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    The CryoMill is tailored for cryogenic grinding. The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the grinding process. Thus the sample is embrittled and volatile components are preserved. The liquid nitrogen circulates through the system and is continually replenished from an Autofill system in the exact amount which is required to keep the temperature at -196 °C.
    Powerful impact ball milling results in a perfect grinding efficiency. The Autofill system avoids direct contact with LN2 and makes cryogenic grinding very safe. Its versatility (cryogenic, wet and dry grinding at room temperature) makes the CryoMill the ideal grinder for quantities up to 20 ml.

    You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Animal Feed, Bones, Chemical Products, Food, Hair, Oil Seeds, Paper, Plant Materials, Plastics…

    Product Advantages

    • Powerful cryogenic grinding by impact and friction, up to 30 Hz
    • 3 different grinding modes (cryogenic, dry or wet at ambient temperature)
    • Closed LN2-system (autofill) for enhanced safety, avoids any contact of the user with LN2
    • Screw-top grinding jars for convenient, leak-proof operation
    • Wide range of accessories including various LN2 feeding systems, jar and ball sizes, adapter racks, materials
    • Low LN2-consumption
    • Clearly structured user interface, memory for 9 SOPs
    • Programmable cooling and grinding cycles (10 s to 99 min)
    • Ceramic jar available

    Function Principle

    The grinding jar of the CryoMill performs radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jar and pulverize it.

    The grinding jar is continually cooled with liquid nitrogen from the integrated cooling system before and during the grinding process.

    Applications: Size Reduction, Mixing, Homogenization, Cell Disruption
    Field of Application: Agriculture, Biology, Chemistry / Plastics, Construction Materials, Engineering / Electronics, Environment / Recycling, Food, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Feed Material: Hard, medium-hard, soft, brittle, elastic, fibrous
    Size Reduction Principle: Impact, friction
    Material Feed Size: <= 8 mm
    Final Fineness: ~ 5 µm
    Batch Size / Feed Quantity: Max. 20 ml
    No. of Grinding Stations: 1
    Setting of Vibrational Frequency: Digital, 5 – 30 Hz (300 – 1800 min-1)
    Typical Mean Grinding Time: 10 min / 4 min (cooling / grinding)
    Grinding Type: Wet or Dry
    Cell Disruption with Reaction Vials: Yes
    Type of Grinding Jars: Screw top design
    Material of Grinding Tools: Hardened steel, stainless steel, zirconium oxide, PTFE
    Grinding Jar Sizes: 5 ml / 10ml / 25 ml / 35 ml / 50 ml
    Autofill: 50 l
    Setting of Grinding Time: Digital, 30 s – 99 min
    Storable SOPs: 9
    Electrical Supply Data: 100-240 V, 50/60 Hz
    Power Connection: 1-Phase
    Protection Code: IP 30
    Power Consumption: 260 W
    W x H x D Closed: 395 x 373 x 577 mm (D: 710 mm with exhaust tube)
    Net Weight: ~ 45 kg

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  • The Emax is an entirely new type of ball mill for high energy milling. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Alloys, Bones, Carbon Fibers, Catalysts, Cellulose, Cement Clinker, Ceramics, Chemical Products, Clay Minerals, Coal, Coke, Concrete, Fibers, Glass, Alloys, Cellulose…

    Product Advantages

    • Faster and finer grinding than any other ball mill
    • Speed of 2000 min-1 allow for ultra-fast pulverization of the sample
    • Water cooling permits continuous operation without cool down breaks
    • Temperature-controlled grinding
    • Narrow particle size distribution thanks to special jar design which improves mixing of the sample
    • Patented drive concept
    • Easy operation via touch screen, 10 SOPs storable
    • Operation with 2 grinding jars
    • Easy installation of grinding jars
    • Jars with integrated safety closure
    • Range of jar materials allow for contamination free grinding

    Function Principle

    The novel size reduction mechanism of the Emax unites the advantages of different mill types: high-frequency impact (mixer mill), intensive friction (vibratory disc mill) and controlled circular jar movements (planetary ball mill) allow for unrivaled grinding performance. This unique combination is generated by the oval shape and the movement of the grinding jars. The grinding jar supports are mounted on two discs respectively which turn in the same direction. As a result, the jars move on a circular course without changing their orientation.

