Comparison of Welding Extruders with Self-Contained Air Supply and External Air Supply

Welding Extruder with Self-Contained Air Supply

Advantages:

• Mobility: Independent of an external air supply – ideal for work in hard-to-reach areas or on boat hulls.

• Easy handling: No external air hose required, which facilitates maneuverability.

• Compact design: All components are integrated into one device, simplifying transport and storage.

• Quick setup: No additional connections required – only a 230V power connection.

Disadvantages:

• Higher weight: Usually heavier than models with external air supply due to the built-in blower motor.

• Increased maintenance: The internal air generator may require additional maintenance.

Welding Extruder with External Air Supply (external air feed)

Advantages:

• Lower weight of the extruder: As the blower is not integrated, the handheld device is lighter and can be used with less fatigue.

• Longer lifespan: The extruder itself is subject to less wear as the blower is operated separately.

Disadvantages:

• Dependence on external air supply: An additional air source with dry and oil-free air is absolutely necessary (e.g., compressor or separate blower).

• Limited mobility: Air hoses can restrict freedom of movement.

• Greater space requirement: The external blower needs space in the workshop or on board.

• More complex handling: Operation requires coordinated control of multiple components.

Conclusion for the Professional User

The choice between self-contained and external air supply depends largely on the specific requirements:

• For mobile applications or limited space, welding extruders with self-contained air supply are more suitable as they are more flexible to use.

• For stationary work with high performance requirements, models with external air supply offer better welding results and more ergonomic use.

Overview Matrix of the Extruders