Industrial blender for the metallurgical industry

The KÜTTNER – Group is a leading global company in building turnkey plants for the metal  producing and metal treating industry. Processing, melting and conveying units are typically part of their scope of supply. For mixing alloy pellets required in a downstream reactor, KÜTTNER was looking for a suitable industrial blender which would treat the products especially gently. After scale up tests at Lindor, the gentle touch mixer proved to be the perfect solution for this requirement. The mixer designed and built for KÜTTNER allows mixing of various products with powders and micro – granules.

The process

At a completely new plant in China, alloys are produced which are used as aggregates for further high value – alloys. The product is applied for components in the aircraft and space industry and also for other high tech applications. Various materials are dosed in sequence  according to their specific weight in the mixer, are mixed and fed into a reactor. For the entire reactor process the reactive surface of the main component should not be too large. This is why the main components of the mix appear in the form of pellets. Micro – granules and powders are also used. It is essential here that the pellets are not damaged during the dosing and the mixing process. Therefore “gentle touch“ mixing is a strict requirement. When investigating the market for batch industrial blenders, the Lindor mixer was selected as the most appropriate one for gentle mixing. Tests confirmed that a very homogenous mix is achieved within a short time without damaging the sensitive pellets.

Technical specification

Powders, granulate and pellets of different sizes are mixed together. The Lindor industrial blender was built out of stainless steel AISI 316L. Due to the abrasive properties of the products gland seals were integrated at both the inlet and the outlet. The mixer is equipped for the later introduction of liquid with an injection device, in order to feed in a 3 % emulsion.  Mr. Schwieger, the project leader, further pointed out: “The whole co-operation with Lindor and their after sales service has been excellent!”


The KÜTTNER Group, founded in 1949 by Dr. Carl Küttner, builds turnkey plants for the iron, steel and non-ferrous metal industry, as well as in the field of energy and environmental technology. KÜTTNER’s specialty is metallurgical plant engineering, including, in particular, plants for special metals, ferroalloys, non-ferrous metals and cast products. KÜTTNER designs and builds state of the art installations for foundries meeting their highest demands. Typical projects are automatic charging plants, cupola melting plants, processing plants for the serial production of green sand castings and for large castings made in no bake sand centrifugal casting plants. Thanks to its many years of experience KÜTTNER is in a position to implement even the most demanding projects for modernization and upgrading of complete foundry plants. Internationally the KÜTTNER Group is represented through a network of affiliated companies and agents.

“The whole co-operation with Lindor and their after sales service has been excellent!”

Christian Schwieger, Project Leader

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