

Structural components of the presses are heat-treated to relieve internal stresses from welding to ensure structural stability, dimensional accuracy, and long equipment life. Double-helical gear sets are used as part of the mechanical-drive system to provide consistent operation to extend die service, increase part quality, and minimize operating noise.

The presses feature the company's eight-point slide guide system; a central slide locking device designed to allow operators to lock and unlock the press slide in any position without using ram blocks; 16-in. slide adjustment travel for varying die heights, and to speed die inspections, repairs, and changeouts; an interactive and intuitive operator interface and HMI control that provides access to all main press functions; a display that is designed to simplify navigation to the various control elements; and graphic prompts that assist in training through operational procedures and data input and output routines.

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