09.09.2008

Schuler notching press at the Euroblech: precise and flexible manufacturing

At the Euroblech 2008, customers in the energy technology sector and manufacturers of hybrid drives will be drawn above all to the high-speed presses and blanking technology on show at Schuler’s fair stand. The exhibits will include a notching press offering hands-on forming technology. Schuler will also be presenting its SAL high-speed presses and the patented Segment Master System, which has been specially designed for the production of laminations for hybrid drives.

One company already using two Schuler notching presses is Stanztechnik Jessen, located near Berlin. In addition, the plant boasts six of Schuler’s high-speed blanking lines, which ensure precise and reliable production of rotor and stator laminations. The company also uses the new Segment Master System – a joint development of Schuler and the Roos & Kübler Group – which optimizes the production of large lamination stacks, while helping to enhance the efficiency of hybrid engines.

Stanztechnik Jessen manufactures high-quality products for manufacturers of electric motors and transformers. Schuler equipment offers press shops utmost precision and slide guidance accuracy, and thus long die service life. Axel Nann, CEO of the Roos & Kübler Group, states: “Our order books are full and we’re producing round the clock at our facility in Jessen. It’s therefore absolutely essential that our machines are totally reliable. The Schuler lines are particularly outstanding in meeting these requirements.”

High-performance design features

Schuler’s high-speed blanking presses boast top-performance design features, such as dynamic mass counterbalance and a clearance-free slide guidance system. Their high degree of flexibility and wide range of optional features ensure high standards of performance and quality.

A further feature of the Schuler presses is their repeat accuracy in the production of punch-bundled motors and transformers. A particular challenge in this connection is the avoidance of any variation in penetration depth during initial press run-up, in order to prevent inaccuracies in the connection points of the punched bundles. A penetration depth regulator automatically adjusts the slide during operation – in steps of a hundredth of a millimeter – in order to keep slide penetration depth constant at all operating levels.

New Segment Master System: high degree of material utilization and improved handling

Based on a Schuler high-speed blanking press, the Segment Master System enables the material-saving, and thus cost-efficient production of ring-shaped lamination stacks used in hybrid systems.

Individual segments are stamped out of the coil and formed into a circular shape in a slewing ring. At the same time, the electromagnetic properties of the lamination stacks are improved. The system supplies complete stacks which are ready for further processing. “Compared with previous methods for manufacturing lamination rings, this process offers material savings of over 60 percent,” explains Hans Dieter Jung, Schuler’s sales manager for high-speed presses/blanking technology. “In the Segment Master system, the stamped segments emerge from the machine as ready-packed rings. This greatly simplifies handling and reduces space needs for the production process,” adds Hans Dieter Jung.