Self-contained ice makers incorporate an ice production system and ice storage bin into one machine. The smallest machine in the range produces 20 kg of ice per 24 hours and stores up to 4 kg, while the largest machine produces up to 155 kg per 24 hours and stores up to 65 kg. These machines produce hollow cubes of crystalline ice that cool quickly and melt slowly, making them particularly suited to hard water areas due to their ice manufacturing processes. They are suitable for use in nightclubs, pubs, restaurants, healthcare industries, educational facilities, hotels, and supermarkets.