K4259-5 - Lincoln Prism Mobile One-Pak Fume Extractor with 13ft Arm & Arc Sensor (MERV 14)

Technical Overview of the Lincoln Prism® Mobile One-Pak® (K4259-5)

The Lincoln Electric Prism® Mobile One-Pak® (K4259-5) is a comprehensive low-vacuum fume extraction system engineered for light to medium-duty welding applications. This unit is designed to provide a mobile, flexible solution for filtration in manufacturing environments where fixed ductwork is impractical. The system delivers a substantial airflow capacity of 750 CFM (Standard Cubic Feet per Minute), driven by a 120V, single-phase motor drawing 6.1 Amps. This specific configuration includes a 13-foot flexible extraction arm equipped with an Arc Sensor and Lamp Kit, enabling automatic start/stop functionality based on arc initiation.

At the core of the filtration system is a MERV 14 rated filter with a surface area of 538 square feet. This large surface area significantly increases the particulate holding capacity, thereby extending the interval between filter replacements and reducing operational costs. The unit also features an internal spark arrestor which functions as a pre-filter, capturing larger particulates and preventing sparks from reaching the main filter media. A color-coded filter status indicator is integrated into the housing, providing immediate visual feedback on filter saturation levels to ensure timely maintenance.

The Prism® Mobile is built for industrial durability and ease of movement. It rests on a chassis equipped with front swivel casters and large rear wheels, allowing operators to easily position the unit near the weld zone. The 13-foot arm offers 360-degree rotation and optimal reach for variable workstation layouts. The inclusion of the Arc Sensor/Lamp Kit not only improves visibility at the weld joint but also automates the extraction process, ensuring the fan operates only when welding is occurring, which conserves energy and minimizes background noise.

System Specifications and Compliance

The K4259-5 package is a "One-Pak" solution, meaning it ships with the base unit, the extraction arm, the filter, and the sensor kit pre-configured for rapid deployment. The system is designed for use in general fabrication, maintenance and repair, and educational facilities. It is important to note that while effective for welding fumes, this low-vacuum system is not suitable for cutting or arc gouging operations due to the high volume of particulate and sparks those processes generate.