    The interplay of jar geometry and movement causes strong friction between grinding balls, sample material and jar walls as well as a rapid acceleration which lets the balls impact with great force on the sample at the rounded ends of the jars. This significantly improves the mixing of the particles resulting in smaller grind sizes and a narrower particle size distribution than has been possible to achieve in ball mills so far.

    Applications: Nano Grinding, Size Reduction, Homogenizing, Mechanical Alloying, Colloidal Milling, High Energy Comminution
    Field of Application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Feed Material: Medium-Hard, Hard, Brittle, Fibrous – Dry or Wet
    Size Reduction Principle: Impact, Friction
    Material Feed Size: <5 mm
    Final Fineness: 80 nm
    Batch Size / Feed Quantity: max. 2 x 45 ml
    Speed at 50 Hz (60 Hz): 300 – 2000 min-1
    Cooling: Controlled integrated water cooling / option: external chiller
    Temperature Control: Yes (min and max temperature may be defined)
    No. of Grinding Stations: 2
    Type of Grinding Jars: With integrated safety closure devices
    Material of Grinding Tools: Stainless Steel, Tungsten Carbide, Zirconium Oxide
    Grinding Jar Sizes: 50 ml / 125 ml
    Setting of Grinding Time: 00:01:00 to 99:59:59
    Interval Operation: Yes, with optional direction reversal
    Interval Time: 00:01:00 to 99:59:59
    Pause Time: 00:01:00 to 99:59:59
    Storable SOPs: 10
    Interface: USB / LAN ( RJ45)
    Drive: 3-phase asynchronous motor with frequency converter
    Drive Power: 2600 W
    Electrical Supply Data: Different Voltages
    Power Connection: 1-Phase
    Protection Code: IP 30
    Power Consumption: ~ 3100W
    PW x H x D Closed: 625 x 525 x 645 mm
    Net Weight: ~ 120 kg
    Standards: CE

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    The mixer mill MM 200 is a compact versatile benchtop unit, which has been developed specially for dry grinding of small amounts of sample.
    It can mix and homogenize powders in only a few seconds. It is also perfectly suitable for the disruption of biological cells as well as for DNA/RNA extraction.

    You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Alloys, Animal Feed, Bones, Ceramics, Cereals, Chemical Products, Coal, Coke, Drugs, Glass, Grains, Hair, Minerals, Oil Seeds, Ores, Paper, Plant Materials…

    Product Advantages

    • Reproducible, efficient grinding, mixing and homogenization in seconds
    • Powerful grinding by impact and friction, up to 25 Hz for up to 20 samples per run
    • 9 SOPs can be stored
    • Wide range of accessories including various jar and ball sizes, adapter racks, grinding tool materials

    Function Principle

    The grinding jars of the MM 200 perform radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jars and pulverize it. Also, the movement of the grinding jars combined with the movement of the balls result in the intensive mixing of the sample.
    The degree of mixing can be increased even further by using several smaller balls. If several small balls are used (e.g. glass beads) then, for example, biological cells can be disrupted. The large frictional impact effects between the beads ensure effective cell disruption.

    Applications: Size Reduction, Mixing, Homogenization, Cell Disruption
    Field of Application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Food, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Size Reduction Principle: Impact, Friction
    Material Feed Size: <= 6 mm
    Final Fineness: ~ 10 µm
    Batch Size / Feed Quantity: max. 2 x 10ml
    No. of Grinding Stations: 2
    Setting of Vibrational Frequency: Digital, 3 – 25 Hz (180 – 1500 min-1)
    Typical Mean Grinding Time: 30 s – 2 min
    Dry Grinding: Yes, dry only
    Cell Disruption with Reaction Vials: Yes, up to 10 x 2.0 ml
    Type of Grinding Jars: With push-fit lid
    Material of Grinding Tools: Hardened Steel, Stainless Steel, Tungsten Carbide, Agate, Zirconium Oxide, PTFE
    Grinding Jar Sizes: 1.5 ml / 5 ml / 10 ml / 25 ml
    Setting of Grinding Time: Digital, 10 s – 99 min
    Storable SOPs: 9
    Electrical Supply Data: 100-240 V, 50/60 Hz
    Power Connection: 1-Phase
    Power Consumption: 100 W
    W x H x D Closed: 371 x 266 x 461 mm
    Net Weight: ~ 25 kg
    Standards: CE

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    The mixer mill MM 400 is a compact versatile bench-top unit, which has been developed specially for dry, wet and cryogenic grinding of small amounts of sample.
    It can mix and homogenize powders and suspensions in only a few seconds. It is also perfectly suitable for the disruption of biological cells as well as for DNA/RNA and protein extraction. With its high performance and great flexibility the mixer mill MM 400 is a unique product in the market.

