Welders Summer Sale

New Welders Rewards! | Earn points on every purchase, unlock exclusive perks, and score serious savings.

Up to $1,200 back on select machines & equipment

Buy Now, Pay Later. Easily apply for low payments over 6, 18 or 24 months
Payment Options
American Express Discover Visa MasterCard PayPal PayPal Credit Google Pay Apple Pay Venmo

Welder Supply Company Summer Sale

FREE Gifts $50+ | FREE Shipping*

*Lower 48 States Only

$50.00
T-Shirt + Stickers
$50.00 T-Shirt + Stickers
$1,750.00
Omaha Steaks Elite Package
$1,750.00 Omaha Steaks Elite Package
$2,000.00
Omaha Steaks Gold Package
$2,000.00 Omaha Steaks Gold Package
$2,500.00
Omaha Steaks Grand Package
$2,500.00 Omaha Steaks Grand Package
$3,000.00
Omaha Steaks Deluxe Package
$3,000.00 Omaha Steaks Deluxe Package
$3,500.00
Omaha Steaks Premium Package
$3,500.00 Omaha Steaks Premium Package
$4,000.00
Omaha Steaks Platinum Package
$4,000.00 Omaha Steaks Platinum Package
$4,500.00
Omaha Steaks Diamond Package
$4,500.00 Omaha Steaks Diamond Package

Ships Free To Lower 48 States

Lincoln Electric Aspect® 375 AC/DC TIG Welder Ready-Pak® #K3946-2

Part Number: K3946-2
UPC: 15082592329
$16,239.99 + Free Shipping
Qualifies for Welder's Summer Sale

Welding type:

TIG

TIG

Power supply:

220V Single Phase

220V Single Phase

220V 3 Phase

220V 3 Phase

460V

460V

  • AC/DC TIG welderAC/DC TIG Welding
  • Multi-voltage input welderMulti-Voltage Input
  • Multi-phase welderMulti-Phase
  • Lincoln Electric hassle-free warrantyHassle-Free Warranty

Lincoln Aspect® 375 AC/DC TIG Welder Ready-Pak® #K3946-2

Upgraded AC/DC TIG Welder The Lincoln Electric Aspect® 375 AC/DC TIG Welder Ready-Pak® is expertly designed and upgraded with Lincoln Electric patented technology. This machine is a heavy-duty TIG package made for professional welders. It is compatible with an input power between 200-600V, both single-phase and 3-phase. The Aspect 375 is rated for 3-phase output at 330 amps with a 40% duty cycle and a 60% duty cycle at 300 amps. Make accurate and efficient AC/DC TIG welds every time with the Aspect 375. It is the perfect welding machine for serious welders that are expected to produce superior results. Great for a variety of industries from shipbuilding and repair welding, to marine applications and general fabrication.

Lincoln Electric Aspect® 375 AC/DC TIG Welder Ready-Pak® #K3946-2Features of the Aspect® 375

  • Effortless arc control for the smoothest welds
  • AC Auto-Balance® makes it simple by automatically providing the optimal mix of cleaning and penetration on aluminum
  • Intellistart™ Technology provides soft starts on thin materials and hotter starts required on thicker materials
  • Customization when You need it. - Manage AC frequency, balance and offset to modify arc profile, cleaning action or penetration

AUTO OR MANUAL: THE CHOICE IS YOURS

Effortless arc control

Extremely fast arc response and stability for the smoothest and most efficient weld possible.

Simplicity when you want it

Activate Intellistart™ technology to automatically provide for softer starts and minimal distortion on thinner materials and hotter starts required for thicker materials. Optional AC Auto Balance® technology offers simplicity by automatically providing the optimal mix of cleaning and penetration when welding aluminum.

Customization when you need it

AC Wave Shape control enables you to customize the arc for critical aluminum welding requiring:

  • A higher degree of penetration on thicker materials.
  • Increased cleaning action in breaking through heavy oxide layers.
  • Narrower arc profile enhancing control around corners and other tight configurations.

What's Included

  • CoolArc 47 Water Cooling System (K3950-1)
  • Inverter Cart (K3949-1) 20H-320-25R Water Cooled
  • TIG Torch with 25 ft. (7.6m) cable assembly (K4168-2)
  • Zippered Torch Cable Cover 25 ft. (7.6 m) (K918-4)
  • Twist Mate™ Torch Adapter
  • Water-Cooled (K1622-5) Parts Kit for 20H-320-25R
  • Water Cooled TIG Torch contains: long back cap
  • 1/16 in, 3/32 in, 1/8 in collets
  • 1/16 in, 3/32 in, 1/8 in collet bodies
  • 1/16 in, 3/32 in, 1/8 in 2% Ceriated tungsten
  • Three Alumina nozzles (5/16 in, 3/8 in, 7/16 in orifices) (KP510)
  • Two Gallons of Low Conductivity Coolant (KP4159-1) Foot Amptrol™ with 25 ft. (7.6 m) cable assembly (K870)
  • Gas Regulator/Flowmeter and 10 ft. (3.0 m) Hose Kit (3100211)
  • 15 ft Work Lead Assembly (K1803-3)
  • 10 ft (3m) input power cord
Shop all TIG welding machines and TIG welding helmets available online from Welders Supply.
Lincoln Aspect® 375 AC/DC Ready-Pak® #K3946-2 Specifications
Input power

