Since its inception, resistance welding has been TECNA's core business. This has allowed TECNA to become a leader in the design and production of the widest range of spot and projection welders, used in numerous different industrial sectors. With decades of experience, TECNA is also a trusted supplier of major players in the automotive and aerospace industries and all fields where resistance welding sees its application. TECNA welders are approved and certified by top car manufacturers worldwide.

The company's mission focuses on maintaining world leadership in the resistance welding industry. By revolutionizing the sector with continuous innovation in technology, processes, design and ergonomics. By anticipating the needs of our customers, providing solutions tailored to their needs. By focusing on automation and robotics.

One of the last innovations is the 3680 Industry, a resistance welding system controlled by a microprocessor, fully automatic, designed for industrial applications. The system features a new motorized suspension arm and the innovative 8692 gun, ensuring enhanced performance and precision. Additionally, it includes TECNA BOWDEN RETRACTOR. The welding control unit is equipped with a digital display with touch screen functionality, allowing the setting and monitoring of all welding parameters based on the tools used, as well as the type and thickness of the sheets to be welded. Furthermore, it provides a management archive for storing and reviewing welds performed, ensuring traceability and optimization of processes.

The BOWDEN RETRACTOR is a patented product of TECNA. Its installation on the 3680 is just one of its many possible applications.

The main advantages are:

• Decentralized positioning of the housing (i.e., not restricted to vertical installation)
• Easy installation, thanks to the Bowden sheath that protects the cable from damage
• Bowden extensions available in different lengths: 0.5 - 1 - 1.5 - 2 meters
• The Bowden extension allows the full stroke of the Retractor to be used (1,600 - 2,000 - 2,500 mm)