    You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Alloys, Animal Feed, Bones, Ceramics, Cereals, Chemical Products, Coal, Coke, Drugs, Electronic Scrap, Glass, Grains, Hair, Minerals, Oil Seeds, Ores, Paper, Plant Materials, Plastics…

    Product Advantages

    • Reproducible, efficient grinding, mixing and homogenization in seconds
    • Powerful grinding by impact and friction, up to 30 Hz for up to 20 samples per run
    • 3 different grinding modes (dry, wet or cryogenic)
    • Screw-top grinding jars for leak-proof grinding
    • 9 SOPs can be stored
    • Wide range of accessories including various jar and ball sizes, adapter racks for single use vials and tubes, grinding tool materials, CryoKit
    • Efficient cell disruption of max. 240 ml cell suspension for DNA/RNA- and protein extraction
    • Isolation of bacteria from tissue in 8 x 30 ml bottles or 10 x 5 ml vials for accurate diagnosis of infections

    Function Principle

    The grinding jars of the MM 400 perform radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jars and pulverize it. Also, the movement of the grinding jars combined with the movement of the balls result in the intensive mixing of the sample.

    The degree of mixing can be increased even further by using several smaller balls. If several small balls are used (e.g. glass beads) then, for example, biological cells can be disrupted. The large frictional impact effects between the beads ensure effective cell disruption.

    Applications: Size Reduction, Mixing, Homogenization, Cell Disruption
    Field of Application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Food, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Size Reduction Principle: Impact, Friction
    Material Feed Size: <= 8 mm
    Final Fineness: ~ 5 µm
    Batch Size / Feed Quantity: max. 2 x 20ml
    No. of Grinding Stations: 2
    Setting of Vibrational Frequency: Digital, 3 – 30 Hz (180 – 1800 min-1)
    Typical Mean Grinding Time: 30 s – 2 min
    Grinding: Wet or Dry
    Cell Disruption with Reaction Vials: Yes, up to 20 x 2.0 ml
    Type of Grinding Jars: Screw Top Design
    Material of Grinding Tools: Hardened Steel, Stainless Steel, Tungsten Carbide, Agate, Zirconium Oxide, PTFE
    Grinding Jar Sizes: 1.5 ml / 5 ml / 10 ml / 25 ml / 35 ml / 50ml
    Setting of Grinding Time: Digital, 10 s – 99 min
    Storable SOPs: 9
    Electrical Supply Data: 100-240 V, 50/60 Hz
    Power Connection: 1-Phase
    Power Consumption: 150 W
    W x H x D Closed: 371 x 266 x 461 mm
    Net Weight: ~ 26 kg
    Standards: CE

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    The mixer mill MM 500 is a compact, versatile bench-top unit which has been developed specially for dry, wet and cryogenic grinding of up to 2 x 45 ml sample material within seconds.

    With a maximum frequency of 35 Hz, it generates enough energy to produce particles in the nanometer range. The robust high-performance drive makes the mill suitable for long-term grinding processes up to 99 hours. Hence, the MM 500 is the first mixer mill in the market to provide a real alternative to grinding in a planetary ball mill – with more comfortable handling and less warming effects.

