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Pin Mill Pulverizer – The Ultimate FAQ Guide

Read this guide to help you further learn about the design, working principle, working parameters, application, benefits, and types of a machine.

a lot of industries require that the machines work fine with cellular material and do not damage their contour or texture. This is exactly what the pin mill pulverizer offers and therefore is the first choice for industries operating with the processing of materials.

There are two basic types of pin mills that are available in the market. (i) Horizontal Pin Mill (ii) Vertical Pin Mill. We will discuss the benefits and operation of each of these types of pin mills later in the article.

For now, let’s continue with the overview on how the pin mill pulverizer can benefit your industry.

What are Pin Mill Pulverizers?

Pin Mills like all other mills are a type of mill that belongs to the larger group of industrial-grade mills. These mills are used to process different products and either turns them into final products or convert raw material into a semi-ready state to be turned into a final product. With respect to Pin Mill Pulverizer, their main task is to grind solid partlces into moderate size particles.

Generally, the feed materials have a size range from 20 microns to 50 inches. This goes to show you the versatility of the pin mill machine that how wide an operating range it has.

Types of Pin Mill Pulverizer

Bascially there are two (2) types of pin mill pulverizers available in the industry. i.e. Vertical and Horizontal types. Although the working principle of both types of mills are almost same, however, there  are still some minor differences between the structure and construction of the machines.

The horizontal pin mill has an arrangement of the pins that is horizontal in orientation, therefore, the name horizontal pin mill. Whereas, the vertical pin mil has an arrangement of pins in the vertical plane. Usually, the vertical pin mills have the rotor pins attached to the swing door while the rotor pins are housed inside the chamber of the machine.

Despite the difference in orientation of the pin mill designs the basic principle of working is the same.

How Does Pin Mill Pulverizer Work?

The Pin Mills that are majorly used in the industry today work on the combination of a stator and a rotor that operate in tandem to produce pulverized materials.

As shown in the picture above, the pin mills have “pins” that form part of the machine’s stator. On the other hand, “pins” are also attached to the rotating part of the machine which is called the rotor.

The basic principle behind the working of the pin mills is that it converts the kinetic energy of the moving solid particles when they collide with the pins of the stator and rotor. And with the collision with the pins, the solid particle undergoes shearing and is broken into smaller and finer particles.

Once the feed-in material is fed into the rotating pin mill pulverizer, the centrifugal force moves the particles towards the periphery of the rotor. Since the feed-in particles have to move through subsequent sets of intermeshed pins, it is sufficiently sheared and broken down into smaller particles. Furthermore, in some machines, the outer ring or wall of the pin mill is covered with pins or corrugated walls, which further reduces the size of the particles.  Since the pins have a uniform arrangement, the particle leaving the pin mill has a uniform size. These smaller particles are then channeled outside the machine where they are collected. Sometimes, a sieve is also attached to the feed-out part of the machine so that only a specific size of particles can leave the machine.

How to Operate a Pin Mill Pulverizer?

As complex as it might sound in the design part of the machine, it is very easy to operate. Over the next few steps, we will let you know how you can operate a pin mill without having to worry about anything. Here is how you can operate the pin mill in easy steps from starting the machine to its operation mode:

Step 1: Turn on the Pulverizer Machine

Although it might sound like a very basic step of the process, however, the starting up of a machine is a very important step and needs to be carried out correctly to start operating the machine. Once the machine is powered up and the start-up autotest of the machine is complete you are ready to operate the machine.

Step 2: Setting the Machine

In order to get the rightly sized product out of the machine, you will have to set the knobs/buttons in the right manner. In case, you want a finer ground particle then you will have to go with different settings. However, If you have to go with a more unrefined particle then you can also choose that from the setting knob.

Step 3: Cleaning the machine

Once you are done with the grinding process you will have to turn the machine off and clean it thoroughly. In case you are not going to clean it properly you will find that the materials are going to mix with each other causing the fouling of the main feed.

