How to use and maintain hot and cold cylinders

**Use and Maintenance of Hot and Cold Cylinders**

Proper use and maintenance of hot and cold cylinders ensure efficient operation and long-term durability. Follow these steps for optimal performance:

### **1. Instructions for Use:**

- **Cleaning:** Before use, clean the reservoir with fresh hot water and sterilize it with steam.

- **Filling:** Introduce material slurry through the cylinder head pipe or by opening the cylinder head. Avoid overfilling to prevent splashing during agitation.

### **2. Heating Method:**

- Close the refrigerant inlet valve and drain any remaining refrigerant from the jacket.

- Add the material, start the agitator, and open the steam valve.

- Once the desired temperature is reached, close the steam valve, wait 2–3 minutes, and then stop the agitator.

### **3. Cooling Method:**

- Close the steam valve and drain any steam condensate.

- Open the refrigerant valve at the bottom of the cylinder to circulate refrigerant, lowering the material's temperature.

### **4. Insulation:**

- Start the agitator and high-speed valve to maintain the desired temperature, monitoring with a thermometer.

### **5. Cleaning:**

- After use, drain condensate from the jacket and rinse with warm water to remove sticky residues.

- Clean the inner wall with 40°C–50°C alkaline water, then rinse thoroughly with clean water.

- Disinfect with hot water or steam (90°C or above) for 2–3 minutes before the next use.

### **6. Maintenance:**

- Regularly check the equipment and reducer. Refill reducer lubricant as needed and change the oil (40# engine oil) every six months.

- Rinse the jacket with warm water when not in use to prevent saltwater corrosion.

- Keep the exterior clean and the interior shiny for long-term durability.

By following these steps, the hot and cold cylinders can maintain optimal functionality and cleanliness.