Rubber mixing machines are an essential piece of equipment in the rubber processing industry. They help create high-quality rubber products by mixing, plasticizing, and uniformly dispersing rubber with various additives. To optimize the production process and enhance product quality, it is crucial to choose the right specification of compounding machine. As a leading manufacturer and supplier of rubber mixing mills, Crowns Machinery offers a range of high-performance Mixing Mills to meet the needs of different industries. This article will detail the key specifications of a Rubber Mixing machine and provide advice on selecting the right model.

Table of Contents
Basic Specifications for Rubber mixing Mill
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 following are detailed specifications for several mixer models offered by Crowns Machinery:
Type | XK-160 | XK-250 | XK-300 |
---|---|---|---|
roller diameter | 160mm | 250mm | 300mm |
roller length | 280mm | 620mm | 300mm |
front roll linear speed | 11.24 m/min | 14.4 m/min | 15.1 m/min |
friction ratio of rollers | 01:01.4 | 01:01.2 | 01:01.3 |
Max gap | 8mm | 8mm | 8mm |
motor | 7.5 kw | 18.5 kw | 22 kw |
batch capacity | 1-2 kg | 10-15 kg | 15-20 kg |
machine size | 1080*796*1415mm | 3400*1500*1500mm | 3580*1550*1695mm |
machine weight | 1100 kg | 3500kg | 5200 kg |
model | XK-400 | XM-450 | XK-560 |
roller diameter | 400mm | 450mm | 560mm |
roller length | 1000mm | 1200mm | 1530mm |
front roller linear speed | 16.5m /min | 18.65 m/min | 24.5m/min |
friction ratio of rollers | 01:01.3 | 01:01.3 | 01:01.2 |
Max gap | 10mm | 15mm | 20mm |
motor | 37 kw | 55 kw | 75 kw |
batch capacity | 18-35 kg | 25-50 kg | 50-65 kg |
machine size | 4250*1850*1870mm | 5200*2380*1700mm | 6120*2282*2000mm |
machine weight | 7600kg | 13000 kg | 22000 kg |
These specifications reflect the processing capacity, physical size, and power requirements of the different models of equipment. Larger roller sizes are suitable for high-volume production, while smaller machines are suitable for laboratory or small-batch production.
Drive Systems and Automation Controls
Crowns Machinery’s rubber mixers are equipped with advanced drive systems, such as the Uni Drive system, to maintain efficient and stable operation under high load conditions. The drive system is designed to provide high torque and low vibration, resulting in smooth operation and reduced mechanical wear. What’s more, automated control systems (such as PLC systems) significantly improve operational accuracy and productivity.
Automated control systems not only allow operators to monitor key parameters (such as temperature, pressure, and speed) in real-time through a touch-screen interface but also to make on-the-fly adjustments during the production process. This flexibility allows operators to respond quickly to changes in production, ensuring quality and consistency from batch to batch. Automation systems are especially important for high-end rubber products that require tightly controlled production conditions.
The introduction of automation features also reduces the risk of human error by minimizing manual intervention. This level of automation can have a significant impact on improving production efficiency and product consistency. With advanced control systems, companies can significantly reduce equipment downtime and further improve the overall effectiveness of the production line.
Cooling and temperature control systems
Temperature control is critical in the rubber mixing process as it directly affects the mixing of the rubber and additives. Crowns Machinery’s mixers are equipped with highly efficient cooling systems such as water cooling and steam heating systems. These systems enable precise control of the roller temperature, thus ensuring that the material is evenly mixed and avoiding problems of overheating or uneven cooling.
The cooling systems are designed to take into account the temperature requirements of different materials. For example, handling sensitive materials requires more precise temperature control to ensure the quality and performance of the final product. With stable temperature management, the mixing mills can effectively minimize quality problems caused by temperature fluctuations and ensure consistency from batch to batch.
In addition, temperature control systems optimize the energy efficiency of the equipment. By reducing unnecessary heat loss, companies can lower energy consumption and reduce operating costs. This energy-saving feature makes the mixing mills not only environmentally friendly but also economically efficient.
Safety Features and Maintenance Requirements
Crowns Machinery has always made safety a top priority in the design of our equipment. Our mixing mills are equipped with a variety of safety features, including emergency braking systems and automatic reversing functions. These features ensure that even if an abnormal situation occurs during operation, we can respond promptly to prevent accidents from occurring.
The emergency braking system is hydraulically controlled to stop roller rotation in milliseconds, preventing injury to the operator. The automatic reversing function prevents material from stalling during the mixing process and ensures that the mixing process runs smoothly. These safety features not only protect the operator ,but also minimize damage from unplanned downtime.
In terms of maintenance, Crowns Machinery’s mixing mills are designed with ease of maintenance in mind. The equipment’s modular design allows operators to easily replace wearable parts, reducing equipment downtime. In addition, regular preventive maintenance can extend the life of the equipment and increase return on investment. Companies should pay attention to the wear and tear of the rollers, the efficiency of the cooling system, and the calibration of the automated control system during routine maintenance to ensure that the equipment is always in the best working condition.
Application areas and selection recommendations
Rubber mixers have a wide range of applications in the rubber, plastic and chemical industries. Different models of mixing mills are suitable for different production environments according to their specifications and performance:
XK-160, XK-250, XK-300: These models of mixing mills are ideally suited for small batch production and laboratory applications due to their smaller dimensions and lower power. They excel in flexibility and processing precision and are suitable for demanding small-scale production tasks.
XK-400, XM-450, XK-560: With larger roller sizes and higher motor power, these models of mixing mills are suitable for large-scale production. They excel in handling large quantities of rubber materials and are particularly suited for tire manufacturing, industrial seals, and conveyor belt production. These machines are capable of meeting the demands of high-intensity, high-quality production, making them an excellent choice for large-scale industrial production.
The following factors should be taken into consideration when selecting a machine:
Production requirements: Select the appropriate roller size and motor power according to the expected output to ensure an efficient production process.
Material characteristics: different rubber materials require different friction ratios and temperature control systems, these characteristics should be taken into account when selecting the right equipment.
Automation requirements: modern production lines rely more and more on automation control systems, and choosing a model with advanced automation features can further improve production efficiency.
Conclusion
The specifications of a rubber mixer directly affect its performance in different applications. By understanding key parameters such as roller size, friction ratio, motor power, and safety features, companies can choose the equipment that best suits their production needs, resulting in improved productivity and product quality. Crowns Machinery offers a wide range of rubber compounders to meet the diverse needs of our customers, whether they are working on small-batch laboratory applications or large-scale industrial production. By choosing the right equipment, companies can not only optimize their production processes, but also stay ahead of the competition in a highly competitive market.