Hand mortars are always a piece of equipment for volume reduction. Decompression on a limited scale can also be accomplished with end mills and edge mills, which are electric-type slurry and pestle pressure milling.

End Mills

Glue mills consist of a pestle mounted unconventionally on a ceramic, rock, or mineral mortar, which is rotated on a motor. The shafts of the pestles rotate through wear and are allowed to move up and down in the mortar, so their grinding activity includes both rotation and shear, whereby the material is crushed and rubbed between them and the rotating mortar.

Spring-stacked scrubbers ensure a constant return of the material to the crushing area and separate the pulp from the pulp at the end of the event for sanitization and cleaning.

Furthermore, end-flush mills produce fairly fine powders that are effective in processing wavy materials, bark, natural wood products, leaves, and more.

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Edge Runner Mills or Milling machine

Edgers, also known as chile mills or cylindrical stone mills, consist of a pair of heavy-duty steel or rock rollers mounted on flat shafts and a vertical shaft on a steel or stone base. The width of the stones can vary from 0.5 to 2.5 meters, the largest of which can reach around 6 tons.

The washers ground the material through their impeller path. Part of the reduction is fragmentation: due to the weight of the stone, but more wear between the contact surface of the runner and the bedrock.

Development of edging machine

This diagram shows the evolution of edgers. It consists of two heavy drums and can measure several tons. Moreover, the rollers continue on a bed made of stone or rock. Each pulley has a focal axis and rotates on its axis. 

Edging runner work

The material to be ground is placed on the bed. The stone spins on the battle axe while moving around the shallow rock. The outside of the wheel has to travel a longer distance, so shearing reduces the size while cracking reduces it inside. Grind the material for a positive period. However, this is a cluster reaction.

Advantages of end mills and edge mills

1. Making fine particles
2. No need to consider this during the event.
3. Less attention during grinding activities
4. Used in plant products, while more modern factories use synthetic compounds and drugs

Disadvantages of runner end mills and edge mills

1. Unreasonable grinding rubber
2. Noise pollution caused by machine vibration
3. It takes up more space than other commonly used grinders.
4. One can see contamination of the material with substances from the cylinder.
5. Grinding systems are boring.
6. Do not use adhesives.
7. Energy usage is very high