Products
1 Inch Trailer Forged 55° Angled D-Ring with Weld-on Mounting Bracket
This 1-inch forged 55° angled D-ring from Truecasteng—which includes a weld-on mounting bracket—is designed for heavy-duty cargo securement applications. Combining precision engineering with rugged durability to meet the demands of the most rigorous industrial uses, it is the ideal choice for professionals who prioritize strength and versatility.
Colour: Original / Black
Materials: High quality alloy steel
Production processes:Forging
Heat Treatment: Normalizing, Annealing, Quenching, Tempering
Surface Finish: Shot Blasting, Polishing, Baking Varnish
Certificates: IATF16949
Transport Package: Wooden Case
Delivery Time: 15-20 Days
1. Technical Specifications
| Product Name | Forged 1Inch 55° Angled D-Ring With Weld-On Mounting Bracket |
| Part No | 1 inch D-Ring |
| Working load limit | 15,586 lb |
| Diameter | 1.0″ [25.4 mm] |
| Total weight | 3.52 lb /1.6 KG |
| Type | 55° D-Ring |
| Tensile Strength(MPa) | ≥1200 |
| Yield Strength(MPa) | ≥1000 |
| Impact (J) | ≥50 |
| Hardness (HB) | 300-330 |
| Total thickness(H) | 1.0″ [25.4 mm] |
| Total length (L) | 6.0″ [152.4 mm] |
| In inner1 | 4″ [101.6 mm] |
| In inner2 | 3″ [76.2 mm] |
| Width (W) | 5.0″ [127 mm] |
| Materials | 51CrV4/52CrMoV4/60CrMo3-3 |
| Production Processes | Forging Process |
| Certificates | IATF 16949 |
| Heat Treatment | Quenching, Tempering |
2. Capabilities
This 1-inch forged 55° angled D-ring serves as the ultimate premium, heavy-duty cargo control solution for industrial and trailer applications. To ensure seamless integration into your production lines or product catalog, this assembly is manufactured to strict dimensional and mechanical tolerances.
| Feature | Specification | Advantage |
| Material Grade | Premium Alloy Steel (AISI 4140 Equivalent) | Superior strength-to-weight ratio & high impact resistance |
| Manufacturing Process | 12,000-Ton Hydraulic Forging + CNC Machining | Continuous grain flow line alignment, eliminating internal defects |
| Heat Treatment | Normalizing, Annealing, Quenching & Tempering | Achieves optimal hardness profile (HRC 32-36) for anti-deformation |
| Dimensional Tolerance | Precise ± 0.2mm | Guarantees consistent robot-welding compatibility and fitment |
| Geometry | 55° Angled Offset | Optimizes strap routing, reduces edge loading, and extends strap lifespan |
3. Key Product Advantages
3.1. Innovative 55° Angled Geometry
Traditional straight D-rings often cause severe edge loading and premature strap abrasion under high-tension tie-downs. Our optimized 55° angled configuration allows for a natural, smoother strap alignment. By distributing multi-directional forces evenly across the entire contact surface, it significantly enhances transit safety and prolongs the service life of both the D-ring and the tie-down straps.
3.2. Uncompromising Structural Integrity (Forged vs. Cast)
Unlike standard cast alternatives that are prone to brittle fracturing under sudden shocks, each Truecasteng D-ring is shaped under extreme pressure using 12,000-ton hydraulic forging press. This process refines the internal steel grain structure to follow the exact contours of the ring, delivering unmatched tensile strength and structural reliability.After forging, each piece undergoes CNC machining to achieve precise dimensional accuracy (±0.2mm tolerances).
3.3. Rigorous Quality Control & Traceability
Every production batch undergoes a comprehensive multi-stage thermal processing regimen and precise metallurgical testing. With a strictly controlled hardness of HRC 32-36, these brackets offer excellent weldability while preventing brittle failure in sub-zero working environments.
4. Why Partner with Truecasteng?
As a single-source casting manufacturer and supplier, Truecasteng offers a complete product range across spring, truck suspension, steering, driveline, coupling, and hitch product lines. We provide international buyers with everything you need under one roof, backed by rigorous batch testing, reliable lead times, and comprehensive technical support.
Partner with industry-leading precision casting experts to bring your vision to life. We specialize in delivering custom, high-quality casting solutions. With years of experience, cutting-edge technology, and an unwavering commitment to excellence, we ensure every component exceeds your expectations.