    Application Examples

    Alloys, Animal Feed, Bones, Ceramics, Chemical Products, Coal, Coke, Drugs, Electronic Scrap, Glass, Grains, Hair, Minerals, Oil Seeds, Ores, Paper, Plant Materials, Plastics…

    Product Advantages

    • Machine
    • Powerful grinding by impact and friction with up to 35 Hz
    • Pulverization of two samples down to the nanometer range < 0.1 µm
    • Suitable for long-term grinding processes up to 99 h
    • Suitable for mechanochemistry applications
    • Batch size max. 2 x 45 ml
    • User-friendly clamping system
    • 3 different grinding modes (dry, wet or cryogenic)
    • Memory for 12 SOPs and 4 program cycles
    • Wide range of accessories including various jar and ball sizes, grinding tool materials, CryoKit
    • Convenient operation via 4.3″ touch display
    • Can be controlled via RETSCH App
    • Screw-Lock jars
    • Pressure-tight up to 5 bar
    • Grinding under inert gas (optional)
    • Jar design allows full use of the volume, also for wet grinding
    • Jars remain conveniently clamped for periodic sample extraction or visual checks

    Function Principle

    The grinding jars of the mixer mill MM 500 perform radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jars and pulverize it.

    Also, the movement of the grinding jars combined with the movement of the balls result in the intensive mixing of the sample. The degree of mixing can be increased even further by using several smaller balls.

    Applications: Mechanochemistry, Mechanical Alloying, Size Reduction, Mixing, Homogenization, Cryogenic Grinding
    Field of Application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Food, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Size Reduction Principle: Impact, Friction
    Material Feed Size: <= 10 mm
    Final Fineness: ~ 0.1 µm
    Batch Size / Feed Quantity: max. 2 x 45ml
    No. of Grinding Stations: 2
    Setting of Vibrational Frequency: Digital, 3 – 35 Hz (180 – 2100 min-1)
    Typical Mean Grinding Time: 30 s – 2 min
    Grinding: Wet or Dry
    Cell Disruption with Reaction Vials: Yes, up to 20 x 2.0 ml
    Type of Grinding Jars: Screw-lock with integrated safety closure devices
    Material of Grinding Tools: Hardened Steel, Stainless Steel, Tungsten Carbide, Agate, Zirconium Oxide, PTFE
    Grinding Jar Sizes: 50 ml / 80 ml / 125 ml
    Setting of Grinding Time: Digital, 10 s – 8 h
    Storable SOPs: 12
    Electrical Supply Data: 100-120V, 50/60 Hz; 200-230V, 50/60Hz
    Power Connection: 1-Phase
    Power Consumption: 750 W
    W x H x D Closed: 690 x 375 x 585 mm
    Net Weight: ~ 60 kg
    Standards: CE

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    Planetary Ball Mills are used wherever the highest degree of fineness is required. In addition to well-proven mixing and size reduction processes, these mills also meet all technical requirements for colloidal grinding and provide the energy input necessary for mechanical alloying. The extremely high centrifugal forces of a planetary ball mill result in very high pulverization energy and therefore short grinding times.

    The PM 100 is a convenient bench top model with 1 grinding station.

    You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Alloys, Bentonite, Bones, Carbon Fibres, Catalysts, Cellulose, Cement Clinker, Ceramics, Charcoal, Chemical Products, Clay Minerals, Coal, Coke, Concrete, Compost, Electronic Scrap, Fibres, glass…

    Product Advantages

    • Powerful and quick grinding down to nano range
    • Reproducible results due to energy and speed control
    • Suitable for long-term trials
    • 2 different grinding modes (dry and wet)
    • Optional pressure and temperature measuring system PM GrindControl
    • Wide range of materials for contamination free grinding
    • Safety Slider for safe operation
    • Perfect stability on lab bench thanks to FFCS technology
    • Innovative counter weight and imbalance sensor for unsupervised operation
    • Comfortable parameter setting via display and ergonomic 1-button operation
    • Automatic grinding chamber ventilation
    • 10 SOPs can be stored
    • Programmable starting time
    • Power failure backup ensures storage of remaining grinding time
    • Jars with O-type sealing for safe operation, pressure tight

    Function Principle

    The grinding jar is arranged eccentrically on the sun wheel of the planetary ball mill. The direction of movement of the sun wheel is opposite to that of the grinding jars in the ratio 1:-2.

    The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so-called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill.

    Planetary mills with a single grinding station require a counterweight for balancing purposes. In the Ball Mill PM 100 this counterweight can be adjusted on an inclined guide rail. In this way the different heights of the centers of gravity of differently-sized grinding jars can be compensated in order to avoid disturbing oscillations of the machine.

