HTP America continues to set new standards in AC/DC inverter welders with the introduction of the Invertig 221. The new Invertig 221 AC/DC Inverter Welder will allow you to produce professional welds with all types of metal! The 221 has a full 220 amps of welding power, and it only weighs 40 lbs so it’s easy to take this rugged welder right to the job.
The Invertig 221 is packed with features; it is the only welder in its class with independent AC amperage adjustment. This feature gives you precise control over the heat input to both the work piece and the tungsten by allowing you to separately adjust the electrode negative and electrode positive amperage. The 221 also offers you the ability to adjust the AC frequency from 20 Hz to 200 HZ – the high AC frequency gives you a more focused arc with greater arc control.
The Invertig 221 is an excellent DC welder with a smooth, stable arc coupled with the 221’s high speed DC pulse makes intricate work on mild steel, 4130, stainless, inconel and titanium a breeze. The 221 gives you arc control like you have never before experienced.
The Invertig 221 allows you store up to 64 separate welding programs and provides outstanding performance when stick welding in either AC or DC modes. There are three models to choose from, Air Cooled, Water Cooled or Dual Voltage and every Invertig 221 comes with a 3-year warranty and a 90-day money back guarantee.
HTP America is a single source for a complete lineup of MIG and TIG welders, Plasma Cutters and welding helmets. The company also provides a wide selection of auto body and metal working tools, and welding accessories and supplies such as welding wire, welding guns and parts. HTP equipment is used by top competitive teams in most popular racing series.















HK KEEPLEADER MACHINERY CO.,LTD is specilized in various welding machine of metal and thermoplatic parts, for example, Battery pack spot welder, resistance welding machine, DC inverter welding machine. ultrasonic metal welding machine, high frequency welding machine