What is pin mill?
Pin mill, also called disk mill, is a type of milling machine that uses pins or discs to break up solid materials into fine particles. It works on the principle of impact and shear, and can produce particles as small as 1 micron. Pin millers are used for various applications, such as grinding spices, herbs, grains, nuts, seeds, resins, pigments, waxes, and chemical.
How does a pin mill work?
It utilizes the high-speed relative motion of the movable and fixed pins/ toothed discs to crush the material through a combination of tooth impact, friction, and material impact.
It has a simple and sturdy structure, smooth operation, and good crushing effect. The crushed material can be directly discharged from the grinding chamber, and the particle size can be obtained by replacing different mesh screens.
In addition, the machine is made of all stainless steel 304/316. All the inner walls of the casing have been machined to achieve a smooth surface, which has changed the previous phenomenon of rough and powdery inner walls, making the production of drugs, food, chemicals, etc. more in line with national standards and meeting GMP requirements.
What are the advantages of using a pin mill?
• Particle Size Control: It provides excellent control over particle size reduction, producing a uniform and fine powder. This is crucial in industries such as pharmaceuticals and food processing, where precise particle sizes are often required.
• Versatility: It can handle a wide range of materials, including brittle, crystalline, or fibrous substances. This versatility makes them suitable for diverse applications in industries like chemical, food, and pharmaceutical.
• Low Heat Generation: The impact and shearing forces in pin mills typically result in minimal heat generation during the milling process. This is advantageous for heat-sensitive materials, as it helps prevent degradation or alteration of the product.
• Easy Maintenance: They are often simple in design, which makes them easy to clean and maintain. Quick access to the grinding chamber and easy removal of the pins contribute to simplified maintenance procedures.
• Meet requirement for different business scales: They are available in various sizes, making them suitable for both laboratory-scale testing and large-scale production. This scalability allows for efficient development and scaling of processes in different industries.
Pin mill VS hammer mill
They are two types of milling machines that use pins or hammers to grind solid materials into fine particles. They work on the principle of impact and shear, and can produce particles as small as 1 micron and as large as 10-20 mm. Some of the differences between pin mill and hammer mill are:
• Pin milling machine typically offer better control over particle size reduction compared to hammer mills, resulting in a finer and more uniform product.
• Pin milling machine can be easily adjusted and cleaned, while hammer mill may be more difficult to maintain and may clog the screen and the mill
• Pin milling machine generally generate less heat during operation compared to hammer mills, making them suitable for heat-sensitive materials.
Ultimately, the choice between a pin mill and a hammer mill depends on factors such as the desired particle size, the nature of the material being processed, and the specific requirements of the application. When you choose the milling machine, you need to consider the actual usage situation, you can ask us for more suitable suggestion.
Pin mill machine technical data
| Model | RT-20B | RT-30B | RT-40B | RT-50B | RT-60B | RT-80B |
|---|---|---|---|---|---|---|
| Capacity | 40-200kg/h | 80-400kg/h | 160-800kg/h | 200-1000kg/h | 300-1500kg/h | 350-2000kg/h |
| Feeding size | <10mm | <12mm | <15mm | <18mm | <20mm | <28mm |
| Final fineness | 20-120mesh | 20-120mesh | 20-120mesh | 20-120mesh | 20-120mesh | 20-120mesh |
| Power | 4kw | 7.5kw | 11kw | 15kw | 22kw | 37kw |
| Rotating speed | 4500r/min | 3800r/min | 3400r/min | 3000r/min | 2800r/min | 2400r/min |
| Dimension | 600*550*1250mm | 700*600*1450mm | 900*800*1550mm | 1050*850*1750mm | 1100*900*1880mm | 1200*950*2000mm |
| Weight | 280kg | 340kg | 450kg | 600kg | 900kg | 1250kg |
FAQ about pin mill machine
1 . What industries use pin mills?
They are commonly used in industries such as pharmaceuticals, food processing, chemical processing, and others that require precise particle size reduction.
2. Can pin mills handle heat-sensitive materials?
Yes, they are suitable for heat-sensitive materials as they typically generate minimal heat during the milling process.
3. How is particle size controlled in a pin mill?
Particle size control is achieved through the impact and shearing forces generated by the high-speed rotation of pins, resulting in a uniform and fine powder.
4. Are pin mills easy to clean and maintain?
Yes, they are often designed with simplicity in mind, making them easy to clean and maintain. Quick access to the grinding chamber and removable pins contribute to easy maintenance.
5. Can pin mills be used for large-scale production?
Yes, they are available in various sizes, making them suitable for both laboratory-scale testing and large-scale production. They are scalable to meet different processing needs.
6. What factors should be considered when choosing a pin mill?
Factors to consider include the desired particle size, the nature of the material being processed, heat sensitivity, maintenance requirements, and specific application needs
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