200-600V

3 Phase: 60% Duty Cycle: 29/26/15/12/10, 40% Duty Cycle 27/24/14/11/9

1 Phase: 60% Duty Cycle: 34/31/NA/NA/NA, 40% Duty Cycle: 32/29/NA/NA/NA

50/60 Hz

1-Phase, 3-Phase

Output range

3 Phase: 2-375A, 1 Phase: 2-250A

Rated output 3 Phase: 330A/40%, 300A/60% 1 Phase: 240A/40%, 225A/60%
Welding processes AC/DC TIG
Typical applications Automotive
Brewery
General Fabrication
Maintenance & Repair
Marine Applications
Marine Fabrication & Repair
Pharmaceutical Equipment
Repair Welding
Shipbuilding

SHIPPING DIMENSIONS

Height: 47.00 Inches
Width: 23.00 Inches
Length: 45.00 Inches
Weight: 235 Lb(s) 0 Oz

Product Questions and Answers

Have a question about this product? Submit your question using the form below

Related Products

Lincoln Electric AC/DC 225/125 Stick Welder #K1297 Lincoln Electric AC/DC 225/125 Stick Welder (220V 1PH) #K1297 12 purchased
Save $59.60
$1,133.20
$1,192.80
Free Shipping
Lincoln Electric Aspect 375 AC/DC TIG Welder #K3945-1 Lincoln Electric Aspect® 375 AC/DC TIG Welder (200-600V 1/3PH) #K3945-1
$11,109.99
Free Shipping
Lincoln Electric Bulldog 5500 Engine Driven Welder (Kohler) #K2708-2 Lincoln Electric Bulldog 5500 Welder/Generator w/ Kohler® Gas Engine (4,000W) #K2708-2 1 purchased
Save $208.80
$3,968.10
$4,176.90
Free Shipping
Lincoln Electric Idealarc 250 Stick Welder #K1053-8 Lincoln Electric Idealarc 250 AC/DC Stick Welder (230-575V 1PH) #K1053-8 1 purchased
$5,949.99
Free Shipping
Lincoln Electric Idealarc 250 Stick Welder with PFC #K1053-9 Lincoln Electric Idealarc 250 AC/DC Stick Welder w/ PFC (230-575V 1PH) #K1053-9
$6,059.99
Free Shipping
Lincoln Electric Ranger 305 LPG  Engine Driven Welder (Kohler) One-Pak #K3430-2 Lincoln Electric Lincoln Electric Ranger 305 LPG Engine-Driven Welder (Kohler) One-Pak (K3430-2) 1 purchased
Save $71.15
$12,618.10
$12,689.25
Free Shipping
Lincoln Electric Ranger 305 LPG Engine Driven Welder (Kohler) #K2937-1 Lincoln Electric Lincoln Electric Ranger® 305 LPG Engine Driven Welder (Kohler®) K2937-1 1 purchased
$11,459.99
Free Shipping
Lincoln Electric Ranger 225 Engine Driven Welder (Kohler) #K2857-1 Lincoln Ranger 225 Enginge Driven Welder (Kohler®) - K2857-1 Lincoln Electric Lincoln Ranger 225 Enginge Driven Welder (Kohler®) - K2857-1 9 purchased
$6,849.99
Free Shipping
Lincoln Electric POWER MIG 360MP Multi-Process Welder #K4467-1 Lincoln Electric Power MIG 360MP Multi-Process Welder (208-575V 1PH) #K4467-1
$9,099.99
Free Shipping
Lincoln Electric Ranger 305 G EFI Engine Driven Welder (Kohler) #K3928-1 Lincoln Electric Ranger 305 G EFI Welder/Generator w/ Kohler® Gas Engine (9,500W) #K3928-1 1 purchased
$10,045.00
Free Shipping
Lincoln Electric Ranger 330MPX Engine Driven Welder (Kohler) #K3459-1 Ranger 330MPX Welder/Generator w/ Kohler® Gas Engine (10,000W) #K3459-1 Lincoln Electric Ranger 330MPX Welder/Generator w/ Kohler® Gas Engine (10,000W) #K3459-1 2 purchased
$9,849.99
Free Shipping
Lincoln Electric Ranger 260MPX Engine Driven Welder (Kohler) #K3458-1 Ranger® 260MPX™ Welder/Generator w/ Kohler® Gas Engine (9,500W) #K3458-1 Lincoln Electric Ranger® 260MPX™ Welder/Generator w/ Kohler® Gas Engine (9,500W) #K3458-1 2 purchased
$8,129.99
Free Shipping
Lincoln Electric Ranger 330MPX EFI Engine Driven Welder (Kohler) #K4779-1 Ranger® 330MPX™ EFI Welder/Generator w/ Kohler® Gas Engine (10,000W) #K4779-1 Lincoln Electric Ranger® 330MPX™ EFI Welder/Generator w/ Kohler® Gas Engine (10,000W) #K4779-1 1 purchased
$10,689.99
Free Shipping

