Slittering Line

Circular shears with integrated deburring and winding unit

Since 2001 Cobra is proud to run one of the most innovative strip steel processing lines for narrow strips.

The line features 10 winding units, integrated deburring and two high performance welding units. By utilizing different welding processes we are enabled to “endlessly” link various materials to large coils. Strips up to 0.2 mm thickness are processed by laser welding, while thicker materials up to 0.8 mm are welded by a micro-plasma source.

In 2021 our strip steel processing has been upgraded to handle coil weights of up to 1000 kg per unit. 

Flammen beim Härten

Heat Treatment

Hardening and heat treatment of measuring tape strips and spring strips is performed on our 8 heat treatment plants.

In addition to that we offer commission strip steel processing of flat wires and other strip steels under inert gas using hydrogen and nitrogen in compositions ranging from 0 to 100%. As a special feature we offer the so called thermal stretch levelling for stainless austenitic steels to minimize the saber of the strips by high temperature stretching (up to 600 °C).

Initial start-up furnace 1 + 2
Hardening plant

Our furnaces are designed for temperatures up tp 1200 °C. Using innovative isolation materials and energy efficient heating we achieve low energy consumption and best processing results. 

The use of hydrogen ensures maximum heat transfer rates during the chilling process to produce non deforming strips and prevent internal tension.

Camber Calculator

The conversion of straightness deviation is a non-linear equation. With our handy Camber Calculator you can convert the known deviation to any length.

Just input the saber y1 for a given length x1 and the calculator will do the rest for you to output the camber y2 for any desired length x2.

Length x1:
Length x2:
Camber y1:
Camber y2:
Length x1 = m
Camber y1 = mm
Length x2 = m
Camber y2 = mm
Length x1:
Length x2: