TPT January 2025

TECHNOLOGY

Italian tube and pipe welding machines support the HVAC sector in the US

The initial contact between the two companies dates back to 2018, facilitated through collaboration with another Italian company. This led to the supply of welding machines for stainless steel components for flue pipes, with thickness of 1mm and leakproof welds tested with liquid penetrants. The first machine, delivered in 2019, exceeded expectations, prompting the US company to purchase ten additional machines over the next four years, with two machines deployed to each of its plants. In 2024, the customer had to face a new challenge: the existing machines were unsuitable for welding a new type of galvanised or aluminiumised sheet metal while meeting strict quality standards. Cemsa responded promptly with an innovative solution: the MRT F 2WR welding machine, specifically designed to process galvanised sheet metal with thickness of 1mm. This technology enables the welding of segmented elbows made of zinc or aluminium-zinc with variable diameters ranging from 250mm to 800mm (10" to 30") and thicknesses from 0.5mm to 1mm (24g to 18g). Thanks to a system that implies two copper wires in independent circuits to protect the welding wheels from the zinc impregnation effect and such to reduce the risks of roller breakage, results of the highest quality and productivity are guaranteed. The MRT F 2WR has proven effective not only in the HVAC sector, but also for automotive applications, such as welding fuel tanks. Liquid penetrant testing has certified perfectly sealed welds. Additionally, the integrated inverter allows for energy savings of up to 50 per cent compared to traditional solutions, making the production process more sustainable and eco-friendly. Collaboration with the US customer continues, with negotiations underway for the supply of four more machines, which will enable all five facilities to leverage Cemsa’s most advanced technologies.

CEMSA International is an Italian company that specialises in the design and manufacture of welding machines. It is known for delivering innovative and high quality solutions across various industrial sectors. For the past six years, a US-based multi-national in the heating, ventilation and air conditioning (HVAC) sector, with five production plants located in California, North Carolina, Oklahoma, Florida, and Pennsylvania, has relied on Cemsa to optimise the welding of its components.

Cemsa offers gas supplied welding machines for stainless steel components for flue pipes

Cemsa International Srl www.cemsa.it

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JANUARY 2025