Lifting Hook for Handling Large PIpes
Throughout the entire process of steel pipe production, storage, and transportation, hoisting scratches, inefficiencies, and safety hazards remain three major pain points in the industry. Traditional wire rope hoisting not only easily leaves deep marks on the steel pipe surface (resulting in a scrap rate as high as 5%), but also carries the risk of slippage (resulting in over 10 million yuan in losses annually from hoisting accidents). The emergence of Liwen's specialized pipe hoisting equipment has completely rewritten the "extensive" history of steel pipe hoisting!
Core Design: Ensures "Stable and Flexible" Lifting
1. Anti-Scratch Technology - Nylon Protective Blocks
High-density, wear-resistant nylon blocks (hardness Shore D 85) are used at the contact points between the spreader and the steel pipe. The friction coefficient is as low as 0.15, providing a firm grip on the pipe (preventing slippage) while minimizing damage to the surface coating (measured scratch rate <0.5%). Even delicate nuclear power pipes and military-grade pipes can be lifted with zero damage.
2. Heavy-Duty Gene - High-Strength Alloy Body
The spreader body is constructed of Q460C low-alloy high-strength steel (yield strength 460MPa). Through a one-piece forging and heat treatment process, each spreader has a rated load of up to 15 tons (safety factor ≥ 5). Combined with G80-grade chain (breaking force 100 tons), it easily handles various steel pipes ranging from 200 to 1200 mm in diameter. 3. Second-Level Adaptation - Universal Rotation Design
The top of the spreader is equipped with a universal rotating shackle (360° rotation without dead angles), enabling quick alignment and hooking regardless of how densely stacked the steel pipes are. During operation, the spreader automatically adjusts the load angle to avoid localized stress concentration on the steel pipes (eliminating the risk of "strangulation").
🚧 Multi-Scenario "Hack" Performance
1. Steel Pipe Factory: Full Process Protection from Raw Materials to Finished Product
Raw Material Warehouse: The spreader precisely grasps entire bundles of hot-rolled pipes, preventing dents from the wire rope (reducing raw material waste by 30%);
Finished Product Warehouse: When lifting precision cold-rolled pipes, nylon blocks isolate metal friction and ensure a smooth surface finish (increasing customer inspection pass rate to 99%). 2. Ports and Terminals: A "Stable" in Strong Winds
In winds as strong as Force 5, the spreader's streamlined structure (drag coefficient ≤ 0.8) and weighted base (200kg deadweight) keep its swing amplitude within ±10cm. Combined with a remote-controlled gantry crane, it can handle 300 tons of steel pipe in a single shift (a 40% efficiency increase).
3. Construction Sites: A "Master Key" for Complex Working Conditions
Facing muddy construction sites and chaotically stacked steel pipes, the spreader's quick hook design (securing a single lifting point in 3 seconds) and multi-limb chain assembly (synchronous load-bearing 4-8 limbs) allow crane operators to precisely position the pipe even during blind lifting, eliminating secondary handling (saving 2 hours of work per day).
Throughout the entire process of steel pipe production, storage, and transportation, hoisting scratches, inefficiencies, and safety hazards remain three major pain points in the industry. Traditional wire rope hoisting not only easily leaves deep marks on the steel pipe surface (resulting in a scrap rate as high as 5%), but also carries the risk of slippage (resulting in over 10 million yuan in losses annually from hoisting accidents). The emergence of Liwen's specialized pipe hoisting equipment has completely rewritten the "extensive" history of steel pipe hoisting!