Low Force Friction Welders Explore MTI’s most popular Low Force friction welders for industry. Select a machine below for detailed information and specifications. Rotary Resistance View Machine Rotary Induction (OD Coil) View Machine Microwelder View Machine LF35-35 View Machine LF35-35 (Rotary Induction) View Machine Our Commitment Quality is at the core of our ingenuity MTI brings the highest possible degree of safety and quality, whether it’s a part we’re welding or a machine we’re building. We are equipped to produce parts for the most sensitive environments and exacting standards.