Metalúrgica Riosulense S/A

Contact details

  • Rua Emilio Adami 700
  • 89164910 Rio do Sul - SC
  • Brazil


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About Us

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Get to know Riosulense

Riosulense is the largest Latin-American manufacturer of Valve Guides, Valve Seats, Mechanical Valve Tappets and Special Alloys Casted Parts. In 2011, the company completed 65 years of a history written by its capacity of innovation and adaptation to the new demands of the worldwide market.

Guided by the spirit of innovation, one of the fundamental values of Riosulense, the company increased the production of parts and services and got consolidated in the market for the quality of the solutions offered to customers.

The products of Riosulense are supplied to the main OE Companies in Brazil, United States and Europe. The company also acts in the spare parts market, provisioning the national and international market with its line of products.

At the age of 65 years, the company is proud of developing and manufacturing high quality and reliability products that are recognized by the market. Our mission is our commitment: “offering sustainable solutions to move the world".


The Riosulense develops its business based on values that guide all decision-making enterprise. Values such as agility, flexibility and sustainability, respect and transparency reflect how the company applies its efforts to grow with social responsibility. Conscious of our social role, develop projects in the areas of education, culture, health promotion, environmental protection and respect for diversity in order to benefit our employees, our partners and the local community.


Certified processes


In furnaces through induction of medium frequency.


In automated Cold Box for small and medium parts. In automatic no-bake system IMF.


For production of steel bushings for valve seats and cylinder liners.


Composed by machining centers, CNC lathes, multi-spindle lathes, centerless and table grinding machines and several special dedicated machines.

Heat treatment:

Facilities for annealing, normalization, quenching and tempering.

Surface treatment

Painting, nitrading and phosphating.

Process Control

Metallurgical Laboratory with spectrometry, metallography, and mechanical tests. Complete metrology with three-dimensional measurements. Crack tests with magnetic particles and penetrant liquid.

Range of services

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Automotive Market

Riosulense is a company that produces parts and solutions for the automotive market. There are more than 4700 items of several dimensions and models for application in the main brand of light cars, utility trucks, trucks, agricultural machines, railway and naval transport, besides motorcycles.


The history of the automotive market began Riosulense the aftermarket. In Brazil, our parts come in all regions through distributors and auto parts that provide solutions for our grinders and machine shops. In Latin America, our products already supply the markets of Peru, Paraguay, Chile and Argentina.

The quality and competitiveness of our products and solutions, along with our distinguished service to clients, have expanded the scope markets and the value of our brand.

OE Companies

Having "Solutions to move the world" as our business, Riosulense extends its tradition and liability across the OE market in its 70 years of history. Its products focused on the automotive sector: utility trucks, trucks, agricultural and railway equipment are found in the main OE Companies in Brazil, United States and Europe.


Certification: ISO/TS 16949

We are ISO/TS 16949 certified, a standard that aligns the quality systems of the automotive industry to the global patterns, specifying the quality requirements for projects, development, production, assembling and technical support of products.

Exhibitor at the following trade fair

Automechanika 2016

13.09.2016 - 17.09.2016 Hall: 6.2 Stand: E 56