How To Determine Whether A Dog Food Manufacturing Equipment Screw Is Worn？

Poor feed formability is a typical manifestation of screw wear in small pet food extrusion equipment machines. Under normal circumstances, pelleted feed produced by small fish feed extruders should have regular shapes, smooth surfaces, clump together when squeezed, and crumble easily when released, with uniform feed output from the die. If the screw is worn, the raw material is not fully extruded, resulting in uneven pellet size, rough surfaces, and frizzy edges. Some pellets may even crack and crumble, and in severe cases, there may be a large amount of debris. For example, 1-2mm fine pellets used for aquaculture fry, which were originally well-formed, have recently experienced frequent pellet breakage and increased debris, making it difficult for fry to feed. After ruling out die blockage, it can be determined that the reduced extrusion and extrusion effect is due to screw wear.

 

Insufficient feed maturation is a core manifestation of the impact of screw wear on the extrusion effect in floating fish feed pellet extruder machines. The high-temperature, high-pressure environment of the extruder depends on the close cooperation between the screw and the extrusion chamber. After screw wear, the extrusion pressure decreases, making it difficult to reach the effective extrusion temperature of 120-140℃. The starch in the raw material is not fully gelatinized, resulting in reduced maturation. Judgment methods: Soak a small amount of finished feed in clean water. If it disintegrates within 10 minutes and contains a large amount of undissolved starch granules, it indicates insufficient cooking. Alternatively, you can judge by smell. Normally extruded feed has a strong grain and meat aroma, while insufficiently cooked feed has a raw, fishy smell or a raw grain smell. For example, grass carp feed processed by a fish farmer recently disintegrated rapidly after soaking, causing diarrhea in fish that consumed it. Inspection revealed that screw wear caused insufficient extrusion, with a cooking degree of only 60% (normally it should be above 85%).

 

Decreased water resistance and palatability of the feed also reflect screw wear. Floating fish feed produced by a small dog food pellet machine should normally withstand 8-12 hours of water, while sinking feed should withstand 5-8 hours. If the screw is worn, the internal structure of the feed becomes loose, significantly reducing its water resistance. It will quickly disintegrate after being placed in water, leading to feed waste and water pollution. Meanwhile, insufficient extrusion will reduce the palatability of the feed, decrease the fish's willingness to eat, manifest as slow feeding, increased uneaten feed, and even a decrease in growth rate. For example, tilapia, which used to eat floating feed readily, have recently shown increased uneaten feed and slow growth. Inspection revealed that the feed disintegrated in large quantities within 3 hours of being put into the water. Further investigation determined that screw wear affected the extrusion effect, leading to a decline in feed quality.

 

 

The MIKIM's floating fish feed extruder machine is constructed entirely of food-grade 304 stainless steel, fully complying with food processing hygiene standards. It is corrosion-resistant, easy to clean, and eliminates potential contamination at the source. The core screw is made of high-quality alloy steel through special heat treatment, offering outstanding wear resistance and corrosion resistance. Combined with its integrated structural design, this significantly extends its service life. The entire machine has passed CE and ISO international authoritative certifications, aligning with global quality standards and ensuring safer and more reliable processing.

 

 

 

 

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1. What is the price of the best dog food pellet machine?

The price ranges from approximately $1,500-$50,000

2. How do you deliver to customers?

MIKIM Machinery's machinery delivery follows a complete process of "customized preparation - safe and fast delivery - precise handover - after-sales extension", with 3-day fast delivery, multi-layer protective packaging, global logistics tracking and 1-year warranty + on-site technical service to ensure that the equipment is delivered efficiently and in good condition and put into use smoothly.

 

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