Schaeffler Global Technology Network

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Modernization of Four-high Heavy-plate Mill Back-up Rolls
Reference / GTS | 2015-08 | GTS 0100 | English

Modernization of Four-high Heavy-plate Mill Back-up Rolls

SMS group GmbH offers metallurgical plant and rolling mill technology from one source. The group‘s plants, machines, services and process know-how are used in the steel, aluminum and other non-ferrous metal industry worldwide. Heavy-plate mills from SMS Group GmbH allow steelmakers to cover the entire range of products and to supply plates with tailor-made material properties for every application. Challenge for Schaeffler: At the beginning of 2012, SMS group GmbH received an order from the high performance alloy company VDM Metals GmbH, which produces plates and sheets in Siegen, Germany.

Publisher: Schaeffler Technologies AG & Co. KG

 
Performance Based Contract in the Steel Industry
Reference / GTS | 2015-03 | GTS 0050 | English

Performance Based Contract in the Steel Industry

ARMCO do Brasil is a manufacturer of specialty steel strip products, serving a broad industrial sector of the local and international market in Brasil. To the wide range of products contains for example zinc plated products, dozens of thermal and surface treatments and non pollutant products. Challenge for Schaeffler: In 2006, ARMCO do Brasil decided to conclude a performance based contract for its São Paulo plant in order to reduce the 874 hours of unplanned downtime (costs: approximately € 50 000/year) as well as the demand for bearings, seals and lubricant (costs: approximately € 500 000/year).

Publisher: Schaeffler Technologies AG & Co. KG

 
Reconditioning in the Steel Industry
Reference / GTS | 2015-02 | GTS 0088 | English

Reconditioning in the Steel Industry

The customer operates an stainless steel plant in Belgium with approximately 1300 employees. The annual steel production amounts to approximately one million tons. Challenge for Schaeffler As Schaeffler Belgium’s portfolio did not previously include the reconditioning of spherical roller bearings from continuous casting plants, Schaeffler’s biggest competitor predominantly provided this customer and other steel works with this service. Schaeffler Belgium has extended its range of services to include rolling bearing reconditioning independent of the manufacturer. This service takes place in various reconditioning stages.

Publisher: Schaeffler Technologies AG & Co. KG

 
Modal Analysis helps to increase Speed of Stretch Reducing Mill
Reference / GTS | 2014-08 | GTS 0060 | English

Modal Analysis helps to increase Speed of Stretch Reducing Mill

The Spanish customer is a world leading manufacturer of seamless pipes. He offers a wide range of products for different industrial areas, e.g. the oil, automotive and mechanical construction industry as well as the energy sector and the overall construction industry. Challenge for Schaeffler: The customer had invested about 80 million euro in its production process with the objective to install a new pipe reduction gear on its main reduction stand. However, for unknown reasons he was unable to increase the machine speed beyond 80 percent capacity for the most important products.

Publisher: Schaeffler Technologies AG & Co. KG

 
Replacement of Main Trunnion Bearings on BOS Plant Vessels
Reference / GTS | 2014-06 | GTS 0080 | English

Replacement of Main Trunnion Bearings on BOS Plant Vessels

The Tata Steel Group has operations in 26 countries and produces 28 million tonnes of steel per year. Port Talbot Works is part of the Strip Products UK business, producing hot rolled, cold rolled and hot dip coated steel. Challenge for Schaeffler: Tata Steel Port Talbot has two BOS steelmaking vessels (V1 & V2) in operation. The main trunnion bearings on a BOS (Basic Oxygen Steelmaking) plant at Tata Steel Port Talbot had to be replaced due to a sudden bearing failure on the non- drive side (NDS) of the V2 BOS plant vessel. Loss of operation of a BOS vessel would result in significant lost revenue for Tata Steel.

Publisher: Schaeffler Technologies AG & Co. KG

 
Integrated Bearing and Service Solution for Converters
Reference / GTS | 2014-06 | GTS 0077 | English

Integrated Bearing and Service Solution for Converters

The customer is a leading European steel manufacturer with several production plants. Its annual production of crude steel exceeds 10 million tons. Challenge for Schaeffler: The oxygen steel plant operates two converters. The customer wished to replace converter 1 and – at the same time – increase this vessel’s size to a capacity of 400 tons. This application demanded a highly ambitious solution for the trunnion bearing itself as well as for the newly designed ferrocast housing. As the converter is an absolutely critical bottleneck to the downstream inline production processes and the customer had already had excellent experiences with Schaeffler condition monitoring solutions, the customer decided to have the bearings and gears monitored.

Publisher: Schaeffler Technologies AG & Co. KG

 
Condition Monitoring with the FAG DTECT X1 in a  Rolling Mill
Reference / GTS | 2014-06 | GTS 0049 | English

Condition Monitoring with the FAG DTECT X1 in a Rolling Mill

The name of Aleris Aluminium Koblenz GmbH stands for one of the world‘s leading manufacturers of high-quality rolled aluminum products. Since production began in Koblenz in 1964 the company has been providing a specialized range of products manufactured to high quality standards. Challenge for Schaeffler: In a rolling mill there is a hazard of rolling stand fires due to hot running and loss of quality in the rolled product due to roller bearing defects on the bridle rollers. In order to offset this risk the customer was looking for an opportunity to coun - teract the risk of failure. Schaeffler therefore was asked to monitor the critical machine components with the aid of vibration diagnosis.

Publisher: Schaeffler Technologies AG & Co. KG

 
FAG ProCheck Increased Availability of Stretch Reducing Mill
Reference / GTS | 2014-04 | GTS 0065 | English

FAG ProCheck Increased Availability of Stretch Reducing Mill

The customer is a world leading manufacturer of seamless pipes. He offers a wide range of products for different industrial areas, e.g. the oil, automotive and mechanical construction industry as well as the energy sector and the overall construction industry. Challenge for Schaeffler: Thanks to a service contract with Schaeffler based on offline vibration analysis some chronic damage had been detected in the tandem motor bearings of the customer‘s hot strip mill. Schaeffler had determined that these damages were caused by current passage.

Publisher: Schaeffler Technologies AG & Co. KG

 
Increased Gearbox Availability in a Welded Steel Plant
Reference / GTS | 2014-04 | GTS 0063 | English

Increased Gearbox Availability in a Welded Steel Plant

The customer is a leading manufacturer of hot strip and cold formed welded steel pipe. The company produces a number of different pipe finishes, such as: galvanizing, cutting, beveling, threading and flanging. Challenge for Schaeffler: The main gearboxes in the pipe rolling mills’ transmission systems are constantly subjected to the dynamic forces produced in the rolling process. These operating conditions make the gearboxes susceptible to wear and damage. In the past, these gearboxes where serviced on a preventive maintenance basis.

Publisher: Schaeffler Technologies AG & Co. KG

 
Thermographic Examination Of Cabinets
Reference / GTS | 2014-04 | GTS 0062 | English

Thermographic Examination Of Cabinets

The customer is one of the leading Spanish manufacturers of heat and cold formed welded steel piping and hot strip. Its annual production amounts to 130 000 tons of 3/8 inch to 4 inch piping, nearly half of which is exported. Challenge for Schaeffler: A large number of control cabinets is installed in each of the customer’s two plants. In the past, all control cabinets were examined and their contact screws tightened every month. Nevertheless, the customer was experiencing unplanned downtimes due to control cabinet failures.

Publisher: Schaeffler Technologies AG & Co. KG

 
 
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