One stop service for steel industry

Uzbekistan-composite roll technical support

Uzbekistan’s state-owned enterprise, located in Bekabad, built a large steel production enterprise in the Soviet Union in 1944,the annual output of steel is 700,000 tons with 2 production lines for bars and 1 high-line production line.

Our company designed pre-cut composite rolls (19&20&21 stand) for the No. 1 and No. 2 bar production lines in 2018, and provided five sets of composite rolls, which have been used well. In April, the customer reported that there was a horizontal cross crack in the roller ring in 19th stand, and provided the rolling record and photos. Our engineers immediately conducted a seminar and get a preliminarily judgement that the temperature of the composite roll shaft was too high, causing the roller ring burst ,and the same time,require customer provided a photo of the water pressure gauge at the time of production running,in order to avoid in the future,customer invited our engineers to discuss with the steel mill engineer at site.

In order to solve problems swiftly for steel enterprises and avoid such incidents from happening again,our company decided to arrange engineers to go to Uzbekistan immediately. After confirming the itinerary with customer, we arrived in Uzbekistan in May and immediately inspected the site once we arrived. Rolling mill stand,rolled material, production specifications, production process and so on,on-site viewing of the customer’s process of replacing the cooling water pipe and the bearing.

Lastly get the conclusion at site with engineers of steel plant,and Combined with the transverse cracks appearing in the roller ring, and the experience of domestic and foreign use,we gave our solution at site,and they accepted it,and hope we could improve the production line together.

Since the customer did not have the disassemble ability, the final agreement was reached to transport the composite roller to our factory for maintenance and replacement. It is the first time for our company to return the repair of the composite roller of foreign customers, which lays a foundation for providing faster and more efficient services to foreign customers in the future. At the same time, it also solves the hidden dangers of the composite roller for oversea small steel enterprises.

The technical negotiation was a complete success ,and we also felt the local culture of Uzbekistan and the warm reception of our customer.We are always striving for excellence and quality. LMM hope that we could make more contributions to Uzbekistan steel companies with our joint efforts.



As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

LMM Main product series

Core technology products:

  • magnesia carbon brick
  • slide gate plate
  • graphite electrode

Core technology products:

  • Hss roller
  • cast steel rolls
  • tungten carbide ring roller

Core technology products:

  • copper mould tube
  • copper mould plate
  • assembly & cooling jackts

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