    Any remaining vibrations are compensated by feet with some free movement (Free-Force Compensation Sockets). This innovative FFCS technology is based on the d’Alembert principle and allows very small circular movements of the machine housing that result in an automatic mass compensation. The laboratory bench is only subjected to minimal frictional forces generated in the feet.

    In this way the PM 100 ensures a quiet and safe operation with maximum compensation of vibrations even with the largest pulverization forces inside the grinding jars and therefore can be left on the bench unsupervised.

    Applications: Pulverizing, Mixing, Homogenizing, Colloidal Milling, Mechanical Alloying
    Field of application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Feed material: Soft, hard, brittle, fibrous – dry or wet
    Size reduction principle: Impact, friction
    Material feed size* < 10 mm
    Final fineness*: < 1 µm, for colloidal grinding < 0.1 µm
    Batch size / feed quantity*: max. 1 x 220 ml, max. 2 x 20 ml with stacked grinding jars
    No. of grinding stations: 1
    Speed ratio: 1 : -2
    Sun wheel speed: 100 – 650 min-1
    Effective sun wheel diameter: 141 mm
    G-force: 33.3 g
    Type of grinding jars: “Comfort”, optional areation covers, safety closure devices
    Material of grinding tools: Hardened Steel, Stainless Steel, Tungsten Carbide, Agate, Sintered Aluminium Oxide, Silicon Nitride, Zirconium Oxide
    Grinding jar sizes: 12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml
    Setting of grinding time: Digital, 00:00:01 to 99:59:59
    Interval operation: Yes, with direction reversal
    Interval time: 00:00:01 to 99:59:59
    Pause time: 00:00:01 to 99:59:59
    Storable SOPs: 10
    Interface: RS 232 / RS 485
    Drive: 3-phase asynchronous motor with frequency converter
    Drive power: 750 W
    Electrical supply data: Different voltages
    Power connection: 1-phase
    Protection code: IP 30
    Power consumption: ~ 1250W (VA)
    W x H x D closed: 640 x 480 (780) x 420 mm
    Net weight: ~ 86 kg
    Standards: CE
    Patent / Utility patent: Counter weight (DE 20307741), FFCS (DE 20310654), SafetySlider (DE 202008008473)

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    Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of a planetary ball mill result in very high pulverization energy and therefore short grinding times.

    The PM 200 is a convenient bench top model with 2 grinding stations.

    You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Alloys, Bentonite, Bones, Carbon Fibres, Catalysts, Cellulose, Cement Clinker, Ceramics, Charcoal, Chemical Products, Clay Minerals, Coal, Coke, Concrete, Compost, Electronic Scrap, Fibres, Glass…

    Product Advantages

    • Powerful and quick grinding down to nano range
    • Reproducible results due to energy and speed control
    • Suitable for long-term trials
    • 2 different grinding modes (dry and wet)
    • Wide range of materials for contamination free grinding
    • Safety Slider for safe operation
    • Comfortable parameter setting via display and ergonomic 1-button operation
    • Automatic grinding chamber ventilation
    • 10 SOPs can be stored
    • Programmable starting time
    • Power failure backup ensures storage of remaining grinding time
    • Jars with O-type sealing for safe operation, pressure tight

    Function Principle

    The grinding jars are arranged eccentrically on the sun wheel of the planetary ball mill. The direction of movement of the sun wheel is opposite to that of the grinding jars in the ratio 1:-2.

    The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so-called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill.

    Applications: Pulverizing, Mixing, Homogenizing, Colloidal Milling, Mechanical Alloying
    Field of application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Feed material: Soft, hard, brittle, fibrous – dry or wet
    Size reduction principle: Impact, friction
    Material feed size* < 4 mm
    Final fineness*: < 1 µm, for colloidal grinding < 0.1 µm
    Batch size / feed quantity*: max. 2 x 50 ml
    No. of grinding stations: 2
    Speed ratio: 1 : -2
    Sun wheel speed: 100 – 650 min-1
    Effective sun wheel diameter: 157 mm
    G-force: 37.1 g
    Type of grinding jars: “Comfort”, optional areation covers, safety closure devices
    Material of grinding tools: Hardened steel, stainless steel, tungsten carbide, agate, sintered aluminium oxide, silicon nitride, zirconium oxide
    Grinding jar sizes: 12 ml / 25 ml / 50 ml / 80 ml / 125 ml
    Setting of grinding time: Digital, 00:00:01 to 99:59:59
    Interval operation: Yes, with direction reversal
    Interval time: 00:00:01 to 99:59:59
    Pause time: 00:00:01 to 99:59:59
    Storable SOPs: 10
    Measurement of input energy possible: Yes
    Interface: RS 232 / RS 485
    Drive: 3-phase asynchronous motor with frequency converter
    Drive power: 750 W
    Electrical supply data: Different voltages
    Power connection: 1-phase
    Protection code: IP 30
    Power consumption: ~ 1250 W (VA)
    W x H x D closed: 640 x 480 (780) x 420 mm
    Net weight: ~ 72 kg
    Standards: CE
    Patent / Utility patent: SafetySlider (DE 202008008473)

