Ice cream machine STAFF Ice system 1959 HSE400

An electromechanical batch freezer churns a liquid mix into gelato or sorbet by freezing it while beating air into it. A refrigeration unit cools the cylindrical tank from the outside, lowering the temperature of the mix below its freezing point. Inside the tank, a rotating mixer stirs the mix continuously, breaking up ice crystals as they form and incorporating air to give the finished product its smooth, creamy texture. The faster the mix freezes and the more evenly it is stirred, the finer the crystals and the richer the result.

The operator pours the prepared mix into the tank, selects the desired consistency setting—creamy, compact or dry—and starts the cycle. The machine cools the mix while the mixer turns at one of three speeds, controlled by an inverter that ramps up gradually to protect the transmission. A defrost switch on the tank allows the operator to release any ice build-up before restarting the mixer. Once the cycle completes, the door opens and the finished batch is extracted, ready for serving or storage. The freezer can continue the next cycle even while the previous batch is being removed.

Built for wet and low-temperature environments, the HSE400 has a high-thickness stainless steel door with double hinges for a secure seal. The mixer is stainless steel, and the scrapers are self-adjusting POM, designed to clean the tank walls thoroughly and last through repeated cycles. A non-slip mat on the tank base prevents movement during operation. Acoustic and visual indicators alert the operator to any malfunctions, while an Ad Hoc consistency control system lets the user fine-tune density and texture for different recipes.

The 400 V three-phase supply powers the refrigeration unit and mixer, suitable for commercial kitchen circuits. At 215 kg and 600 mm wide, the unit is floor-standing and requires a dedicated space of 830 mm depth and 1388 mm height. The 40 L/h capacity allows continuous production of up to 7.5 litres per cycle, with the option to choose between air, water or combined cooling methods.

Cleaning follows from the materials: the stainless steel tank and mixer are wiped down after each use, while the POM scrapers self-clean during operation. The defrost switch simplifies tank maintenance, and the non-slip mat is removable for thorough cleaning of the base. Customisable recipe settings are stored for quick recall, reducing setup time between batches.