Coarse Granulation to Ultra-Fine Milling with Four easy-to-change rotor options

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Mikro® UMP Universal Mill

Universal, flexible milling systems allow operators to rapidly change rotor configurations to produce different materials or for frequently cleanings. Hosokawa’s Mikro® UMP Universal Milling Systems is a high speed impact mill designed to grind a wide range of materials for coarse granulation to ultra-fine powders. Mikro UMP mills have similar performance to Hosokawa’s Mikro Pulverizer Hammer & Screen Mill but with the added value of four rotor options: pin disks, hammer & screen, knives and attrition disks.

Design & Options:

  • Designed to mill down to D97 = 35 μm
  • Available with 1 HP to 40 HP
  • Models for processing 5 grams/batch and up to 3,000 lbs/hour
  • Suitable for pharmaceutical, food & chemical applications
  • Efficient operation/Low energy requirement
  • Fabricated stainless steel construction with 0.6 micron Ra finishes available
  • Variable speed rotor drive
  • Cantilevered design for easy cleaning & rotor changes

Interested in the Mikro® UMP Universal Mill

Hosokawa’s applications engineers can answer all your size reduction questions

Resources

The Mikro® UMP Universal Milling System utilizes the same design and operating principles perfected in the original Mikro Pulverizer® Hammer & Screen Mill. The Mikro® UMP was developed to meet the increased market demand for high performance machines for multiple applications. An interchangeable grinding mechanism for flexible particle size distribution is a key feature to this machine’s design. Multiple feed and collection options further enhance the flexibility of the Mikro® UMP Universal Milling System across food, pharmaceutical and chemical applications.

Photo GAllery

See our Universal Mill gallery with different models, sizes and configurations.

Grinding Chamber

The fabricated grinding chamber is constructed in 316 stainless steel with a high quality 0.6 micron Ra finish. Higher quality finishes are available for specialty applications. The access door is hinged to the grinding chamber and is secured with a tri-clamp connection for easy and quick inspection and cleaning.

The bearing housing is a cantilevered design and includes maintenance free, sealed for life bearings. There are double lip seals and a gas purge between the drive and process areas to eliminate material contamination and premature wear to drive components.

Pin Disc

A pin disc assembly includes a stationary pin rotor disc mounted to the inside door cover and a rotating pin disc mounted to the main drive shaft of the mill. The pins interlace creating a labyrinth for materials to pass through when rotating. The rotors have a one piece pressed pin design to provide for ease of cleaning.

Hammer Rotor

This rotor produces the tightest particle size distribution of the Mikro® UMP grinding options. Material is pulverized by mechanical impact until the material is fine enough to discharge through the retaining screen. There are a variety of retaining screens and deflector liners available to produce the required size reduction and desired particle size distribution.

Rigid Knife

A fixed blade rigid rotor uses a cutting or impact force (depending on the orientation of the rotor) to reduce materials to coarse or granular powders. This option is well suited for large materials when a wider and coarse particle size distribution is necessary.

Attrition Disks

Hosokawa’s attrition plates are uniquely engineered to finely grind heat sensitive materials without cooling gas or liquid nitrogen. The serrated teeth of the rotating and stator plates create shear forces that cut materials into fine powders with a narrow particle size distribution.

Options & Accessories

  • Gravity or pneumatic conveying discharge available
  • Wear protection options include stellite, tungsten carbide, and other wear resistant materials.
  • Cryogenic operation available
  • Different rotor options available
  • High Speed Pin rotor for ultra-fine milling
  • Hammer & screen configuration for fine milling
  • Low speed knife rotor for coarse granulation
  • Variety of feeding options and system configurations
  • Isolator installations available for high-containment applications

Commonly Processed Materials

Designed for Chemical, Food, Pharmaceutical, Mineral, Cosmetic & Plastic applications

LFS Hammer Rotor

Thermo Plastic Polymer
Elastomers
HP Methylcellulose
HD Polyethylene
Herbicide
Polyester Resin
Polysaccharide
Vitamins
Lactose
Beans
Peas

Pin Rotor

Vitamins
Salt
Exchange Resin
Sodium Bicarbonate
Trona
Dextrose
Iron Based Food Additive
Potassium Phosphate
Enzymes (Cryogenic)

Knife Rotor

Iron Based Food Additive
Thermo Plastic Polymer
Gypsum
Polyester Resin

Attrition Disks

Polypropylene (PP)
Polyethylene (HDPE)
Polycarbonate (PC)
Polyvinyl Chloride (PVC)
Thermoplastic Polyurethane (TPU)
Polyamide (PA) Nylon
Polyetherketone (PEEK)
Liquid Crystal Polymer (LCP)
Ethylene Vinyl Alcohol (EVA)
Acrylonitrile Butadiene Styrene (ABS)
Polystyrene (PS)

This is a short list of materials the Mikro® UMP Universal Mill can process. Hosokawa has conducted thousands of successful material tests on this mill.

Mikro® UMP Universal Mill Models

Hammer & Screen (LFS)

LPM-2
UMP-B
UMP-1
UMP-2
UMP-3
UMP-4
HP 1
2
10
20
-
-
Rotor RPM – Max
36,000
14,000
9,600
6,900
-
-
Scale Factor
-
0.2
1
2
-
-
Air Flow - SCFM
18
50
120
500
-
-
Max. Pressure Drop (in WC)
1.4
11
12
12
-
-

Pin Disc Rotor

LPM-2
UMP-B
UMP-1
UMP-2
UMP-3
UMP-4
HP 1
2
10
20
40
60
Rotor RPM – Max
36,000
27,000
17,500
12,000
7,400
5,500
Scale Factor
-
0.2
1
2
4
6
Air Flow - SCFM
22
35
90
240
590
1050
Max. Pressure Drop (in WC)
1.4
14
17
17
18.9
18.8

Knife Rotor

LPM-2
UMP-B
UMP-1
UMP-2
UMP-3
UMP-4
HP -
2
10
20
-
-
Rotor RPM – Max
-
14,000
9,600
6,900
-
-
Scale Factor
-
0.2
1
2
-
-
Air Flow - SCFM
-
45
140
470
-
-
Max. Pressure Drop (in WC)
-
5
7
7
-
-

Attrition Plates

LPM-2
UMP-B
UMP-1
UMP-2
UMP-3
UMP-4
HP
-
2
10
20
40
60
Rotor RPM – Max
-
20,500
14,000
9,600
6,000
4,500
Scale Factor
-
0.2
1
2
4
6
Air Flow - SCFM
-
25
45
220
250
440
Max. Pressure Drop (in WC)
-
5
6
6
6.1
6.1

System Configuration

INTERESTED IN OTHER SIZE REDUCTION SYSTEMS OR POWDER PROCESSING SOLUTIONS?

Hosokawa offers • Hammer, Air Classifying, Jet, Ball, Pin and Knife Mills • Classifiers & Separators • Mixers, Blenders & Drying Equipment • Granulation & Compaction Technology • Lab & Analytical Testing Equipment

CONTACT US

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Please complete our contact form or call Hosokawa at (908) 273-6360.

made-in-the-usa-119x115

Designed, Manufactured, and Assembled in the USA
The Mikro® UMP Universal Milling System is an innovative mill, based on the design of a Mikro Pulverizer® Hammer & Screen Mill. It combines the performance and versatility of a hammer & screen mill and a pin mill. It is designed, manufactured and assembled in the USA and comes with our pledge to performance and guaranteed dependability.

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