Applications for Underheater range from pre-heating of PCBs for hand soldering tasks over pre-heating for automated machine rework to curing or cracking of under fill. They can be classified by size of the heater and heater performance. For small boards IR systems are available up to a power rating of 2.000 W. For medium sized boards and above Hybrid heaters between 3.000 and 10.000 W are on offer. Hybrid Underheaters can be augmented with additional functions, such as Hot Gas top heating, residual solder removal and Positioning Arm.