Collette's GRAL-75 is a used universal mixer and blender — sometimes referred to as a high-shear mixer or granulating mixer — built for intensive mixing, blending, and granulation tasks in pharmaceutical, food, and chemical processing applications. Collette is a well-established Belgian manufacturer with a long history of producing high-performance mixing and granulation equipment for the pharmaceutical and related industries. This unit dates from 1989 and is located in Barneveld, Netherlands.
The machine is constructed entirely from stainless steel grade L), with all product-contact surfaces polished to a hygienic finish. The bowl has a gross capacity of 75 litres and a net working capacity of 50 litres, with a vessel diameter of 520 mm and a depth of 350 mm. A cover is fitted, and the unit includes a pneumatically operated outlet with a diameter of 130 mm. Two inlet connections are present, measuring 50 mm and 20 mm in diameter respectively.
The mixer is driven by a motor rated between 2.2 and 3.3 kW, with a rotor operating at selectable speeds of 1,500 or 3,000 rpm. A lump breaker is also fitted, which assists in breaking down agglomerates during the mixing process. The machine is supplied with an additional agitator, extending its operational flexibility. It is mounted on a structural frame, and switchgear is included, supplied as-is.
The overall installed height is 2.2 metres, and the unit occupies a floor footprint of 2.2 by 0.90 metres, making it a compact but fully self-contained installation. Machine number is recorded as 90M67561.
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