Practical Approach to Optimal Cooling System Design for a Production Line Consisting of Plastic Injection Moulding Machines in Polish Specific Climat Conditions

The paper presents and describes cooling systems mainly used in industrial plants specialized in production based on injection moulding machines. Each solution is rated taking into account investment costs, technical complexity, exploitation costs and system flexibility in general. With regard to dynamically changing law regulations linked to refrigeration installations, mainly F-Gases Act, during optimal system selection new restrictions were respected. This approach ensures long-term exploitation without additional complications. The paper contains characteristics of cooled facility, i.e. production plastic plant using injection moulding machines, presents specifics for this type of application where two extremely different cooling processes are placed in parallel. One task is heat collection from injection moulds to ensure short production time and produced details recurrence, the second is keeping hydraulic oil temperature between temperature limits – this process ensures proper oil viscosity and prevents its premature wear.