Introduction
    Yu Jiang laser machine specialized cold water machine uses fully-closed turbine air compressor and semi-closed screw-shaft air compressor. These imported products have famous brands. The new highly efficient condenser, stainless steel evaporator, stainless steel water pump, stainless steel pipeline and cooling and controlling components are of the most famous brands globally. This cooling machine has good features such as superior functions, stable performance, simple operation, good appearance. Our company can design and produce special components upon special requests for laser machine specialized cold water machine. The cooling machine is tested at the running test center and only launched when achieving the technical criteria. Therefore, this cooling machine has high efficiency, good quality, and few problems. Our laser machine specialized cold water machines are the most favourite ones of customers.

Working principle
    Laser machine specialized cold water machine uses water (or wind) for chilling, high temperature high pressure gaseous refrigerant escaping from air compressor goes through tubular condenser (or winged condenser) and cooling tower (or heat dissipation ventilator) to become low temperature high pressure liquid refrigerant, then expansion valve supplies low temperature low pressure liquid refrigerant to tubular evaporator for evaporation to achieve chilling efficiencies (capacity state: The required input temperature of water: 12℃, the required output temperature: 7℃, the required input temperature of cooling water: 30℃, the required output temperature: 35℃or external environment temperature DB35℃/WB24℃)
Scope of use: the cooling machine is used for industrial laser machine.

Air compressor
    Air compressor: using fully-closed turbine air compressors of globally famous brand-names such as DAIKIN、COPELAND、SANYO、MANEUROP, Performer, or semi-closed screw-shaft air compressors such as HANBELL, Bitzer, Ref Comp. They have such dominating features as stable performance, high efficiency, low incident rate, convenient maintenance. Their working hour can reach 40,000 hours. Based on customers’ request, one or more air compressors can be used, air compressor can change in accordance with sub-load, automatically interchange operation, balance working hours of air compressors, save power, extend cooling machine’s life span.
(Fully-closed turbine air compressor uses refrigerants such as R22、404c、R407c、R134a)

Condenser and evaporator.
    Cooling water tube condenser: using various heat exchange copper tubes imported from German, Japan and produced domestically. The copper tube’s outer surface is processed in low-level ladder shape, thereby increasing the heat exchange area, enhancing the heat transfer. The copper tube’s inner surface is glossy, thereby reducing water pressure and making it easy for cleaning and maintenance.
    Cold winged condenser: uses different heat exchanger copper tubes imported from Germany, Japan or domestically produced, the heat exchanger copper tubes of high efficiency are transparently threaded and the wind guide winged  is made of water permeable corrosion- resistant thin aluminum foils in parallel pairs, that expand the mechanical tube to tightly link the copper tubes and aluminum pieces together in order to maximize heat transfer efficiency, compact structure, small volume, light weight, high efficiency of heat exchange, easy cleaning and maintenance
The evaporator is made by high effective stainless steel tube which is suitable to the requirements of cooling water used for laser beam transmitter, which is prohibited from contacting with such materials as copper, tin and iron. Our company can follow customer requirements to select suitable material to fabricate the evaporator, increase efficiency of cooler and longevity of the machine and ensure the stable performance of laser beam transmitter and water cooler.

Cooling Units
    Cooling Units: Using the well-known global brands such as DANFOSS, ALCO, SPORLAN with first-rate quality and superior functionality which helps promote machine efficiency.

Electric control-system
    Electric control-system uses smart PLC、PC touch screen control system in Chinese language with quick response and precise control. The system has functions of water temperature automatic control, load automatic increase and decrease, on-off timing and record of incident causes. The operation is simple and easy. Its automatic protection function can prevent the machine from damage during operation, extend the longvity of the machine and perform remote control and central control.

Protection devices 
    Compressor overload protection devices, overheating coil protection devices, ventilator motor overload protection devices, low-high pressure switch protection devices, phase (phase opposite, phase shortage) protection devices, anti-freeze protection devices, safety valve or safety bolts. They are the best protection for the machine.