Open-Type Bulk Milk Coolers Open-type cooling tanks are engineered for the reception, rapid cooling, and short-term storage of milk on small and medium-sized Dairy Units. Cooling is typically achieved from ~+34…36 °C to +4 °C in approximately 3 hours based on ~⅓ volume filling at an ambient temperature of up to 25 °C. The unit is fabricated from food-grade AISI 304 stainless steel with PU foam thermal insulation; the agitator ensures uniform cooling and prevents product separation. Operating modes are managed via a built-in controller/thermostat that maintains the set storage temperature. Key Features
Open AISI 304 tank with smooth internal surfaces for sanitary processing; thermal insulation minimizes heat loss and energy consumption.
Agitation: Low-speed paddle agitator ensures uniform cooling without foaming.
Direct expansion refrigeration circuit designed for daily fresh milk intake and cooling cycles.
Temperature control and maintenance at +4 ± 1 °C in storage mode.
Simple sanitation: Open coolers are generally not equipped with built-in automatic washing (CIP), which reduces costs and suits operations with manual cleaning protocols.
Capacity Range (Standard Solutions) Series models are produced ranging from approximately ~300 to ~3,150 L; available configurations include 500/800/1,000/1,500/2,000/3,000 L and similar nominal volumes. Specific dimensions, power consumption, and power supply requirements depend on the model and configuration. Configuration and Options
Stainless steel tank with lid(s);
Agitator with gear motor;
Refrigeration unit (typically 380 V, frequency depending on version);
Drain assembly/valve, dipstick (on select models);
Controller/thermostat, temperature display;
Optional: choice of refrigerant and power supply specifications (confirmed per model).