Handheld convection tool delivers precision SMT reword for lead-free
16 November 2005Manufacturing / Production Technology, Hardware & Services
OK International has developed a hot air tool designed for removing and replacing thermally-demanding lead-free components from 0201s through to 304-pin QFPs. The HCT-900 handheld convection tool is engineered as a versatile, low cost solution for production facilities. It features closed-loop thermocouple feedback, high-precision air pump, cool-down functions and analog controls.
The HCT-900 rework system provides the flexibility to handle a wide range of production and rework applications, including lead-free. Typical applications for the 300 W unit include removal or replacement of QFPs, PLCCs, SOPs and TSOP devices. It can also be used to provide heating and reflow for touch-up work as well as heatshrink and other local heating applications.
The closed-loop thermocouple feedback regulates output temperatures. Control temperatures can be set in the range 100-500°C. Once the user sets the heat and airflow control dials for the application, the unit maintains the required parameters. Temperature is maintained automatically, even if the airflow is adjusted. The unique low-noise pump, (less than 45 db), provides precision airflow control. A power-off, cool-down function retains the airflow as the unit powers down for efficient heater cooling and reduction of thermal stress.
A wide range of nozzles for the HCT-900 is available from OK International that work for general purpose applications or specific SO and TSOP packages, or PLCC, BQFP and QFP devices. In addition, the system also accepts many industry standard nozzles.
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