S&A CW 3000 chiller is a basic passive cooling solution suitable for ≤80W CO2 laser engraving machine powered by DC glass tube. Featuring the heat dissipation capacity of 50W/℃ and a 9L reservoir, this small recirculating chiller can radiate the heat from the laser tube very effectively. CW3000 water chiller is designed with high speed fan inside without compressor to reach heat exchange in a simple structure with high reliability.