Lincoln Electric Flextec® 500X/ Flex Feed® 74HT One-Pak®

Product Description

Powerful Multi-Process Welding System

The Lincoln Electric Flextec® 500X/ Flex Feed® 74HT One-Pak® (K3612-3) is a comprehensive multi-process welding system designed for heavy-duty applications. It delivers up to 500 amps of welding power using advanced inverter technology, making it suitable for a variety of environments including shipyards, construction sites, and fabrication shops.

Highlights

• Multi-Process Capability: Supports MIG, Stick, TIG, and Flux-Cored welding
• Basic Pulse MIG Capability: Standard on the Flextec 500X for carbon steel, stainless steel, aluminum, and metalcore electrodes
• CrossLinc® Technology: Allows remote control without extra cables
• Rugged Design: IP23 rating and Desert Duty® rated for harsh environments
• Flex Feed 74HT Features: High torque, 4-roll feeder with remote voltage control and Carbon Arc Gouging stud

Key Features

• Simple Interface: For ease of use in various applications
• Reliable Performance: Durable construction with trayed and potted PC boards for environmental protection
• Flexible Power Source: Compatible with all 42VAC wire feeders for MIG and Flux-Cored welding
• Optimized Stick Welding: Suitable for both cellulosic and low hydrogen electrodes
• Touch-start TIG: For easy, contamination-free starts without high frequency

Industries

• Shipyards
• Construction Sites
• Fabrication Shops
• Heavy Manufacturing
• Industrial Maintenance

Benefits of the Flextec® 500X/ Flex Feed® 74HT One-Pak®

• Enhanced Productivity: Full functionality without control cables increases arc time
• Improved Safety: Reduces jobsite clutter by eliminating extra cables
• Versatile Applications: Suitable for indoor and outdoor heavy-duty applications
• Advanced Process Control: Flex Feed 74HT offers remote voltage control and Carbon Arc Gouging capability
• Convenience: One-Pak includes cables, gun, and regulator in one part number

• Specifications – Flextec® 500X/ Flex Feed® 74HT One-Pak® #K3612-3

  Machines Processes	Stick (SMAW) Gouging (CAC-A) Flux-Cored (FCAW) TIG (GTAW) MIG (GMAW) Flux-Cored Self-Shielded (FCAW-S) Flux-Cored Gas-Shielded (FCAW-G)
  Max Rating	500A
  Output Range by Mode	5-500 A
  Wire Feeder Supply Voltage	42VAC
  Amphenol Pins (type of connector)	5 14 12
  Work Lead Connector Type	Lug
  Number of driven rolls	4 rolls
  Feeder type	Bench
  Configuration	Single
  Max spool diameter	Drum
  Communication Technology	analog
  UI type	Simple
  Max Rated Output Capable	600A
  Max Wire Diameter (Solid)	3/32 in (2.4 mm)
  Max Wire Diameter (Cored)	0.120 in (3 mm)
  Max WFS	800IPM
  Feedhead Configuration	Single
  Wire Configuration	Single
  Accesories Communication Connector Type	none
  Gun Bushing	Tweco #2-#4
  Max Spool Size (lbs)	60
  Max Spool Size (kg)	30
  Wire Feeders Processes	MIG
  Safety Listing CSA	Yes
  Safety Listing UL	Yes
  Input Voltage	460,380/400/415,575
  Input Current	39/31/31,33/27/27
  Input Phase	3
  Input Power	380/460/575/3/50/60
  Rated Output	500A/40V/60%,450A/38V/100%
  Typical Application	Cross Country Pipeline Construction & Field Erection General Fabrication Heavy Equipment Heavy Fabrication Structural Fabrication
  Warranty	3 Years

  SHIPPING DIMENSIONS
  Height:	18.80 Inches
  Width:	14.00 Inches
  Length:	27.50 Inches
  Weight:	292 Lb(s) 9 Oz

  • Flex Feed 74 HT Product Info
  • Flextec 500X Product Info
  • CrossLinc Technology Brochure