K1671-2 - Lincoln Electric EC 4 Fume Extraction Boom Extension 14ft

Technical Overview: Lincoln K1671-2 EC 4 Extension Crane

The Lincoln Electric K1671-2 EC 4 Extension Crane is a heavy-duty accessory designed to extend the effective range of fume extraction arms in industrial settings. With a total extension length of 14 feet (4 meters), this crane is specifically engineered for facilities where standard extraction arm lengths are insufficient to cover large workpieces or multi-station cells. It effectively bridges the gap between the filtration unit and the weld zone, ensuring optimal capture velocities are maintained even at extended distances.

Precision Engineering and Stability
A key technical advantage of the EC 4 is its unique hinge design. The unit utilizes a side-to-side hinge mechanism incorporating a spring-controlled lock. This feature addresses the common issue of boom drift, ensuring that the extension arm remains rigid and steady in the desired position. This stability is essential for maintaining consistent fume capture efficiency, particularly in dynamic welding environments where overhead positioning is required.

Comprehensive System Integration
The K1671-2 is supplied as a complete assembly kit, ready for integration into existing shop infrastructure. The package includes:

• Support Boom: Structural steel component providing the 14-foot reach.
• Mounting Plate: Heavy-duty plate for secure attachment to walls or columns.
• 8-inch Tubing: Large diameter ducting to minimize static pressure loss and maximize airflow.
• Flexible Hose: Connects the rigid tubing to the extraction arm or base unit, allowing for articulation.
• Mounting Brackets: All necessary hardware for assembly.

Applications and Compatibility
This extension crane is ideal for heavy fabrication, shipbuilding, and structural steel sectors where welding occurs across large surface areas. By mounting the extraction arm to the end of the EC 4 crane, operators gain a significantly larger semi-circular work envelope. The 8-inch diameter tubing ensures compatibility with high-volume extraction systems, preventing bottlenecks in airflow performance. The K1671-2 represents a robust solution for extending the versatility of Lincoln Electric fume extraction systems.