The difference between LTMF Series Plastic Pulverizer with cutter and LTMG Series Plastic Pulverizer with grinding disc

In the pulverizers, according to different classification methods, the pulverizer can be divided into a lot of different types, according to the way of grinding can be divided into room temperature pulverizer and cryogenics pulverizer. According to the principle of grinding can be divided into knife disc pulverizer and grind disc pulverizer. According to the difference between the knife disc pulverizer and grind disc pulverizer, we can quickly and accurately select the suitable pulverizer to grind the corresponding materials. Although both are called pulverizers, there are many similarities but many differences.

1. The similarities between LTMF Series Plastic Pulverizer with cutter and LTMG Series Plastic Pulverizer with grinding disc

1.1  Same working mode

Both pulverizers are composed of feeding hopper into small particle materials, the pipeline into the grinding chamber, in using rotary blades and stationary blades under the interaction of the material grinding into powder, after air conveying device, air blower transport into the vibrating screen. After the screening, qualified size material is collected, packaging has not yet been fully grinding powder material is brought into the grinding chamber again further grinding, so as to make the output of the material to achieve the effect of the grinding powder completely.

1.2   Same shape

Knife disc pulverizer and grind disc pulverizer has the appearance of the same structure. From the appearance, they are not directly to distinguish the knife disc pulverizer and grind disc pulverizer, they are the largest, the most visible difference, can be seen from the name, the structure of blade is different, but because the blades are put into the grinding chamber, so can’t directly from the appearance to distinguish them.

1.3 Small price difference

Knife disc pulverizer and grind disc pulverizer because of the same appearance, resulting in their price difference is not very big. Generally speaking, the same model, the same size of the grind disc pulverizer than knife disc pulverizer the cost of about 10,000 CNY. This price difference is not invariable, because the larger the size of the pulverizer, the corresponding production difficulty is gradually increasing, and in order to achieve its grinding effect, the grind disc pulverizer is a relatively complex manufacturing process, so its production cost is also increasing, so the production cost difference will be more than 10,000 CNY.

1.4 High manufacturing accuracy

Whether it’s knife disc pulverizer and grind disc pulverizer, they all rotary blades at high-speed when they’re working, in order to ensure the useful life of the pulverizer, it is necessary to ensure their precision requirements in the manufacturing process.

1.4.1 Concentricity

Whether it’s knife disc pulverizer and grind disc pulverizer, their grinding chamber after production has to be processed by boring machine to ensure a high concentricity between the grinding chamber and the spindle of the rotary blades, so that the pulverizer can also extend its service life.

1.4.2 Roundness

The rotary blades and stationary blades of knife disc pulverizer and grind disc pulverizer, should also ensure roundness, so that when the rotary blades and stationary blades cooperate, the effect of grinding powder will be good, otherwise the output capacity of pulverizer will be greatly reduced.

2. The differences between LTMF Series Plastic Pulverizer with cutter and LTMG Series Plastic Pulverizer with grinding disc

2.1 Different materials

(1) Knife disc pulverizer is generally suitable for PVC and other hard and brittle materials. Because the hard and brittle material is subjected to shear force between the rotary blades and stationary blades of the knife disc pulverizer, it can be easily cut into powder.

Advantages: high output and low energy consumption.

Weakness: Unable to grind soft and tough materials.

• Generally, grind disc pulverizer is suitable for PP/PE and other soft and tough materials. Because the soft and tough material knife disk is difficult to cut up these materials, therefore, in order to achieve the effect of grinding, the knife disc is improved into a grind disc, so that the stationary blades and rotary blades of the grind disc cooperate with each other, so that these strong toughness materials ground into powder.

Advantages: It can grind the material with strong toughness into powder.

Disadvantages: Low output capacity, high temperature when grinding materials.

2.2 Different main motor power

Compared with the main motor of the knife disc pulverizer of the same model, the main motor power of the grind disc pulverizer is usually a larger model. Because the grind disc pulverizer grinds materials, the grinding difficulty is greater and the heat is higher, so the main motor power has to be increased accordingly.

2.3 Different outputs

Although the motor power of the grind disc pulverizer mill is higher than that of the knife disc pulverizer of the same model, the material is difficult to be ground into qualified powder because of the high grinding difficulty, so its output is also very low.

2.4 Different number of blades

The rotary blades of the knife disc pulverizer are mainly composed of the structure of rotary blades installed on the blade frame, while the grinding disc of the grind disc pulverizer is a whole structure.

Although there are many types of pulverizer and differences in structure, it is possible to directly, quickly and accurately select the corresponding type of pulverizer by grinding materials and output.

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