Industrial Milling Equipment

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Milling machines are used to reduce the size of material by cutting, crushing, or grinding it. The choice of industrial milling equipment depends on the industry and the materials to work with. Besides, there is a significant difference between those aimed to remove layers from metal or other materials workpieces and those designed to reduce particle size for materials that come in bulk.

What are you making?

Agitated media mills

Ball mills

Classifier mills

Continuous milling solutions

Fine impact mills

Industrial hammer mills

Industrial jet mills

Laboratory mills

Pellet Mills

Stone Mills

Two main types of milling equipment for the metal manufacturing industry

In metal works the mill equipment removes material from a metal piece by cutting or shaping it with rotating multi-point cutters. The orientation of the cutters is what makes these machines different. They can move in a horizontal or vertical axe, giving the name to horizontal milling and vertical milling machines, which are the main configuration of these machines. They are suited to precision work and can be manual, semiautomatic, or fully automatic by computerized numerical control (CNC).

With the milling equipment, you can make plane, two-dimensional and three-dimensional surfaces, for many industrial parts.

High-precision machines need cooling while working

These milling machines are very precise in their cuts and shapes, in addition, they give great surface finish thanks to the speed and other variables. The high speed of the cutting tool and the friction between the tool and the workpiece generate heat, being necessary to use a coolant throughout the entire process.

Nowadays the machining centers are full of CNC milling equipment that are more efficient, highly accurate, and safe to use. They are also great for special designs, dimensions, and materials, for micro machining as well as for large and heavy-duty operations. But you can still find manual and semiautomatic technology for low-complexity shapes.

Milling equipment for crushing and grinding bulk material

The milling equipment used for bulk material is designed to crush or grind the different materials to reduce their size in smaller particles, even into powder. You can find milling machines for grains, minerals, wood, composites, and many other materials. Your selection of milling equipment depends on the type of materials you are going to process, and the desired particle size.

Industries such as feed, food, pharmaceuticals, and mining, use mainly hammer mills, roller mills, ball mills, agitated media mills, jet mills, and classifier mills in their processes.

Temperature and speed are important variables to control in the hammer mill

A hammer mill has a horizontal rotor with a shaft that contains hammers, also called blades or knives. These are the elements that crush or grind the bulk material, that rotates with a speed that is settled according to the material that is being processed. This machine also contains a screen that filters the crushed material and ensures that only the particles with the desired size pass through.

The hammer mill needs to have sensors of speed and temperature to keep in good conditions the machine as well as the raw material, moreover to control the variables of the process. Choose a hammer mill with easy access to the chamber to do maintenance and reparations, furthermore replace the hammers frequently to guarantee their sharpness and good state.

This mill equipment is an important part of the process line of feed, food, chemicals, and cosmetics.

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Roller mills need more maintenance but are great for large productions

A roller mill has one or more cylindrical rollers or wheels, that rotate to crush or grind the materials by friction. They can be horizontal or vertically oriented. The horizontal roller mills have rollers placed parallel in the horizontal axe, turning in opposite directions and at different speeds, generating pressure and tear between them and the material that passes through. The vertical roller mills have a spinning plate or grinding table with rollers placed in its perimeter, which exerts vertical pressure on the material over the plate.

The roller milling equipment is great to grind grains, cement, clay, rocks, and other minerals. Due to the tear and wear of the rollers, it is important to have regular maintenance and replacement of the rollers, especially if they process abrasive materials. Is also important to adjust the gap between the rollers according to the material and particle size you need.

Ball mills should have balls denser and bigger than the material being processed.

The ball mills have a rotating drum with balls inside that spin around hitting the material as they drop. The impact of the balls against the material reduces the size of the particles. Choose the characteristics of the balls according to the raw material to process, they need to have a bigger size and bigger density than the product being ground. The balls’ material needs to be compatible with the product to avoid contamination, corrosion, or cause an explosion.

This milling equipment is good for turning into powder dry or wet material such as coal, cement, rocks, minerals, ceramics, pigments, and some metals.

A classifier mill equipment is an impact mill that integrates a particle classifier

The classifier milling system is a mix of an impact mill and a particle classifier. The principle of this milling machine is to reduce the particle size and automatically take out of the grinding zone those particles that have a specific reduced size, the others will come back to the grinding zone until they have the right size. Most of the classifier mills use air to classify the particles.

The classifier milling equipment is commonly used in pharmaceuticals, cosmetics, powder coatings, pigments, and other areas that need fine particles.