{"product_id":"back-circle","title":"Back Circle","description":"\u003cp\u003e1. The thickened steel plate hot-dip galvanized back ring securely holds the standard section, preventing it from sliding off. It is rust-resistant and durable over the years, allowing one set to be used in multiple construction sites. There is almost no maintenance or renovation cost. The full range of models is available in large quantities, and the batch purchase offers high cost-effectiveness, reducing the investment in tower crane safety inspections.\u003cbr\u003e2. The arc-shaped design fits the standard section precisely, and the hole positions are standard, eliminating the need for on-site processing. The locking is firm and does not slip. The edges are polished smoothly without damaging the main pipe, making disassembly and assembly easier, and ensuring safe lifting operations.\u003cbr\u003e3. The standardized dimensions are unified and standardized, directly matching the tower crane standard section for factory production. The hot-dip galvanizing process enhances the overall quality of the machine. Stable and large-scale supply ensures support for non-standard pipe diameters through mold customization, enhancing the competitiveness of the entire machine in bidding.\u003cbr\u003e1. The plate structure has high strength and resistance to deformation and impact. The thickened steel plate is formed by overall bending, providing sufficient rigidity for the tower crane's rotation and operation. It is less likely to deform or crack due to compression and impact, resulting in high overall flatness and good assembly fit.\u003cbr\u003e2. The overall hot-dip galvanizing process ensures a uniform and dense coating, protecting the machine from the effects of sun exposure, rain, dust, and moisture. Compared to painting, it is less prone to rusting and peeling. Outdoor use for a long time requires less frequent maintenance and renovation.\u003cbr\u003e3. The edges are deburred and passivated, without sharp edges, making the assembly process less likely to scratch the sealing components and personnel hands.\u003cbr\u003e4. The internal diameter, outer diameter, and positioning claw holes are pre-fabricated according to the mainstream tower crane slewing bearing dimensions. They are directly fitted and assembled, and can be fixed with bolts after alignment of the hole positions. No on-site drilling, cutting, or modification is required. The assembly efficiency is high.\u003cbr\u003e4. It can be customized for inner diameter, outer diameter, the number of claws, and the spacing of the holes to adapt to the retrofit of non-standard slewing mechanisms of various brands and the new machine's matching requirements.\u003cbr\u003e5. The protective function is complete, protecting the core components. The circular shielding structure prevents sand, dust, and construction debris from entering the slewing bearing gear ring, avoiding gear jamming, wear, and rusting, prolonging the service life of the slewing bearing, and reducing maintenance and replacement costs.\u003cbr\u003e5. The factory produces and bends the plates in batches for pre-fabrication. Common models have sufficient stock of ready-made products. The delivery cycle for large-scale tower crane matching orders is stable. The dimensions and bending strength are inspected in batches, and the interchangeability of products in the same batch is excellent. It is suitable for the factory's matching, leasing company's maintenance, and large-scale inventory preparation for tower crane manufacturers and rental companies.\u003c\/p\u003e","brand":"Xinsiyu","offers":[{"title":"Default Title","offer_id":47665059889323,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0792\/7319\/7739\/files\/21.jpg?v=1787278942","url":"https:\/\/cd-xinsiyu.com\/products\/back-circle","provider":"cd-xinsiyu.com","version":"1.0","type":"link"}