This Hermann Linden Maschinenfabrik LPMD-2 is a mixer and blender — sometimes referred to as a planetary mixer — used for mixing, blending, and dispersing materials in laboratory, pilot-plant, and small-batch production settings. Hermann Linden Maschinenfabrik is a German manufacturer with a long-standing reputation for building precision mixing and dispersing equipment, serving industries such as chemicals, pharmaceuticals, cosmetics, and coatings.
This machine is built around a stainless steel pan in grade 1.4401 (AISI 316), offering good resistance to corrosion and chemical attack. The pan has a capacity of 2 litres and measures 160 mm in diameter by 110 mm in depth. It is supplied with both the pan and a cover, and the pan is fitted with a jacket, allowing temperature control of the batch through an external heating or cooling medium. The machine carries serial number 1555 and is noted as having the vacuum option available, making it suitable for mixing under reduced pressure where entrapped air or oxidation must be avoided.
The mixing head is configured as a planetary dissolver, combining the orbital planetary motion of the mixing tool with a high-shear dissolver disc — a configuration well suited to incorporating powders into liquids and breaking down agglomerates. The main motor is rated at 1.1 kW and is wired for 220/380 V. A variable speed drive is fitted, giving the operator control over the dispersing speed to suit different materials and process stages. A separate scraper agitator is also installed, driven by a 0.55 kW motor, also at 220/380 V, with variable speed, ensuring that material at the pan wall and base is continuously returned into the mixing zone.
The machine has a floor footprint of 1.0 × 0.7 m and stands 1.8 m in total height. It is located in Barneveld, Netherlands, and was manufactured in 1991, being offered here in used condition.
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