What is the repair status of the twin screw fish feed processing machine?

Dec 09, 2025

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Core components wear out quickly and require frequent replacement. The screw of the twin screw fish pellet making machine must withstand strong meshing pressure and shearing forces during operation, while also rubbing against hard impurities in the raw materials (such as fine sand and gravel). Even with wear-resistant alloy materials, wear will still occur after long-term use. Especially when processing high-fiber or mineral-rich raw materials, the screw wears even faster, reducing its lifespan from 1500 hours to less than 1000 hours. The die's aperture also enlarges due to wear, causing feed pellets to exceed the standard diameter. When the aperture enlarges by more than 0.2mm, the die needs to be replaced. One feed mill processing grass carp feed containing 25% straw powder found that the die's lifespan was only 800 hours, requiring replacement every 3 months, with a monthly replacement cost of 5000 yuan.

Maintenance is difficult and requires high technical skills. The twin screw fish feed pellet extruder requires extremely high precision in its screw-barrel meshing, with the gap controlled within 0.1-0.3mm. Precise adjustments by professional technicians are necessary when replacing the screw; otherwise, increased vibration during equipment operation will further accelerate component wear. The installation of the molds also requires strict alignment; misalignment will lead to uneven feed pellet formation. While component replacement and adjustment of single-screw extruders are relatively simple and can be completed by ordinary maintenance personnel, twin-screw extruders have complex hydraulic and lubrication systems, making diagnosis difficult and requiring on-site intervention from the manufacturer's professional maintenance personnel, thus increasing maintenance complexity.

Long maintenance cycles and significant downtime losses. Core components of twin-screw floating fish food extruders, such as the screw and molds, are mostly customized products. Manufacturers typically do not have large quantities in stock, requiring companies to order in advance, with delivery cycles of 10-20 days. During this period, the equipment cannot operate normally, causing significant capacity losses. A medium-sized feed mill with a monthly capacity of 1200 tons would lose 600 tons of capacity if the equipment were to be shut down for 15 days. Assuming a profit of 500 yuan per ton, the direct economic loss would reach 300,000 yuan. Even common malfunctions, such as hydraulic system leaks, require 2-3 days to repair due to the high technical requirements, similarly impacting normal production.

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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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