1、This control panel of the spot welding machine is independently developed for the DIY or the simple resistance welding. 2、Equipped with digital display, you can see the time and current directly, simple and easy to use. 3、Strong and weak electricity through optocoupler isolation, makes a safe operation. 4、The power line and the foot switch line are adopt screw free quick connection terminal, more convenient and reliable. 5、The input time and current are using high accuracy single-potentiometer to ensure reliable input. 6、Convenient on-board powersupply, state, foot, trigger indicator, working state clearly visible. 7、Reliable zerocrossing detection circuit to ensure that the SCR phase shift accuracy. 8、The controller is compatible with 100A SCR. 9、Digital control interface, you can display the current time and current settings. 10、Time input 1-50, unit cycle (1 cycles is 20ms), current input (30-99%). 11、Two types optional, 40A and 100A, you can choose according to your demands. This is a kind of quality spot welding machine set, includes 1*control board, 1*transformer, 2*welding pen, 1*foot pedal, 1*pair neddle, and 1* roll of nickel sheet. of The control panel of the spot welding machine is a controller which is independently developed for the DIY or the simple resistance welding. The principle of silicon controlled phase shifting triggering is adopted to adjust the time and the current to achieve the purpose of welding. Uses of STM8 industrial microcontroller control center. Two types optional, 40A and 100A, you can choose according to your demands. Features: This control panel of the spot welding machine is independently developed for the DIY or the simple resistance welding. Equipped with digital display, you can see the time and current directly, simple and easy to use. Strong and weak electricity through optocoupler isolation, makes a safe operation. The power line and the foot switch line are adopt screw free quick connection terminal, more convenient and reliable. The input time and current are using high accuracy single-potentiometer to ensure reliable input. Convenient on-board powersupply, state, foot, trigger indicator, working state clearly visible. Reliable zerocrossing detection circuit to ensure that the SCR phase shift accuracy. The controller is compatible with 100A SCR. Digital control interface, you can display the current time and current settings. Time input 1-50, unit cycle (1 cycles is 20ms), current input (30-99%). Two types optional, 40A and 100A, you can choose according to your demands. Specifications: Name: Battery Spot Welding Set Model: NY-D01 Material: metal + plastics Type: 40A, 100A (optional) Item weight: 40A: 829g / 1.83lb 100A: 858g / 1.89lb Package size: 205 * 105 * 145mm / 8.07 * 4.13 * 5.71in Package weight: 40A: 916g / 2.02lb 100A: 945g / 2.08lb Packing List: 1 * Control Board 1 * 9V Transformer 2 * 16 Square Spot Welding Pen 1 * Metal Foot Pedal 2 * Spot Welding Needle 1 * Nickel Belt 0.15 * 8 * 10m 1 * Control Board 1 * 9V Transformer 2 * 16 Square Spot Welding Pen 1 * Metal Foot Pedal 2 * Spot Welding Needle 1 * Nickel Belt 0.15 * 8 * 10m