Over the past few years Schuler has enjoyed strong growth in the supply of machines for the electric motor industry. In 2007 this trend is particularly noticeable in the rising number of orders from new customers in India and China for notching lines used to produce laminations for the electric motor industry. In combination with controllable dies, Schuler’s notching machines are proving particularly popular for the production of prototypes – for which there are currently no standard dies – as well as for serial production.

Short set-up times ensure high output

Schuler’s controllable dies set new standards in the manufacturing of laminations for electric motors and offer high output rates, thanks to their exceptional flexibility and short set-up times. By automating the die, Schuler has succeeded in combining the production of rotor and stator notches in a single, dynamic operation. As a result, no time is needed for unloading, die change and loading – and the time saved can be used more productively. In contrast to conventional notch blanking dies, controllable dies boast two to three different, pneumatically activated male and female dies. After punching the first notch row, the die automatically adapts to the punch diameter of the second notch row. The pneumatic system deactivates the die for the first row and activates the dies for the second or third row of notches. The notching machine then automatically punches the next row of notches in the subsequent operation.

Utmost accuracy at maximum speed

Optimum adjustment of the die to the stroking speed enables the user to achieve utmost accuracy at maximum output. The use of controllable dies is exceptionally effective for large laminations: dynamic use of the die means that no punching time is wasted for loading and unloading operations. With the aid of a dynamic mass counterbalance, Schuler’s notching machines can compensate for the additional die weight and also produce with the heavier controllable top dies at maximum output speeds (e.g. 1,300 strokes/min with the 80-kN notching machine N8N).

Rising demand from new customers

The high demand generated by the boom in the electric motor industry has led to significant growth rates for Schuler equipment featuring controllable dies in the past few years. The ordering of a controllable die by a Russian customer at the Coil Winding fair is confirmation that Schuler’s product range is ideally tailored to global developments in the electric motor industry.

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Coil Winding 2007, Berlin/Germany

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Tobias Apfel
Head of Corporate Communications & Investor Relations

Tel.: + 49 (0) 71 61 66-829
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Press release - 05/22/2007