What are common problems with pet food extrusion equipments?

 

Common Problem 1: Severe Screw Wear Leads to Uneven Pellet Formation

This is the most common component failure in pet food extrusion machines, often caused by prolonged use, excessive impurities in raw materials, or improper maintenance. Long-term friction between the screw and the material causes the threads to gradually wear down and become shallower. In severe cases, the threads may crack, leading to uneven material compression and cooking. This results in pet food pellets with large size deviations, deformities, and broken pieces, significantly reducing the quality pass rate. Simultaneously, a worn screw increases the equipment's operating resistance, leading to a 15%-25% increase in energy consumption. Actual test data shows that a screw without regular maintenance will have a 40% shorter lifespan, showing significant wear on average every 8000 hours, requiring timely grinding, repair, or replacement. Troubleshooting Method: After stopping the machine and disassembling, observe whether the screw threads are intact and whether there are scratches on the surface. Use calipers to measure the thread thickness; if the deviation exceeds 0.3mm, it indicates severe wear.

 

Common Problem 2: Corrosion of the Inner Barrel, Causing Material Adhesion and Blockage

The barrel and screw of a pet food making machine work together. The smoothness of the inner wall directly affects the puffing effect. Common faults include inner wall corrosion and wear, often caused by incomplete cleaning, the use of corrosive cleaning agents, or moldy raw materials. Corrosion of the inner barrel will result in scratches and unevenness, causing material to adhere to the inner wall during extrusion, preventing smooth feeding and leading to equipment blockage and shutdown. Additionally, metal fragments produced by corrosion may mix into the pet food, posing a safety hazard. Troubleshooting Method: Before starting the machine, observe the feed channel for any remaining clumps of material. If increased equipment vibration or a sudden decrease in output occurs during operation, stop the machine, disassemble the barrel, and check the inner wall for corrosion marks or adhered material.

 

Common Problem 3: Die Head Blockage and Wear, Causing Substandard Particles

The die head determines the particle size and shape of pet food particles. Common faults include clogging and wear deformation of the die head, often caused by incomplete raw material screening and untimely cleaning. Hard impurities in the raw materials (metal fragments, stones) can clog the die head orifice, leading to obstructed discharge and broken particles. With prolonged use, the die head orifice may wear and deform, causing particle size errors to exceed ±0.2mm, and some particles to become hollow or broken. Troubleshooting method: If a sudden increase in discharge pressure or broken particles occurs during operation, it can be initially determined that the die head is clogged. After production, disassemble the die head and check whether the orifice is unobstructed and whether there are signs of wear or deformation to confirm the problem accurately.

 

 

 

 

 

 

MIKIM's fish feed pellet production lines and supporting machinery offer excellent value for money. Not only are they affordable, eliminating middlemen markups and allowing small and medium-sized enterprises (SMEs) and fish farmers to purchase complete sets of equipment at reasonable costs, but they also boast exceptional efficiency. The fully automated process, from raw material crushing and precise ingredient mixing to extrusion pelleting and maturation, is completed in one continuous flow. This results in high starch gelatinization rates and uniform pellet formation, significantly improving production efficiency and feed quality, truly achieving "low cost, high output." Choosing a MIKIM fish feed pellet production line means enjoying comprehensive pre-sales and after-sales service, including 24-hour online customer support, a one-year warranty on the entire machine, professional on-site installation, commissioning, and maintenance, and a stable supply of spare parts. Customers can buy with confidence and use with peace of mind, with both excellent value and service quality!!!

 

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1. What is the price of the Twin screw fish feed extruder 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.

 

To explore which twin screw pet food machine model is suitable for your product line, view our full range of equipment or contact our team for a customized production plan.

 

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