Worldwide technical support

Gränges’ product developers and technicians are represented throughout Asia, Europe and Americas, offering advanced technical support to customers and performing a wide range of services. This includes prototype brazing, aluminium braze simulations, brazeability tests, ­sagging tests, filler flow tests, advanced metallurgical examinations, as well as accelerated corrosion tests such as Neutral Salt Spray Test (NSS), Cyclic Corrosion Test (CCT) and Sea Water Acetic Acid Test (SWAAT), enabling Gränges to offer tailored and optimized aluminium products.

To support this work, Gränges has an application centre that can replicate the customers’ forming and brazing processes. The centre, located in Shanghai, is also ideal for testing small units of custom-designed heat exchangers. To explore the applications of brazed heat exchangers within non-automotive air-conditioning and other industries, Gränges builds competence within heat exchanger prototype design, optimization, and performance testing.