Alpine AFG

Alpine AFS

Alpine AHM

Alpine AL

Alpine APP

Alpine AS

Alpine Circoplex ZPS

Alpine Contraplex CW

Alpine Multiplex Zig-Zag Classifier

Alpine MZR

Alpine PDD Twin Screw Volumetric

Alpine Rotoplex Granulators

Alpine SO Super Orion

Alpine Stratoplex ASP

Alpine TFG

Alpine Toner TSP High Efficiency Toner Classifier

Alpine Toner TTSP High Efficiency Tandem Toner Classifier

Alpine TTC

Alpine TTG

Alpine Turboplex ATP High Efficiency Classifier

Alpine UPZ

Alpine Ventoplex High Volume Classifier

Carbon Black Processing

Flue Gas Desulfurization

Hosokawa Bepex Pharmapaktor

Hosokawa Peneto Analyzer PNT-N

Hosokawa Powder Characteristics Tester PT-X

Majac Acucut High Energy Air Classifier

Micron Agglomaster AGM

Micron Air Jet Sieve

Micron Denspack

Micron Drymeister

Micron Faculty

Micron Finetron Feeder

Micron Mechanofusion

Micron Nobilta

Micron Penetration Analyzer

Micron Pulvis

Micron Separator

Micron Victory Mill

Mikro ACM Air Classifying Mill

Mikro Bantam Hammer & Screen Mill

Mikro Classifier CC

Mikro High Efficiency Cyclone

Mikro LPM

Mikro Pneumatic Vibratory Feeder PF

Mikro-Atomizer

Mikro-Crusher

Mikro-LGM

Mikro-Pulverizer

Stott Hygienic Bulk Packaging Systems

Stott Laminar Flow Booth

Universal Mikro Pulverizer

Vitalair Downflow Booths

Vrieco-Nauta Active Freeze Dryer

Vrieco-Nauta Centro Screw Mixer (CM-Series)

Vrieco-Nauta Conical Screw Mixers

Vrieco-Nauta Cyclomix

Vrieco-Nauta Horizontal Ribbon Mixer

Vrieco-Nauta Isem Ball Segment Valves

Vrieco-Nauta Mixing Sensors

Vrieco-Nauta Silo Mixer

Vrieco-Nauta Vacuum Dryers

Vrieco-Nauta Vitomix

Mikro-LGM

The Mikro-LGM long gap mill assures superior product quality and peak operational efficiency. Built upon the strength of Hosokawa's unparalleled experience in size reduction, thermal processing and classification, the Mikro-LGM long gap mill is designed to meet the exacting demands of a wide variety of industrial applications.

Prior to the development of the Mikro-LGM long gap mill, materials had to be dried and de-agglomerated in two separate operations. For example, a rotary drum dryer was used to dry materials that had been wet milled. A separate grinding/de-agglomeration process followed the drying operation. The Mikro-LGM long gap mill is Hosokawa's solution for streamlining these two operations into one continuous process. This type of dryer is commonly referred to as a "gap" type mill. It is called a "long" gap mill because of the long annular gap path the process material takes from the inlet to the discharge. By combining several operations such as flash drying, de-agglomeration and surface coating into one operation, a Mikro-LGM long gap mill eliminates the need for multiple material handling systems which subsequently increases process efficiencies. The dried powders often do not require any further size reduction. Both slurries and wet cake can be handled.

The Mikro-LGM modular design expands its range of applications beyond drying and deagglomeration. For dry grinding, modular options include: direct and independent drive classifiers; pre-grind rotor stage; an integrated jet mill and variable stage rotor design. The smaller size Mikro- LGM Long Gap Mills are engineered with a split body housing for easy maintenance and cleaning. The Mikro-LGM long gap mill processes high moisture materials in wet cake form as well as dry solid feed stocks up to one inch. Finished product particle sizes of D97 < 10 microns can be achieved.

Typical Applications

  • Mineral Fillers
  • Carbon Black
  • Pigments
  • Chemicals
  • PVC Resin
  • Amorphous and Fumed Silica
  • Foodstuff
  • Minerals
  • Cryogenic Grinding of Rubber and Elastomers

Design Options

  • Variable rotor height to diameter ratios
  • Adjustable gap clearance
  • Frequency controlled rotor drive
  • Adjustable coarse extraction and recirculation device
  • Independent or single shaft internal classifier
  • Liquid injection device for coating application
  • Pre-grinding rotor for large feed material

The Mikro-LGM long gap mill has demonstrated superior performance over all other mechanical mills in reducing grit from pre-sized and agglomerated powders. Typical results are less than 1 part per million (ppm) residue on a 44 micron sieve starting from a feed stock with a residue of 120ppm.

This performance is achieved with a powerful grinding mechanism coupled with a precision internal air classifier. The air classifier is designed for a theoretical cut point of 2-5 microns, depending on the particle density. Rejected particles are forced away from the classifier wheel and redirected outside of the mill back to the material inlet using a patented re-circulation system.