Rubber Mixing Mill Machine

Our company was founded in 2005, at the beginning of the establishment engaged in the design and production work of metal hose, metal pipe fittings and other metal products. In 2007, we began to develop rubber recycling equipment and rubber machinery products, and in 2008 to the market. In 2013, we developed complete equipment for rubber asphalt modification. Our company is located in Wuxi, JiangSu Province, 150 kilometers away from Shanghai, Nanjing, north of the Yangtze River, transportation is very convenient. We mainly engaged in the research and development, production and sales of rubber machinery and metal products.

Our Factory
Our company is located in Wuxi, JiangSu Province, 150 kilometers away from Shanghai, Nanjing, north of the Yangtze River, transportation is very convenient. We mainly engaged in the research and development, production and sales of rubber machinery and metal products.

Production Market
Our products have been sold to Southeast Asia, North Asia, Eastern Europe, Australia, America and other markets; Achievements: tire recycling equipment in Malaysia; tire recycling production line in Russia, Ukraine and Turkey; tire recycling rubber asphalt modifier production line in New Zealand , etc

Our Certificate
GB/T19001-2016/ISO9001:2015 QUALITY MANAGEMENT SYSTEM CERTIFICATION.Patent number：ZL 2019 2 1443405.7 ZL 2019 2 1443434.3 ZL 2019 2 1443437.7 ZL 2019 2 1443820.2

After Sale
● Provide guidance information and technical assistance for users to install and debug the products sold free of charge;
● Our company is equipped with a high-quality after-sales service team based on technical personnel, in receiving the feedback of users, in the shortest time to make the satisfactory reply and processing;
● Our product warranty period of one year; After the one-year warranty period, the lifetime maintenance of the products sold is guaranteed;
● Our company regularly visits users to understand the use of products and help solve various problems that may be encountered in the process of use. At the same time to solicit suggestions for quality and technical improvements, in order to better serve users;

Rubber mixing mill machine is mainly used for the mixing, plastic refining, hot refining and pressing strip of natural rubber and synthetic rubber. With hardened gear reducer and welding base plate, this machine has the advantages of high efficiency, compact conformation, low noise, good antifriction of tooth-face compared with the same kind of equipment.The processed materials are normally used on calenders, hot presses, or other processing machinery for producing various rubber and plastic products. The mill operates by having two rolls rotate in opposite directions at different speeds, creating shearing forces that mix and refine the rubber material.

The key specifications of a rubber mixing machine include roller size, friction ratio, motor power, rotational speed, etc. These parameters directly determine the performance of the equipment. These parameters directly determine the performance and applicability of the equipment.

The rubber mixing mill machinel has several key components that are essential for efficient mixing. Each part ensures the rubber is processed evenly, resulting in a consistent mix.

Rubber mixing mill machine are the basic part of the rubber industry. Any rubber industry can't survive without this machine. This machine is used to manufacture rubber compounds. There are two rolls in a mixing mill. Each rotates opposite to the direction of the other. To mix the ingredients well one roll runs faster than the other one. This will help in mixing the rubber well. The additives used with rubber base are fillers, softeners, processing aids, and colorants. After these all mix well the rubber is ready for the next step of rubber products manufacturing.

Rubber mixing mill machine runs on two rolls. Both the roll are arranged parallelly. Each roll is independent of the other for its rotation. The speed of the rotation can be adjusted to the desired ration. One roll rotates faster than the other. Which one will rotate faster depends upon the mixture. There is roll nip to adjust the width between the rolls. Adjusting this nip the desired thickness of the rubber is obtained. During the mixing process, the rolls get heated up. They can be cooled by water cooling.

To mix an untreated rubber block, it is first inserted in the roll nip. The rolls pull the block in between them and get wrapped around the front obviously roll. it is adjusted there according to the nip thickness. The other additives are also mixed through roll nip. In between the process, the rubber is taken out and put in the nip lengthwise. This is done to mix the additives properly with the rubber. The process is done again and again till the rubber base is totally incorporated with the additives.

Rollers: The rollers are the heart of the mixing mill. Typically, there are two rolls arranged horizontally. Their size and surface design directly influence the mixing quality. Larger rollers produce greater shear forces and improve the mixing of rubber and additives. The surface of the rollers is usually grooved or textured to increase friction and help the rubber to grip and knead correctly.

