会社のニュース Twin screw pet feed extruder machines Benefits and Applications

Modular structural design enhances operational stability and maintenance convenience. The core components of the twin-screw pet pellet making machine, such as the screw, barrel, and die, adopt a modular design. Each component can be independently disassembled and replaced, facilitating daily maintenance and troubleshooting. It also allows for the replacement of components of different specifications (such as screws with different pitches and die heads with different diameters) to meet processing needs, improving equipment adaptability. Compared to the integrated structure of a single-screw extruder, the modular design reduces the impact of malfunctions on overall production. For example, in case of die blockage, it can be quickly disassembled and replaced, reducing downtime for maintenance to less than 30 minutes, while single-screw equipment may require 1-2 hours. Simultaneously, the modular components have higher machining precision and more reasonable fit clearances, reducing vibration and abnormal noise during operation, improving equipment operational stability, with parameter fluctuation errors ≤ ±3% over 8 hours of continuous operation.

High-strength core components extend equipment lifespan. The core components of the twin-screw pet feed extruder are made of high-strength, wear-resistant materials. The screw is made of 38CrMoAl nitrided steel, and after nitriding treatment, its surface hardness reaches HRC60 or higher, significantly improving its wear resistance and corrosion resistance. It can withstand the wear of high-fiber, high-hardness raw materials, extending its service life by more than 50% compared to single-screw extruders. The barrel uses a wear-resistant alloy steel liner, and the die is made of high-strength alloy material, which can resist the impact of high temperature, high pressure, and high-frequency shearing, reducing component wear. Furthermore, the meshing transmission structure of the twin screws ensures that the force is evenly distributed on both screws, avoiding the localized wear caused by concentrated force in single-screw extruders, further extending the screw's service life. Under normal maintenance conditions, the core components of the twin-screw extruder have a service life of 8,000-10,000 hours, far exceeding the 4,000-5,000 hours of single-screw extruders.

A comprehensive protection system reduces the risk of failure. The Twin Screw Pet Food Extruder is equipped with multiple safety protection and fault warning systems, including overload protection, temperature and pressure alarms, and lubrication system monitoring, which can monitor the equipment's operating status in real time. When the extrusion chamber pressure is too high, the temperature is abnormal, or the motor is overloaded, the system will automatically alarm and shut down to prevent equipment damage. The lubrication system automatically adds lubricating oil to components such as the screw and bearings to ensure smooth operation and reduce friction and wear. Simultaneously, the equipment's cooling system effectively controls the barrel temperature, preventing component deformation and excessive gelatinization of raw materials due to localized overheating. These protective systems significantly reduce the equipment failure rate, keeping downtime to less than 2 hours per month, ensuring production continuity, and reducing maintenance costs and production losses.

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