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    Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of planetary ball mills result in very high pulverization energy and therefore short grinding times.

    The PM 400 is a robust floor model with 4 grinding stations.

    You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.

    Application Examples

    Alloys, Bentonite, Bones, Carbon Fibres, Catalysts, Cellulose, Cement Clinker, Ceramics, Charcoal, Chemical Products, Clay Minerals, Coal, Coke, Concrete, Compost, Electronic Scrap, Fibres, Glass…

    Product Advantages

    • Powerful and quick grinding down to nano range
    • Reproducible results due to energy and speed control
    • Suitable for long-term trials
    • 2 different grinding modes (dry and wet)
    • Optional pressure and temperature measuring system PM GrindControl
    • Wide range of materials for contamination free grinding
    • Safety Slider for safe operation
    • Comfortable parameter setting via display and ergonomic 1-button operation
    • Automatic grinding chamber ventilation
    • 10 SOPs can be stored
    • Programmable starting time
    • Power failure backup ensures storage of remaining grinding time
    • Jars with O-type sealing for safe operation, pressure tight

    Function Principle

    The grinding jars are arranged eccentrically on the sun wheel of the planetary ball mill. The direction of movement of the sun wheel is opposite to that of the grinding jars in the ratio 1:-2 (or 1:-2.5 or 1:-3).

    The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so-called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill.

    Applications: Pulverizing, Mixing, Homogenizing, Colloidal Milling, Mechanical Alloying
    Field of Application: Agriculture, Biology, Chemistry, Construction Materials, Engineering / Electronics, Environment / Recycling, Geology / Metallurgy, Glass / Ceramics, Medicine / Pharmaceuticals
    Feed Material: Soft, hard, brittle, fibrous – dry or wet
    Size Reduction Principle: Impact, friction
    Material Feed Fize: < 10 mm
    Final Fineness: < 1 µm, for colloidal grinding < 0.1 µm
    Batch Size / Feed Quantity: max. 4 x 220 ml, max. 8 x 20ml with stacked grinding jars
    No. of Grinding Stations: 4 / 2
    Speed Ratio: 1:-2 / 1:-2.5 / 1:-3
    Sun Wheel Speed: 30 – 400 min-1
    Effective Sun Wheel Diameter: 300 mm
    G-force: 26.8 g
    Type of Grinding Jars: “Comfort”, optional areation covers, safety closure devices
    Material of Grinding Tools: Hardened Steel, Stainless Steel, Tungsten Carbide, Agate, Sintered Aluminium Oxide, Silicon Nitride, Zirconium Oxide
    Grinding Jar Sizes: 12 ml / 25 ml / 50 ml / 80 ml / 125 ml / 250 ml / 500 ml
    Setting of Grinding Time: Digital, 00:00:01 to 99:59:59
    Interval Operation: Yes, with direction reversal
    Interval Time: 00:00:01 to 99:59:59
    Pause Time: 00:00:01 to 99:59:59
    Storable SOPs: 10
    Measurement of Input Energy Possible: Yes
    Interface: RS 232 / RS 485
    Drive: 3-phase asynchronous motor with frequency converter
    Drive Power: 1.5 kW
    Electrical Supply Data: Different voltages
    Power Connection: 1-phase
    Protection Code: IP 30
    Power Consumption: ~ 2100 W (VA)
    W x H x D closed: 836 x 1220 (1900) x 780 mm
    Net Weight: ~ 290 kg
    Standards: CE
    Patent / Utility Patent: SafetySlider (DE 202008008473)

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