In industrial continuous-feed systems, such as Medium-Density Fiberboard (MDF) defibrator lines and palm oil expeller mills, the plug feed screw is subjected to severe mechanical friction and chemical erosion. A widespread but flawed practice within maintenance departments is the repeated utilization of hardfacing overlay welding to rebuild worn screw flights . Over extended periods, this thermal re-welding alters structural characteristics, leading to an unstable compression ratio, localized feeding inefficiencies, and prospective structural warpage of the machine housing.

To bypass these systemic operational failures, HUATAO Group manufactures high-durability Feed Screws. Formulated with a high-chromium alloy steel featuring a 28% chromium concentration, these components achieve an immutable hardness of HRC 63. This solid metallurgical matrix provides comprehensive wear resistance through the entire depth of the flight, completely eliminating the need for periodic hardface welding. For facilities processing hyper-corrosive media, HUATAO offers specialized fabrications in Duplex Stainless Steel.

The primary financial justification for high-tier casting over conventional overlay welding lies in the mitigation of facility downtime. The cumulative financial losses stemming from production suspension and labor deployment far outweigh the initial capital investment required for high-grade replacement parts. HUATAO accompanies its advanced alloy screws with a solid 1-Year Quality Warranty, documenting an operational life expectancy that is double that of conventional market alternatives. By maintaining geometrical consistency over long lifecycles, our screws safeguard exact compression ratios and enhance total plant efficiency.
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Email: Lucy.chai@huataogroup.com
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Website:www.refinerdisc.com
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