Step 4: Covering the machine

Cover the machine properly if it is not in operation. This will ensure that during non-operation hours there is no intrusion in the pin mill. In case there will be the entry of a foreign particle in the machine that will be too large for the machine to handle then it may even damage the machine. Therefore, you should always cover the machine inputs properly before leaving the site.

Bonus Tip: The Cyclone Dust Collector from Yinda Machinery

In case you are worried about the dusty environment in which you have to work then we have the perfect solution for you. Yinda pin mill pulverizer with automatic dust collector is a feather in the cap for your workshop. Despite working with the grinding of different particles, the auto-dust collector will keep your machine and your workshop clean from dust.

Factors affecting the size of the ground particle:

The size of the particle depends on a lot of factors. These factors are summarized as follow:

• The interspacing between the pins

The space between the pins affects the size of the final particles. As a rule of thumb, the more spaced the pins from each other the thicker the particle and vice-versa.

• Rotor Speed

Setting the rotor speed to the optimal setting is a must for getting the best results out of the pin mill pulverizer. In case you will set the speed to a higher level then you will get finer particles coming out of the mill.

• Rate of Airflow through the mill

Airflow through the mill facilitates the process of grinding. with the adjustment of the flow rate of gas through the mill, you can adjust the size of the ground material.

• The feed rate of Solid Material

On the input side, you will have to feed the solid material into the mill. The particle size on the output of the mill depends on the material being fed to the machine. This means that despite your setting of the machine, there will be certain limitations on the size of the ground material.

You will have to work out the perfect ratio of the rotor speed, solid feed rate, and airflow rate to accommodate the different materials.

What Industries Apply the Use of Pin Mills?

Pin Mill pulverizers have applications in a wide range of industries. Since the major function of the mill is to grind the larger parts into smaller parts it has a range of applications in various industries. Some of these industries are:

• Plastics Industry
• Wood and Wooden products industry
• Minerals and Chemical manufacturing plants
• Preparation of feed for animals
• Pharmaceutical industry
• Food processing and exports industry

In addition to the abovementioned industries, there are a lot of industries that makes use of pin mills for various purposes.

Features of the Pin Mill Pulverizer?

The main features of the pin mill are as follows:

The Body

The main compartment of the pin mill is the body that houses the rotor and stator assembly. This forms the main housing of the machine where the feed-in material enters from and the grinding process takes place.

The stator/rotor compartment of a pin mill comes in various designs and varieties. However, the basic design involves the existence of a pin mill where pins interact with the feed material and shearing takes place.

The Rotor

The pin mills are usually available in SS304/316L to industrial or sanitary/pharmaceutical standards. The rotor of a pin mill pulverizer is the main functioning part of the machine that processes the feed material. Rotors for pin mills come in all shapes and sizes. For instance, if you want a finer output then you can use the different sorts of pins. However, if you want a more large particle output, then you will have to use a different category of pins. A brief table for the available size of the pins is given below for ready reference.

Motor Size

Various motor sizes are available with the pin mills that range from 1.1KW-55KW of material per minute, depending on the application.

Other Variants of the Machine

Although the main features of the pin mills are the same, there are a few variants that have slightly different set-up for the machine. For instance, there is that variant with the dual-rotor disc machine. In this type of machine, both the rotors of the machine are rotating. Similarly, there is a pneumatic conveyor system type pin mill. In these types of machine, there are blowers and cyclone collectors that collect the dust of the materials.

Since Yinda Machinery is your one-stop-shop for all types of machines you can get all types and variants of machines without a hassle. With our cyclone dust collector variant of pin mill, you can keep your work environment clean without having to spend any extra time in it.

Pros and Cons of Pin Mill Pulverizers?

Pros

• You can get customized machine sizes according to your requirements
• The energy consumption to finer particle creation ratio is good. This means that for the same energy input, the mill can produce a finer product
• The space that you will have to manage for the pin mill will be moderate
• ‘Pin mills can work with a large variety of materials, including, dry, and moist materials.

