High-Performance Compressor: The portable chiller applies a 6HPPanasonic compressor that ensures the chiller will operate reliably and stably. Water flow is 4.5 m3/h, and pipe diameter is DN1 in / DN25 mm, less vibration and noise. Built-in 53L stainless steel water tank for your facilitated operation. Powerful Cooling: Our water chiller uses standard R407 refrigerant to keep engraving machines up to 18KW cooling during use. Its 4.5 KW compressor can cool up to 15480 Kcal per hour. The 53L water tank is enclosed to reduce evaporation and provides long-term service between refills. Professional Protection System: Including an overload protector, high and low-pressure switch, electronic alarm prompt functions, automatic water replenishment. The environmental temperature must be less than or equal to 40. Smart Micro-Computer Control: Multi-functional control table includes intelligent LCD, microcomputer control, power buttons for compressor and condenser