Hebei Shuangtai Mold Frame Technology Co., Ltd. is one of the most reliable manufacturers and suppliers of ringlock adjustable u head jack in China, featured by quality products and good service. Please rest assured to buy discount ringlock adjustable u head jack from our factory. We also accept customized orders.
Hebei Hongxiang Construction Engineering Materials Co., Ltd. specializes in the production of complete sets of components for disc-lock formwork. They have independently developed a standardized Ringlock Adjustable U-Head Jack, a core load-bearing adjustment component at the top of the disc-lock formwork support system. Fully compliant with the JGJ/T231-2021 safety standard for socket-type disc-lock scaffolding, it can withstand the entire cast-in-place load of the beam bottom joists and double-channel steel main beams. Utilizing seamless solid threaded rods (No. 20), thickened U-shaped top plates, thickened self-locking nuts, 70μm hot-dip galvanized anti-corrosion coating, and fully automated integrated welding technology, the company manages the entire supply chain from raw materials, processing, anti-corrosion, to testing.
This solves common safety hazards in high-formwork systems, such as bent threaded rods, thin and easily cracked nuts, weld detachment, galvanized layer peeling and corrosion, adjustment jamming, and insufficient load-bearing capacity, common in inferior top support threaded rods. It is widely applicable to underground water purification plants, subway tunnels, pumped storage power stations, large public buildings, municipal bridges, and large-span high-formwork construction scenarios in overseas infrastructure projects.
The complete Ringlock Adjustable U-Head Jack set... Jack performs comprehensive hot-dip galvanizing for corrosion protection, both inside and outside the product, with a stable zinc layer thickness controlled at 70μm, unlike the simple protective supports offered by cold galvanizing and spray painting on the market. The complete galvanizing process includes six major steps： degreasing and oiling the lead screw, thorough rust removal by high-temperature pickling, activation by fluxing agent, overall immersion in 450℃ molten zinc liquid, passivation and cooling, and fine cleaning of thread gaps.
. The lead screw, nut, U-shaped support plate, and stiffening plate are all immersed in the zinc liquid to form a metallurgically bonded zinc-iron alloy layer, ensuring no missed galvanizing in thread gaps or weld dead corners. In harsh environments such as construction site cement slurry erosion, rainwater soaking, high moisture levels in underground tunnels, coastal salt spray, and hot and humid conditions overseas, the zinc coating, relying on sacrificial anodes, continuously protects the substrate, preventing issues like thinning due to rust on the lead screws, thread jamming, and thinning due to rust on the support plates. The uniform silver-gray metallic appearance and neat, orderly frame structure have passed both civilized construction site and green building material inspections on the first attempt. The integrated ringlock system has been rated as a green product in the formwork and scaffolding industry. After over ten years of outdoor cyclical use, there has been no significant rust damage. Long-term use will not weaken the top layer's load-bearing capacity due to rust, ensuring structural stability throughout the entire high-formwork pouring process.
Fully automated machine production minimizes human error. Every adjustable upper support lead screw exhibits uniform precision in thread alignment, nut matching, support plate welding strength, and coating thickness. All 48/60 ringlock uprights are universal, achieving high industry standards in component interchangeability.
Hongxiang Ringlock Adjustable U Head Jack is a key component in high-support formwork systems for balancing elevation and transferring top loads. In the standardized erection process, after the uprights are spliced, the threaded rod is inserted into the upright for no less than 150mm. The bottom elevation of the beam is precisely adjusted by turning the nut with a wrench.
The U-shaped groove supports the timber or double-channel steel main beam. Combined with multiple horizontal bars and vertical diagonal bars, it forms a triangular stable grid, which greatly reduces major safety hazards such as slippage at the top of the frame, eccentric instability, and local collapse. This product is compatible with the company's complete set of 60/48 series disc-lock uprights, horizontal bars, diagonal braces, bases, adjustable bottom supports, and steel footplates. Elevation adjustment can be completed using only a standard wrench, eliminating the need for custom-made parts.
Construction leveling efficiency is increased by over 50% compared to ordinary non-standard top supports, effectively shortening the construction period for high formwork erection and elevation correction.
The company has a professional technical team that can provide guidance on top support layout and cantilever length control specifications based on construction drawings. Simultaneously, it provides a complete set of qualification certificates, material certificates, and third-party testing reports, offering a one-stop solution for procurement, expert review and testing, and on-site technical support needs. Adhering to the core business philosophy of "Today's quality, tomorrow's market," Hongxiang uses precision-manufactured, long-lasting corrosion-resistant, and high-strength pressure-bearing standardized Ringlock Adjustable U Head Jacks to build a solid top-level load-bearing safety line for high formwork projects in infrastructure both domestically and internationally.
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