With over 30 years in the market, we are a metallurgical industry specializing in machining, nationalization, development, and manufacturing of industrial parts. We also provide maintenance services for various sectors, with emphasis on:
Certified by ISO 9001:2015, we work together for the continuous and effective improvement of our Quality Management System. We develop projects, manufacture parts and provide services with excellence, always aiming for customer satisfaction, the professional development of our employees and the growth of the company.
Our headquarters are strategically located in Três Rios, Rio de Janeiro, and have 2,250 m² of built area. It has easy access to three of the largest capitals in the country: Rio de Janeiro, São Paulo, and Belo Horizonte.




Machining Center, CNC Lathe, Conventional Lathe, MIG/MAG/TIG Welding and Others.
We have the most modern equipment to meet your needs, D2000, D1250, D760, D560, D400, VLT 700L, Galaxy 30, Mazak, G240, G170, 35RV, 35D, NZ400-BT, ND325, 300IV, Surface Grinding, Cylindrical Grinding, Centerless Grinding, MIG/MAG/TIG Welding, Sandblasting Cabinet, Universal Milling Machine, Three-Dimensional Milling Machine, and Others.




To provide technical machining and service solutions, always striving to be a market benchmark and gain recognition. We operate with high standards of quality, commitment, and responsibility, consolidating our position as a company of excellence on the national stage.
To be among the best companies in our sector, recognized for excellence in service delivery and the manufacturing of machined parts for diverse industrial applications. We contribute to strengthening the national industry and to the sustainable development of society and the planet.
The values of ALT & Railteco guide all our actions and decisions, underpinning our purpose of developing products and services with excellence, ethics, and safety.
Our values are:
• Ethics and transparency
• Respect for life and people
• Respect for the environment
• Trust
• Integrity