Page 3 of catalogue Ehrt - Bending machines of Ehrt Maschinenbau GmbH

B e n d i n g Te c h n o l o g y

Angular Measurement Our measuring accuracy is 0.1º. This is attained by using bending prisms with electronic angular measurement technology. The computer then calculates the required final stroke. The spring back of every bend is compensated regardless of material type. Our high angle accuracy of +/- 0.2º is achieved instantly with the first work piece. No adjustments are required. Material waste amounts will drop considerably. Even inconsistencies within a single piece of material are automatically adjusted.

Angle Specification by Stroke Curve The stroke system also enables the user to specify an angle from which the stroke is calculated by using stored stroke functions. Bending accuracy in that case is dependent upon material properties such as thickness, hardness, etc. These properties may differ from one piece of material to another.

Stroke Measurement If the bending prisms with integrated angular measurement cannot be used due to their size, bending prisms without angular measurements can be used. Perhaps the distance between two bends is too short. In such cases the control unit can be switched from angular to stroke measurement. This method allows the selection of the bending ram distance. Setting accuracy is +/- 0.1 mm. A final stroke is usually not required.

U-Bending System For tight and narrow U-bends, the bending tool can be turned upside down. The stroke movement is then performed by the bending prism. The material in that case moves toward the operator. Bends with openings from 40 mm and an accuracy of 0.2° are possible

Edgewise Bending Special bending Tools that include electronic angular measurement allow a high bending accuracy even when bending on edge is required.

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Bending Machine EB 20 CNC