Formwork Lifting Ring - The Core Safety Component for Formwork Hoisting

It completely solves the industry pain points of "insufficient load-bearing, poor adaptability, and lack of safety guarantees" in formwork hoisting. Suitable for aluminum formwork, steel formwork, and precast concrete formwork lifting, it has become the safety first choice for high-rise residential buildings and bridge projects, serving more than 2,000 infrastructure projects worldwide.

1.1 Ultra-High Standard Safety Assurance, Zero Lifting Risk​

Made of 4140 high-strength alloy steel through integral forging, with "quenching + tempering" double heat treatment, the tensile strength reaches 800MPa, far exceeding the 600MPa standard of ordinary 45# steel . Strictly following 6:1 safety factor design (some models support 8:1 customization), the working load limit (WLL) covers 5-20 tons, and the ultimate breaking load is more than 6 times the rated value. It passes the tensile test of 2 times the rated load and provides authoritative test reports . The lifting ring body undergoes 100% electromagnetic crack detection without any hidden defects. The pink powder coating not only resists rust but also intuitively indicates the "tested and qualified" status, enabling traceability of safety responsibilities .​

1.2 360° Rotation Structure, Adapting to Complex Lifting Scenarios​

Innovatively adopting a universal joint connection design, the lifting ring can achieve 360° free rotation and 180° flexible flipping. It automatically adjusts the force angle during formwork hoisting, avoiding lateral stress damage to the formwork or the lifting ring caused by hoisting deviation . Equipped with an anti-slip locking thread structure, the thread specifications cover the full range of M20-M48. The thread profile is processed by precision rolling, and with special anti-loosening washers, the torque retention force after installation reaches 80kg·m, ensuring no loosening during hoisting, suitable for lifting aluminum formwork, steel formwork, and other material formworks.​

1.3 All-Environment Durable Design, Reducing Maintenance Costs​

The surface adopts hot-dip galvanizing + passivation double anti-rust treatment, with a salt spray test of more than 1000 hours. It can be used for a long time without rust in humid environments such as bridges and underground garages, and its service life is 3 times longer than ordinary galvanized products . The lifting ring head adopts an "arc transition" design to avoid stress concentration and can withstand high-frequency lifting impacts. It can be used cyclically more than 10,000 times under rated load without deformation. Adapting to extreme construction environments from -40℃ to 60℃, it does not become brittle at low temperatures or deform at high temperatures, eliminating frequent replacement and maintenance.​

1.4 Customization Service, Matching Diverse Engineering Needs​

Full-dimensional customization is supported: the material can be upgraded to 316 stainless steel (for coastal high-salt environments); surface treatment options include powder coating (color customization) and blackening treatment (high-temperature scenarios); dimensions can be customized for thread length (22-80mm), lifting ring diameter (50-180mm), and load-bearing level (up to 30 tons) . A complete "lifting ring + base socket" solution is provided. The socket has a built-in steel bar fixing hole, which forms a firm anchor point after being tied to the formwork steel bar, avoiding falling during hoisting, especially suitable for precast concrete formwork scenarios .

3.1 Core Load-Bearing Component (Safety Core)​

Composed of an integrally forged lifting ring body and a universal joint. The lifting ring body adopts a "U-shaped arc" design to avoid stress concentration, with uniform wall thickness (14-40mm); the universal joint uses a high-strength bearing structure, which can bear both radial and axial loads, with a rotation torque ≤5N·m, ensuring flexible angle adjustment during hoisting and reducing formwork shaking .​

3.2 Thread Connection System (Adaptability Core)​

The thread part is processed by rolling technology, with a thread accuracy of 6H grade and a surface roughness of Ra≤1.6μm. It is combined with an anti-loosening thread design, which closely engages with the formwork base after installation. A torque indicator ring is set at the bottom, which automatically changes color when the installation torque reaches the standard value (60-120kg·m), intuitively confirming the installation is in place and avoiding manual operation errors.​

3.3 Anti-Rust Coating (Durability Core)​

The hot-dip galvanizing layer has a thickness of ≥80μm, with adhesion reaching level 1 (no peeling in the cross-cut test). The surface passivation treatment forms a dense oxide film, effectively blocking water vapor and concrete corrosion media. The inner side of the lifting ring adopts a "rounded corner + full coating" design, with no painting dead corners, solving the problem of easy rusting on the inner side of traditional lifting rings.

Choosing Shaanxi Flourish's Formwork Lifting Ring is a double guarantee for formwork hoisting safety and efficiency. From high-rise aluminum formwork to heavy steel formwork, from inland construction sites to coastal projects, we use compliant design and durable quality to escort every hoisting operation!