Competitive Products

Miller Big Blue 600 PRO (Kubota) Deluxe w/ ArcReach #907737001 Miller Electric Big Blue 600 PRO Deluxe w/ ArcReach #907737001
Save $7,417.00
$47,876.00
$55,293.00
Free Shipping
What is the best welder Miller Big Blue® 600 Air Pak quick shipping Miller Electric Big Blue® 600 Air Pak #907750
(1)
Save $10,133.00
$65,404.00
$75,537.00
Free Shipping
Best quality for cheap welding Miller Big Blue® 600 Air Pak™ Truck Mount Spec #907750001 fastest shipping Miller Electric Big Blue® 600 Air Pak™ Truck Mount Spec #907750001
(1)
Save $10,541.00
$68,041.00
$78,582.00
Free Shipping
Miller Big Blue 800 Duo Air Pak 907752001 FREE helmet FREE gloves online at Welders Supply Miller Electric Big Blue® 800 Duo Air Pak™ Truck Mount Spec #907752001
(2)
Save $11,081.00
$71,520.00
$82,601.00
Free Shipping
Welder machine Miller Big Blue® 800 Duo Pro heavy duty Miller Electric Big Blue® 800 Duo Pro #907751
Save $8,164.00
$52,693.00
$60,857.00
Free Shipping
Miller Bobcat 200 Air Pak Diesel #907760 Miller Electric Miller Bobcat™ 200 Air Pak™ Diesel #907760
(1)
4 purchased
Save $4,031.00
$26,019.00
$30,050.00
Free Shipping
Miller XMT 350 Field Pro Arc Reach 6 Pack Rack #907740 Miller Electric XMT® 350 FieldPro™ 6-Pack Rack fused 460/575 V Tweco #907740
$60,050.00
Free Shipping
MillerXMT350FieldProRack#907741 Miller Electric XMT® 350 FieldPro™ with Polarity Reversing 6-Pack Rack fused 460/575 V Tweco #907741
Save $10,585.00
$68,319.00
$78,904.00
Free Shipping
Miller Big Blue 500 Pro (Kubota) 907735 Miller Electric Big Blue 500 Pro (Kubota) #907736
Save $6,675.00
$43,082.00
$49,757.00
Free Shipping
Miller Big Blue 600 Pro (Kubota) High-Power Welder-Generator #907737 Miller Electric Big Blue 600 (Kubota) Industrial Engine-Driven Welder #907737
(1)
Save $7,376.00
$47,607.00
$54,983.00
Free Shipping
Miller Big Blue 600 Pro Arc ReachWIC Truck Specific #907737004 Miller Electric BIG BLUE 600 PRO (KUBOTA) TRUCK #907737004
Save $8,049.00
$51,950.00
$59,999.00
Free Shipping
Big Blue® 400 Pro (Kubota) #907732 Miller Electric Big Blue® 400 Pro (Kubota) Engine-Driven Welder #907732
(3)
10 purchased
Save $3,826.00
$24,705.00
$28,531.00
Free Shipping
Miller Big Blue 500 Pro Deluxe w/ ArcReach 907736001 Miller Electric Big Blue® 500 Pro Deluxe w/ ArcReach® #907736001 1 purchased
Save $6,726.00
$43,416.00
$50,142.00
Free Shipping
Professional welder Big Blue 800 Duo Air Pak elite Miller Electric Big Blue® 800 Duo Air Pak #907752
(1)
Save $10,683.00
$68,956.00
$79,639.00
Free Shipping
Miller CST™ 282 8-Pack Rack 208-575 V, Tweco® #907812 Miller Electric CST 282 8-Pack Rack 208-575 V, Tweco #907812
Save $7,116.00
$45,933.00
$53,049.00
Free Shipping
Build with Blue Rebate on Millermatic 211 MIG welder # 907614
$500 MFR Rebate
Miller Electric Miller Millermatic 211 Mig Welder w/ Autoset #907614
(8)
3792 purchased
Save $525.68
$1,975.00
$2,500.68
Free Shipping
Miller Multimatic 220 AC/DC Multiprocess welder #907757 - Included accessories Miller Electric Miller Multimatic 220 AC/DC Multiprocess Welder (907757)
(4)
735 purchased
Save $1,141.53
$4,285.00
$5,426.53
Free Shipping
Professional mobile welder Miller SubArc DC 650 Digital Portable Welding System quick shipping Miller Electric SubArc DC 650 Digital Portable Welding System #951675
Save $15,790.00
$101,921.00
$117,711.00
Free Shipping
Miller XMT® 350 FieldPro™ Narrow 4-Pack Rack 907739 Miller Electric XMT® 350 FieldPro™ Narrow 4-Pack Rack #907739
$42,489.00
Free Shipping
Miller XMT 350 FieldPro ArcReach 4 Pack Rack #907742 Side View Miller Electric XMT® 350 FieldPro™ with Polarity Reversing Narrow 4-Pack Rack fused 460/575 V Tweco #907742
Save $7,426.00
$47,928.00
$55,354.00
Free Shipping

Be the first to know about upcoming specials!