SIEBTECHNIK TEMA | Unit Operations | Multi-purpose mill

Multi-purpose mill

Fine comminution in the laboratory

Universal mill UM 150, view of the grinding track with rotor and slotted sieve insert

The Multi-purpose mill UM 150 is used for the fine grinding of dosed, dry, brittle, medium-hard materials < 15 mm up to a Mohs hardness of approx. 6.

How does the Multi-purpose mill work?

The comminution effect is based on an impact, bounce and shear stress that is generated between the fast-rotating rotor and the toothed grinding track.

Advantages

Low-wear and low-maintenance design
Overgrinding of fine material is avoided
Grinding chamber and cyclone can be fully inspected for inspection/cleaning

Operating behavior & mechanical features

Crushing & Milling of the fed material takes place until it can pass through the slotted sieve insert with the suction air. This prevents overgrinding of fine material that has already been produced. The shredded material, which is removed with the suction air, is then separated via a cyclone in a sample collection bottle (500 cm³). As an option, a tube can be screwed in via the opening in the base of the housing instead of the sample collection bottle, allowing a larger container to be installed underneath the machine.

For inspection and cleaning of the machine, the housing cover of the machine can be opened so that the grinding chamber and cyclone are fully visible. The damper-supported cover is monitored for the safety of the operator and causes the brake motor to stop immediately when it is opened. The slotted screen inserts, which are decisive for the fineness of the end product, can be inserted into the corresponding cut-out in the grinding track when the cover is open.

Downloads

Sample preparation laboratory

Gallery

Universal grinder UM 150 for fine grinding of dry, brittle, medium-hard materials

Universal mill UM 150

Universal mill UM 150 grinding track with rotor and slotted sieve insert

Universal mill UM 150, the slotted screen inserts that determine the fineness can be easily changed

Universal mill UM 150, grinding track - rotor removed

Universal grinder UM 150, opening the cover immediately stops the motor

Universal mill UM 150

Universal mill UM 150 slotted sieve insert

Universal mill UM 150 - Rotor

Universal mill UM 150 possible inserts, slotted sieves or perforated plates

Universal mill UM 150, various inserts

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Unit Operations