870734 - Tweco Fabricator Series Replacement Control Knob

Restore Precision to Your Fabricator Welder

The Tweco 870734 Control Knob is a critical replacement component designed specifically for the renowned Thermal Arc and Tweco Fabricator series of multi-process welding machines. In the demanding environment of a metal fabrication shop, the front panel controls of a welder are often subjected to heavy use, accidental impacts, and the wear and tear of daily operation. A missing, cracked, or loose control knob can make it nearly impossible to dial in your voltage, inductance, or wire feed speed accurately, leading to inconsistent welds and frustration for the operator.

This genuine OEM part ensures that your machine functions exactly as the manufacturer intended. Unlike generic universal knobs that may not fit the D-shaft or splined shaft of the machine's potentiometers correctly, the Tweco 870734 is engineered for a secure, slip-free fit. This guarantees that when you turn the dial, the machine responds instantly and linearly, allowing for the micro-adjustments necessary for high-quality MIG, TIG, or Stick welding.

Compatible with popular models such as the Fabricator 181i, 211i, and 252i, this knob features a textured exterior that provides excellent grip, even when the operator is wearing heavy welding gloves. Maintaining the integrity of your machine's interface is essential for safety and productivity. Don't let a broken plastic part compromise your welding performance; replace it with the authentic component to keep your Fabricator unit running at peak efficiency.

Key Benefits

• Perfect Fitment: Designed exclusively for the potentiometer shafts used in the Fabricator series, ensuring no play or wobble.
• Durable Construction: Made from high-impact industrial plastic capable of withstanding the heat and rough handling typical of welding environments.
• Enhanced Control: Restores the tactile feedback required for precise parameter setting.