The Austrian machinery manufacturer DTEC GmbH has just delivered its first laser welding systems to India. With this equipment, the companies EMMVEE Solar Systems Pvt. Ltd. in Bangalore and Jain Irrigation Systems Ltd. in Mumbai can now manufacture solar absorbers from different materials and in different sizes. "The systems are maintenance-free and have a CNC programming system as well as a remote maintenance system from Siemens", says DTEC director Michael Dietl.
The machines can weld meander coils from both sides. DTEC says it has a patent for the technology, which is said to improve capacity by 5 – 6 % with 2 m² collectors. "The systems have a modular design and can be extended to be fully automated", explains Dietl. To double the production capacity of the units one would simply need to integrate a second laser source. DTEC provides training for the employees of the collector manufacturers at its headquarters in Spital am Pyhrn and on-site.