Mikro-Pulverizer

The Mikro-Pulverizer® consists of a high speed rotor assembly fitted with hammers. The grinding chamber is fitted with a cover containing a multiple deflector liner and a retaining screen at the point of mill discharge.
A screw mechanism is often used to introduce feed material into the grinding chamber. The grinding process is affected by three basic variables: the type of hammers, the rotor speed, and the size and shape of the screen opening.
There are two types of hammers: the “stirrup,” recommended where a fine particle size is desired; and the “bar,” which generates a coarser grind with a minimum of fines. Both types are tipped at the wearing edge with various abrasion resistant alloys. Rotor speed affects the fineness of the grind as follows: low speeds result in a coarse grind and high speeds produce a fine grind. Size and shape of the retaining screen openings also affect the product. In general, a finer screen opening will result in a finer grind. The retaining screen does not function as a sifting screen, except in coarse granulations.

Controlled Particle Size
Optimum particle size reduction can greatly affect chemical reaction speeds, solubility, weight, color, volume, appearance and strength of ground products. Mikro-Pulverizers® provide accuracy in particle size control because the grinding action is entirely mechanical. Once a mill is set to deliver a certain product, it will continue to produce exactly the same result without adjustment.

Grind, Blend and Disperse
Mikro-Pulverizers® grind, blend and disperse in a single operation. Intensive action thoroughly mixes dissimilar ingredients into a finished product. Heat sensitive materials are handled by adjustment of mill speed, hammers, screen and discharge air relief, as well as with pneumatic conveying. Conditioned air may be bled into a grinding chamber, or the feed may be pre-conditioned or chilled. The Mikro-Pulverizers® comes in many model sizes from small pilot scale to massive production models.

  • Mikro-Pulverizers® stand up under severe usage year after year, long after the mills have paid for themselves. Many units built over a half century ago are still in daily active service.
  • The Mikro-Pulverizer® is built to produce the same results 24 hours a day, day after day, avoiding costly downtime.
  • When installed and operated properly, the Mikro-Pulverizer® will be virtually free of dust due to the precision machined surfaces and the sealed feed mechanism.
  • Mikro-Pulverizer® mills offer substantial savings in power consumption over conventional size reduction methods. Payback often occurs through power savings alone. Precision construction, through close tolerance standards and balance of the moving parts, eliminates vibration. Mikro-Pulverizers® are remarkably compact considering the volume of product they typically handle.
  • Mikro-Pulverizers® process most materials without oversized particles or tailings. These results can be accomplished without auxiliary fans, air separators, classifiers, cyclones, ductwork, etc.
  • The design makes all parts of the mill easily accessible for fast cleaning and inspection.