Zanini Renk will become an authorised service partner for Moventas in Brazil.
Moventas and Zanini will provide spare parts, onsite and uptower support, and workshop servicing to most types of wind turbine gearbox.
Zanini Renk's main factory is located in Cravinhos, Sao Paulo, and it runs a service hub in northeast Brazil, where much of the country's wind capacity is installed, Moventas said.
Mauro Cardoso, Zanini CEO, said the deal represents a breakthrough for Brazil's wind industry.
The announcement was made at Brazil Windpower 2015, taking place in Sao Paulo, 1-3 September 2015.
In May, Moventas opened a gearbox workshop in Minnesota, US, its fourth in North America.