Cons

• Since there are rotating parts involved in the machine, there is friction and resultantly wear and tear on the machine during operations
• Cleaning the mill after use is also very complex. Furthermore, if you have ground something moist in it then cleaning the machine can become a serious challenge
• Heat generation is also a problem due to the high level of friction generated during the operation. Therefore, you might have to arrange for additional cooling systems to keep the machine safe during operation

Despite all the disadvantages of the pin mill pulverized, its benefits outweigh the disadvantages. Thus, you need to consider the pin mills in case you are planning to set up your next fine particle grinding activity.

How to Optimize Utility of Pin Mills

Here are a few tips that will help you in not only selecting the best pin mill machine in the market but also helps you in improving the utilization of the pin mill.

Choose More Resistant Material Machine

Although the machine may not be customizable with respect to changing the manufacturer’s details in the machine, however, if you will know what is the optimal machine for your operation then you will be able to choose the best machine from the market. Choosing the most resistant material to wear and tear will give your machine extra hours of life as compared with other machines.

Here are some of the toughest materials available in the industry:

• chrome-oxide,
• tool steel,
• mild steel,
• chrome carbide,
• tungsten carbide and
• types of stainless steel.

These materials are known to be the toughest customers in the industry. Therefore, you can arrange for coating your pin mills with these materials to extend their usable life.

Auto-cleaning option

Your manufacturer can include a washing nozzle and drain port inherent to the design of the machine. With the auto cleaning option on the pin mill pulverizer, you can clean the machine once you are done with milling. We understand that cleaning is one of the most important tasks for the proper operation of the machine. Therefore, the auto cleaning system will relieve you of the effort during repetitive cleaning of the mill.

 Additional Cooling Option

Cooling is also a major and important aspect of any pin mill pulverizer. The mill’s efficiency depends on how effectively the cooling works. With the operation, the machine warms up due to friction and the area stays hot. However, in case you want this feature of the machine to improve then you can discuss with the manufacturer to add some additional cooling features to the mill.

Increasing the Controllability of the Pin Mills

You might wish that you had more control over the operation of the pin mills. One way of doing this is to install an additional variable frequency drive to the pin mill. This way you can have more control over the operating speed of the machine.

Best Pin Mill Pulverizers in the Industry?

Now you must be thinking of getting a good pin mill pulverizer for your business. We are here to guide you to the best pin mill pulverizer in the industry.

Yinda Machinery is a one-stop-shop for all your milling and processing machinery needs. And we provide the best products in the market.

We have a variety of pin mill pulverizer machines for you to choose from. In case you are asking what is so great about our mills? then here is the answer.

Yinda machinery team is one of the most experienced teams in the business. We have expertise in almost all areas of manufacturing and supplying milling equipment all around the world. Furthermore, we have a huge clientele base that is ready to testify on our high-quality products.

Price of Pin Mill Pulverizer?

The average price of a pin mill pulverizer ranges from $300 – $10000. But it all depends on the specifications and size of the mill. However, we ensure you that once you contact Yinda machinery we will guide you to the most cost-effective solution.

Yinda Machinery Values its Customers

You might have noticed that there are a large number of suppliers claiming that their pin mill pulverizer is the best in the industry. However, for us what matters more is what our customer wants. Whatever you want, we have it. And we will deliver it to you at the best possible time. Furthermore, we believe in building relationships with our clients, get on the same level of thinking as they do, and then providing them with what they want.

So, in addition to our state-of-the-art technology in pin mills and other products, we are here to solve your industrial requirements.

You can talk to our huge list of satisfied customers and discover that what we say is not only words but true actions that translate into a satisfied customer.

Further Queries

Pin mill pulverizer is an important machine for all processes and industries that involve the grinding of big particles into small particles.

We have tried to cover all the possible queries that you can have relating to pin mills. Other than it, you can also trust us if you need Double cone blender, V-Powder Mixers, Air Classifiers mill, hammer mill pulverizer and much more!

However, if you feel that you want to ask a question then we are approachable through all our contact means.