Key technology: “reverse blade” to prevent segregation<\/h3>\n\n\n\n
One of the highlights of BOMAG paver’s spiral system design is the use of “reverse blades”. In the paving operation on a wider road surface, the mixture is pushed towards both ends by a screw conveyor. In traditional hanger support positions, due to structural obstruction, material flow dead zones or sudden velocity changes are prone to occur, leading to segregation.<\/p>\n\n\n\n
To address this issue, BOMAG’s technical solution typically requires the installation of reverse blades at the front end of the hanger. The spiral direction of these blades is opposite to that of the main blades, and their function is to create a “back pressure” before the material is pushed to the end, preventing excessive concentration and rolling of coarse aggregates, while filling the material level depression area caused by hanger obstruction. This design can significantly improve the uniformity of gradation along the paving width direction.<\/p>\n\n\n\n
Wear and Maintenance<\/p>\n\n\n\n
The spiral blades of the paver are typical “vulnerable parts”. In actual construction, the wear rate of blades is affected by the material wear value, rotational speed, and paving mileage. When the blade edge wears down to one-third of its original diameter or shows obvious gaps, the feeding efficiency will significantly decrease, and it should be replaced in a timely manner.<\/p>\n\n\n\n
When choosing BOMAG spiral blades, users should pay attention to the following points:<\/p>\n\n\n\n
- \n
- Matching models: BOMAG pavers of different tonnages (such as BF300C and large BF800 series) have differences in blade diameter and installation bolt hole spacing, and strict size verification is required.<\/li>\n\n\n\n
- Wear resistance: Alloy products with high wear resistance should be selected. High quality blades can significantly reduce replacement frequency and improve equipment attendance.<\/li>\n\n\n\n
- Installation direction: The left and right spiral blades have strict rotation direction differentiation. Incorrect installation can result in the inability to transport materials outward or even damage to the equipment.<\/li>\n<\/ol>\n\n\n\n
Conclusion<\/h3>\n\n\n\n
BOMAG paver spiral blades are not only simple “spiral conveyors”, but also precision components that integrate fluid mechanics and wear-resistant material technology. By scientifically configuring reverse blades and selecting high wear-resistant materials, BOMAG provides users with an effective solution to combat material segregation and improve the smoothness of spreading. For construction units, paying attention to the wear status and selection quality of this detail component is a key step in achieving high-quality pavement engineering.<\/p>\n\n\n\n
Ma’anshan Datai Machinery Technology Co., Ltd. specializes in providing spiral blades D213802203, D213802204, 89320122, and 89320213 for BOMAG asphalt pavers. Welcome to contact our engineer Mr. Li Chao for consultation<\/p>\n\n\n\n
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