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The Retsch high-speed Planetary Ball Mill PM 100 pulverizes and mixes soft, medium-hard and even extremely hard, brittle and fibrous materials. The PM 100 is a single-station unit suitable for jars from 12 ml to 500 ml. Both wet and dry grinding is possible. The Planetary Ball Mill can be used successfully in almost every field of industry and research, particularly where the requirements for purity, speed, reproducibility and fineness are very high.
The Planetary Ball Mill produce extremely high centrifugal forces with very high pulverization energies which results in short grinding times.
Product Advantages:
extreme speeds for particularly high final fineness
up to 50% higher energy input
grinding jar volumes from 12 ml to 500 ml
suitable for long-term trials and continuous use
safe and stable operation
reproducible results due to energy and speed control
10 combinations of grinding parameters can be stored
graphics display and ergonomic 1-button operation
automatic grinding chamber ventilation for grinding with solvents
2-year warranty, CE-conforming |
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The planetary ball mill PM 400 pulverizes and mixes soft, medium-hard to extremely hard, brittle and fibrous materials. Dry and wet grinding can be carried out. The high speed of 30 to 400 min-1 in combination with the very large sun wheel diameter of 300 mm guarantee extremely high fineness in a short time. With its powerful, maintenance-free drive the PM 400 is particularly suitable for long-term trials or – in the special version PM 400 MA-type – for mechanical alloying.
Product Advantages:
- extreme speeds for particularly high fineness down to submicron range
- 4 grinding stations for grinding 2, 4 or 8 samples simultaneously
- grinding jars with volumes from 12 ml to 500 ml, in 6 materials
- suitable for long-term trials and continuous use
- reproducible results due to energy and speed control
- direction reversal
- programmable starting time
- power failure backup ensures storage of remaining grinding time
- 1-button operation with graphic display
- 10 combinations of grinding parameters can be stored
- measurement of input energy helps to optimize grinding parameters
- automatic grinding chamber ventilation for cooling the grinding jars
- 2-year warranty, CE-conforming
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Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits
Grinding of materials in a tumbling mill with the presence of metallic balls or other media dates back to the late 1800's. Since that time, Metso
Minerals and its predecessor companies, MPSI, Sala, Marcy, Hardinge, Kennedy Van Saun (KVS), Denver Equipment, Allis Chalmers, Boliden
Allis, and Dominion Engineering, have designed and manufactured more than 8,000 grinding mills.
Metso overflow ball mill sizes range from 5 ft. x 8 ft. with 75 HP to 26 ft. x 41 ft. with 20,000 HP.
Normal feed size to a Metso Minerals ball mill is 80% passing 1/4" (6mm or finer) for hard ores and 80% passing 1" (25mm or finer) for soft ores.
Product size is typically 35 mesh or finer.
Operation
Ball mills operate either in open or closed circuit. Open circuit operation is best utilized when:
Another stage of grinding follows the mill
Reduction ratio is small
Feed material is already fine and one pass through the mill produces the desired results
Product size control is not critical and oversize material can be tolerated in the product |
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| Ball mills are the most effective laboratory mills for batch-wise, rapid comminution of medium-hard to very hard samples down to the finest particle sizes. The grinding can take place dry or wet. Grinding sets of many different materials are available. The mills can also be used for mixing and homogenisation. |
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Planetary ball mills are characterised by very fast and effective comminution. They have a wide range of applications. Ideal for lossless comminution down to extremely high levels of fineness < 0.1 µm. The grinding can take place dry, in suspension or under inert gas, depending on the application. They are also well suited for mixing and homogenising emulsions and pastes or for mechanical alloying in materials research.
As extension of the existing classic line Planetary Mills, FRITSCH offers a completely new dimension of high-tech milling with the new FRITSCH premium line: The grinding bowls sunk into the disk enable for the first time to achieve revolutionary rotation speeds of up to 1100 rpm at acceleration 95 times that of gravity. The result: significantly shorter grinding times and the finest possible grinding results down to the nano range. |
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The Alpine AHM is a universal, agitated ball mill with a horizontal cylindrical milling chamber for the continuous wet milling of particles up to finenesses in the sub-micron range. The AHM features a cylindrical milling chamber with cooling jacket and a modular design for product inlet, milling cylinder, and separation zone. The mill is easily accessible from all sides for cleaning and handling. Typical applications are chemicals, minerals, ceramics, metals, pigments, foodstuffs, and pharmaceuticals.
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Mineral Processing
FGD - plant
Czechia
2x ball mill SBc280x625
wet process
discharge type: over flow
installed capacity 630 kW
mean size F80 7000 µ
mean size P80 22 µ |
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The new RETSCH Ultra-Centrifugal Mill ZM 200 is used for the rapid reduction in size of soft to mediumhard and fibrous materials. As a result of the effective pulverization technique and the wide range of accessories the ZM 200 ensures the gentle preparation of analytical samples in a very short time.
