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MODEL : WELDMAX 164i     PRODUCT # : 880396

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Sale Price: $1,207.33

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Recommended Areas Of Use

  • Welding Repair
  • Motorsports/ Automotive
  • Contstruction/HVAC
  • Commercial maintenance
  • Fabrication/machine shops

What’s included

  • Main Unit with 14ft. Plasma torch and 14ft. TIG torch
  • Stick Holder and Ground Clamp
  • Argon Regulator and Water Separator
  • Foot Pedal
  • Starter Kit Consumables
  • TIG Collets and TIG Shield Cups
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Watch The Set-up and Performance


Multi-Process Convenience

The LONGEVITY WeldMax 164i is a first to market multi-process welder that allows the user to DC TIG/STICK
and Plasma Cut all from one portable machine. The WeldMax 164i combines three processes into one with a 160amp DC TIG Welder, a 140amp STICK Welder, and 40amp Pilot Arc Plasma Cutter with the flip of a switch. – making it the perfect model for the fabricator! 

Thermal Overload Protection

 LONGEVITY has included thermal overload protection
which informs the user when the duty cycle has been
exceeded shutting down the unit in a safe matter until it
has been cooled to adequate temperatures to proceed

Efficient Inverter Technology

With inverter technology, LONGEVITY has once again
revolutionized the industry by producing a portable, yet
powerful machine that can be operated with a generator,
perfect for the ON-THE-GO welding. Inverter technology
emphasizes portability, yet the efficiency and reliability of
the Soft Switching components allows for the ultimate
welding experience.

High Frequency TIG Start

The WeldMax 164i has an easy to use DC TIG function that will allow you to weld all exotic metals except aluminum. Easy to set and easy to use, you do not have to scratch start the tungsten to strike an arc. The high frequency TIG start is an excellent option for beginners and professionals

Dual Voltage (110v/220v)

Not only is it portable, but you are able to operate the
WeldMax 164i on 110 or 220 volts. Simply select the
desired plug, and the machine will auto detect the input
allowing you to weld at the shop or on the go! Did we
mention these units are generator friendly?

Pilot Arc Plasma Cutter

With the WeldMax 164i, the plasma cutter features
Pilot Arc system automatically senses loss of voltage, and
re-ignites the Pilot Arc allowing for the torch head to
maintain an arc when cutting. This is effective allowing
you to not worry about the cutting height, cut speed, and
it allows you to cut expanded metal. Pilot Arc technology
allows for you to always have power to the arc which
increases your cutting speed and assists with uneven
cutting surfaces.

Panel or Foot Pedal Control

The control panel gives the operator the power to
change the welding parameters at his fingertips.
LONGEVITY understands that the foot pedal may be
inconvenient to use sometimes which is why it allows the
user to control welding parameters with its easy to uses
control panel. If you do like to have two free hands, the
foot pedal will be a great addition to the welding


Digital Meter Display

The WeldMax 164i features digital meters displaying your
amperage to allow customers to adjust the unit to any
amperage quickly, accurately, and easily for TIG, STICK,
and Plasma Cutter functions.


110v/220v 50/60hz 1 phase


Plasma,DC TIG, Stick

Amp Output

Plasma: 40amps

TIG: 160amps

Stick: 160amps

AC/DC Function



IGBT Inverter Based

Plasma Cutting Capacity

3/4'" Severance 

Duty Cycle

60% at MAX Amps on all processes

CNC Compatible


Stick Welding Capable


Starting Mechanism

TIG: High Frequency

Plasma: High Frequency


W: 9” x H: 12” x D:19”








Product Literature :
View FileWeldMax 164i 205i 250i Manual 1.15 MB



One year Warranty, parts and labor. Please take a look at our terms and policy page for detailed warranty information on this unit.





PROMTS® 252i




PROMTS® 200i

Inverter Type Infineon IGBT Infineon IGBT Infineon IGBT Infineon IGBT
Voltage/ Plasma Cutting (PAC) Specs 95% Duty Cycle @ 40 A (220/240) N/A 100% Duty Cycle @ 40 A (220/240) N/A
Recommended Maximum Cut Thickness 3/4" -- 3/4" --
Maximum Severance Cut 1" -- 1" --
Aluminum 3/8" -- 3/8" --
Weld Aluminum No Yes with Optional SpoolGun Yes with Optional SpoolGun Yes with Optional SpoolGun
GTAW-P No Yes Yes No
TIG Welder Specs 10-180Amp at 40% DUTY CYCLE (DC Only) 5-200AMP at 60% DUTY CYCLE (AC/DC GTAW PULSE) This will weld Aluminum 10-250AMP at 35% DUTY CYCLE (AC/DC GTAW PULSE) This will weld Aluminum MIG/MAG: 30% @ 200A,
STICK/ ARC (SMAW) Welder Specs 10-180AMP at 30% DUTY CYCLE (DC Only) 160AMP at 60% DUTY CYCLE (DC Only) 200AMP at 60% DUTY CYCLE (DC Only) STICK: 25% @ 200A


LONGEVITY 3 in 1 40AMP Plasma cutter/ 160AMP DC TIG / 150AMP DC Stick Welder

•    Main Unit
•    Cutting Torch (14FT 60AMP UPGRADED TORCH!)
•    TIG Torch(14FT)
•    Stick Holder(10FT)
•    Earth Clamp(10FT)
•    Water Separator with Bracket ( Built in Air Regulator!)
•    Air Hose for water separator connection
•    Foot Pedal (built in adjustable pod!)
•    Argon Regulator (Standard Fit)
•    Consumables: 3 piece tips, 3 piece electrodes and 1 piece shield cup
•    TIG Shield Cup Set
•    TIG Collet Set

Accessories for this item

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Related Videos

Product Literature
Additional resources
Welding Resources



One year Warranty, parts and labor. Please take a look at our terms and policy page for detailed warranty information on this unit.

Superb multi-process Review by Peter
Acquiring this multi-process machine has helped me to get better in doing job for automobile repair. I am able to weld bits of thin metal and cut effectively expanded metal due to 3 processes in one unit. I am impressed with new opportunities. Good product from good company.
(Posted on Apr 29,2013)

Recommend to buy portable all-in-one machine Review by Kevin
The purchase of this multi- process welder saved money for me and space in a small workshop. Its portability and dual voltage allow using DC TIG welding and STICK welding at any location. Besides, I got plasma cutting capabilities with Pilot Arc system. (Posted on Apr 25,2013)

WELDMAX 164I Review Review by UncleMukherjee
This is a decent stick / tig welding machine and plasma cutter for low-carbon steel, alloy steel, and stainless steel; DC; tungsten is not included. Would work with majority of exotic metals, except aluminium.I am interested in this and thanks for your excellent chat support. All my questions were answered promptly. Very helpful videos on your site. (Posted on Apr 13,2013)

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