Blog
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Sheet Scratches, Indentations & Surface Marks
2026-05-01 [ Problems of Formed Product Precision ]
Obvious linear scratches, point indentations and large-area scuffs appear on formed sheet surface, damaging galvanized and color coated layers and seriously affecting appearance and market value. Main causes: unpolished burrs and wel......
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Asymmetric Height & Uneven End Size of Products
2026-05-01 [ Problems of Formed Product Precision ]
Finished tiles show obvious height difference on both sides and inconsistent size at two ends, known as "different head and tail size", resulting in high rejection rate in mass production. Main causes: slightly deformed machine frame......
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Unstandard Tile Shape, Radian Error & Uneven Surface
2026-05-01 [ Problems of Formed Product Precision ]
After cold roll forming, finished tiles show irregular shape, excessive radian deviation, uneven surface and irregular ribs, failing to meet standard building material size requirements. Main causes: misaligned forming rollers with p......
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Sheet Feeding Deviation & Left-Right Offset
2026-05-01 [ Common Problems in Daily Operation ]
Metal sheets such as PPGI, galvanized steel and aluminum magnesium manganese sheets often deviate left or right during feeding, causing forming radian deviation and surface distortion, and seriously affecting product straightness and appear......
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Abnormal Noise & Excessive Running Sound
2026-05-01 [ Common Problems in Daily Operation ]
Obvious abnormal noise, loud running sound and obvious vibration are common running faults of roll forming machines. Main causes are worn and aging roller bearings, excessive fitting clearance of worn bushings, loose body fixing bolt......
