... , with high positioning accuracy and fast operation.2,high-precision temperature controller, built-in PC serial port, external sensor, can be ... 2nd are hot-air heaters, the 3rd is IR preheating, temperature controlled within ±3 °. Top heater can be adjusted freely, ... high-precision K-type thermocouple, closed loop control and automatic temperature compensation system.6. Use a V-groove equipped with a ...