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The Miller / Bernard LAD3A-15 is a 15-foot front-loading MIG welding liner assembly engineered for the AccuLock™ S consumable system. It establishes a continuous wire-feed path to minimize wire-feed malfunctions such as bird-nesting and arc instability by ensuring concentric alignment between the power pin and the contact tip.
Features
Front-load design: Allows liner replacement from the front of the gun without removing the torch from the wire feeder
Front-locking mechanism: Secures the liner at the front and requires trimming flush with the power pin at the rear
Concentric alignment: Liner lock aligns the conduit with the contact tip and power pin to reduce wire drag
Consumable Longevity: Reduces friction and burnbacks to extend contact tip service life by 2–3x
Mechanical Integrity: Monocoil construction provides flexibility and prevents kinking during wire transition
Measurement-Free Installation: Eliminates the need for precise manual measurements during trimming
Specifications
Manufacturer Part Number (MPN): LAD3A-15
Manufacturer: ITW (Illinois Tool Works) / Bernard Welding
Brand: Miller / Bernard
Consumable System: AccuLock™ S
Total Length: 15 feet (4.57 metres)
Wire Size Compatibility: 0.035" to 0.045" (0.9 mm to 1.2 mm)
Liner Type: Front-load, Conventional Dished
Visual Identification: Color-coded White
Maximum Current Rating: 250A
Primary Material: High-carbon music wire
Mechanical Structure: Monocoil steel construction
Coating/Finish: Friction-reduction feed coating
Applications
Gun Compatibility: Bernard BTB Semi-Automatic MIG Guns
Gun Compatibility: Legacy Q-Gun™, S-Gun™, and T-Gun™ Series
Gun Compatibility: TGX™ and FILTAIR® Fume Extraction Guns
Gun Compatibility: Miller MDX-250 MIG Guns (AccuLock S series)
Required Consumables: AccuLock S Diffusers (D-A1, D-A2, DS-A1, DS-A2)