Drive System: This system uses an electric motor or hydraulic system to power the rollers. It controls the speed and direction of the roller, which can be adjusted to suit specific mixing needs. This flexibility ensures the rubber material is thoroughly sheared and squeezed, leading to a uniform blend.

Pressure regulating mechanism: This component controls the distance and pressure between the two rollers. By adjusting the pressure, the system can be adapted to different rubber hardnesses and viscosities. This adjustment is essential for optimal mixing results, ensuring accurate processing of the rubber material in all production conditions.

The working principle of a Rubber Mixing Mill can be divided into three stages. Specifically the feeding process, the mixing process and the discharging process.

Feeding Process
Firstly, raw rubber and various additives (such as vulcanising agents, reinforcing agents and plasticisers) are added between the rollers of the mill through the inlet.
The operator controls the amount of each additive according to the set recipe. This ensures that the rubber is correctly mixed.
At this point, the rubber is fed slowly so that it is evenly distributed over the rollers and then kneading and processing begins.

Mixing process
As the rubber and additives pass through, the two rollers begin to rotate in opposite directions.
The shear force generated between the rollers stretches and compresses the rubber and mixes it with the additives. This process ensures a homogeneous mixture.
The friction created by the rollers moves the rubber back and forth, ensuring that the material is always evenly mixed.
The operator can adjust the spacing and speed of the rollers. This control allows for precise mixing to achieve the desired properties of the rubber.

Discharge process
Once the mixing is complete, the operator varies the pressure and spacing of the drums to release the mixed rubber.
The processed rubber is now made into sheets or moved to the next stage through the discharge opening.
It is important to prevent the rubber from sticking to the rollers. The operator also needs to control the temperature and pressure to ensure that the discharge goes smoothly.

● In addition to being familiar with the equipment performance and production process of the machine, the operator also needs to conduct professional mechanical training and pass professional examinations
● The lubrication system of the rubber mixing mill needs to be kept unblocked. If the equipment is faulty, it must be repaired before starting up.
● The cooling system of the rubber rubber two roll mill needs to meet the process requirements. During the startup process, the cooling system needs to operate normally.
● The rubber two roll mill machine cannot work for a long time and needs a proper rest to ensure the normal operation of the machine.
● Rubber that has been cold in winter or burnt rubber is not allowed to feed.
● Do not put flammable and explosive materials into the open mill.
● Once the side wall temperature exceeds 65℃, stop immediately.
● The compressed air is not enough to drive, so as to avoid the upper and lower bolts from getting stuck.
● When the rubber is found to be burnt, it should be unloaded immediately.
● The lubricating oil of the oil cup of the oil pump should be the oil of the specified label, and can not be replaced by low-grade oil.
●  It is forbidden for personnel to stick their heads into the feeding port to observe and listen to the situation in the mixing room.

The rubber mixing mill is the main working parts of two opposite rotation of the hollow roller, the device in the operator side called the front roller, can be manually or electric horizontal movement before and after, so as to adjust the roller distance to adapt to the operation requirements; The back roller is fixed and cannot be moved back and forth.

Maintenance of the rubber mixing mill during operation
● After starting the machine, oil should be injected to the oil filling part in time.
● Check regularly whether the filling part of the oil filling pump is normal and whether the pipeline is smooth.
● Pay attention to whether there is lighting and heating discoloration at each connection.
● Adjust the roller distance, the left and right ends should be uniform.
● When the roller distance is adjusted, a small amount of glue should be added after adjustment to clear the gap of the spacing device, and then normal feeding.
● When feeding for the first time, it is necessary to use small roll distance. After the temperature is normal, the roll distance can be increased for production.
● Emergency stop devices shall not be used except in an emergency.
● When the bearing bush temperature is too high, it is not allowed to stop immediately. The material should be discharged immediately, the cooling water should be fully opened, the thin oil should be added to cool down, and the relevant personnel should be contacted for treatment.
● Always pay attention to whether the motor circuit is overloaded or not.
● Regularly check whether the temperature of roller, shaft, reducer and motor bearing is normal, and there should be no sudden rise.