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

Alpine AS

The Alpine AS spiral jet mill is designed for the micronization of pharmaceutical powders. Particle sizes as low as a D97 of 2-3 microns can be achieved. The one-piece easy clean design permits ease and thoroughness of cleaning. Other design features available include:

  • Monoblock construction, free of dead spaces and welding seams
  • Vertical mount, for complete drainage during CIP operations
  • Compact design including triclamps for easy access connection sockets for quick assembly and disassembly.
  • Grinding action performed by nozzles integral to the grinding ring, thus avoiding additional protrusions into the grinding zone.

As indicated by the schematic on the left, material is injected into the grinding zone and accelerated by means of an injection gas nozzle. Material flows around the perimeter of the mill wall in a spiral manner. As material passes each additional high pressure gas port it is reduced by particle-to-particle attrition and by impact against the mill wall. As the product is reduced, it becomes lighter in density, and eventually via free vortex centrifugal classification, exits the mill chamber.

The Alpine AS spiral jet mill is available in a variety of designs dependent upon the overall system requirements. These design options include the following:

  • PSR11 (Pressure Shock Resistant) to 10 bar(g)
  • Complete CIP and SIP systems capability.
  • Fabricated housings available in surface finishes as high as 0.2 micron Ra
  • Inert gas operation, either once through nitrogen flow or closed loop operation

Alpine AS spiral jet mills can also be integrated into Stott isolators. This arrangement provides a completely integrated system capable of containment levels as low as 1 microgram/cubic meter.