Plastic machinery open mold, mold, injection needs to be completed by the hydraulic system, hydraulic oil absorption hydraulic pump energy temperature rise, usually the oil temperature can not be higher than 60 degrees C. The temperature of the cold water machine is more suitable at about 27 degrees C, there are two kinds of cooling methods, one is indirect cooling, water and hydraulic oil is through the heat exchanger for hot and cold exchange, one is direct cooling, direct hydraulic oil cycle cooling.

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