Product Advantages:
versatile in use due to wide range of accessories
high final fineness
wide speed range, adjustable from 6 000 to 18 000 min-1
considerably increased throughput due to optimally matched frequency converter and 3-phase motor
gentle and very rapid size reduction by 2-step rotor/screen system
quiet and reliable, easy to clean
comfortable parameter setting via display and ergonomic 1-button operation
comfortable safety housing with automatic cover closure
motor compartment and electronics protected against dust and material penetration
2-year warranty, safe design to CE standard
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Retsch Cross Beater mills are suitable for batchwise and continuous coarse and fine grinding. Medium-hard and brittle materials with a hardness of up to 6 Mohs can be milled. Retsch Cross Beater Mills are highly versatile: from preparing samples in the laboratory and industrial plants, through pilot installations in technical colleges to making batches in the production.
Product Advantages:
high throughput
high final fineness
versatile in use
easily changeable bottom sieves
wide range of accessories
maintenance-free direct drive
safe design to CE standard
2-year warranty
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Retsch SM 2000 cutting mills are especially high performance and user-friendly machines for crushing tough, medium-hard, soft, elastic, brittle and fibrous materials. Running slowly or quickly with different rotors and hoppers, they crush a wide range of materials, eg:: waste samples, plastic parts, biological substances, food and animal feed and beverage cans. The SM 2000 mills are therefore ideal for research, testing and operational laboratories, for technical training facilities or for creating samples in production.
Further model: SM 100.
Product Advantages:
powerful size reduction, even of heterogeneous mixtures
defined final fineness
low heat build-up
wide range of accessories for universal use
central locking device
fold-back housing
easy cleaning
robust, safe design
2-year warranty, CE-conforming |
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In foodstuff laboratories, in chemical or biological research institutions - suitable analysis material is required everywhere for precise examination of foodstuffs. With the GRINDOMIX Knife Mill, Retsch now produces a grinding and homogenising machine that fulfills professional laboratory and analysis requirements. It processes foodstuffs with high water, oil or fat contents just as rapidly and reliably as dry, soft or medium-hard products. For the first time, Retsch provides a professional alternative to standard household mixers.
With the special cutting knife system and the variable grinding chamber of the Grindomix, the materials can be processed into an homogeneous analysis sample, quick and easy. Two straight knives at different heights, arranged at right angles to the direction of rotation, turn at a speed between 2,000 and 10,000 rpm in the centre of the mill vessel.
Product Advantages:
powerful speed-controlled 750 W industrial motor
speed pre-selectable, range 2000 - 10000 min-1
digital display of grinding time and speed
interval operation possible
three memory keys
gravity lid for automatic grinding chamber volume adaption
comprehensive range of accessories
sample vessel easy to clean and exchange
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Retsch mixer mills MM 400 are particularly suited for dry and wet grinding of small quantities of material. The mills are ideal for mixing and homogenizing powders and suspensions. They are excellently suitable for disrupting biological cells as well as for the isolation of DNA and RNA. The instruments are used in the field agronomy, biology, biotechnology, chemistry, ceramics, glass, medicine, pharmaceuticals, criminology, environment, mineralogy, metallurgy.
Further model: MM 200.
Product Advantages:
quick, efficient pulverization and homogenization
higher sample throughput due to short grinding times and two grinding stations
reproducible results by digital preselection of grinding time and vibrational frequency
large range of grinding jars
safe wet grinding without loss of material with screw-top grinding jars
simple and comfortable operation
memory keys for three parameter combinations
set parameters can be locked against accidental alteration
2-year warranty, CE-conforming
mixes or homogenizees two samples from 0.2 to 20 ml at the same time
processes up to 20 samples simultaneously |
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The SR 300 is the leader among the Rotor Beater Mills. Its high speed in comparison to the SR 200 allows a significantly higher throughput. The ground sample also has a larger fraction of fine material. Grinding chamber, feed hopper and material inlet and outlet are completely made from highquality stainless steel.
Product Advantages:
high throughput
high final fineness
versatile in use
easy cleaning
exchangeable grinding and sieve inserts
quick-action door lock and motor brake
safe design to CE standard
2-year warranty
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The Vibratory Disc Mill RS 200 is suitable for the extremely quick, loss-free and reproducible grinding of medium-hard, hard, brittle and fibrous materials to analytical fineness.
Grinding sets made from hardened chrome steel, tungsten carbide, agate and zirconium oxide permit a wide range of applications. The RS 200 is primarily used for sample preparation for spectral analysis.
