U4170H02 - Daihen Style .045 MIG Gun Liner - 3 Meter (10 ft) Replacement

Industrial Grade Daihen U4170H02 Liner Assembly

The Daihen U4170H02 Liner Assembly is a critical component for maintaining the efficiency and reliability of Daihen MIG welding systems. Designed specifically for use with 0.045-inch (1.2mm) welding wire, this liner ensures that the consumable wire is guided smoothly from the wire feeder through the torch cable to the contact tip. In industrial environments, particularly those utilizing Daihen's renowned robotic welding cells, the integrity of the liner is paramount. A compromised liner can lead to significant downtime, production halts, and quality control issues due to erratic arc starts or inconsistent weld bead profiles.

This assembly measures 3 meters (approximately 10 feet) in length, making it the standard fit for many common Daihen torch configurations. It is manufactured from high-quality steel coil, engineered to provide the optimal balance between flexibility and rigidity. This construction minimizes friction, which is the enemy of smooth wire feeding. By reducing drag, the U4170H02 liner alleviates strain on the wire feed motor and drive rolls, thereby prolonging the lifespan of the entire feeding mechanism. For facility managers and procurement specialists, stocking genuine or high-quality aftermarket replacements like the U4170H02 is a proactive measure to ensure continuous operation.

Regular maintenance of MIG guns involves inspecting and replacing the liner. Over time, liners accumulate copper dust, dirt, and debris from the shop floor, which can clog the internal path. Additionally, the constant friction of the wire can wear grooves into the liner wall, leading to micro-arcing inside the cable. Replacing the liner with this specific Daihen-compatible model restores the system to factory specifications. It is compatible with a range of Daihen manual and robotic torches, ensuring versatility across your equipment fleet. Trust in the precision engineering of this component to maintain the high standards required in modern fabrication and manufacturing sectors.

Key Industrial Benefits:

• Compatibility: Precision-fit for Daihen systems to prevent gas loss or wire misalignment.


• Durability: Resists kinking and crushing in rugged industrial environments.


• Performance: Maintains consistent wire stick-out and arc stability.