TECNA LINEAR ACTION SPOT WELDERS (4665N-4668N)

When a production process calls for reliable resistance spot welding with a straight vertical electrode movement, the TECNA 4665N-4668N range offers a practical solution for industrial applications. These pneumatic linear action spot welders are available in four configurations, with nominal power at 50% duty cycle from 35 to 50 kVA.

The right machine depends largely on the workpiece rather than power alone. The 4665N and 4666N provide a 400 mm arm depth, while the 4667N and 4668N extend this to 500 mm. The 35 kVA versions are the 4665N and 4667N; the 4666N and 4668N are rated at 50 kVA. This gives manufacturers scope to match the welder to the dimensions, access requirements and production conditions of the component.

With a linear-action welding head, the upper electrode travels vertically towards the lower electrode. For applications where the approach direction is important, this arrangement provides a straightforward way of positioning and clamping the components before the welding current is applied. It can be particularly useful when working with sheet-metal assemblies and components requiring consistent access to the weld area.

Machine usability is also important on a busy production floor. The column design provides a clear working area, while the pneumatic controls and compressed-air pressure gauge are positioned at the top of the machine for convenient access. The welding control is located at the front, allowing the operator to work with the machine settings without unnecessary movement around the equipment.

Heat management is another key consideration in resistance welding. On this TECNA range, the transformer, arms, electrodes and electrode holders are water cooled. Chrome-copper electrode holders can be installed straight or at an angle, giving greater freedom when setting up the welding area around different components.

Process control is handled by the TECNA TE101 microprocessor control. Where production data needs to be stored, the TE550 version includes a USB port for data recording. This is particularly relevant for processes where consistent welding parameters need to be maintained across repeated production cycles.

The pneumatic system uses a lubrication-free cylinder, eliminating oil mist generated by cylinder lubrication. A protected filter-regulator unit with pressure gauge is integrated into the machine. The two-stage electric foot pedal separates component clamping from weld activation: the operator can first position and clamp the parts and then trigger the welding cycle.

A second electric foot pedal can also be provided to call up another welding programme directly. This is useful when a single component requires different welding settings at different points in the production process.

For anyone specifying a resistance spot welding machine, the important question is therefore not simply how many kVA are required. Material and thickness, component dimensions, weld-point accessibility, electrode configuration, production volume and required electrode force all influence the appropriate machine setup.

ATS supplies TECNA welding machines and provides technical support when selecting the right configuration for the application. This means customers can discuss the welding process and machine requirements with a technical partner before choosing the equipment, as well as receive support after supply.

If you are evaluating a TECNA 4665N, 4666N, 4667N or 4668N linear action spot welder, contact A.T.S. Lamberti to discuss your application and identify the configuration that best suits your production requirements.