Product Advantages:
- powerful Stabilized-Plane-Drive
- excellent reproducibility
- analytical fineness in seconds
- 1-button operation with graphics display
- 10 parameter combinations can be stored
- grinding tools in 5 different materials
- quick-action grinding set clamping device
- agate recognition for automatic speed reduction
- sealed, noise-insulated grinding chamber
- maintenance-free, CE-conforming design
- 2 year warranty
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| Sweco® Vibro-Energy® Grinding Mills are the most versatile line of mills available today for fast, low-cost particle size reduction to sub-micron range. Vibro-Energy grinding action achieves higher output per input horsepower; precise control of size and distribution. Product contamination from media and lining wear is virtually eliminated. Maintenance costs are low because of few moving parts and replaceable linings made of abrasion-resistant metal, ceramic or elastomers. |
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Cutting mills are particularly well suited for comminution of soft to medium-hard, fibrous or tough materials (including plastics). They are frequently also used in the preparation of heterogeneous substance mixtures and for sample preparation for RoHS and WEEE analysis. In this type of mill, samples are comminuted through cutting and shearing. The fineness is determined by a sieve insert.
Various knife geometries and replaceable blades ensure maximum flexibility and durability. Grinding parts of various steel types as well as of hardmetal tungsten carbide can be used for controlling the abrasion problems.
All grinding parts can be removed for cleaning in just a few seconds without tools – unbeatable fast, simple and efficient!
YOUR ADVANTAGES WITH FRITSCH CUTTING MILLS
- Especially simple operation for fast work
- Unmatched ease of cleaning thanks to patented quick opening facility
- Optimum airflow for particularly fast grinding and secure protection against clogging
- More stable running and low wear due to the patented double cone bearing of the rotor
- Exceptionally long service life through use of replaceable and fixed knives
- Unique grinding chamber geometry: minimal dead space and progressive cutting geometry between the rotor and the fixed knives – for faster and simpler operation
- Grinding parts with different cutting geometries and materials - perfectly adjustable to your application
By the way:
FRITSCH Cutting Mills are available in different configurations – for each application the perfect Mill! |
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The RETSCH Disc Mill DM 200 is used for batchwise or continuous preliminary and fine comminution of medium-hard to hard-brittle solids (up to 8 Mohs). Thanks to its robust design, it can be used under rough conditions in laboratories and pilot plants, as well as online for the quality control of raw materials.
Product Advantages
- accurate gap setting for reproducible grinding results
- short grinding times, high final fineness
- observation window for checking the gap width
- good grinding chamber accessibility
- contamination-free grinding with grinding discs made from 4 different materials
- grinding discs with long working life
- simple operation
- dust-free grinding and easy cleaning
- maintenance-free 3-phase geared motor
- approved safety (TÜV, CE)
- 2 year warranty
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| Beater mills are suitable for medium-hard, brittle or less temperature-sensitive samples (including plastics) due to the high grinding energy. The material is comminuted through impact and collision forces. For control of the wearing and abrasion, rotors of titanium or with a titanium nitride coating can also be used in place of hardened steel. Similar to the cutting mill, the fineness is determined by a sieve |
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As a reaction to the increasing, worldwide requirements of the good manufacturing practice (GMP), NARA improves its pharmaceutical mill, SCM (Super Clean Mill) continually. It is based on the principle of a conventional pin mill (impact type pulverizer), which suits the requirements of GMP in the pharmaceutical and the foodstuffs industry.
The next generation mill, NARAs New SCM, is characterised by disk-structured components, which are positioned on bars. By the release of handwheels only, the complete assembly can be dismantled easily and by one person. The low heat increase during milling as well as the easy adjustment of the particle size by screen insets, the simple structure for fast and easy cleaning and maintenance are some of the specific features of this machine. The mill is equipped with various constructional elements, to prevent contamination e.g. the execution of the air-purged shaft sealing, the direct drive and the spatial separation from milling area and drive unit.
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Versatility and robustness
Open-type rotor granulator designed for recovery of defective pieces and sprues in a closed circuit beside the injection moulding machines. Rotor with a 200 mm diameter and length ranging from 200 mm to 450 mm.
Customer oriented solutions.
Hopper Versatility
> manual feeding as well as feeding from robot or conveyor belt
> Feed port complete with device that prevents return of material to grind
> Large funnel for easier feeding
> Possibility of feeding pieces up to a size of a maximum of 600 mm
Quality of the regrind
no dust and uniform size, thanks to: > drains to avoid powder build-up behind rotating discs
> two lateral discs running with the rotor, to eliminate friction of the material to be ground against the chamber sides, avoiding deformation from stress.
Silent functioning
(extremely reduced sound levels, below 80 dB(A) for most polymers used)
> progressive cutting action
> soundproofing panels |
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The Silverson Multishear Mill has been specifically developed to meet the requirement for a high speed machine which eliminates, as far as possible, the need for conventional media or colloid milling.
