Ice cream machine STAFF Ice system 1959 RHS15/40

The STAFF Ice system 1959 RHS15/40 is an electromechanical batch freezer designed for professional use. This combined machine features two distinct and independent tanks. The upper tank is configured for thermal processes such as pasteurisation, while the lower tank functions as a horizontal batch freezer. Both tanks can operate concurrently, allowing for simultaneous pasteurisation and freezing.

A batch freezer operates by chilling a mixture while agitating it. The agitation prevents large ice crystals from forming, resulting in a smoother texture. In this combined unit, the upper tank heats the mixture for pasteurisation, reaching temperatures up to 115 °C, and then cools it. The lower tank then takes this mixture and freezes it to the desired consistency.

To produce ice cream, the operator would typically load the ingredients into the upper tank. This tank is equipped with a stainless steel mixer and polyethylene (PET) scrapers, with the agitator shaft featuring a top seal. A transparent cover with a double lid allows for observation. The pasteurisation programme can involve heating to 85 °C or 65 °C, followed by pause times and cooling to 4 °C. A maturing or preservation phase maintains the mixture at 4 °C. Once prepared, the mixture can be transferred via a removable channel to the lower tank. This lower tank also has a stainless steel mixer, but uses POM scrapers and features a double seal on its agitator shaft. The operator then selects a batch freezing programme. There are programmes for time control, temperature control, and density control, alongside circuit programmes. The mixer speed is variable, and temperature control is managed by PID. The operator can adjust cycles in progress dynamically. The machine allows for the production of up to 7.5 litres of ice cream per work cycle, with an overall capacity of 40 litres per hour.

Construction includes stainless steel mixers and transparent covers with double lids on both tanks. The faucets are designed to be flush with the bottom of each tank. The machine is controlled via an on-board computer with a 2.5-inch multilingual display, offering 61 programmes in total. These include 1 mixing programme, 40 free programmes for recipe adjustment and heat treatment, specific pasteurisation programmes, and various batch freezing programmes.

The machine's dimensions are 600 mm in length, 830 mm in width, and 1500 mm in height. It operates on a 400 V electrical supply and weighs 308 kg. Acoustic and visual indicators are present to signal malfunctions. Cooling systems available include air, water, mixed, remote, and tropical options.

This model is listed in the catalogue under bar equipment and ice cream machines. It is compatible with equipment made by RHS and SMARTMIX RHS.