1.Introduction
Double-ear pull ring bolt is a forged fastener with integrated threaded base and two symmetrical lugs. It is screwed into components or embedded in concrete. Equipped with pins, wire ropes and chains, it serves as load‑bearing points for hoisting and diagonal tension. The double‑ear design distributes load and improves safety under angular pulling‑force conditions.
2.Core Function
-Load-bearing and anchoring function: Provides reliable load-bearing points, bears oblique and vertical tension, and is used for hoisting equipment, tightening steel structures, and fixing cantilever components; single-ear lifting rings are prone to breakage under lateral force, while double-ear structures can withstand multi-angle tension and are suitable for oblique tension conditions.
-Even load distribution: Distributing concentrated loads across the two lugs reduces pressure on individual lugs, alleviates metal fatigue caused by long-term heavy loads, and extends service life.
-Two-way connection adapter: It can connect to two sets of tie rods or rigging at the same time. The installation pin is simple and quick, eliminating the need for additional shackle accessories and simplifying the assembly structure.
-Corrosion resistant and durable: Available in alloy steel, 304/316 stainless steel, hot-dip galvanized, and Dacromet coating versions, suitable for outdoor humid, marine salt spray, and harsh mining environments.
3.Industry use
1. Construction Engineering Industry
Pre-embedded lifting points for cantilevered scaffolding, cantilevered I-beams, external wall suspended scaffolding, and precast concrete components; double-eared pull ring anchors are pre-embedded in concrete walls, and together with diagonal tie rods to hold the steel beams, stabilizing the cantilevered supports and ensuring the safety of external wall construction. They are standardized supporting fasteners for construction sites.
2.General Machinery Equipment
Installation and hoisting of motors, reducers, housings, pressure vessels, and machine tool bases; equipment is pre-installed with double-ear pull rings at the factory for easy hoisting, loading, and on-site installation; heavy-duty equipment is preferably made of 10.9 grade alloy steel.
3.New energy industry
Wind turbine tower components and photovoltaic support steel structures are tightened and fixed; solar energy equipment and energy storage equipment are hoisted and fixed; stainless steel is used for coastal projects to resist salt spray corrosion.
4.Mining and construction machinery industries
For the fixing of excavator and crane parts and underground conveyor supports; for the tightening and anchoring of underground pipelines and support components in mines, adapting to vibration and heavy-load conditions.
5.Steel Structure and Power Industry
Factory steel beam tensioning, tower accessories, and cable bracket fixing; used to tighten steel structure diagonal braces and reinforce frame structures.
4.Selection summary
-Construction sites: Hot-dip galvanized alloy steel double-ear pull rings preferred.
-Offshore and coastal projects: 316 stainless steel double-ear pull rings are selected.
-Heavy equipment hoisting: Made of heat-treated forged alloy steel.
If you have any questions about the specifications, load rating, surface treatment, or customization options for double-ear pull rings, please feel free to contact us. Handan Jihao Fasteners can provide selection advice, factory inspection reports, and reasonable quotations based on project conditions.
WhatsApp+8613111607537
Email：baiyanyun@219gmail.com