CK0900-41 - Lincoln LFA 4.1 Stationary Fume Extraction Package 2HP 230V

Technical Overview: Lincoln LFA 4.1 Extraction System

For fabrication shops requiring a robust, high-static-pressure extraction solution, the Lincoln Electric LFA 4.1 Package (CK0900-41) delivers industrial-grade performance. This system is engineered for stationary applications where source capture is required over a wide working envelope. The package integrates the LFA 4.1 suction arm with a high-efficiency 2HP fan unit, operating on a 230V input supply. This configuration is optimized to overcome the static pressure losses inherent in flexible ducting, maintaining high face velocity at the hood.

Arm Mechanics and Reach

The LFA 4.1 arm provides a 4-meter (approx. 13.1 ft) working radius. It utilizes a hollow tube design with external adjustments and an internal support structure. This design minimizes airflow turbulence and pressure drop compared to arms with internal obstructions. The hood is equipped with a built-in throttle valve, allowing the operator to regulate airflow or close off the arm when not in use to conserve system pressure if connected to a central manifold (though this package includes a dedicated fan). The 360-degree swivel at the mounting base ensures full coverage of the bay.

Fan and Motor Specifications

The included fan is a 2HP (approx. 1.5 kW) centrifugal unit designed for direct mounting or wall mounting adjacent to the arm. The 230V specification ensures compatibility with standard industrial single-phase or specific three-phase lines (verify local wiring configuration). The impeller is balanced for smooth operation and designed to handle welding particulate without rapid fouling. The housing is constructed from heavy-gauge steel with a powder-coated finish for corrosion resistance.

Application Suitability

This system is ideal for MIG (GMAW), TIG (GTAW), and Stick (SMAW) welding processes. It effectively removes smoke, metal oxides, and shielding gases from the breathing zone. While the system is powerful, it is a source capture device; for heavy grinding applications, a spark arrestor (not always included) is recommended to prevent hot sparks from entering the fan housing. The wall-mount configuration is particularly advantageous in production cells where floor space is at a premium.