About this machine

This Grieser is a vacuum mixer and blender — sometimes referred to as a vacuum planetary mixer — designed for the intensive mixing, blending, and processing of viscous or sensitive products under vacuum conditions. Grieser is a German manufacturer specialising in high-precision mixing and blending systems for industries such as food, pharmaceuticals, cosmetics, and chemicals, where hygiene, process control, and material integrity are paramount.

Built in 2018 and located in Germany, this used machine has accumulated approximately 700 to 800 operating hours and is offered with documentation. It is a butterfly-type vacuum mixer, meaning the mixing action is delivered by a butterfly stirring insert that follows the contour of the vessel wall, ensuring thorough product contact throughout the mixing chamber. Three butterfly stirring inserts are included, along with three associated containers, making the unit well-equipped for varied production requirements.

The machine has a total connected load of approximately 18 kW and operates on 400 V / 50 Hz supply voltage, with a control voltage of 24 V DC. The butterfly agitator runs at variable speeds between 72 and 720 rpm, while a separate wiper arm operates at a fixed speed of 16 rpm, sweeping product from the vessel walls and directing it back into the mixing zone. A dedicated vacuum pump rated at 1.5 kW runs at 1,500 rpm to maintain the reduced-pressure environment within the mixing chamber.

The mixing chamber has a working volume of 100 litres, with internal pressure ranging from 0 to 1 bar. The vessel is fitted with a heating and cooling jacket, which has a volume of 13 litres and a maximum jacket pressure of 3 bar, allowing precise temperature management. The jacket operating temperature spans from 15 °C to 150 °C, while the maximum operating temperature for bearings and seals is 130 °C. All product-contact parts are manufactured from 1.4301 stainless steel, hard chrome plated and ground to a surface finish of grain 240 (Ra value as noted in the original data), ensuring both corrosion resistance and cleanability.

The hood is equipped with a sight glass and integral lighting for process monitoring, as well as an analogue pressure gauge and a pressure transmitter connection (TC-DN25). Container clamping is achieved via a quick-release system with one-sided safety monitoring through a safety initiator. The control system is housed in a dedicated control cabinet with a control panel, providing operator access to process parameters. The machine is finished in RAL 1013 pearl white smooth lacquer and is rated for non-explosive (non-Ex) zones. Overall dimensions are approximately 2,641 mm in length, 1,360 mm in width, and a maximum height of 2,450 mm with a stroke of 650 mm, and the machine weighs approximately 2,400 kg excluding the containers.

This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.