{"product_id":"lincoln-magnum-pro-al-fc-450-water-cooled-rear-trigger-mig-welding-gun","title":"Lincoln Magnum PRO AL FC 450 Water-Cooled Rear Trigger MIG Welding Gun","description":"\u003cp\u003eThe Lincoln Electric Magnum PRO AL FC 450 Water-Cooled Rear Trigger MIG Welding Gun is a heavy-duty, 450-amp welding gun optimized for sustained high-duty-cycle MIG\/GMAW aluminum and flux-cored (FCAW) production welding. Water cooling allows the gun body and cable to operate at temperatures that would exceed the limits of air-cooled designs during high-amperage, long-arc-on production cycles. The rear trigger placement provides natural hand positioning for flat, horizontal, and forehand welding applications, reducing operator fatigue during extended production shifts.\u003c\/p\u003e\n\u003cp\u003eWith a 12-pin Lincoln Electric feeder connection, cable lengths from 15 ft to 50 ft, and replaceable contact tips, nozzles, and liners, the Magnum PRO AL FC 450 RT combines high-amperage capacity with the field-maintainability and feeder compatibility that professional fabrication operations require. This gun is the water-cooled, rear trigger counterpart to the front trigger 450 model, allowing shops to select the trigger configuration that matches operator preference and welding position demands without sacrificing amperage capability.\u003c\/p\u003e\n\u003ch2\u003eAvailable Configurations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eK4796-1\u003c\/strong\u003e – Magnum PRO AL FC 450 Water-Cooled, 12-Pin, Rear Trigger, 15 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK4796-2\u003c\/strong\u003e – Magnum PRO AL FC 450 Water-Cooled, 12-Pin, Rear Trigger, 25 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK4796-3\u003c\/strong\u003e – Magnum PRO AL FC 450 Water-Cooled, 12-Pin, Rear Trigger, 35 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK4796-4\u003c\/strong\u003e – Magnum PRO AL FC 450 Water-Cooled, 12-Pin, Rear Trigger, 50 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e450-amp water-cooled rating\u003c\/strong\u003e — enables sustained production welding at high duty cycles beyond air-cooled gun limits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear trigger ergonomics\u003c\/strong\u003e — natural hand position for flat, horizontal, and forehand production welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-pin connection\u003c\/strong\u003e — factory-matched to Lincoln Electric wire feeders and power sources\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum and flux-cored wire capable\u003c\/strong\u003e — dual-process versatility at high-amperage production levels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour cable length options: 15 ft, 25 ft, 35 ft, 50 ft\u003c\/strong\u003e — configurable for varied production cell layouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater cooling circuit\u003c\/strong\u003e — maintains safe gun and cable operating temperatures during sustained high-amperage welding\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaceable consumables\u003c\/strong\u003e — extended service life through in-field tip, nozzle, and liner replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-deposition aluminum MIG\/GMAW in flat and horizontal position production environments\u003c\/li\u003e\n\u003cli\u003eHeavy FCAW structural welding with sustained duty cycle requirements\u003c\/li\u003e\n\u003cli\u003eShipbuilding, offshore, and heavy transportation manufacturing with high-amperage aluminum welding\u003c\/li\u003e\n\u003cli\u003ePressure vessel and boiler fabrication requiring long arc-on time at 450A\u003c\/li\u003e\n\u003cli\u003eAutomotive and rail manufacturing with high-cycle production MIG\/GMAW\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Choose Lincoln Electric Magnum PRO AL FC 450 Water-Cooled Rear Trigger\u003c\/h2\u003e\n\u003cp\u003eThe Lincoln Electric Magnum PRO AL FC 450 Water-Cooled Rear Trigger MIG gun provides 450-amp high-duty-cycle welding performance with rear trigger ergonomics for operators who prefer natural hand positioning in flat and horizontal production welding. Water cooling, 12-pin feeder compatibility, multiple cable lengths, and field-replaceable consumables make the Magnum PRO AL FC 450 RT the heavy-duty MIG gun solution for the most demanding aluminum GMAW and FCAW production environments.\u003c\/p\u003e","brand":"Lincoln Electric","offers":[{"title":"15 ft","offer_id":43639507058839,"sku":"K4796-1","price":4574.64,"currency_code":"USD","in_stock":true},{"title":"35 ft","offer_id":43639507157143,"sku":"K4796-3","price":5284.16,"currency_code":"USD","in_stock":true},{"title":"25 ft","offer_id":43639507124375,"sku":"K4796-2","price":4939.2,"currency_code":"USD","in_stock":true},{"title":"50 ft","offer_id":43639507091607,"sku":"K4796-4","price":5885.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/7140\/4695\/files\/lincoln-magnum-pro-al-fc-450-water-12p-rt-15-ft-k4796-1-lincoln-electric-1.jpg?v=1746611225","url":"https:\/\/weldingmart.com\/products\/lincoln-magnum-pro-al-fc-450-water-cooled-rear-trigger-mig-welding-gun","provider":"WeldingMart.com","version":"1.0","type":"link"}