Our spot welder makes a small welding spot that means it won't damage the anti-corrosive paint on the other side of the panel. Fast Heat Radiation： The side holes can help the dent puller quickly dissipate heat.The heating of the machine has the function of overheating protection. When the temperature reaches a critical value, the welding machine will automatically stop working, and can continue to operate after cooling. the automatic overheating protection function can ensure the spot welder dent puller work continuously for a long time without worrying about burnout. It features high efficiency, practicality, and reliability. High precision PCB control circuit board： Microcomputer control, imported components, multi-layer chip technology, dust prevention, moisture-proof, and anti leakage treatment. By presetting expert welding mode parameters, novices can also become masters of gold. The computer automatically memorizes the last operation for the convenience of next boo Intelligent induction repair technology: Intelligent induction/manual integrated one button switch Quick heating repair technology: The combination of quick drawing tools and hot spray guns can achieve one-time drawing repair of concave parts of aluminum body Double grounding design: Fully the current direction of aluminum mesons during the welding process, prevents arc welding, and makes the welding more secure High energy capacitor: Capable of withstanding greater charging and discharging currents than 1 million times, with faster speed Automatic adjustment of welding gun: Different studs require different welding forces, so the welding gun pressure can be automatically adjusted according to different studs Core patented technology: Plug and play pull ring: Plug and play pull ring: regardless of M4, M5, M6 screws, plug and play, greatly improving work efficiency. Avoiding damage and disposal of the pull ring caused by stuck or broken nails. Fast charging and discharging technology: The super large energy storage capacitor has a large capacity, fast charging and discharging speed, and long service life, ensuring the welding firmness of the machine. The power storage process only requires 0.3S, which is called fast charging technology. Rapid heating repair technology: (patented technology)Aluminum body has poor tensile resistance and cannot achieve spot welding and direct pulling like iron body. The combination of a quick puller and a hot spray gun can achieve rapid drawing and repair of dents in aluminum body parts.