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The core structural feature of a single-screw pet food extrusion machine is a "single screw + sealed extrusion chamber," resulting in a relatively simple structure. Its extrusion system consists of a single screw and an extrusion chamber. The screw is an integral structure with a pitch that gradually decreases from the feed end to the discharge end. The high-speed rotation of the single screw generates extrusion and shearing forces to compress and mature the raw materials. The feeding system is typically a single-inlet design, with the raw material directly pushed to the screw feed section via a feeding auger. The transmission system is driven by a single motor, which rotates the screw via a belt or reducer, with a relatively narrow speed adjustment range (300-400 r/min). Single-screw extruders are compact, small in size, and low in cost, making them suitable for small-scale family farming or small-batch production. They can adapt to simple raw material formulations such as conventional grains and soybean meal.
The core structural feature of a twin-screw fish feed extruder machine is "two meshing screws + a precision extrusion chamber," resulting in a relatively complex structure. Its extrusion system consists of two parallel or counter-rotating screws and an integral extrusion chamber. The two screws rotate synchronously via a gearbox, and the screw pitch is designed with an interlocking structure to generate stronger extrusion, shearing, and mixing forces. The feeding system is typically a dual-inlet or forced-feed design, capable of handling high-moisture, high-oil, or multi-component complex raw materials. The transmission system is driven by a high-power motor, with the speed of the two screws controlled by a precision reducer, offering a wider speed adjustment range (300-600 r/min) and higher speed stability. The twin-screw extruder is also equipped with a more precise zoned temperature control system, allowing for separate temperature control of the feeding section, compression section, and maturation section to ensure uniform maturation of the raw materials.
Besides the core extrusion and feeding systems, the two also differ in other structural aspects. In terms of the forming system, the twin screw pet pellet making machine features a more precise die design, supports quick changes between multiple apertures, and offers more stable forming pressure and higher pellet uniformity. Regarding the cutting system, the twin screw extruder is equipped with a variable frequency speed-controlled cutter, which can precisely match the discharge speed, resulting in smaller pellet length errors. In terms of maintenance structure, the twin screw pet feed extruder machine's extrusion chamber mostly adopts an open-loop design, facilitating the disassembly, cleaning, and maintenance of the screw and bushing, while the single screw extruder's extrusion chamber is mostly integral, making maintenance slightly more difficult. Overall, the single screw extruder has a simpler structure and lower cost, making it suitable for basic feed production; the twin screw extruder has a more precise structure and superior performance, making it suitable for high-end, complex feed formulations.
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1. What is the price of the small cat food making machine?
The price ranges from approximately $1,500-$55,000
2. Do you provide maintenance services for your customers?
Yes, we offer comprehensive after-sales maintenance services to our customers.
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