The Multishear Mill differs from Silverson's standard In-Line mixers in that its rotor consists of three or four sets of finely machined teeth running against three or four sets of stators.
This multistage rotor/stator workhead provides intense high shear with a three stage machine performing over 3 million individual shearing actions per second and a four stage machine over 5 million per second.
This high degree of shear eliminates the need for conventional media milling, except on the hardest of solids. However, even if conventional milling is still needed, rapid pre-milling by the Silverson Multishear Mill will enable the product to be passed through the conventional media mill at a much faster rate. This is because most media mills work best when fed with a product of a uniform and low particle size. The total process time therefore will still be only a fraction of what would be needed by conventional methods alone.
Typical applications
- Pigments
- Dyestuffs
- Presscakes
- Titanium dioxide
- Bone slurries etc.
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Hosokawa Micron Powder Systems offers a broad range of size reduction mills to handle all fine grinding industrial mineral applications. The selection includes conventional ball mill /classifier systems with new high-tech features that extend the fineness range to below D97 at 5 microns. For softer mineral fillers such as PCC, talc and fine kaolin we offer both the renowned Mikro-ACM and Mikro-LGM air classifier mills.
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Mineral Processing
Limekiln
Germany
1x impact hammer mill PHM1012
rotor diameter 1000 mm
rotor width 1200 mm
input 6.3 mm
output 0.8 mm
limestone 60 t/h |
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From lab/pilot to production requirements, Hosokawa Micron Powder Systems offers a complete line of scaleable size reduction technology for the chemical process industries.
Whether you call it size reduction, milling, pulverizing, jet milling, air milling, or simply grinding, we can help. Our broad application expertise allows us to help you select the technology that works best for your application. We are flexible enough to design and supply a complete system for the most unique applications yet our standard offerings are economical and acceptable for most chemical grinding applications.
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| Laboratory roll mills are machines for testing the quality and processing characteristics of polymer material by means of discontinuous plastification, mixing or kneading. In both, plastics and rubber processing as well as processing of ceramics or special materials, roll mills by Dr. Collin are setting new standards in terms of precision and reliability. |
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Mineral Processing
Building material plant
Russia
1x roller mill WM1012
rotor diameter 1000 mm
rotor width 1200 mm
input 5-20 mm, 5-40 mm
output <8 mm
limestone
clay 60 m³/h |
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The Labtech Essa 450mm diameter Hammer Mill is designed to reduce approximately 50mm diameter drill core or lump ore to 100% minus 2mm with approximately 80% minus 250 micron.
It is supplied as standard complete with 7.5kW direct drive motor, lead, plug, stand and dust hoods. A blow down air system to reduce cross contamination between samples is also supplied as standard.
All wearing parts are readily replaceable.
Pneumatic or electromagnetic disc braking is available as an optional extra. This provides for safer operation and allows rapid cleaning between samples if required. |
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Plain and tooth rolls for intermediate size reduction.
Labtech Essa rolls crushers are designed for rapid, controlled size reduction of ore, mineral or rock prior to metallurgical testing or further milling or grinding. They are typically applied in laboratory or pilot plant applications after primary production of the infeed material in a jaw crusher or similar. The nipping action of two off same diameter individually powered contra-rotating rolls produces an ideal crushing environment for a wide variety of materials. Product sizing is controlled by an (adjustable) gap setting between the two rolls. One roll is heavy duty spring mounted as protection against uncrushable material attempting to pass between the rolls. Roll crushers operate with a minimum of dust generation and produce a material with a tight size envelope containing a minimum of fines. |
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Fluidised Bed Opposed Jet Mill AFG
Dry Processing – Micronising + Air Classifying
Fluidised bed opposed jet mill for manufacturing powders with a steep particle size distribution and sharp top size limitation in the range
< 5 µm to 200 µm.
Grinding nozzles arranged around the periphery of the grinding chamber.
Classifying wheel(s) arranged horizontally in the classifier top section.
Cool and contamination-free grinding.
Cleaning made easy by the hinge-back and removable classifier top section and the inspection deck in the mill housing.
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All ingor sand mills are efficient ultra micro wet grinding and dispersing machines being widely used for producing: coating, dyestuff, paint, ink, medicine, magnetic powder, sensitive film, pesticide, cosmetics, paper making and so on. Ingor sand mills have high efficiency, and can work continuously producing less pollution.
There are three specific models for different applications and products:
- Standard horizontal mills
- Refrigerated horizontal mill. This equipment has a grinding chamber with refrigerating jacket suitable for products sensitive to temperature.
High viscosity product horizontal mills. Suitable for products having a high viscosity and temperature sensitive. |
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Grinders
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