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HOBART 500551 TIG Welder 50 lb. TIG Stick EZ-TIG 165i | AH9UZR 44YW20

HOBART 500551 TIG Welder, EZ-TIG 165i, Single Knob & Remote Foot Control

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Item: AH9UZR Model: 500551Cross Ref: 44YW20
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Get it by Feb 13, Monday

SGD 5,121.41 /unit (inc. GST)
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Product Specifications:

ItemTIG Welder
Duty Cycle20%
Input Voltage230 VAC
Max. Output Amps165
Overall Depth23.875"
Overall Height17"
Overall Width9.875"
Rated Output150A @ 16V
Weight50 lb.
Welded MaterialMild Steel, Stainless Steel and Aluminium
Welding ProcessesStick, TIG

Shipping Info:

Ship weight (kg) 27.22
Ship height (cm)52.83
Ship length (cm)68.07
Ship width (cm)34.8
Country of OriginUS

Product Details:

TIG Welders or Gas tungsten arc welders (GTAW) are ideal for welding / joining thin sections of stainless steel, steel, aluminium, magnesium and copper alloys. They use an arc welding process with the help of a non consumable tungsten electrode to produce the weld.
Hobart TIG welders operate at 230 volts of AC / DC power to deliver current to the welding arc through an electrode stick. They are available in EZ-TIG 165i Series models to indicate easy TIG welding operation and a maximum output of 165 amperes.
Hobart 500551 EZ-TIG welder is used for light welding applications on ferrous metals including steel and nonferrous metals, such as aluminium having thicknesses ranging from 22 gauge to 3/16 inches. This Hobart TIG welder features light weight inverter based design with handles to ensure portability and consistent welding arc. The unit has a material setting toggle switch having AC (gray coloured) setting for aluminium & magnesium metals and DC setting (orange coloured) for steel, stainless steel and chromoly. The amperage control of the TIG torch is done using a remote foot control and a material thickness knob. The material thickness knob can be turned according to material and its thickness by following the grey or orange coloured tracks. The fan on demand feature of the Hobart TIG welder runs only when required to reduce the entry of contaminants into the unit. The unit also has a high frequency (HF) indicator to denote high frequency start for creating a non-contact arc and eliminating tungsten rod and material contamination. Hobart TIG welder is integrated with auto post flow for delivering optimum shielding gas based on welding amperage without any adjustment. It further features automatic high temperature shutdown for protecting the unit in case of overheating.


Hobart TIG welder, 500551 EZ-TIG 165i is used to weld thin sections of steel, stainless steel, chromoly, aluminium and magnesium metal pieces. It is generally used for repair, fabrication & refurbishing applications in the automobile & aviation industries.


  • Hobart TIG welder, 500551 EZ-TIG 165i uses a tungsten rod for welding thin pieces of steel or aluminium metal.
  • It has a convenient single control knob and foot control for regulating amperage to the workpiece according to the material thickness.
  • The control knob can be turned based on AC or DC setting. AC is generally for non ferrous metals like aluminium, whereas the DC setting is for ferrous alloys like steel or stainless steel.
  • This Hobart TIG welder has portable design with handles for easy operation in any location.
  • It comes with a gas regulator, hose, Weldcraft TIG torch and a 12 feet work cable with clamp for quick & safe welding operation.
  • This Hobart TIG welder has an inverter based power source with auto post flow for consistent welding arc and optimum shielding without adjustments and power wastage.
  • It has safety features like automatic high temperature shutdown & fan on demand for protecting the unit in case of overheating.
  • This Hobart TIG welder has a high frequency start to eliminate tungsten & material contamination.

Compatible Accessories:

  • Raptor Supplies can deliver replacement parts, such as primary cord & plug, remote foot control, work cable with clamp and flowmeter with gas hose for replacing old, worn out or faulty parts of the Hobart TIG welder.
  • We also supply a replacement Weldcraft TIG torch for replacing the Legacy 17 Weldcraft TIG torch.

Standards and Approvals:

Hobart TIG welder, 500551 EZ-TIG 165i is CSA approved to ensure user safety, environmental health and superior performance of the welder.


  • Hobart TIG welder is attached to a foot pedal using a RFCS-RJ45 connection for remote amperage control.
  • Backside of the unit is connected to an inert gas supply using the flow regulator & hose.
  • Connect the air cooled TIG torch and the clamping wire to the Hobart TIG welder.
  • The unit is then plugged in securely to a 230V power supply.
  • Now, the Hobart TIG welder is ready for operation.

Frequently Asked Questions:

Q. What to do in case of Hobart TIG welder failure?

A. Assuming that the Hobart TIG welder is supplied with the right power supply and is the correct choice for the material, the first thing to check is the status of the wiring, fuse and hose connections. Users should also check & clean dirt or dust accumulated on the fan causing heating of the unit. Remote control, tungsten rod & torch cable should also be checked regularly for smooth operation. Users should take care that the material is not in contact with any grounded surface and the gas flow rate is as required by the unit. They should also check for wear & tear on the Hobart TIG welder parts. Hobart offers one year industrial warranty on guns (MIG, plasma & TIG torches) for ensuring quick & easy replacement within the warranty period.

Q. Is this Hobart TIG welder the same as the machine made by Miller?

A. Yes, this Hobart TIG welder, 500551 EZ-TIG 165i is essentially the same in operation & features as the Miller Diversion 165. While the Miller Electric uses a Weldcraft LS17 TIG torch having a fingertip push button for amperage control, the Hobart TIG welder uses a Weldcraft WP 17 TIG torch with a foot pedal for amperage control.

Q. How long power cord is supplied with this Hobart TIG welder?

A. Raptor Supplies offers this Hobart TIG welder, 500551 EZ-TIG 165i having a 7 feet power cord for reaching a power supply at a farther distance.

Contact us

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We're available Monday through Friday, from 09:00 until 17:00.

HOBART 500551 TIG Welder, EZ-TIG 165i, Single Knob & Remote Foot Control
SGD 5,121.41 /unit (inc. GST)