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Application of Pass Through Type Shot Blasting Machines in the Steel Structure Industry
发布时间:
2026-07-31
In the raw material pretreatment phase for steel structures, the Qingdao KEEJOO
In the raw material pretreatment phase for steel structures, the Qingdao KEEJOO Group’s steel plate and section steel pretreatment line integrates a comprehensive process encompassing loading, shot blasting, automated painting, and drying. Designed to treat raw materials—such as hot-rolled steel plates, H-beams, and channel steels—it effectively removes rolling scale and surface rust. A single pass through the system enables workpieces to achieve the Sa2.5 rust removal
standard, creating a standardized surface anchor profile for subsequent coating. The equipment supports continuous, uninterrupted feeding and production, with a single line capable of processing hundreds of tons of steel per day. By replacing traditional acid pickling and manual sandblasting methods, this system not only eliminates the environmental pollution associated with chemical waste fluids but also significantly boosts the material processing efficiency of steel structure manufacturing enterprises.
Qingdao KEEJOO Group’s standard pass through type shot blasting machine serves as the primary processing equipment for steel beams, box columns, cruciform columns, and architectural trusses within industrial facilities. This equipment features a patented, multi-directional layout of shot blasting units, paired with a variable-frequency-controlled roller conveyor system. This configuration enables the comprehensive removal of weld spatter, welding scale, and surface
rust from structural components. Simultaneously, the impact of the steel shot serves to relieve residual welding stresses and enhance the mechanical properties of the component surfaces, thereby effectively improving the adhesion of subsequent anti-corrosion coatings and reducing the rate of future anti-corrosion rework on steel structures. To address the specific requirements of round pipes and hollow tubular members used in space frame structures, the
company offers a customized V-roller conveyor shot blasting model. This specialized design facilitates 360-degree self-rotation of the pipes during processing, ensuring complete, dead-angle-free shot blasting coverage and perfectly meeting
the production demands for tubular steel space frames and pipeline steel structures.
Specifically designed for heavy-duty and specialized steel structure sectors—such as bridge engineering, wind turbine towers, and construction machinery—Qingdao KEEJOO Group’s customized, heavy-load, wide-span pass through type shot blasting machines offer distinct advantages. Large-scale, thick-walled components—including steel box girders, segmented wind turbine towers, crane main beams, and tower crane standard sections—meet rigorous acceptance standards for heavy-duty anti-corrosion applications after undergoing treatment with this equipment. These products have been successfully supplied to numerous domestic projects, ranging from highway bridges to new energy wind power installations. Furthermore, Qingdao KEEJOO Group’s shot blasting equipment is simultaneously exported to various countries across Southeast Asia, Japan, South Korea, Europe, and the Americas, thereby supporting production operations at steel structure manufacturing facilities worldwide.
In projects involving construction climbing scaffolds, steel beams in aging industrial facilities, and the refurbishment of discarded pipelines, pass through type shot blasting machines can rapidly strip away old paint layers, rust, and concrete buildup. By employing a physical treatment method to replace highly polluting chemical paint-stripping processes—and aligning with current environmental production policies—these machines have become highly favored by companies specializing in scaffold leasing and recycled steel structures.
In alignment with the evolving trends in the intelligent manufacturing of steel structures, Qingdao KEEJOO Group has taken a dual approach: on one hand, it has introduced cost-effective, light-duty pass-through shot blasting equipment to support the market needs of small and medium-sized steel structure fabrication plants; on the other, it has accelerated the R&D of intelligent, integrated pretreatment production lines, thereby enabling the seamless integration of the shot blasting process with automated assembly and painting lines. Moving forward, the company will continue to focus on meeting the demand for innovative processes within the steel structure industry and optimizing the performance of its shot blasting equipment, leveraging domestic intelligent manufacturing capabilities to drive the high-quality and green development of China's steel structure sector.
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