110KW 75L Rubber kneader machine and rubber internal mixer inside used Shear rotor

75L rubber kneading machine has the following characteristics:

1. Equipment structure:
- Mixing chamber design:
- Jacketed structure: The mixing chamber is usually a jacketed design, which facilitates the heating or cooling of the mixing chamber. The jacket can be passed into the cooling water, steam or thermal oil and other media, which can quickly adjust the temperature in the mixing room to meet the strict requirements of different rubber formulations in the mixing process. For example, when plasticizing rubber, high temperatures are required to soften the rubber, and when mixing certain temperature-sensitive rubber formulations, precise cooling control is required, and the jacket structure can well meet these temperature control requirements.
- Hard chrome plating treatment: the inner wall of the mixing chamber is plated with hard chromium, which can not only improve the hardness and wear resistance of the inner wall, reduce the wear of rubber materials on the mixing chamber wall, and extend the service life of the equipment; It can also make the inner wall of the mixing chamber more smooth, reduce the adhesion between the rubber material and the wall during the mixing process, and facilitate the discharge and cleaning of the equipment after mixing.
- Rotor structure:
- Material and process: The rotor is generally cast of high-quality alloy steel, with high strength and rigidity, and can withstand the huge friction and shear force of rubber materials in the mixing process. The convex edge of the rotor surfacing carbide, further improve the wear resistance and corrosion resistance of the convex edge, to ensure that the shape and size of the rotor remain stable during long-term use, so as to ensure the consistency of the mixing effect. In addition, other mixing parts of the rotor are usually plated with hard chromium, which not only improves the hardness and finish of the surface, but also facilitates the dispersion and mixing of rubber materials.
- Shape and design: The shape of the rotor is specially designed, such as the common elliptical shape rotor, which can produce strong shear, extrusion and tensile effects on the rubber material during the rotation process, so that the rubber is fully mixed with various compounding agents, improving the efficiency and quality of mixing. The spiral Angle and working length of the rotor are also optimized to ensure that the rubber material can be fully kneaded and stirred in the mixing room to achieve the ideal mixing effect.
- Sealing structure:
- Good sealing: most of the top adopts hydraulic constant pressure sealing structure, with high pressure oil lubrication, can effectively prevent rubber materials from leaking from the top during the mixing process. This sealing structure has good sealing effect, and can maintain good sealing even under high working pressure, reducing the waste of materials and pollution of the working environment.
- Oil cut-off automatic alarm: When there is a problem or insufficient oil supply in the seal structure, the equipment will automatically send an alarm signal to remind the operator to deal with it in time, avoid equipment failure and production accidents caused by seal failure, and also protect the key components of the equipment and extend the service life of the equipment.
- Discharge device:
- Double rack-type hydraulic cylinder: The discharge door is driven by double rack-type hydraulic cylinder, which has the characteristics of smooth work and large driving force, and can ensure the accurate and reliable action of the discharge door during opening and closing. Even in the case of high viscosity and adhesion of the rubber material after mixing, the unloading operation can be successfully completed.
- Linear cylinder locking: The linear cylinder locking device can keep the discharge door tightly sealed when closed to prevent rubber materials from leaking from the discharge door during mixing. At the same time, the device can also ensure that the discharge door in the process of opening and closing to maintain a stable position, to avoid due to the shaking or offset of the discharge door affect the effect of discharge and the normal operation of the equipment.
2. Performance parameters:
- Moderate capacity: The kneading capacity of 75L is suitable for medium-sized rubber production, which can meet certain production requirements without taking up too much production space and consuming too much energy. For some small and medium-sized rubber products enterprises or rubber processing workshops, 75L rubber kneading machine is a more ideal equipment choice.
- Reasonable power matching: the power of the main motor is generally between 75kW and 110kW, which can provide enough power for the rotation of the rotor to ensure that the rubber material can be fully kneaded and mixed in the mixing room. At the same time, reasonable power matching can also ensure that the energy consumption of the equipment is low during operation and reduce the production cost.
- Speed suitable: The rotor speed is usually in the range of 30-36r /min in the front rotor and 24.5-30r /min in the rear rotor. This speed setting can make the rubber material subject to appropriate shear force and friction in the mixing room, which can ensure the full mixing of rubber and compounding agent. It will not cause excessive heating of rubber materials or equipment wear due to high speed.
3. Operation and maintenance:
- Easy operation: the operation control system of the equipment usually adopts advanced automatic control technology, equipped with a touch screen or control panel and other operating interfaces, the operator can easily set and adjust the mixing process parameters, such as mixing time, temperature, rotor speed and so on. At the same time, the equipment also has good man-machine interaction, the operation is simple and easy to understand, and the technical requirements for operators are reduced.
- Easy maintenance: the structural design of the equipment is reasonable, and the connection and disassembly between the components are convenient, which is convenient for daily maintenance and maintenance. For example, key components such as rotors and mixing chambers can be easily removed and installed for regular inspection, cleaning and servicing. In addition, the wearing parts of the equipment such as seals, bearings, etc., are also more convenient to replace, reducing the maintenance time and cost of the equipment.
4. Security:
- Safety protection device: The equipment is equipped with a variety of safety protection devices, such as emergency stop button, safety interlock device, etc. When an abnormal situation occurs during the operation of the device or the operator encounters an emergency, the emergency stop button can be pressed in time to stop the device immediately and avoid accidents. The safety interlock device can ensure that the equipment cannot be started when some key components are not correctly installed or operated, ensuring the safety of the operator.
- Overload protection function: When the device is overloaded due to improper operation or other reasons, the device automatically starts the overload protection function, such as automatic decompression of the top plug, to protect the key components of the device from damage and avoid safety accidents caused by equipment overload.

Detailed specification: