Focus on serving Metal, Mining and Crane Segment.

Focus on serving Metal, Mining and Crane Segment.

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Industry: Steel and rolling mills

Hoist /Drum: Improved operating reliability and positioning accuracy at the ladle crane

Fundamentally improve the operating reliability and positioning accuracy of the ladle crane hoist used in steel production. Installation of the modular universal encoder system U-ONE, which offers the following special characteristics • Basic unit mounted directly at the hoist drum by using a double joint coupling on a tailor-made base plate construction • Signal transmission …

Hoist /Drum: Improved operating reliability and positioning accuracy at the ladle craneRead More

Slab Detection in Excessive Steam (HMD)

On the roughing mill exit, there is a lot of steam due to the spray header. The steam obstructs field of view of the traditional scanning type HMDs as result, occasionally the signal flickers for a millisecond. The next generation HMD 4.0 from Proxitron have intelligent software features which allows to set dual thresholds (hysteresis). …

Slab Detection in Excessive Steam (HMD)Read More

Precise Looper Position Feedback

Loopers are normally used to control the tension of the metal strip between roll stands. The rotational angle of the looper is measured by a feedback encoder that is exposed to special demands. For this application Johannes Hübner Giessen developed a special looper encoder, which boasts a considerably longer lifetime thanks to especially designed-in features. …

Precise Looper Position FeedbackRead More

Strip detection after laminar cooling

Due to low temperature of the strip at the laminar table, the response from a standard scanning type HMD was unstable. Proxitron light barrier was installed at the down coiler. It provided higher functional reserve up to 750 m Home  Case Studies Strip detection after laminar cooling Strip detection after laminar cooling Home    Case …

Strip detection after laminar coolingRead More

Converter/ Inclined hoist: Robust encoders ensure more precision and less downtimes

Home  Case Studies Robust encoders ensure more precision and less downtimes The skip-car control mechanism utilised to date included two mechanical, geared cam limit switches that are time consuming to program. Upgrading to meet modern demands required suitable components for measuring actual values that are not only characterized by their high accuracy and functional reliability, …

Converter/ Inclined hoist: Robust encoders ensure more precision and less downtimesRead More

Blast furnace/Skip hoists: Retrofitting a U-ONE provides higher accuracy and improves availability

Home  Case Studies Retrofitting Availability The blast furnace skip hoist is protected against overspeed on the motor side by a mechanical overspeed switch with integrated speed increasing gear. The universal encoder system U-ONE® is to replace the outdated sensor systems on both the motor and drum sides. Thanks to its modular design it is possible to adapt the …

Blast furnace/Skip hoists: Retrofitting a U-ONE provides higher accuracy and improves availabilityRead More

Alignment for Cut to Length: Positioning lasers

Operator from ECR has to verify that plates is in center for shear to work properly. Needed a good visible laser line on dark plates. Laser length up to 20mtrs. Z-laser designed the next generation green laser with high output power. Visible on dark surfaces with limited impact from ambient light conditions Home  Case Studies …

Alignment for Cut to Length: Positioning lasersRead More

Temperature Measurement at Roughing Mill entry and under the strip

Hot rolling mill processes needed accurate temperature measurement, as well as efficiency in extremely high temperature. Rugged pyrometer was installed at the measuring site, with electrically isolated sensing head and fiber optic. Home  Case Studies Temperature Measurement pyrometers Temperature Measurement at roughing mill entry and under the strip Home    Case Studies    Pilger mill …

Temperature Measurement at Roughing Mill entry and under the stripRead More

Hot and Cold Rolling Mills / Main drives: Modernization of existing encoder installations

For precise speed control in rolling mills the main drives of the roll stands and the coilers need to be equipped with an encoder. In addition, it is often necessary to provide increased protection for personnel during special operating modes, such as: For this application Johannes Hübner Giessen has been working with Motor OEMs for …

Hot and Cold Rolling Mills / Main drives: Modernization of existing encoder installationsRead More