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How does an impact mill work?

A percussion, propeller or hammer mill is a special laboratory mill that is important in many fields due to its remarkable functioning. Unlike the disc, cone or roller mill, the propeller mill is equipped with a rapidly rotating striking blade inside.

The impact and bouncing action of the knives makes it possible to grind rough or coarse powder from various solid materials. The ground material is transferred by the rotating beater blades and finally collected in the collecting device at the bottom.

For what purposes is a beater mill suitable?

Beater mills are used for the coarse comminution of a wide variety of materials. Among other things, they can be used to crush or homogenise highly heterogeneous mixtures of materials. The substance generated in this way can be used as a preliminary stage for further separation of types or materials.

Impact mills are used in the following sectors or industries:

  • in the plastics processing industry, when plastics and soft metals have to be comminuted to such an extent that they can then be separated according to their specific weight using high-performance separating equipment.
  • In laboratories that test and analyse pharmaceuticals, for example.
  • in laboratories of the pharmaceutical industry for the production of medicines and ointments
  • in electrical and electronic scrap processing
  • grain and feed mills, e.g. in the food industry andfor researchpurposes
  • in the construction industry, e.g. for crushing wood waste and for further processing into pellets etc.
  • in coal-fired power plants for crushing lime and coal
  • in mining and metallurgy for grinding gypsum rock, minerals, salts, ores, etc.

If you have any technical questions about impact mills,our expert team will be happy to help you at any time. Would you like to order an impact mill from that is perfectly tailored to the requirements of your company? Then we look forward to hearing from you.

Types of beating mill

When you visit our online catalogue at, you will find a comprehensive range of impact mills. We will be happy to show you the most important types of beater mill:

Impact rotor mill

The so-called beater rotor mill can be adjusted according to the bath requirement and used for the fine or coarse comminution of dry, medium-hard or soft substances in batches or continuously. Fertilisers, graphite, resins, pharmaceutical products, foodstuffs and much more can be crushed very well thanks to the special design of the beater rotor mill.

The same applies to materials such as sugar and salts, seeds, plastics, spices or medicines for the medical sector. The beater blades are set into extremely fast up and down movements and, through their rotation, carry out the grinding process with the desired intensity.

Cross beater mill

The beater cross mill is mainly used for the preparation of medium-hard or brittle substances. Whether fine or coarse comminution, you can adjust it as required.

Whether for sample preparation in the pharmacy or laboratory or for sample production in the production or technical area: slag, oxide ceramics, minerals, but also cement clinker, glass, gypsum, coke or granite can be easily comminuted with the beater cross mill. The beater cross in combination with the robust grinding insert makes the most varied grinding processes child’s play.

Selecting the right beater

You would like to buy a beater mill, but are still unsure which product variant is suitable for your application? Our specialists will be happy to help you find the right beater mill.

The most important selection criteria for a laboratory impact mill:

Maximum feed size

Depending on how large or coarse the material to be shredded or ground is in your institute or laboratory, the laboratory beater should be designed. We will be happy to help you find the right laboratory impactor for the respective feed size.

Final fineness

How fine should the substances you want to grind or homogenise be? In cooperation with our specialists, select the mill with the appropriate final fineness. We recommend that you choose a model where the rotational force of the beater blades can be adjusted as required.

Material properties

At you will find beater grinders that are suitable for medium-hard and dry materials as well as for soft and even sticky materials. Among other things, the design of the grinding mechanism is important here.

Note from the MedSolut professionals:

The more powerful impact mills are, the higher the noise level sometimes is. But here too, we will be happy to show you the right solutions in an individual consultation.

Impact grinders from Your advantages

Order beater mills directly from to benefit from many advantages. The extensive beater mill portfolio will inspire you, and these aspects also speak for themselves:

  • We work exclusively with selected brand manufacturers. This creates trust.
  • We offer you first-class service and outstanding advice. Our friendly team of experts is always available for you.
  • The ordering procedure is simple and uncomplicated, and fast delivery is a matter of course for us.

Beating mill range and manufacturer at

Whether microfine or analytical mills, whether high-speed mills or cyclone mills – the range of beater mills on offer at is very extensive. You can order impact mills from the following manufacturers:


The IKA Group is the market leader in impact grinding mills and is active on four continents with over 900 employees. The manufacturer’s product portfolio is extremely diverse, ranging from analytical mills and micro-fine mills to highly functional universal mills.


The German company Fritsch is a world leader in application-oriented laboratory equipment for particle measurement and sample preparation. The company has been on the market for over 100 years and offers you everything you need for measuring, sieving and grinding from a single source. The range of Fritsch impact mills includes, for example, impact cross mills with cast iron grinding inserts or particularly powerful high-speed rotor mills.


The Retsch Group is the internationally renowned solution provider for the characterisation of solids and for professional sample preparation. The company convinces with its long-standing expertise and is characterised by a high level of customer orientation. At you will find various impact mills from Retsch, such as the innovative ultra-centrifugal mill as well as a high-performance impact rotor mill and an impact cross mill.

Buy an impact mill at – our experts will be happy to advise you!

At you can buy exactly the beater mill you need for your business. If you have any technical questions or would like to take advantage of our excellent service, we are available around the clock by phone at +49 30 209 657 900 or by e-mail at [email protected] .