MI300T Three-Phase Spot Welder

The high-performance spot welder for all high steel metals!

Arm yourself with one of the highest amps on the market! With up to 20 welding points per minute, the Mi300T is capable of welding at up to 14,500 max amperage securing enough power for repairs on all current and future metals used on vehicles. The transformer is located inside the clamp reducing of any loss of energy during operation. With 1,236 lbs. of available pressure at the welding tips, having the Mi300T welder will future-proof your shop with one of the highest clamping pressures on the market that meets the majority of OEM requirements.


  • Watercooled power cables, electrodes and caps
  • 5.7” LCD screen
  • Automatic adjustment of pressure between electrodes
  • Spot count feature determines the caps lifetime
  • 80 mm of automatic opening capacity (20 mm at rest)

The most advanced spot welder for the most productive body shops!

  • EXCLUSIVE – Powered overhang boom arm that’s ergonomically designed to make operation significantly safer and faster. The ONLY welder on the market with an electrically motorized boom as a standard feature.
  • EXCLUSIVE – The multifunctional G gun is lightweight and easy to maneuver with less stress on the tech
  • EXCLUSIVE – The 19.8’ welding cable is the longest on the market and allows for greater shop mobility.
  • INTELLEGENT WELDING – Auto Mode recognizes steel type, sheet-metal thickness with multiple programs available and tracking that saves the characteristics of each welding spot.
  • Remote controlled clamp controls all welding adjustments and allows for an automatic retraction of the electrodes for quick access of the welding area.

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Power Supply 208-240V or 480V
Fuse: 40 A slow blowing for 208V
20A for 480V
Frequency: 50/60 Hz
Supply Power: 14 kVA (80 kVA max)
Nominal power by 50 % ED 20kVA
Maximum welding current: 14,500 A DC (at 230V)
Electrode Force 550 daN with 8 bars
(1236 lbf with 116 PSI)
Ambient temperature: 41 to 113˚ F
(5˚ to 45˚ C)
Protective System IP 21
Weight without Accessories Approx. 220 lbs. (100 kg)
Pilers Weight 23.1 lbs. (10.5 kg)
Dimensions H / W / D: 36.4″ / 25.6″ / 31.5″
(92.5 x 65 x 80 cm)
Cable Length Input mains cable: 26′ (8m)
Weld cable: 20′ (6m)
Cooling Liquid Technology 8 gallons (30 liters)




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