This machine is a Z-blade mixer — sometimes referred to as a sigma blade mixer or kneading mixer — a heavy-duty batch mixing machine used to process high-viscosity materials such as rubber compounds, adhesives, sealants, doughs, pastes, and similar dense or cohesive substances. The contra-rotating Z-shaped blades generate intense shear and folding action within the trough, making this type of machine a standard workhorse in food processing, chemical manufacturing, and rubber and plastics industries. F. Aoustin & Cie, based in Darnetal, France, is a manufacturer with a long-standing reputation for industrial mixing equipment of this kind.
This example, dating from 1998 and offered in used condition from Barneveld in the Netherlands, carries serial number 774 and is designated type M-40 SL. The trough has a total volume of 400 litres with a useful working capacity of 250 litres, and the trough dimensions are 845 × 700 × 750 mm. The machine is constructed in mild steel throughout.
The main drive motor is rated at 45.0 kW and is specified for 400/690 Volt operation with an Ex (explosion-proof) classification, making it suitable for environments where flammable materials may be present. The Z-blades operate at two selectable arm speeds of approximately 15 and 20 RPM, achieved through a single-geared drive arrangement. The trough is fitted with a jacket rated to a working pressure of 4 Bar, allowing temperature control of the batch via heating or cooling media, while the process working pressure is 0 Bar. The unit is also noted as being capable of vacuum operation.
The mixer is equipped with a cover, adjustable packing glands to manage sealing around the blade shafts, and hydraulic tilting for discharge, supported by an integrated hydraulic unit. Without the drive unit, the mixer occupies a floor footprint of 2.2 × 2.1 metres, and the total installation height is 1.8 metres.
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.