CM1000 cutting mill

CM1000 Cutting Mill

The CM1000 Cutting Mill is used to grind solid materials such as rubber, plastic, wood, foils and many other materials.

CM1000 Cutting Mill side view

The CM1000 Cutting Mill is used to grind solid materials such as rubber, plastic, wood, foils and many other materials. The processing material falls into the cutting chamber via a guide chute and is shredded by cutting between rotating and fixed knives until it passes an attached sieve as ground product. The sieve extends over the lower half of the grinding chamber and can be changed easily. Final particle size is determined by the selected sieve perforation aperture. When the grinding process is finished the grinding chamber is fully accessible by unscrewing two hand screws and folding back the feeding hopper. The grinding chamber is fully accessible for quick and easy cleaning.

Feautures and Benefits

  • Rapidand efficient size reduction of large particles
  • Quick and easy to clean
  • Rapid sieve and knife changeover
  • The CM1000 can handle samples of up to 60Kg/h
CM1000 cutting mill bottom sieve placement close view

Technical Specifications

Applications separation of different materials, particularly minerals, by agitating a pulverized mixture of solids in liquids
Working principle cutting with rotating and stator knifes
Feed size Up to 100 mm depending on sample
End fineness < 500 μm*
Throughput Up to 60 Kgs per Hour*
Quantity minimum 100g
Speed setting 280rpm
Cutting chamber 250mm * 250mm
Setting adjustment method external start and stop button
Rotor material stainless steel, others on request
Bottom sieve material stainless steel, others on request
Bottom sieve sizes 4 - 20mm round holes
Rotor size diameter Ø 150mm, Length 200 mm
Number of rotor knifes 3
Number of stator knifes 2
Power supply 400V ± 10% - 50/60Hz
Electrical requirements 3-4 kW
Power connection 3 phase
Dust extraction point 1
Standard CE
Protection code IP40
Weight 230kg
Dimensions (width x length x height) 600 x 600 x 600 mm (with standard hopper)
*depending on feed material and instrument configuration/settings

Cutting Mill working principle

The LAARMANN CM1000 Cutting Mill is engineered for high-capacity size reduction in demanding laboratory and industrial environments. Designed for higher throughput than compact models, the CM1000 provides powerful and consistent grinding performance for plastics, rubber, wood, agricultural materials, and industrial waste samples.

The system features a robust cutting rotor with precision-mounted blades rotating at optimized speed to create intense cutting and shearing forces. Stationary knives enhance the scissor-effect mechanism, ensuring efficient and controlled particle size reduction.

Material enters through a reinforced feed hopper and undergoes repeated cutting cycles within the enclosed chamber until it passes through the selected bottom sieve. The adjustable sieve system enables accurate control over final particle size distribution.

The LAARMANN CM1000 Cutting Mill combines durability, safety, and easy maintenance, making it a reliable solution for laboratories and production facilities requiring increased sample throughput.

How it works

The material to be milled is fed into the cutting mill through the feed hopper. The feeding mechanism, if present, helps control the flow of material into the cutting chamber.

As the material enters the cutting chamber, it is caught by the rotating blades and subjected to cutting, shearing, and impact forces. The stationary knives assist in the cutting process by providing a counteraction to the rotating blades. The material is continuously cut and reduced in size as it moves through the chamber, with particles becoming progressively smaller until they can pass through the screen or sieve.

The final particle size is controlled by the size of the openings in the screen or sieve. Only particles that are small enough to pass through the screen are discharged from the mill, ensuring a consistent and uniform output. By changing the screen size or adjusting the blade configuration, the operator can achieve different particle sizes and textures.

The milled material is collected in a container or directed to the next stage of processing. The resulting fine powder or granules can then be used for further analysis, production, or recycling.

Safety features

The CM1000 Cutting Mill is the first machine in a state of the art sample preparation laboratory when it comes to sample preparation of cuttable materials. This system is suitable for the coarse and fine grinding of any dry substance, typically samples with a feed size of up to 100mm and a total batch of up to 60kgs per hour (volume depending on the characteristic of the samples) can be ground down to 0,5 mm or finer depending on the product. To protect operators and equipment, cutting mills are equipped with safety features such as emergency stop buttons, overload protection, and safety covers that prevent access to moving parts during operation. Due to the integrated safety switch the machine can only be started when the "Easy Lock Cover" is closed and the grinding chamber cover is inserted properly. The Infeed Hopper as well as the housing of the CM1000 is made from solid steel. The ergonomic design of the machine and the positioning of the funnel and the starter box require a minimum space in the laboratory.

CM1000 Cutting Mill FAQ (Frequently Asked Questions)

Laarmann cutting mills are designed for a wide range of materials including plastics, rubber, wood, biomass, textiles, fibrous and medium-hard substances.

Final particle size depends on the selected bottom sieve aperture. Smaller apertures produce finer particles, while larger ones provide coarser output.

These mills feature easily accessible chambers and removable blades, enabling efficient cleaning and reduced downtime.

All models include integrated safety switches and ergonomic design to prevent operation unless covers are securely in place.

Yes. On request most models can be adjusted for continuous grinding with consistent throughput.

Applications

  • Used to mill active pharmaceutical ingredients (APIs) and excipients to a fine powder for tablet production or other dosage forms.
  • Employed to reduce the size of food products such as spices, grains, or dehydrated vegetables, enhancing their usability in production or packaging.
  • Ideal for shredding plastic waste, rubber, and other polymers into smaller pieces for recycling or reprocessing.
  • Utilized to grind seeds, grains, and other agricultural products for feed, biofuel production, or other applications.
  • Applied to reduce the size of environmental samples, such as soil or plant material, for analysis and testing.

Ores, alloys, basalt, cement, ceramics, quartz, chamotte, coke, construction materials, coal,feldspar, glass, granite, minerals, oxide ceramics, rocks, silicon, slag, and many more

Visit our Applications page for our database of specific applications

Plastics

Maize

Plastic part