How to choose and use the crusher correctly

The structure and working principle of the crusher

Goto Fangtai to know more.

1. Main structure: The crusher is mainly composed of a feeding hopper, a crushing chamber, a knife holder, a screen plate, a lower hopper, and a motor.

2. Working principle: The material to be pulverized is subjected to its own gravity or external force. After the feeding port enters the pulverizer, it is rotated by high speed, so that the material and the tool holder, the material and the material constantly collide and rub each other, and the material is also It is continuously pulverized until a certain degree of fineness is reached, and finally the sieve plate is taken out of the pulverizer to become a desired product.

Common crusher classification

1) the claw knife crusher (broken hard material)

The claw knife crusher is suitable for crushing and reusing various plastics, especially for all kinds of hard plastics. The crusher is easy to operate, the tool change is simple and fast; the tool holder is optimized, the claw knife can be dispersed and the force is increased, so that the shear force of each knife is increased, which is suitable for crushing thick materials, hard blocks, material heads, etc. It improves the cutting force of the tool and reduces the wear of the tool. It has an electronically controlled safety design. The hopper has a double-layer structure and is filled with sound-insulating materials, which makes the equipment have good safety and environmental protection. It is energy-saving and durable. It can choose different tools and different apertures. Screen. Mainly used for crushing and recycling ABS, PE, PP board and other plates. The rectangular feeding port uniquely designed for the smashing of the plate material facilitates the smashing of the long strip type plate and improves the working efficiency. Optional suction fan and storage tank form a plate crushing and recycling system to fully utilize the recycling efficiency. The sealed bearing is used to keep the bearing rotating for a long time; the knife type design is reasonable, the product is evenly granulated; the knife seat is heat-shrinked, and the shape design is beautiful and generous.

2) the knife knife crusher (broken ordinary materials)

The blade type structure is between the claw knife and the flat knife, and is suitable for crushing plastic products and nozzle materials such as ordinary sheets, pipes, profiles, plates and packaging materials. The universal plastic pulverizer adopts sealed bearings to keep the bearing rotation good for a long time; the knife design is reasonable, the product is uniform in granulation; the knife seat heat treatment, the shape design is beautiful and generous, and the screens with different knives and different holes can be selected.

3) flat knife crusher (broken soft, thin material)

The flat crusher is suitable for the recycling of plastics such as boxes, thin pipes, blow moldings, bottles. The crusher is easy to operate, and the tool change is simple and quick. The wide cutter has a wide structure suitable for crushing large-volume thin-walled and thin materials and improves crushing efficiency. It has an electronically controlled safety design. The hopper has a double-layer structure and is filled with sound-insulating materials. It is equipped with an overload protection device and a power chain interlocking system, which makes the device have good safety and environmental protection, saves electricity and is durable, and can choose different tools and sieves with different holes.

How to maintain a plastic crusher?

1. The plastic crusher should be placed in the ventilation position to ensure the heat dissipation of the motor and prolong its service life.

2. It is necessary to regularly add grease to the bearing to ensure the lubricity of the bearing.

3. Regularly check the tool screw. After using the new plastic crusher for 1 hour, use the tool to fasten the moving knife and fix the knife's screw to strengthen the fixing between the blade and the tool holder.

4. In order to ensure the sharpness of the tool cutting, the tool should be inspected frequently to ensure its sharpness and reduce the unnecessary damage of other components caused by the blunt blade.

5. When changing the tool, the gap between the movable knife and the fixed knife: 0.8MM for the crusher above 20HP is better, 0.5MM for the crusher below 20HP is better. The thinner the recycled material, the gap can be adjusted appropriately.

Are you interested in learning more about hard plastic crusher? Contact us today to secure an expert consultation!

6. Before the second start, the remaining materials in the machine room should be removed first to reduce the starting resistance. The inertia cover and the pulley cover should be opened periodically to clear the ash outlet under the flange, and the powder is discharged from the plastic crusher chamber. Shaft bearing.

7, the machine should be well grounded.

8. Regularly check whether the plastic breaker belt is loose and adjust it in time.

It&#;s a primary crusher. The jaw crusher is a machine for crushing rocks and other hard and abrasive materials, such as granite, ores or recycled concrete, usually for industrial purposes. The crushing device consists of a fixed plate and a swing plate called jaws between which the rock is trapped and crushed. A motor and a belt transmit the movement to an eccentric shaft that drives the movable jaw by rotation. A spring returns this moving jaw to let the crushed materials gradually descend into the crusher. When the materials are small enough, they fall into the space between the crusher&#;s two jaws. The crusher breaks the rock into small stones that are used in particular for manufacturing concrete for construction and roads.

Jaw crushers use a rudimentary and reliable technology that does not require much maintenance or engineering knowledge. They are the most popular crushers in the world. Jaw crushers are particularly suitable when the main objective is to reduce large blocks into smaller pieces that can then be processed by other machines.

Advantages: 

• Low maintenance and operating costs because it has few moving parts

• Reduces the raw material to about 150 mm

Disadvantages: 

• Not suitable for small material requirements (smaller than 150 mm). If a smaller grain size is required it can be used in combination with other crushers.

• Not suitable for handling clay or metal mixed with rock.

  Want more information on plastic horizontal dryer? Feel free to contact us.